CN110067669A - Two body welding type piston structures of one kind and its manufacturing method - Google Patents
Two body welding type piston structures of one kind and its manufacturing method Download PDFInfo
- Publication number
- CN110067669A CN110067669A CN201910350377.2A CN201910350377A CN110067669A CN 110067669 A CN110067669 A CN 110067669A CN 201910350377 A CN201910350377 A CN 201910350377A CN 110067669 A CN110067669 A CN 110067669A
- Authority
- CN
- China
- Prior art keywords
- piston
- combustion chamber
- aluminum
- strengthening part
- piston main
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005493 welding type Methods 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000002485 combustion reaction Methods 0.000 claims abstract description 176
- 238000005728 strengthening Methods 0.000 claims abstract description 148
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 123
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 123
- 238000003466 welding Methods 0.000 claims abstract description 27
- 238000005266 casting Methods 0.000 claims description 64
- 238000001816 cooling Methods 0.000 claims description 64
- 230000032683 aging Effects 0.000 claims description 29
- 229910001018 Cast iron Inorganic materials 0.000 claims description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 15
- 229910002804 graphite Inorganic materials 0.000 claims description 15
- 239000010439 graphite Substances 0.000 claims description 15
- 238000007639 printing Methods 0.000 claims description 15
- 238000012797 qualification Methods 0.000 claims description 15
- 239000000126 substance Substances 0.000 claims description 15
- 238000010791 quenching Methods 0.000 claims description 14
- 239000000956 alloy Substances 0.000 claims description 13
- 239000002131 composite material Substances 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 12
- 229910000838 Al alloy Inorganic materials 0.000 claims description 11
- 230000000171 quenching effect Effects 0.000 claims description 11
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 8
- 239000004411 aluminium Substances 0.000 claims description 8
- OJMOMXZKOWKUTA-UHFFFAOYSA-N aluminum;borate Chemical compound [Al+3].[O-]B([O-])[O-] OJMOMXZKOWKUTA-UHFFFAOYSA-N 0.000 claims description 8
- 239000011159 matrix material Substances 0.000 claims description 6
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 5
- 230000035882 stress Effects 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 2
- 238000005476 soldering Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 47
- 239000000047 product Substances 0.000 description 29
- 230000002708 enhancing effect Effects 0.000 description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 238000007689 inspection Methods 0.000 description 13
- 239000006104 solid solution Substances 0.000 description 11
- 239000000919 ceramic Substances 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 238000004663 powder metallurgy Methods 0.000 description 6
- 239000000835 fiber Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000005242 forging Methods 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 4
- 229910001141 Ductile iron Inorganic materials 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000005474 detonation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 150000003839 salts Chemical group 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000000930 thermomechanical effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F3/0015—Multi-part pistons
- F02F3/003—Multi-part pistons the parts being connected by casting, brazing, welding or clamping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F3/0084—Pistons the pistons being constructed from specific materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F3/16—Pistons having cooling means
- F02F3/20—Pistons having cooling means the means being a fluid flowing through or along piston
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F3/26—Pistons having combustion chamber in piston head
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F3/0015—Multi-part pistons
- F02F3/003—Multi-part pistons the parts being connected by casting, brazing, welding or clamping
- F02F2003/0061—Multi-part pistons the parts being connected by casting, brazing, welding or clamping by welding
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses a kind of two body welding type piston structures and its manufacturing methods, including aluminum piston main part and combustion chamber strengthening part, the combustion chamber strengthening part to be fixedly connected on the top of aluminum piston main part.This two bodies welding type piston structure enhances piston combustion bowl or even overall performance obvious by the way that separately fabricated combustion chamber or the soldering of piston crown strengthening part to aluminum piston main part, are made high-intensitive combustion chamber strengthening part；It is considered as various structures on piston structure, is partially inclined-plane using two body faying faces；It in addition is main part faying face for inclined-plane, combustion chamber strengthening part can increase the bonding strength of faying face in friction welding with multiple tracks annulus protrusion or spiral salient either screw thread.
Description
Technical field
The present invention relates to piston manufacturing techniques fields, and in particular to two body welding type piston structures of one kind and its manufacturer
Method.
Background technique
It is increasingly stringenter at present with emission request, commercial vehicle engine all develops to high-power, high load capacity direction, strengthens
Degree is continuously improved.The fatigue strength of piston performance, especially piston combustion bowl position is put forward higher requirements.To cope with this
It is required that partial engine piston uses forged steel material, but the material proportion is difficult to process greatly, constrains its popularization and application.Some
The head of engine piston increases ceramic composite to improve the thermal fatigue property of piston aditus laryngis, but uses ceramic composite
Higher cost, quality are difficult to control, and are not suitable for high-volume and promote and apply.Partial engine piston crown uses remelting skill at present
Art, Technology For Remelting are able to satisfy the requirement of aditus laryngis reinforcing, the remelting of piston aditus laryngis, ceramic alumina fiber enhancing etc. to a certain extent
The explosion pressure that technology is born can achieve 22MPa, but explosion pressure is more than that 22 MPa pistons will be difficult to bear.Piston aditus laryngis
Remelting enhancing site depth can only achieve 3,4mm, thus while the refinement of remelting region is obvious, improve the thermo-mechanical property of material bright
It is aobvious, but because of its thinner thickness, keep its influence degree limited.And ceramic fibre enhances piston inner cooling path due to being to have under high pressure
Salt core is molding, and salt core easily penetrates molten aluminum under high pressure and squeezes deformation, to cause ceramic fibre enhancing piston inner cooling path living
Plug is difficult to manufacture, therefore the industrial applications of ceramic alumina fiber enhancing single-piece piston face lot of challenges, last three now,
Four ten years can not thoroughly solve always.
Summary of the invention
For the defects in the prior art, the present invention provides a kind of two body welding type piston structures and its manufacturing method,
To solve the problems, such as that whole aluminum piston is not able to satisfy high power, high strengthening, low emission requirement at present, has structure, manufacturing process
It is relatively easy, it is able to satisfy the requirement of state six and the above high strengthening engine
The present invention is achieved by the following technical solutions:
A kind of two body welding type piston structures, including aluminum piston main part and combustion chamber strengthening part, the combustion chamber enhancing
Part is fixedly connected on the top of aluminum piston main part.
Preferably, the combustion chamber strengthening part is connected to the top of aluminum piston main part by friction welding (FW).
Preferably, the aluminum piston main part includes piston ring carrier and inner cooling path.
This two bodies welding type piston structure is by by separately fabricated combustion chamber or the soldering of piston crown strengthening part to aluminium
Piston main body part makes high-intensitive combustion chamber strengthening part, enhances piston combustion bowl or even overall performance obvious；In work
It is considered as various structures on plug structure, is partially inclined-plane using two body faying faces；It in addition be main part faying face is oblique
Face, combustion chamber strengthening part can increase knot in friction welding with multiple tracks annulus protrusion or spiral salient either screw thread
The bonding strength in conjunction face.
6. a kind of manufacturing method of two bodies welding type piston structure as described in claim 1, it is characterised in that: including with
Lower step:
(1) aluminum piston main part blank and combustion chamber strengthening part blank are manufactured respectively；
(2) ageing treatment is carried out to aluminum piston main part blank；
(3) roughing is carried out to aluminum piston main part blank and combustion chamber strengthening part blank respectively；
(4) aluminum piston main part and combustion chamber strengthening part are combined as a whole using friction welding (FW) mode, form piston, postwelding
Carry out stress processing；
(5) seam allowance, disengaging oilhole, pin hole, annular groove, outer circle and the combustion chamber of piston are processed respectively；
(6) it detects a flaw respectively to the inner cooling path of piston, insert and vortex；
(7) phosphatization is carried out to piston or phosphatization adds printing graphite treatment；
(8) after carrying out final physical and chemical, size detection qualification to piston, storage.
Preferably, in step (1), combustion chamber strengthening part blank is made of aluminium borate whisker aluminum matrix composite, and
Ageing treatment is carried out to the aluminium borate whisker aluminum matrix composite, aging temp is 210-250 DEG C, keeps the temperature 3-7h.
Preferably, in step (1), combustion chamber strengthening part is made of aluminum alloy materials, and is carried out to aluminum alloy materials
Ageing treatment, aging temp are 200-240 DEG C, keep the temperature 3-7h.
Preferably, in step (1), combustion chamber strengthening part blank is made of steel material, and preferably selects 42CrMo
Steel billet, 38MnVS6 steel billet, 304 stainless steels or ZG35CrMo steel.
Preferably, in step (1), combustion chamber strengthening part blank is made of titanium alloy material, and preferably titanium is selected to close
Golden blank or titanium alloy forging.
Preferably, in step (1), combustion chamber strengthening part blank is made of cast iron materials, and preferably selects compacted ink casting
Iron or spheroidal graphite cast-iron.
Preferably, in step (1), combustion chamber strengthening part blank is made of Cu alloy material, the Cu alloy material
For beryllium-bronze or brass.
Preferably, in step (1), aluminum piston main part blank, which uses, casts mode casting and forming of quenching.
Preferably, contain cast iron ring carrier in the aluminum piston main structure after casting, or contain inner cooling path, or contain simultaneously
Cast iron ring carrier and inner cooling path.
Preferably, in step (2), aging temp is 195-250 DEG C, keeps the temperature 3-7 hours.
The manufacturing method of this two bodies welding type piston structure selects following seven kinds of materials in combustion chamber strengthening part, first is that
Aluminium borate whisker aluminum matrix composite, ceramic material select aluminium borate whisker, and whisker size compares ceramic alumina fiber size
It greatly reduces, whisker more disperse in composite material, more tiny, reinforcing effect is be more good.Aluminium borate whisker aluminum matrix composite
The best piston aluminum material of our current intensity is compared, can be improved 120% or more；Second is that POWDER METALLURGY ALUMINIUM ALLOYS, due to using
Powder metallurgy forming, alloying element abundant Dispersed precipitate in the material, therefore by alloying element to the humidification of aluminium alloy
All be it is very huge, high temperature fatigue strength compares the best piston aluminum material of our current intensity, can be improved 100%；Third is that
Injection molding aluminum alloy materials, organize fine and closely woven after rolling, and fatigue behaviour increases substantially.Fatigue at high temperature performance comparison is commonly cast
Making aluminum alloy materials can be improved 50% or more；Fourth is that steel material, steel material elevated temperature strength can achieve nearly the ten of aluminium alloy
Times or so, and we are only to enhance throat site with it, therefore the increase comparison of weight uses for whole forged steel, are smaller
, while most of is aluminum alloy organism, and piston is made to have good thermal conductivity；Fifth is that manufactured using titanium alloy, this and steel alloy
Material context is similar: sixth is that using cast iron materials；Seventh is that, using the high intensity of alloyed copper, improving burning using Cu alloy material
The thermal fatigue strength at room position, can be improved 80% or more.This patent is fired by the superhigh intensity of combustor section in enhancing piston
While burning room position, the overall performance of piston is also substantially increased.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar element
Or part is generally identified by similar appended drawing reference.In attached drawing, each element or part might not be drawn according to actual ratio.
Fig. 1 and Fig. 2 is the main view and left view for the two body welding type piston structures that one embodiment of the invention provides；Fig. 3
It is not comprising combustion chamber strengthening part pot type piston with Fig. 4；Fig. 5 and Figure 22 is the roughing figure of aluminum piston main part；Fig. 6 and
Fig. 7, Fig. 8 and Fig. 9, Figure 10 and Figure 11, Figure 12 and Figure 13, Figure 14 and Figure 15, Figure 16 and Figure 17, Figure 18 and Figure 19, Figure 20 and figure
21 be the preceding combustion chamber enhancing structure of weldering and finished product is corresponding relationship.
In attached drawing, 1. aluminum piston main parts, 2. combustion chamber strengthening parts, 3. piston ring carriers, 4. inner cooling paths.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case where violating intension of the present invention, therefore the present invention is not limited by the specific embodiments disclosed below.It translates
It should be noted that be referred to as " being fixed on " another element when element, it can directly on the other element or
There may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly to separately
One element may be simultaneously present centering elements.It translates
Unless otherwise defined, all technical and scientific terms used herein and the technology for belonging to technical field of the invention
The normally understood meaning of personnel is identical.It is specific that term as used herein in the specification of the present invention is intended merely to description
The purpose of embodiment, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more relevant
Any and all combinations of listed item.
Embodiment 1
The embodiment includes aluminum piston main part 1 and combustion chamber strengthening part 2, the combustion chamber enhancing combined with Figure 1 and Figure 2,
Part 2 is fixedly connected on the top of aluminum piston main part 1.The aluminum piston main part 1 and the combustion chamber strengthening part 2
Faying face be inclined-plane；The faying face of the aluminum piston main part 1 is inclined-plane, the combination of the combustion chamber strengthening part 2
Face is the inclined-plane with multiple tracks annulus protrusion or spiral salient either screw thread；The combustion chamber strengthening part 2 passes through friction
Weldering is connected to the top of aluminum piston main part 1；The aluminum piston main part 1 includes piston ring carrier 3 or inner cooling path 4, or
Contain piston ring carrier 3 and inner cooling path 4 simultaneously.
The embodiment of the structure obtains by the following method, comprising the following steps:
((1) manufactures piston main body part blank with casting method, contains cast iron ring carrier and inner cooling path, casting process in structure
In, it is quenched mode using casting, i.e., in casting for piston, takes out mold and quench in water, carried out at solid solution using afterheat in casting for piston
Reason, it is energy saving while guaranteeing performance.Combustion chamber strengthening part aluminium alloy blank is manufactured with powder metallurgy process；
(2) respectively to piston main body part blank, combustion chamber strengthening part blank carry out ageing treatment, aging temp be 220 ±
20 DEG C, keep the temperature 3-7 hours；
(3) roughing is carried out to piston combustion bowl strengthening part blank, finally processes oil-free, anhydrous, powder metallurgy aluminium conjunction together
Golden combustion chamber strengthening part roughing structure is shown in Fig. 8；
(4) roughing is carried out to piston main body part blank, structure is shown in Fig. 5, finally processes together oil-free, anhydrous；
(5) piston main body part is combined as a whole with combustion chamber strengthening part by friction welding (FW) mode, rear to carry out destressing at once
Processing；
(6) roughing first is carried out to piston, respectively the seam allowance of finishing pistons, disengaging oilhole, pin hole, annular groove, outer circle, burning
Room；
(7) inner cooling path, insert, eddy current inspection are carried out respectively；
(8) piston carries out phosphatization or phosphatization adds printing graphite treatment；
(9) piston is after final physical and chemical, size detection qualification, and as warehousing finished products, delivery, finished product structure is as shown in Figure 9.
Embodiment 2
The embodiment includes aluminum piston main part 1 and combustion chamber strengthening part 2, the combustion chamber enhancing combined with Figure 1 and Figure 2,
Part 2 is fixedly connected on the top of aluminum piston main part 1.The aluminum piston main part 1 and the combustion chamber strengthening part 2
Faying face be inclined-plane；The faying face of the aluminum piston main part 1 is inclined-plane, the combination of the combustion chamber strengthening part 2
Face is the inclined-plane with multiple tracks annulus protrusion or spiral salient either screw thread；The combustion chamber strengthening part 2 passes through friction
Weldering is connected to the top of aluminum piston main part 1；The aluminum piston main part 1 includes piston ring carrier 3 or inner cooling path 4, or
Contain piston ring carrier 3 and inner cooling path 4 simultaneously.
The embodiment of the structure obtains by the following method, comprising the following steps:
(1) piston main body part blank is manufactured with casting method, contains cast iron ring carrier and inner cooling path, casting process in structure
In, it is quenched mode using casting, i.e., during casting for piston, blank is taken out in water of being quenched after mold immediately, more than casting for piston
Heat carries out solution treatment, energy saving while guaranteeing performance, manufactures combustion chamber strengthening part aluminium with injection molding method and closes
Golden blank；
(2) respectively to piston main body part blank, combustion chamber strengthening part blank carry out ageing treatment, aging temp be 220 ±
20 DEG C, keep the temperature 3-7 hours；
(3) roughing is carried out to piston combustion bowl strengthening part blank, finally processes oil-free, anhydrous, injection molding aluminium conjunction together
Golden combustion chamber strengthening part roughing structure is shown in Fig. 8；
(4) roughing is carried out to piston main body part blank, structure is shown in Fig. 5, finally processes together oil-free, anhydrous；
(5) piston main body part is combined as a whole with combustion chamber strengthening part by friction welding (FW) mode.Carry out destressing at once afterwards
Processing；
(6) seam allowance, the disengaging oilhole, pin hole, annular groove, outer circle, combustion chamber of piston are processed respectively；
(7) inner cooling path, insert, eddy current inspection are carried out respectively；
(8) piston carries out phosphatization or phosphatization adds printing graphite treatment；
(9) piston is after final physical and chemical, size detection qualification, and as warehousing finished products, delivery, finished product structure is as shown in Figure 9.
Embodiment 3
The embodiment includes aluminum piston main part 1 and combustion chamber strengthening part 2, the combustion chamber enhancing combined with Figure 1 and Figure 2,
Part 2 is fixedly connected on the top of aluminum piston main part 1.The aluminum piston main part 1 and the combustion chamber strengthening part 2
Faying face be inclined-plane；The faying face of the aluminum piston main part 1 is inclined-plane, the combination of the combustion chamber strengthening part 2
Face is the inclined-plane with multiple tracks annulus protrusion or spiral salient either screw thread；The combustion chamber strengthening part 2 passes through friction
Weldering is connected to the top of aluminum piston main part 1；The aluminum piston main part 1 includes piston ring carrier 3 or inner cooling path 4, or
Contain piston ring carrier 3 and inner cooling path 4 simultaneously.
The embodiment of the structure obtains by the following method, comprising the following steps:
(1) piston main body part blank is manufactured with casting method, contains cast iron ring carrier and inner cooling path, casting for piston mistake in structure
Cheng Zhong is quenched mode using casting, i.e., in water of quenching immediately after blank takes out mold, is carried out at solid solution using afterheat in casting for piston
Reason, it is energy saving while guaranteeing performance.It directly uses 42CrMo steel billet as combustion chamber strengthening part blank, carries out quenched
Processing, is tempered, 600-680 DEG C of tempering temperature immediately after quenching.
(2) timeliness is carried out to piston main body part blank.Aging temp is 220 ± 20 DEG C, keeps the temperature 3-7 hours
(3) roughing is carried out to piston combustion bowl strengthening part blank.42CrMo steel billet combustion chamber strengthening part roughing structure
See Figure 10.
(4) roughing is carried out to piston main body part blank, structure is shown in Fig. 5.Process guarantees that welding position is oil-free, nothing
Water.
(5) piston main body part is combined as a whole with combustion chamber strengthening part by friction welding (FW) mode.
(6) seam allowance, the disengaging oilhole, pin hole, annular groove, outer circle, combustion chamber of piston are processed respectively.
(7) inner cooling path, insert, eddy current inspection are carried out respectively.
(8) piston carries out phosphatization or phosphatization adds printing graphite treatment.
(9) piston is after final physical and chemical, size detection qualification, as warehousing finished products, delivery.Finished product structure is shown in Figure 11 institute
Show.
Embodiment 4
The embodiment includes aluminum piston main part 1 and combustion chamber strengthening part 2, the combustion chamber enhancing combined with Figure 1 and Figure 2,
Part 2 is fixedly connected on the top of aluminum piston main part 1.The aluminum piston main part 1 and the combustion chamber strengthening part 2
Faying face be inclined-plane；The faying face of the aluminum piston main part 1 is inclined-plane, the combination of the combustion chamber strengthening part 2
Face is the inclined-plane with multiple tracks annulus protrusion or spiral salient either screw thread；The combustion chamber strengthening part 2 passes through friction
Weldering is connected to the top of aluminum piston main part 1；The aluminum piston main part 1 includes piston ring carrier 3 or inner cooling path 4, or
Contain piston ring carrier 3 and inner cooling path 4 simultaneously.
The embodiment of the structure obtains by the following method, comprising the following steps:
(1) piston main body part blank is manufactured with casting method, contains cast iron ring carrier and inner cooling path, casting for piston mistake in structure
Cheng Zhong is quenched mode using casting, i.e., in water of quenching immediately after blank takes out mold, is carried out at solid solution using afterheat in casting for piston
Reason, it is energy saving while guaranteeing performance, directly use 38MnVS6 steel billet to forge material as combustion chamber strengthening part blank, forging
It beats laggard row and carries out temperature control cooling, be air-cooled to 600 DEG C hereinafter, being put into incubator slow cooling；
(3) roughing is carried out to piston combustion bowl strengthening part blank.42CrMo steel billet combustion chamber strengthening part roughing structure
See Figure 12；
(4) roughing is carried out to piston main body part blank, structure is shown in Fig. 5, and process guarantees that welding position is oil-free, anhydrous；
(5) piston main body part is combined as a whole with combustion chamber strengthening part by friction welding (FW) mode；
(6) seam allowance, the disengaging oilhole, pin hole, annular groove, outer circle, combustion chamber of piston are processed respectively；
(7) inner cooling path, insert, eddy current inspection are carried out respectively；
(8) piston carries out phosphatization or phosphatization adds printing graphite treatment；
(9) piston is after final physical and chemical, size detection qualification, as warehousing finished products, delivery；Finished product structure is as shown in Figure 13.
Embodiment 5
The embodiment includes aluminum piston main part 1 and combustion chamber strengthening part 2, the combustion chamber enhancing combined with Figure 1 and Figure 2,
Part 2 is fixedly connected on the top of aluminum piston main part 1.The aluminum piston main part 1 and the combustion chamber strengthening part 2
Faying face be inclined-plane；The faying face of the aluminum piston main part 1 is inclined-plane, the combination of the combustion chamber strengthening part 2
Face is the inclined-plane with multiple tracks annulus protrusion or spiral salient either screw thread；The combustion chamber strengthening part 2 passes through friction
Weldering is connected to the top of aluminum piston main part 1；The aluminum piston main part 1 includes piston ring carrier 3 or inner cooling path 4, or
Contain piston ring carrier 3 and inner cooling path 4 simultaneously.
The embodiment of the structure obtains by the following method, comprising the following steps:
(1) piston main body part blank is manufactured with casting method, contains cast iron ring carrier and inner cooling path, casting for piston mistake in structure
Cheng Zhong is quenched mode using casting, i.e., in water of quenching immediately after blank takes out mold, is carried out at solid solution using afterheat in casting for piston
Reason, it is energy saving while guaranteeing performance, using 304 precision stainless steel cast members as combustion chamber strengthening part blank；
(2) timeliness is carried out to piston main body part blank.Aging temp is 220 ± 20 DEG C, keeps the temperature 3-7 hours；
(3) roughing is carried out to piston combustion bowl strengthening part blank, 304 stainless steel combustion chamber strengthening part roughing structures are shown in
Figure 14；
(4) roughing is carried out to piston main body part blank, structure is shown in Fig. 5, and process guarantees that welding position is oil-free, anhydrous；
(5) piston main body part is combined as a whole with combustion chamber strengthening part by friction welding (FW) mode；
(6) seam allowance, the disengaging oilhole, pin hole, annular groove, outer circle, combustion chamber of piston are processed respectively；
(7) inner cooling path, insert, eddy current inspection are carried out respectively；
(8) piston carries out phosphatization or phosphatization adds printing graphite treatment；
(9) piston is after final physical and chemical, size detection qualification, as warehousing finished products, delivery.Finished product structure is as shown in Figure 15.
Embodiment 6
The embodiment includes aluminum piston main part 1 and combustion chamber strengthening part 2, the combustion chamber enhancing combined with Figure 1 and Figure 2,
Part 2 is fixedly connected on the top of aluminum piston main part 1.The aluminum piston main part 1 and the combustion chamber strengthening part 2
Faying face be inclined-plane；The faying face of the aluminum piston main part 1 is inclined-plane, the combination of the combustion chamber strengthening part 2
Face is the inclined-plane with multiple tracks annulus protrusion or spiral salient either screw thread；The combustion chamber strengthening part 2 passes through friction
Weldering is connected to the top of aluminum piston main part 1；The aluminum piston main part 1 includes piston ring carrier 3 or inner cooling path 4, or
Contain piston ring carrier 3 and inner cooling path 4 simultaneously.
The embodiment of the structure obtains by the following method, comprising the following steps:
(1) piston main body part blank is manufactured with casting method, contains cast iron ring carrier and inner cooling path, casting for piston mistake in structure
Cheng Zhong is quenched mode using casting, i.e., in water of quenching immediately after blank takes out mold, is carried out at solid solution using afterheat in casting for piston
Reason, it is energy saving while guaranteeing performance, using ZG35CrMo steel as combustion chamber strengthening part blank；
(2) timeliness is carried out to piston main body part blank.Aging temp is 220 ± 20 DEG C, keeps the temperature 3-7 hours；
(3) roughing, ZG35CrMo steel combustion chamber strengthening part roughing structure are carried out to piston combustion bowl strengthening part blank
See Figure 16；
(4) roughing is carried out to piston main body part blank, structure is shown in Fig. 5, and process guarantees that welding position is oil-free, anhydrous；
(5) piston main body part is combined as a whole with combustion chamber strengthening part by friction welding (FW) mode；
(6) seam allowance, the disengaging oilhole, pin hole, annular groove, outer circle, combustion chamber of piston are processed respectively；
(7) inner cooling path, insert, eddy current inspection are carried out respectively；
(8) piston carries out phosphatization or phosphatization adds printing graphite treatment；
(9) piston is after final physical and chemical, size detection qualification, and as warehousing finished products, delivery, finished product structure is as shown in Figure 17.
Embodiment 7
The embodiment includes aluminum piston main part 1 and combustion chamber strengthening part 2, the combustion chamber enhancing combined with Figure 1 and Figure 2,
Part 2 is fixedly connected on the top of aluminum piston main part 1.The aluminum piston main part 1 and the combustion chamber strengthening part 2
Faying face be inclined-plane；The faying face of the aluminum piston main part 1 is inclined-plane, the combination of the combustion chamber strengthening part 2
Face is the inclined-plane with multiple tracks annulus protrusion or spiral salient either screw thread；The combustion chamber strengthening part 2 passes through friction
Weldering is connected to the top of aluminum piston main part 1；The aluminum piston main part 1 includes piston ring carrier 3 or inner cooling path 4, or
Contain piston ring carrier 3 and inner cooling path 4 simultaneously.
The embodiment of the structure obtains by the following method, comprising the following steps:
(1) piston main body part blank is manufactured with casting method, contains cast iron ring carrier and inner cooling path, casting process in structure
In, it is quenched mode using casting, i.e., in casting for piston, takes out mold and quench in water, carried out at solid solution using afterheat in casting for piston
Reason, it is energy saving while guaranteeing performance, combustion chamber strengthening part blank is manufactured with beryllium-bronze material.
(2) ageing treatment is carried out to piston main body part blank, combustion chamber strengthening part blank respectively, aging temp is
220 ± 20 DEG C, keep the temperature 3-7 hours；
(3) roughing is carried out to piston combustion bowl strengthening part blank, finally processes oil-free, anhydrous, powder metallurgy aluminium conjunction together
Golden combustion chamber strengthening part roughing structure is shown in Figure 16；
(4) roughing is carried out to piston main body part blank, structure is shown in Fig. 5, finally processes together oil-free, anhydrous.
(5) piston main body part is combined as a whole with combustion chamber strengthening part by friction welding (FW) mode, is gone at once afterwards
Stress processing；
(6) roughing first is carried out to piston, respectively the seam allowance of finishing pistons, disengaging oilhole, pin hole, annular groove, outer circle, burning
Room；
(7) inner cooling path, insert, eddy current inspection are carried out respectively；
(8) piston carries out phosphatization or phosphatization adds printing graphite treatment；
(9) piston is after final physical and chemical, size detection qualification, and as warehousing finished products, delivery, finished product structure is as shown in Figure 17.
Embodiment 8
The embodiment includes aluminum piston main part 1 and combustion chamber strengthening part 2, the combustion chamber enhancing combined with Figure 1 and Figure 2,
Part 2 is fixedly connected on the top of aluminum piston main part 1.The aluminum piston main part 1 and the combustion chamber strengthening part 2
Faying face be inclined-plane；The faying face of the aluminum piston main part 1 is inclined-plane, the combination of the combustion chamber strengthening part 2
Face is the inclined-plane with multiple tracks annulus protrusion or spiral salient either screw thread；The combustion chamber strengthening part 2 passes through friction
Weldering is connected to the top of aluminum piston main part 1；The aluminum piston main part 1 includes piston ring carrier 3 or inner cooling path 4, or
Contain piston ring carrier 3 and inner cooling path 4 simultaneously.
The embodiment of the structure obtains by the following method, comprising the following steps:
(1) piston main body part blank is manufactured with casting method, contains cast iron ring carrier and inner cooling path, casting process in structure
In, it is quenched mode using casting, i.e., in casting for piston, takes out mold and quench in water, carried out at solid solution using afterheat in casting for piston
Reason, it is energy saving while guaranteeing performance, combustion chamber strengthening part blank is manufactured with brass material；
(2) respectively to piston main body part blank, combustion chamber strengthening part blank carry out ageing treatment, aging temp be 220 ±
20 DEG C, keep the temperature 3-7 hours；
(3) roughing is carried out to piston combustion bowl strengthening part blank, finally processed together oil-free, anhydrous.Combustion chamber enhanced portion
Roughing structure is divided to see Figure 18；
(4) roughing is carried out to piston main body part blank, structure is shown in Fig. 5, finally processes together oil-free, anhydrous；
(5) piston main body part is combined as a whole with combustion chamber strengthening part by friction welding (FW) mode, rear to carry out destressing at once
Processing；
(6) roughing first is carried out to piston, respectively the seam allowance of finishing pistons, disengaging oilhole, pin hole, annular groove, outer circle, burning
Room；
(7) inner cooling path, insert, eddy current inspection are carried out respectively；
(8) piston carries out phosphatization or phosphatization adds printing graphite treatment；
(9) piston is after final physical and chemical, size detection qualification, and as warehousing finished products, delivery, finished product structure is as shown in Figure 19.
Embodiment 9
The embodiment includes aluminum piston main part 1 and combustion chamber strengthening part 2, the combustion chamber enhancing combined with Figure 1 and Figure 2,
Part 2 is fixedly connected on the top of aluminum piston main part 1.The aluminum piston main part 1 and the combustion chamber strengthening part 2
Faying face be inclined-plane；The faying face of the aluminum piston main part 1 is inclined-plane, the combination of the combustion chamber strengthening part 2
Face is the inclined-plane with multiple tracks annulus protrusion or spiral salient either screw thread；The combustion chamber strengthening part 2 passes through friction
Weldering is connected to the top of aluminum piston main part 1；The aluminum piston main part 1 includes piston ring carrier 3 or inner cooling path 4, or
Contain piston ring carrier 3 and inner cooling path 4 simultaneously.
The embodiment of the structure obtains by the following method, comprising the following steps:
(1) piston main body part blank is manufactured with casting method, contains cast iron ring carrier and inner cooling path, casting for piston mistake in structure
Cheng Zhong is quenched mode using casting, i.e., in water of quenching immediately after blank takes out mold, is carried out at solid solution using afterheat in casting for piston
Reason, it is energy saving while guaranteeing performance；Using titanium alloy blank as combustion chamber strengthening part blank；
(2) timeliness is carried out to piston main body part blank, aging temp is 220 ± 20 DEG C, keeps the temperature 3-7 hours；
(3) roughing, titanium burn room strengthening part roughing knot are carried out to titanium alloy piston combustion chamber strengthening part blank
Configuration formula, is shown in Fig. 8；
(4) roughing is carried out to piston main body part blank, structure is shown in Fig. 5, and process guarantees that welding position is oil-free, anhydrous；
(5) piston main body part is combined as a whole with combustion chamber strengthening part by friction welding (FW) mode, rear to carry out destressing at once
Processing；
(6) seam allowance, the disengaging oilhole, pin hole, annular groove, outer circle, combustion chamber of piston are processed respectively；
(7) inner cooling path, insert, eddy current inspection are carried out respectively；
(8) piston carries out phosphatization or phosphatization adds printing graphite treatment；
(9) piston is after final physical and chemical, size detection qualification, and as warehousing finished products, delivery, finished product structure is as shown in Figure 9.
Embodiment 10
The embodiment includes aluminum piston main part 1 and combustion chamber strengthening part 2, the combustion chamber enhancing combined with Figure 1 and Figure 2,
Part 2 is fixedly connected on the top of aluminum piston main part 1.The aluminum piston main part 1 and the combustion chamber strengthening part 2
Faying face be inclined-plane；The faying face of the aluminum piston main part 1 is inclined-plane, the combination of the combustion chamber strengthening part 2
Face is the inclined-plane with multiple tracks annulus protrusion or spiral salient either screw thread；The combustion chamber strengthening part 2 passes through friction
Weldering is connected to the top of aluminum piston main part 1；The aluminum piston main part 1 includes piston ring carrier 3 or inner cooling path 4, or
Contain piston ring carrier 3 and inner cooling path 4 simultaneously.
The embodiment of the structure obtains by the following method, comprising the following steps:
(1) piston main body part blank is manufactured with casting method, contains cast iron ring carrier and inner cooling path, casting for piston mistake in structure
Cheng Zhong is quenched mode using casting, i.e., in water of quenching immediately after blank takes out mold, is carried out at solid solution using afterheat in casting for piston
Reason, it is energy saving while guaranteeing performance；Using titanium alloy forging as combustion chamber strengthening part blank；
(2) timeliness is carried out to piston main body part blank, aging temp is 225 ± 20 DEG C, keeps the temperature 3-7 hours；
(3) roughing, titanium burn room strengthening part roughing structure type are carried out to piston combustion bowl strengthening part blank
See Fig. 8；
(4) roughing is carried out to piston main body part blank, structure is shown in Fig. 5, and process guarantees that welding position is oil-free, anhydrous；
(5) piston main body part is combined as a whole with combustion chamber strengthening part by friction welding (FW) mode, rear to carry out destressing at once
Processing；
(6) seam allowance, the disengaging oilhole, pin hole, annular groove, outer circle, combustion chamber of piston are processed respectively；
(7) inner cooling path, insert, eddy current inspection are carried out respectively；
(8) piston carries out phosphatization or phosphatization adds printing graphite treatment；
(9) piston is after final physical and chemical, size detection qualification, and as warehousing finished products, delivery, finished product structure is as shown in Figure 9.
Embodiment 11
The embodiment includes aluminum piston main part 1 and combustion chamber strengthening part 2, the combustion chamber enhancing combined with Figure 1 and Figure 2,
Part 2 is fixedly connected on the top of aluminum piston main part 1.The aluminum piston main part 1 and the combustion chamber strengthening part 2
Faying face be inclined-plane；The faying face of the aluminum piston main part 1 is inclined-plane, the combination of the combustion chamber strengthening part 2
Face is the inclined-plane with multiple tracks annulus protrusion or spiral salient either screw thread；The combustion chamber strengthening part 2 passes through friction
Weldering is connected to the top of aluminum piston main part 1；The aluminum piston main part 1 includes piston ring carrier 3 or inner cooling path 4, or
Contain piston ring carrier 3 and inner cooling path 4 simultaneously.
The embodiment of the structure obtains by the following method, comprising the following steps:
(1) piston main body part blank is manufactured with casting method, contains cast iron ring carrier and inner cooling path, casting for piston mistake in structure
Cheng Zhong is quenched mode using casting, i.e., in water of quenching immediately after blank takes out mold, is carried out at solid solution using afterheat in casting for piston
Reason, it is energy saving while guaranteeing performance；Using vermicular cast iron casting parts as combustion chamber strengthening part blank.
(2) timeliness is carried out to piston main body part blank, aging temp is 220 ± 20 DEG C, keeps the temperature 3-7 hours；
(3) roughing, vermicular cast iron combustion chamber strengthening part roughing structure shape are carried out to piston combustion bowl strengthening part blank
Formula is shown in Figure 23 respectively.
(4) roughing is carried out to piston main body part blank, structure is shown in Figure 22, process guarantee welding position it is oil-free,
It is anhydrous；
(5) piston main body part is combined as a whole with combustion chamber strengthening part by friction welding (FW) mode, rear to carry out destressing at once
Processing；
(6) seam allowance, the disengaging oilhole, pin hole, annular groove, outer circle, combustion chamber of piston are processed respectively；
(7) inner cooling path, insert, eddy current inspection are carried out respectively；
(8) piston carries out phosphatization or phosphatization adds printing graphite treatment；
(9) piston is after final physical and chemical, size detection qualification, and as warehousing finished products, delivery, finished product structure is as shown in Figure 24.
Embodiment 12
The embodiment includes aluminum piston main part 1 and combustion chamber strengthening part 2, the combustion chamber enhancing combined with Figure 1 and Figure 2,
Part 2 is fixedly connected on the top of aluminum piston main part 1.The aluminum piston main part 1 and the combustion chamber strengthening part 2
Faying face be inclined-plane；The faying face of the aluminum piston main part 1 is inclined-plane, the combination of the combustion chamber strengthening part 2
Face is the inclined-plane with multiple tracks annulus protrusion or spiral salient either screw thread；The combustion chamber strengthening part 2 passes through friction
Weldering is connected to the top of aluminum piston main part 1；The aluminum piston main part 1 includes piston ring carrier 3 or inner cooling path 4, or
Contain piston ring carrier 3 and inner cooling path 4 simultaneously.
The embodiment of the structure obtains by the following method, comprising the following steps:
(1) piston main body part blank is manufactured with casting method, contains cast iron ring carrier and inner cooling path, casting for piston mistake in structure
Cheng Zhong is quenched mode using casting, i.e., in water of quenching immediately after blank takes out mold, is carried out at solid solution using afterheat in casting for piston
Reason, it is energy saving while guaranteeing performance；Using ductile cast iron casting as combustion chamber strengthening part blank；
(2) timeliness is carried out to piston main body part blank, aging temp is 215 ± 20 DEG C, keeps the temperature 3-7 hours；
(3) roughing is carried out to piston combustion bowl strengthening part blank, spheroidal graphite cast-iron casts combustion chamber strengthening part roughing structure
Form is shown in Figure 16；
(4) roughing is carried out to piston main body part blank, structure is shown in Fig. 5, and process guarantees that welding position is oil-free, anhydrous；
(5) piston main body part is combined as a whole with combustion chamber strengthening part by friction welding (FW) mode, rear to carry out destressing at once
Processing；
(6) seam allowance, the disengaging oilhole, pin hole, annular groove, outer circle, combustion chamber of piston are processed respectively；
(7) inner cooling path, insert, eddy current inspection are carried out respectively；
(8) piston carries out phosphatization or phosphatization adds printing graphite treatment；
(9) piston is after final physical and chemical, size detection qualification, and as warehousing finished products, delivery, finished product structure is as shown in Figure 17.
Embodiment 13
The embodiment includes aluminum piston main part 1 and combustion chamber strengthening part 2, the combustion chamber enhancing combined with Figure 1 and Figure 2,
Part 2 is fixedly connected on the top of aluminum piston main part 1.The aluminum piston main part 1 and the combustion chamber strengthening part 2
Faying face be inclined-plane；The faying face of the aluminum piston main part 1 is inclined-plane, the combination of the combustion chamber strengthening part 2
Face is the inclined-plane with multiple tracks annulus protrusion or spiral salient either screw thread；The combustion chamber strengthening part 2 passes through friction
Weldering is connected to the top of aluminum piston main part 1；The aluminum piston main part 1 includes piston ring carrier 3 or inner cooling path 4, or
Contain piston ring carrier 3 and inner cooling path 4 simultaneously.
The embodiment of the structure obtains by the following method, comprising the following steps:
(1) piston main body part blank is manufactured with casting method, contains cast iron ring carrier and inner cooling path, casting process in structure
In, it is quenched mode using casting, i.e., during casting for piston, blank is taken out in water of being quenched after mold immediately, more than casting for piston
Heat carries out solution treatment, energy saving while guaranteeing performance.High temperature molten aluminum is set to infiltrate into aluminum borate crystal whisker using high pressure effect
In palpus prefabricated component, to form composite material, combustion chamber strengthening part blank is manufactured with this；
(2) respectively to piston main body part blank, combustion chamber strengthening part blank carry out ageing treatment, aging temp be 230 ±
20 DEG C, keep the temperature 3-7 hours；
(3) roughing is carried out to piston combustion bowl strengthening part blank.Oil-free, anhydrous, composite material aluminium conjunction is finally processed together
Golden combustion chamber strengthening part roughing structure is shown in Fig. 6；
(4) roughing is carried out to piston main body part blank, structure is shown in Fig. 5, finally processes together oil-free, anhydrous；
(5) piston main body part is combined as a whole with combustion chamber strengthening part by friction welding (FW) mode, rear to carry out destressing at once
Processing；
(6) seam allowance, the disengaging oilhole, pin hole, annular groove, outer circle, combustion chamber of piston are processed respectively；
(7) inner cooling path, insert, eddy current inspection are carried out respectively；
(8) piston carries out phosphatization or phosphatization adds printing graphite treatment；
(9) piston is after final physical and chemical, size detection qualification, and as warehousing finished products, delivery, finished product structure is shown in Fig. 7.
Two body welding type pistons be applicant carry out extensive work as a result, the piston structure form and being applied on piston
Molding mode still belong to pioneering in piston field.Two body welding type piston structures and its manufacturing method are to prove and trying repeatedly
On the basis of testing, its feasibility is fully confirmed, also goes through the feasibility study of expert, is the primary weight in piston field
Quantum jump.Combustion chamber strengthening part is aluminum borate crystal whisker whisker composite material, powder metallurgy, injection molding or copper alloy structure piston,
Detonation pressure ability is born in piston finished product combustion chamber can reach 23MPa, and combustion chamber strengthening part is steel, titanium alloy or cast iron materials, live
Detonation pressure ability is born in plug finished product combustion chamber can reach 25MPa, can achieve the effect of whole forged steel, but cost, machining are difficult
Degree compares whole forging steel piston but decrease to some degree.This has adapted to current and a period of time from now on, advocates energy conservation energetically
The requirement of emission reduction will be discharged in six or more states and be played a great role on engine research, development and production.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover within the scope of the claims and the description of the invention.
Claims (15)
1. a kind of two body welding type piston structures, it is characterised in that: including aluminum piston main part and combustion chamber strengthening part, institute
State the top that combustion chamber strengthening part is fixedly connected on aluminum piston main part.
2. two bodies welding type piston structure according to claim 1, it is characterised in that: the aluminum piston main part and institute
The faying face for stating combustion chamber strengthening part is inclined-plane.
3. two bodies welding type piston structure according to claim 2, it is characterised in that: the knot of the aluminum piston main part
Conjunction face is inclined-plane, and the faying face of the combustion chamber strengthening part is with multiple tracks annulus protrusion or spiral salient either screw thread
Inclined-plane.
4. two bodies welding type piston structure according to claim 2 or 3, it is characterised in that: the combustion chamber strengthening part
The top of aluminum piston main part is connected to by friction welding (FW).
5. two bodies welding type piston structure according to claim 1-4, it is characterised in that: the aluminum piston main body
Part includes piston ring carrier and inner cooling path.
6. a kind of manufacturing method of two bodies welding type piston structure as described in claim 1, it is characterised in that: including following step
It is rapid:
(1) aluminum piston main part blank and combustion chamber strengthening part blank are manufactured respectively；
(2) ageing treatment is carried out to aluminum piston main part blank；
(3) roughing is carried out to aluminum piston main part blank and combustion chamber strengthening part blank respectively；
(4) aluminum piston main part and combustion chamber strengthening part are combined as a whole using friction welding (FW) mode, form piston, postwelding
Carry out stress processing；
(5) seam allowance, disengaging oilhole, pin hole, annular groove, outer circle and the combustion chamber of piston are processed respectively；
(6) it detects a flaw respectively to the inner cooling path of piston, insert and vortex；
(7) phosphatization is carried out to piston or phosphatization adds printing graphite treatment；
(8) after carrying out final physical and chemical, size detection qualification to piston, storage.
7. the manufacturing method of two bodies welding type piston structure according to claim 6, it is characterised in that: in step (1), combustion
Room strengthening part blank is burnt to be made of aluminium borate whisker aluminum matrix composite, and to the aluminium borate whisker aluminum matrix composite into
Row ageing treatment, aging temp are 210-250 DEG C, keep the temperature 3-7h.
8. the manufacturing method of two bodies welding type piston structure according to claim 6, it is characterised in that: in step (1), combustion
It burns room strengthening part to be made of aluminum alloy materials, and ageing treatment, aging temp 200-240 is carried out to aluminum alloy materials
DEG C, keep the temperature 3-7h.
9. according to the manufacturing method for the two body welding type piston structures that claim 6 is stated, it is characterised in that: in step (1), burning
Room strengthening part blank is made of steel material.
10. according to the manufacturing method for the two body welding type piston structures that claim 6 is stated, it is characterised in that: in step (1), combustion
Room strengthening part blank is burnt to be made of titanium alloy material.
11. according to the manufacturing method for the two body welding type piston structures that claim 6 is stated, it is characterised in that: in step (1), combustion
Room strengthening part blank is burnt to be made of cast iron materials.
12. according to the manufacturing method for the two body welding type piston structures that claim 6 is stated, it is characterised in that: in step (1), combustion
Room strengthening part blank is burnt to be made of Cu alloy material.
13. according to the manufacturing method of the described in any item two bodies welding type piston structures of claim 7-12, it is characterised in that: step
Suddenly in (1), aluminum piston main part blank, which uses, casts mode casting and forming of quenching.
14. the manufacturing method of two bodies welding type piston structure according to claim 13, it is characterised in that: the aluminium after casting
Contain cast iron ring carrier in piston main body structure, or contain inner cooling path, or contains cast iron ring carrier and inner cooling path simultaneously.
15. according to the manufacturing method of the described in any item two bodies welding type piston structures of claim 7-12, it is characterised in that: step
Suddenly in (2), aging temp is 195-250 DEG C, keeps the temperature 3-7 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910350377.2A CN110067669A (en) | 2019-04-28 | 2019-04-28 | Two body welding type piston structures of one kind and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910350377.2A CN110067669A (en) | 2019-04-28 | 2019-04-28 | Two body welding type piston structures of one kind and its manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110067669A true CN110067669A (en) | 2019-07-30 |
Family
ID=67369306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910350377.2A Pending CN110067669A (en) | 2019-04-28 | 2019-04-28 | Two body welding type piston structures of one kind and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110067669A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648104A (en) * | 2020-12-07 | 2021-04-13 | 中国兵器科学研究院宁波分院 | Whisker reinforced aluminum alloy piston and preparation method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0178747A1 (en) * | 1984-05-30 | 1986-04-23 | Ae Plc | The manufacture of pistons |
| DE19915782A1 (en) * | 1999-04-08 | 2000-11-02 | Ks Kolbenschmidt Gmbh | Piston for an IC motor with fuel injection has a recessed zone at the piston head with an aluminum component to reinforce the recessed zone edge formed by powder metallurgy and welded to the piston blank |
| DE10042207A1 (en) * | 2000-08-28 | 2002-03-28 | Federal Mogul Nuernberg Gmbh | Cast aluminum engine piston for demanding applications has conical insert of heat resistant alloy welded between base and gudgeon pin bores |
| CN2738939Y (en) * | 2004-05-08 | 2005-11-09 | 赵云良 | Diamond/hard alloy composite sheet |
| CN101177778A (en) * | 2006-11-07 | 2008-05-14 | 北京有色金属研究总院 | Connection method for metal target material and target holder |
| CN201613676U (en) * | 2010-02-05 | 2010-10-27 | 陈鼎诚 | High elastic metal composite structure |
| CN102678379A (en) * | 2012-05-25 | 2012-09-19 | 北京理工大学 | Combined piston for highly-intensified reciprocating internal combustion engine |
| CN202763302U (en) * | 2012-09-12 | 2013-03-06 | 河南富耐克超硬材料股份有限公司 | Brazed composite blade |
| CN104533653A (en) * | 2014-11-03 | 2015-04-22 | 马勒技术投资(中国）有限公司 | Piston capable of improving welding reliability of throat of combustion chamber and production method of piston |
| CN205044158U (en) * | 2015-08-05 | 2016-02-24 | 济南辰禾机器有限公司 | Welding plate for welding plastic door and window |
-
2019
- 2019-04-28 CN CN201910350377.2A patent/CN110067669A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0178747A1 (en) * | 1984-05-30 | 1986-04-23 | Ae Plc | The manufacture of pistons |
| DE19915782A1 (en) * | 1999-04-08 | 2000-11-02 | Ks Kolbenschmidt Gmbh | Piston for an IC motor with fuel injection has a recessed zone at the piston head with an aluminum component to reinforce the recessed zone edge formed by powder metallurgy and welded to the piston blank |
| DE10042207A1 (en) * | 2000-08-28 | 2002-03-28 | Federal Mogul Nuernberg Gmbh | Cast aluminum engine piston for demanding applications has conical insert of heat resistant alloy welded between base and gudgeon pin bores |
| CN2738939Y (en) * | 2004-05-08 | 2005-11-09 | 赵云良 | Diamond/hard alloy composite sheet |
| CN101177778A (en) * | 2006-11-07 | 2008-05-14 | 北京有色金属研究总院 | Connection method for metal target material and target holder |
| CN201613676U (en) * | 2010-02-05 | 2010-10-27 | 陈鼎诚 | High elastic metal composite structure |
| CN102678379A (en) * | 2012-05-25 | 2012-09-19 | 北京理工大学 | Combined piston for highly-intensified reciprocating internal combustion engine |
| CN202763302U (en) * | 2012-09-12 | 2013-03-06 | 河南富耐克超硬材料股份有限公司 | Brazed composite blade |
| CN104533653A (en) * | 2014-11-03 | 2015-04-22 | 马勒技术投资(中国）有限公司 | Piston capable of improving welding reliability of throat of combustion chamber and production method of piston |
| CN205044158U (en) * | 2015-08-05 | 2016-02-24 | 济南辰禾机器有限公司 | Welding plate for welding plastic door and window |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648104A (en) * | 2020-12-07 | 2021-04-13 | 中国兵器科学研究院宁波分院 | Whisker reinforced aluminum alloy piston and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2744923B1 (en) | Cylinder liner and cast iron alloy | |
| CN108331677B (en) | Welded integral forging steel piston and manufacturing process thereof | |
| CN103009018B (en) | A kind of Ultra-fine Grained, high-strength alloy blade forging manufacture method | |
| CN101265854A (en) | Laser welding forged steel integral piston with closed inner-cooling oil recess and its fabrication process | |
| CN108193142B (en) | A kind of high hardness alloy air valve and preparation method thereof | |
| CN106541139A (en) | A kind of preparation method of P/M cam | |
| CN104074622B (en) | Piston with integrated steel crown and iron skirt and production method thereof | |
| US20150345421A1 (en) | Combustion-chamber bowl rim and of a combustion chamber bowl base of a piston of an internal combustion engine | |
| CN102979641B (en) | Integrated type cast steel piston and manufacturing method thereof | |
| CN105729079A (en) | Machining method for piston forging mould | |
| CN110067669A (en) | Two body welding type piston structures of one kind and its manufacturing method | |
| CN102407431A (en) | Manufacturing process of hot-spinning pressed forged steel integral piston with internal cooling oil cavity | |
| CN208089422U (en) | A kind of welded type entirety forging steel piston | |
| CN102287441A (en) | Motorcycle engine connecting rod and manufacturing process thereof | |
| US20130167799A1 (en) | Process for manufacturing a formed metallic work piece with armoring | |
| CN209293923U (en) | A kind of open whole friction welding (FW) forging steel pistons | |
| CN106994496B (en) | A kind of forging method of steel bimetallic cracking connecting-rod | |
| JPS63132743A (en) | Manufacture of piston | |
| CN213655000U (en) | Steel piston with enhanced cooling | |
| US10363599B2 (en) | Hot forming of cooling galleries in steel pistons | |
| CN1350070A (en) | High-stress low-carbon martensitic spring steel 35Si2CrVB and its production process | |
| Wang et al. | Solutions to Common Problems of Forged Steel Piston | |
| CN109609737A (en) | A method of eliminating vermicular cast iron glass mold stress | |
| CN110343817A (en) | A kind of automobile die steel processing technology | |
| CN109382637A (en) | A kind of all-steel piston manufacturing method comprising built-in cooling oil duct |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190730 |
|
| RJ01 | Rejection of invention patent application after publication |