CN107299295A - The moulding process of the oily rail of super-pressure stainless steel forging and stamping - Google Patents
The moulding process of the oily rail of super-pressure stainless steel forging and stamping Download PDFInfo
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- CN107299295A CN107299295A CN201710428439.8A CN201710428439A CN107299295A CN 107299295 A CN107299295 A CN 107299295A CN 201710428439 A CN201710428439 A CN 201710428439A CN 107299295 A CN107299295 A CN 107299295A
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- forging
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- oily rail
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- 238000005242 forging Methods 0.000 title claims abstract description 46
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 33
- 239000010935 stainless steel Substances 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000000465 moulding Methods 0.000 title claims abstract description 12
- 238000010791 quenching Methods 0.000 claims abstract description 11
- 230000000903 blocking effect Effects 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 239000002253 acid Substances 0.000 claims abstract description 4
- 238000002161 passivation Methods 0.000 claims abstract description 4
- 238000009966 trimming Methods 0.000 claims abstract description 4
- 239000011265 semifinished product Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 11
- 239000000047 product Substances 0.000 claims description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 230000000171 quenching effect Effects 0.000 claims description 6
- 229910052804 chromium Inorganic materials 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 238000005422 blasting Methods 0.000 claims description 3
- 238000007654 immersion Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000005476 soldering Methods 0.000 abstract description 5
- 238000003466 welding Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 7
- 239000011651 chromium Substances 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 5
- 238000005219 brazing Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007542 hardness measurement Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000001235 sensitizing effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/06—Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/002—Hybrid process, e.g. forging following casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K29/00—Arrangements for heating or cooling during processing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
- Forging (AREA)
Abstract
The invention discloses a kind of moulding process of the oily rail of super-pressure stainless steel forging and stamping, it comprises the following steps：1) blanking；2) heating in medium frequency；3) blocking；4) finish forge；5) trimming；6) quench；7) ball blast；8) acid wash passivation.Pass through the oily rail of super-pressure stainless steel forging and stamping obtained by the present invention, the relatively existing oily rail product of soldering class stainless steel, the technical process such as welding can creatively be saved, and then effectively evade the oily rail product of existing soldering class stainless steel in its welding place disclosure risk that may be present, so as to ensure reliability of the product under super-high pressure work environment, while optimizing production cost.
Description
Technical field
The present invention relates to the shaping of the moulding process of auto parts and components, more particularly to a kind of oily rail of super-pressure stainless steel forging and stamping
Technique.
Background technology
The mainstream car design of existing turbocharging in-cylinder direct-jet function generally uses 250bar operating pressure, i.e., gasoline
Be pressurized to 250bar liquid gaseous state, and spray into combustor inner cylinder at a high speed, with this supporting fuel dispensing tube it is currently employed be not
Become rusty Steel material, and the machined parts such as main oily rail and oil injector seat are fixed into an entirety using copper brazing.Such technique
Shortcoming to be that the copper brazings of different parts is in the iterative cycles pulse under work at present pressure easily produce failure, and lead
Cause cracking oil leak.In order to reach the requirement of more energy-conserving and environment-protective, country will release the stricter discharge standard of state six, in order to
This standard is adapted to, big main flow car enterprise starts to develop bigger (hereinafter referred to as super-pressure) the fuel direct injection system of operating pressure of future generation
System, operating pressure rises to 350bar, and the oily rail produced using current process means bigger wind for this operating pressure
Danger, therefore, it is necessary to research and develop a kind of oily rail of integral type stainless steel forging and stamping for adapting to super-high pressure work environment.
The content of the invention
It is an object of the invention to forge and press oily rail there is provided a kind of super-pressure stainless steel for above-mentioned deficiency of the prior art
Moulding process, weld place disclosure risk that may be present in it effectively to evade the oily rail product of existing soldering class stainless steel,
So as to ensure reliability of the product under super-high pressure work environment.
In order to solve the above technical problems, the present invention is adopted the following technical scheme that：
A kind of moulding process of the oily rail of super-pressure stainless steel forging and stamping, it comprises the following steps：
1) blanking, using the low carbon stainless steels of DIN 1.4301 as forging and stamping raw material, its chemical composition mass percent is：
C：≤ 0.07%, Si：≤ 0.7%, Mn：1-2%, Cr：15-19%, P：≤ 0.05%, Ni：7.9-10.6%；S:0.018%；
Simulated by Forge softwares CAE, determine the length L=320mm of original bar, diameter D=34mm, and former material material will be forged and pressed
Cut with this standard；
2) heating in medium frequency, is put into intermediate frequency reacting furnace by above-mentioned original bar, is heated original bar using intermediate frequency reacting furnace
To 1150-1250 degrees Celsius；
3) blocking, carries out blocking, forge pressure is using 2500T hot die forging presses to the bar of above-mentioned process heating in medium frequency
1160T-1200T, initial forging temperature is controlled in 1200-1250 degree Celsius ranges；
4) finish forge, finish-forging is carried out to the bar by blocking, and final forging temperature is 850-1000 degrees Celsius；
5) trimming, will be placed on the stamping machine equipped with edger by the bar of finish-forging, removes the overlap produced after forging and stamping,
It is required that flash thickness is no more than 2.5mm, the semi-finished product of the oily rail of super-pressure stainless steel forging and stamping are thus obtained.
6) quench, above-mentioned semi-finished product are quenched；
7) ball blast, is strengthened using shot-blasting machine to the surface of the semi-finished product after quenching；
8) semi-finished product after ball blast are carried out immersion treatment, temperature by acid wash passivation using 10% hydrochloric acid neutralizer：60-80
Degree Celsius, the time：15-20 minutes, to remove the oxide layer of surface of semi-finished, finally give the oily rail of super-pressure stainless steel forging and stamping
Finished product.
Further, step 2) in, original bar is heated to 1250 degrees Celsius using intermediate frequency reacting furnace.
Further, step 6) in, above-mentioned semi-finished product are quenched with air-cooled mode.
The oily rail production of the relatively existing soldering class stainless steel of moulding process of the oily rail of super-pressure stainless steel forging and stamping proposed by the present invention
Product, can creatively save the technical process such as welding, and then effectively evade the oily rail product of existing soldering class stainless steel and be welded in it
Place disclosure risk that may be present is connect, so as to ensure reliability of the product under super-high pressure work environment, while optimizing life
Produce cost.
Embodiment
With reference to describing the preferred embodiments of the present invention in detail in form.
The invention discloses a kind of moulding process of the oily rail of super-pressure stainless steel forging and stamping, it comprises the following steps：
1) blanking, forging and stamping raw material, its chemical composition quality are used as using (SUS 304) low carbon stainless steels of DIN 1.4301
Percentage is：C：≤ 0.07%, Si：≤ 0.7%, Mn：1-2%, Cr：15-19%, P：≤ 0.05%, Ni：7.9-10.6%；
S:0.018%；Ni (nickel), Cr (chromium) is important austenitic stainless steel addition element, can effectively improve the through hardening of stainless steel
Property and corrosion resistance, so ratio is must assure that, and S (sulphur) and P (phosphorus) they are harmful nonmetal inclusion elements, easily make steel
Fragility is produced, and reduces the corrosion resistance of stainless steel；Simulated by Forge softwares CAE, determine the length L=of original bar
320mm, diameter D=34mm, and by forging and stamping former material material cut with this standard, determine original bar optimum length and directly
Footpath can improve stock utilization to greatest extent；
2) heating in medium frequency, is put into intermediate frequency reacting furnace by above-mentioned original bar, is heated original bar using intermediate frequency reacting furnace
To 1150-1250 degrees Celsius, the bar heated before this temperature range is reached is all automatically fed into ash can；
3) blocking, carries out blocking, forge pressure is using 2500T hot die forging presses to the bar of above-mentioned process heating in medium frequency
1160T-1200T, initial forging temperature is controlled in 1200-1250 degree Celsius ranges；
4) finish forge, finish-forging is carried out to the bar by blocking, and final forging temperature is 850-1000 degrees Celsius；
5) trimming, will be placed on the stamping machine equipped with edger by the bar of finish-forging, removes the overlap produced after forging and stamping,
It is required that flash thickness is no more than 2.5mm, the semi-finished product of the oily rail of super-pressure stainless steel forging and stamping are thus obtained.
6) quench, above-mentioned semi-finished product are quenched；
7) ball blast, is strengthened using shot-blasting machine to the surface of the semi-finished product after quenching；
8) semi-finished product after ball blast are carried out immersion treatment, temperature by acid wash passivation using 10% hydrochloric acid neutralizer：60-80
Degree Celsius, the time：15-20 minutes, to remove the oxide layer of surface of semi-finished, finally give the oily rail of super-pressure stainless steel forging and stamping
Finished product.
As shown in table 1, step 2) in, will using intermediate frequency reacting furnace by test comparison in order to reach optimal core hardness
Original bar is heated to 1250 degrees Celsius.
Table 1
Oily rail after finish-forging is used into water cooling, three kinds of types of cooling of air-cooled and quenching liquid (AQUA-QUENCH 3699C) respectively
Quenched, with measure assess different quenching modes for the hardness distribution of material, metallographic structure change, grain size number and
The influence that material extends.In table 2, the technical requirements of material hardness testing result (average hardness) are 139-192HB.Table 3 is Austria
The testing result (referring to technical requirements >=4 grade) of family name's body grain size.
Table 2
Table 3
In order to adapt to mach optimal material core hardness and grain size number, with reference to each group of data in table 2 and table 3
Contrast, step 6) it is middle from the air-cooled means as fast cooling.
Determine in this programme the purpose of each technological parameter and its role is to：
1) the equally distributed austenite stainless steel construction of metallographic structure is obtained, grain size number reaches more than 6 grades, in favor of
Follow-up deep hole rig process；
2) before hardness, yield strength, the tensile strength that the super-pressure stainless steel forges and presses oily rail meet the requirements of the customers
Put, its core hardness is reduced as far as possible, in favor of machining；
3) control quenching before temperature more than 850 degrees Celsius, can avoid stainless steel organization internal in temperature-fall period by
The sensitizing effect and resulting intercrystalline corrosion brought in carbon and chromium generation chemical reaction may.
By table 4 we it can be found that super-pressure stainless steel forging and stamping oily rail (hereinafter referred to as " forging and stamping obtained by the present invention
Oily rail ") compared with the oily rail of existing casting, embody higher mechanical strength.
Table 4
As shown in table 5, the nitric acid using 65% as tested media does corrosion experiment to the oily rail of forging and stamping, as a result shows, forges
The average corrosion rate for pressing oil rail is 0.24g/m2* h, meets GB national standards<0.66g/m2* h requirement, that is, the oily rail of the forging and stamping
Resistance to corrosion exceed Standard.
Table 5
" forging and stamping oily rail " of the present invention possess strong more than tension required by under 350bar super-high pressure work environment
The mechanical performances such as degree, yield strength, are provided simultaneously with tackling the corrosion resistance under high temperature and high pressure environment, and deep hole machining must
The austenitic structure needed；Its molding process has also evaded the leakage wind of the issuable different inter-modules of the oily rail of conventional brazing
Danger.
The above description of this invention and application be illustrative, be not wishing to limit the scope of the invention to above-mentioned implementation
In example；In the case where not departing from scope and spirit of the present invention, can to embodiments disclosed herein carry out it is other deformation and
Change.
Claims (3)
1. a kind of moulding process of the oily rail of super-pressure stainless steel forging and stamping, it is characterised in that comprise the following steps：
1) blanking, using the low carbon stainless steels of DIN 1.4301 as forging and stamping raw material, its chemical composition mass percent is：C：≤
0.07%, Si：≤ 0.7%, Mn：1-2%, Cr：15-19%, P：≤ 0.05%, Ni：7.9-10.6%；S:0.018%；Pass through
Forge softwares CAE is simulated, and determines the length L=320mm of original bar, diameter D=34mm, and will forge and press former material material with this
Standard is cut；
2) heating in medium frequency, is put into intermediate frequency reacting furnace by above-mentioned original bar, is heated to original bar using intermediate frequency reacting furnace
1150-1250 degrees Celsius；
3) blocking, carries out blocking, forge pressure is using 2500T hot die forging presses to the bar of above-mentioned process heating in medium frequency
1160T-1200T, initial forging temperature is controlled in 1200-1250 degree Celsius ranges；
4) finish forge, finish-forging is carried out to the bar by blocking, and final forging temperature is 850-1000 degrees Celsius；
5) trimming, will be placed on the stamping machine equipped with edger by the bar of finish-forging, removes the overlap produced after forging and stamping, it is desirable to
Flash thickness is no more than 2.5mm, thus obtains the semi-finished product of the oily rail of super-pressure stainless steel forging and stamping.
6) quench, above-mentioned semi-finished product are quenched；
7) ball blast, is strengthened using shot-blasting machine to the surface of the semi-finished product after quenching；
8) semi-finished product after ball blast are carried out immersion treatment, temperature by acid wash passivation using 10% hydrochloric acid neutralizer：60-80 is Celsius
Degree, time：15-20 minutes, to remove the oxide layer of surface of semi-finished, finally give the oily rail of super-pressure stainless steel forging and stamping into
Product.
2. the moulding process of the oily rail of super-pressure stainless steel forging and stamping according to claim 1, it is characterised in that：Step 2) in,
Original bar is heated to 1250 degrees Celsius using intermediate frequency reacting furnace.
3. the moulding process of the oily rail of super-pressure stainless steel forging and stamping according to claim 1, it is characterised in that：Step 6) in,
Above-mentioned semi-finished product are quenched with air-cooled mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710428439.8A CN107299295B (en) | 2017-06-08 | 2017-06-08 | The moulding process of the oily rail of super-pressure stainless steel forging and stamping |
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| CN201710428439.8A CN107299295B (en) | 2017-06-08 | 2017-06-08 | The moulding process of the oily rail of super-pressure stainless steel forging and stamping |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108149157A (en) * | 2017-12-29 | 2018-06-12 | 芜湖三联锻造有限公司 | A kind of stainless steel bars and its forging method |
| CN108203790A (en) * | 2017-12-29 | 2018-06-26 | 芜湖三联锻造有限公司 | A kind of integral high pressure common rail stainless steel and its forging method |
| CN108406315A (en) * | 2018-04-27 | 2018-08-17 | 上海众源燃油分配器制造有限公司 | A kind of gasoline high pressure oil rail forging system and technique |
| CN109280759A (en) * | 2018-11-20 | 2019-01-29 | 江苏龙城精锻有限公司 | A kind of manufacturing method of integral fine crystal austenitic stainless steel hot forging |
| CN112877611A (en) * | 2019-11-29 | 2021-06-01 | 宝武特种冶金有限公司 | Austenitic stainless steel, fine-grain large-size bar and preparation method and application thereof |
| CN113231585A (en) * | 2021-04-29 | 2021-08-10 | 上海众源燃油分配器制造有限公司 | 500bar high-pressure oil rail forging process for stainless steel gasoline |
| CN115141920A (en) * | 2022-07-06 | 2022-10-04 | 大冶特殊钢有限公司 | Induction heating heat treatment method of austenitic stainless steel bar |
| CN116274821A (en) * | 2023-04-19 | 2023-06-23 | 山东泰和能源股份有限公司 | Die forging machining method for large stainless steel workpiece |
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| CN105414444A (en) * | 2016-01-18 | 2016-03-23 | 湖北万鑫精密铸锻股份有限公司 | Forging process for integrated automobile traction support |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108149157A (en) * | 2017-12-29 | 2018-06-12 | 芜湖三联锻造有限公司 | A kind of stainless steel bars and its forging method |
| CN108203790A (en) * | 2017-12-29 | 2018-06-26 | 芜湖三联锻造有限公司 | A kind of integral high pressure common rail stainless steel and its forging method |
| CN108406315A (en) * | 2018-04-27 | 2018-08-17 | 上海众源燃油分配器制造有限公司 | A kind of gasoline high pressure oil rail forging system and technique |
| CN109280759A (en) * | 2018-11-20 | 2019-01-29 | 江苏龙城精锻有限公司 | A kind of manufacturing method of integral fine crystal austenitic stainless steel hot forging |
| CN112877611A (en) * | 2019-11-29 | 2021-06-01 | 宝武特种冶金有限公司 | Austenitic stainless steel, fine-grain large-size bar and preparation method and application thereof |
| CN113231585A (en) * | 2021-04-29 | 2021-08-10 | 上海众源燃油分配器制造有限公司 | 500bar high-pressure oil rail forging process for stainless steel gasoline |
| CN115141920A (en) * | 2022-07-06 | 2022-10-04 | 大冶特殊钢有限公司 | Induction heating heat treatment method of austenitic stainless steel bar |
| CN116274821A (en) * | 2023-04-19 | 2023-06-23 | 山东泰和能源股份有限公司 | Die forging machining method for large stainless steel workpiece |
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