CN106906400A - A kind of middle carbon chromium nickel molybdenum WC50 steel bonded carbide Roll Collar and its manufacture method - Google Patents
A kind of middle carbon chromium nickel molybdenum WC50 steel bonded carbide Roll Collar and its manufacture method Download PDFInfo
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- CN106906400A CN106906400A CN201710126374.1A CN201710126374A CN106906400A CN 106906400 A CN106906400 A CN 106906400A CN 201710126374 A CN201710126374 A CN 201710126374A CN 106906400 A CN106906400 A CN 106906400A
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- bonded carbide
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 81
- 239000010959 steel Substances 0.000 title claims abstract description 81
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- HWSFXRVYHOGTFX-UHFFFAOYSA-N [C].[Mo].[Ni].[Cr] Chemical compound [C].[Mo].[Ni].[Cr] HWSFXRVYHOGTFX-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 238000012545 processing Methods 0.000 claims abstract description 10
- 238000000227 grinding Methods 0.000 claims abstract description 9
- 239000000126 substance Substances 0.000 claims abstract description 8
- 238000007689 inspection Methods 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 24
- 229910045601 alloy Inorganic materials 0.000 claims description 15
- 239000000956 alloy Substances 0.000 claims description 15
- 238000005242 forging Methods 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 8
- 238000005496 tempering Methods 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 4
- 238000010791 quenching Methods 0.000 claims description 4
- 230000000171 quenching effect Effects 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 abstract description 20
- 230000008901 benefit Effects 0.000 abstract description 10
- 230000035939 shock Effects 0.000 abstract description 4
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 238000000137 annealing Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 13
- 238000005299 abrasion Methods 0.000 description 6
- 229910001018 Cast iron Inorganic materials 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- 229910000734 martensite Inorganic materials 0.000 description 4
- 229910001315 Tool steel Inorganic materials 0.000 description 3
- 229910001566 austenite Inorganic materials 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 229910000997 High-speed steel Inorganic materials 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 241001481828 Glyptocephalus cynoglossus Species 0.000 description 1
- 208000025599 Heat Stress disease Diseases 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- FXNGWBDIVIGISM-UHFFFAOYSA-N methylidynechromium Chemical compound [Cr]#[C] FXNGWBDIVIGISM-UHFFFAOYSA-N 0.000 description 1
- DDTIGTPWGISMKL-UHFFFAOYSA-N molybdenum nickel Chemical compound [Ni].[Mo] DDTIGTPWGISMKL-UHFFFAOYSA-N 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910000658 steel phase Inorganic materials 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/08—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/14—Guiding, positioning or aligning work
- B21B39/16—Guiding, positioning or aligning work immediately before entering or after leaving the pass
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/067—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds comprising a particular metallic binder
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The invention discloses a kind of middle carbon chromium nickel molybdenum WC50 steel bonded carbide Roll Collar and its manufacture method, it is C0.5~0.6% to use chemical composition mass percent, Cr0.5~0.6%, Ni0.5~0.6%, Mn0.6~0.7%, Si0.4~0.6%, the middle carbon chromium nickel molybdenum WC50 steel bonded carbide of WC50%, balance of Fe.Then the mechanical processing and heat treatment grinding final Roll Collar of inspection of annealing is forged.Steel bonded carbide Roll Collar prepared by the present invention has hardness high, wear-resistant, the excellent physical and mechanical properties such as resistance to high temperature oxidation, heat shock resistance improves the service life and Rolling production efficiency and product quality of deflector roll, and low production cost, there is high cost performance.With great economic benefit and social benefit.
Description
Technical field
The present invention relates to a kind of steel rolling deflector roll, especially a kind of middle carbon chromium for steel rolling continuous-rolling system rolling guide
Nickel molybdenum WC50 steel bonded carbide Roll Collar and its manufacture method.
Background technology
Guide and guards refers to a kind of important spare part for guiding and escorting rolled piece to pass in and out milling train during Rolling production, is used
In guiding rolled piece to pass in and out pass by required state during section rolling, to ensure that rolled piece realizes set deformation.Lead
Whether the design and use for defending device are proper, directly influence the quality of product and the production capacity of milling train.
Rolling guide be steel rolling mill when section bar, bar or wire rod rolling is carried out, rolled piece is led into milling train
A kind of guider in roll pass.The steel rolling that Roll Collar is mainly guiding, auxiliary rolling blank or finished product run through is used
Guide device device, deflector roll is mostly important consumable accessory in rolling guide, is steel plant bar and wire rod rolling line
On a very crucial part, domestic Year's consumption more than 1,000,000, international market Year's consumption 800~10,000,000
More than part, as the main consumable part on high-speed rod-rolling mill, consumption is very big.
In the wire rod operation of rolling, steel billet is filled with temperature (900~1250 DEG C) and speed higher higher by guide and guard
Put.With the development of steel rolling technology, the speed of steel rolling is more and more faster, and the finish to gauge speed of current bar and general section bar is
18m/s or so, the finish to gauge speed of wire rod has reached 80m/s~140m/s or so, and the rotating speed of high-speed rod finish to gauge sortie deflector roll is big
It is about per minute 30000~45000 turns.It is cooling roll and guide and guards, it is necessary to ceaselessly spray certain pressure to its surface
Cooling water.Due to carrying out Roll Collar Forced water cooling, Roll Collar is acted on by chilling and shock heating alternating thermal stress, is also easy to produce heat tired
Labor.Therefore, Roll Collar at relatively high temperatures, should bear rapid heat cycle impact, and sliding frictional wear and steel billet are born again
The shock loading applied during entrance, condition of work is very severe, when the heat spreader of Roll Collar is not smooth, easily causes Roll Collar
Loss even fail.Because the condition of work of deflector roll is very badly constantly clashed into, it is necessary to bear rolled piece, under high temperature, high speed
Rubbed for a long time with rolled piece, while the impact of alternation thermic load is still suffered from, thus the replacement frequency of roll is very high.Therefore, exist
During manufacture deflector roll, it is desirable to high temperature abrasion resistance higher, high rigidity, high tenacity, thermal fatigue resistance high and anti-stick rigidity high.
In the prior art, Roll Collar is mostly using heat resisting steel, the abrasion-resistant stee and height of martensitic structure of austenite structure
The materials such as chrome cast iron, hard alloy, high-alloy steel make deflector roll.Austenitic heat-resistance steel has good high-temperature stability and tough
Property, but wear no resistance, quick abrasion.And austenite and wire rod (being organized as ferrite or austenite) itself adhere to each other tendency
Property is larger, and steel bonding easily occurs.Martensitic structure abrasion-resistant stee and wear resistant cast iron have good wearability at room temperature, but with making
With the raising of temperature, martensite is tempered, and wearability can be reduced.Although rich chromium cast iron hardness is high, anti-wear performance is good, due to this
Plant steel hardness and wearability relies primarily on the carbide Cr7C3 and Cr23C6 of chromium, heat endurance is poor, typically more than 450 DEG C
Start agglomeration and gradually soften.Hard alloy deflector roll has good wearability and high-temperature stability, but because material is crisp
Property it is big, its impact flexibility is relatively low, is easily broken in the case where the high speed (more than 1000m/ s) for being rolled metal head is impacted, excellent height
Warm wearability is difficult to be played, and machinability is poor, and manufacturing cost is too high, is limited in the use of line deflector roll material high
System.Because metal hardness wearability at high temperature is low, and poor chemical stability under high temperature, therefore used in Roll Collar
High temperature wear failure, steel bonding failure occur in journey, the originals such as failure, heat fatigue and hot tearing mistake, Cracking Failure, steel bonding failure are pulled
Because of failure, the steel rolling accidents such as stifled steel are then caused to occur.Therefore, its cost how is reduced, its performance is improved, will be ground as future
The main contents and important problem studied carefully.
With the development of high-speed rolling, requirement higher is proposed to guide and guard deflector roll material.Influence guide and guards uses the longevity
One of key issue of life is exactly the control of selection and the structural state of deflector roll material, huge deflector roll material consumption, continually
Change the normal development that deflector roll has had a strong impact on steel and iron industry.Therefore, the material to deflector roll is studied not only very necessary,
And have become expansion iron and steel output, improve one of witch's subject matters to be solved such as section quality.Therefore, domestic and international all one
Directly it is devoted to the research and development of new deflector roll material.
Steel bonded carbide（Hereinafter referred to as steel-bonded carbide）It is that, with steel as matrix, tungsten carbide, titanium carbide etc. are hard phase
The high life mould between hard alloy and alloy tool steel, mould steel and high-speed steel produced using powder metallurgy process
Material and engineering material.The ratio range of steel-bonded carbide steel matrix Binder Phase and hard phase quite it is extensive, this just determines that its has
Standby following excellent properties：1）Extensive processing performance, forgeability and machinable performance and can mainly be heat-treated
Property and weldability.2）Good physical and mechanical properties, is mainly manifested in the wearability suitable with high-cobalt hart metal；With steel phase
Compare rigidity high, elastic modelling quantity, bending strength and compression strength；The toughness higher compared with hard alloy；And it is good
Self lubricity and damping characteristic high etc..3）Excellent chemical stability, such as high temperature resistant, anti-oxidant, anti-various dielectric corrosions.
Due to the above-mentioned excellent combination property of steel-bonded carbide so that it is in tool die material, wear part, high temperature resistant and corrosion-resistant structure
The aspects such as part material more and more occupy consequence, and in intermetallic composite coating, hardware electronics, automobile, machinery, metallurgy, chemical industry, ship
It is used widely and obtains good result in the field such as oceangoing ship, Aero-Space and nuclear industry.Such as with alloy tool steel, mould steel and
High-speed steel is compared, and steel-bonded carbide can be such that die life number is increased substantially with ten times of ground, and economic benefit is also extremely notable.
Due to the advantage of the existing hard alloy high elastic modulus of steel bonded carbide, high rigidity and high-wearing feature, there is conjunction again
Golden tool steel machinable and the features such as can be heat-treated, significant Technological Economy effect has been obtained for cold-working tool die material
Really.About steel bonded carbide hot working mould applicable cases foreign countries also have been reported that, for example:The country such as U.S. has used steel knot
Hard alloy makes single groove or double flute roll of hot-rolled ribbed bars, and the Roll Collar as manufacture fast mill;And at me
The report of state's this respect is less.Being applied to manufacture Roll Collar will greatly improve the service life of Roll Collar, and reduction is led
Roller production and use cost are defended, the economic benefit of iron and steel enterprise is improved, while also having great social benefit.
The content of the invention
Good the invention provides a kind of wearability in order to solve defect of the prior art, non-breakable, low cost uses the longevity
Middle carbon chromium nickel molybdenum WC50 steel bonded carbide Roll Collar and its manufacture method long is ordered, is led with strengthening the wearability of deflector roll, extension
The service life of roller, and reduce the manufacturing cost of deflector roll.
The present invention uses following technical scheme to solve technical problem.
Middle carbon chromium nickel molybdenum WC50 steel bonded carbide Roll Collars of the invention, carbon chromium nickel molybdenum WC50 steel knots hard is closed in
Gold manufacture.Processing and manufacturing process includes following steps：
（1）Guide and guard roll material：
Material therefor chemical composition mass percent be C0.5~0.6%, Cr0.5~0.6%, Ni0.5~0.6%, Mn0.6~
0.7%, Si0.4~0.6%, WC50%, balance of Fe；
（2）The manufacture and processing of Roll Collar：
1) the middle carbon chromium nickel molybdenum WC50 steel bonded carbide steel bonded carbide that powder metallurgical technique is manufactured is carried out into forging molding；
2) the middle carbon chromium nickel molybdenum WC50 steel bonded carbide steel bonded carbide of forging molding is carried out into spheroidizing treatment, makes steel
Bond hard alloy hardness ＜ HRA74；
3) steel bonded carbide after spheroidizing is processed is processed according to the size needed for Roll Collar product, by Roll Collar
Certain stock removal is reserved at physical dimension and endoporus dress dress bearing；
4) the steel bonded carbide Roll Collar that will be processed is quenched and tempering heat treatment, makes its hardness ＞ HRA80；
5) grinding to institute will be carried out by quenching and the good steel bonded carbide Roll Collar appearance of tempering heat treatment and endoporus
Need size；
6) by the good steel bonded carbide Roll Collar of grinding carry out quality inspection it is qualified after in its surface and endoporus oiling, so
After pack.
Beneficial effect
Compared with the prior art, the present invention has the beneficial effect that：
1st, middle carbon chromium nickel molybdenum WC50 steel bonded carbide Roll Collars of the invention, overcome austenitic heat-resistance steel and wear no resistance, mill
Damage fast, the tendency that adheres to each other with wire rod wins larger, steel bonding and martensitic structure abrasion-resistant stee easily occurs and wear resistant cast iron is easy to hair
Raw martenaging martempering, wearability can be reduced and rich chromium cast iron heat endurance is poor, it is easy to agglomeration and gradually soften and hard
Alloy deflector roll is big due to material fragility, and its impact flexibility is relatively low, is easily broken under HI high impact, and machinability is poor, manufacture
The too high shortcoming and defect of cost.The advantage of existing hard alloy high elastic modulus, high rigidity and high-wearing feature, there is alloy work again
The advantages of having steel machinable and can be heat-treated, with high temperature resistant, the characteristic of abrasion-resistant, greatly increases the wear-resisting of deflector roll
The performances such as property, high temperature resistant, heat shock resistance, extend the service life of deflector roll, and service life is generally the 5~10 of traditional deflector roll
Times, so as to reduce production cost, improve production efficiency and product quality.Greatly reduce the manufacturing cost of deflector roll.Have
Great economic benefit and social benefit.
2nd, the middle carbon chromium nickel molybdenum WC50 steel bonded carbide Roll Collar prepared by the present invention is not only wear-resisting but also overcomes hard conjunction
The breakable shortcoming of gold, wear-resistant, the excellent physical and mechanical properties such as resistance to high temperature oxidation high with hardness, and manufacture method letter
Just, it is easy to operate, it is with low cost, there is high cost performance.
Brief description of the drawings
Fig. 1 is the sectional view of middle carbon chromium nickel molybdenum WC50 steel bonded carbide Roll Collars of the invention.
Label in accompanying drawing 1：1 bearing mounting hole, 2 deflector roll shaft through-holes, 3 guide and guard roll bodies, 4 bearings install limited step.
Below by way of specific embodiment, and the invention will be further described with reference to accompanying drawing.
Specific embodiment
Referring to Fig. 1, middle carbon chromium nickel molybdenum WC50 steel bonded carbide Roll Collars, by 1 bearing mounting hole, 2 deflector roll shaft through-holes, 3
Guide and guard roll body, 4 bearings are installed limited step and are constituted.
Further illustrated with reference to specific embodiment.Protection scope of the present invention is not only limited to following content
Statement.
Embodiment 1
The processing and manufacturing process of middle carbon chromium nickel molybdenum WC50 steel bonded carbide Roll Collars of the invention generally comprises following step
Suddenly：
（1）Guide and guard roll material：
Material chemical composition mass percent is C0.5%, Cr0.5%, Ni0.5%, Mn0.6%, Si0.4%, WC50%, balance of Fe；
（2）The manufacture and processing of Roll Collar：
1) the middle carbon chromium nickel molybdenum WC50 steel bonded carbide that powder metallurgical technique is manufactured is carried out into forging molding；
2) the middle carbon chromium nickel molybdenum WC50 steel bonded carbide of forging molding is carried out into spheroidizing treatment, makes steel bonded carbide hard
Degree ＜ HRA74；
3) steel bonded carbide after spheroidizing is processed is processed according to the size needed for Roll Collar product, by Roll Collar
Certain stock removal is reserved at physical dimension and endoporus dress dress bearing；
4) the steel bonded carbide Roll Collar that will be processed is quenched and tempering heat treatment, makes its hardness ＞ HRA80；
5) grinding to institute will be carried out by quenching and the good steel bonded carbide Roll Collar appearance of tempering heat treatment and endoporus
Need size；
6) by the good steel bonded carbide Roll Collar of grinding carry out quality inspection it is qualified after in its surface and endoporus oiling, so
After pack.
Instant invention overcomes the deficiency of single material in the prior art, hard alloy wear resistance, common iron are given full play to not
Breakable strong point, the two is combined, and produces steel bonded carbide deflector roll.
It is to be understood that above with respect to specific descriptions of the invention, being merely to illustrate the present invention and being not limited to this
Technical scheme described by inventive embodiments, it will be understood by those within the art that, still the present invention can be carried out
Modification or equivalent, to reach identical technique effect；As long as satisfaction use needs, all protection scope of the present invention it
It is interior.
Embodiment 2
The processing and manufacturing process of middle carbon chromium nickel molybdenum WC50 steel bonded carbide Roll Collars of the invention generally comprises following step
Suddenly：
（1）Guide and guard roll material：
Material chemical composition mass percent is C0.6%, Cr0.6%, Ni0.6%, Mn0.7%, Si0.6%, WC50%, balance of Fe；
（2）The manufacture and processing of Roll Collar：
1) the middle carbon chromium nickel molybdenum WC50 steel bonded carbide that powder metallurgical technique is manufactured is carried out into forging molding；
2) the middle carbon chromium nickel molybdenum WC50 steel bonded carbide of forging molding is carried out into spheroidizing treatment, makes steel bonded carbide hard
Degree ＜ HRA74；
3) steel bonded carbide after spheroidizing is processed is processed according to the size needed for Roll Collar product, by Roll Collar
Certain stock removal is reserved at physical dimension and endoporus dress dress bearing；
4) the steel bonded carbide Roll Collar that will be processed is quenched and tempering heat treatment, makes its hardness ＞ HRA80；
5) grinding to institute will be carried out by quenching and the good steel bonded carbide Roll Collar appearance of tempering heat treatment and endoporus
Need size；
6) by the good steel bonded carbide Roll Collar of grinding carry out quality inspection it is qualified after in its surface and endoporus oiling, so
After pack.
Instant invention overcomes the deficiency of single material in the prior art, hard alloy wear resistance, common iron are given full play to not
Breakable strong point, the two is combined, and produces steel bonded carbide deflector roll.
It is to be understood that above with respect to specific descriptions of the invention, being merely to illustrate the present invention and being not limited to this
Technical scheme described by inventive embodiments, it will be understood by those within the art that, still the present invention can be carried out
Modification or equivalent, to reach identical technique effect；As long as satisfaction use needs, all protection scope of the present invention it
It is interior.
Claims (2)
1. a kind of middle carbon chromium nickel molybdenum WC50 steel bonded carbide Roll Collars, it is characterised in that carbon chromium nickel molybdenum WC50 steel knots in use
Hard alloy is manufactured.
2. the manufacture method of the middle carbon chromium nickel molybdenum WC50 steel bonded carbide Roll Collars according to claim 1, its feature exists
In processing and manufacturing process includes following steps：
（1）Guide and guard roll material：
Material therefor chemical composition mass percent be C0.5~0.6%, Cr0.5~0.6%, Ni0.5~0.6%, Mn0.6~
0.7%, Si0.4~0.6%, WC50%, balance of Fe；
（2）The manufacture and processing of Roll Collar：
1) the middle carbon chromium nickel molybdenum WC50 steel bonded carbide that powder metallurgical technique is manufactured is carried out into forging molding；
2) the middle carbon chromium nickel molybdenum WC50 steel bonded carbide of forging molding is carried out into spheroidizing treatment, makes steel bonded carbide hard
Degree ＜ HRA74；
3) steel bonded carbide after spheroidizing is processed is processed according to the size needed for Roll Collar product, by Roll Collar
Certain stock removal is reserved at physical dimension and endoporus dress dress bearing；
4) the steel bonded carbide Roll Collar that will be processed is quenched and tempering heat treatment, makes its hardness ＞ HRA80；
5) grinding to institute will be carried out by quenching and the good steel bonded carbide Roll Collar appearance of tempering heat treatment and endoporus
Need size；
6) by the good steel bonded carbide Roll Collar of grinding carry out quality inspection it is qualified after in its surface and endoporus oiling, so
After pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710126374.1A CN106906400A (en) | 2017-03-04 | 2017-03-04 | A kind of middle carbon chromium nickel molybdenum WC50 steel bonded carbide Roll Collar and its manufacture method |
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| CN201710126374.1A CN106906400A (en) | 2017-03-04 | 2017-03-04 | A kind of middle carbon chromium nickel molybdenum WC50 steel bonded carbide Roll Collar and its manufacture method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3809540A (en) * | 1972-12-29 | 1974-05-07 | Chromalloy American Corp | Sintered steel bonded titanium carbide tool steel characterized by an improved combination of transverse rupture strength and resistance to thermal shock |
| US4174967A (en) * | 1978-01-27 | 1979-11-20 | Chromalloy American Corporation | Titanium carbide tool steel composition for hot-work application |
| CN101724735A (en) * | 2009-12-18 | 2010-06-09 | 安泰科技股份有限公司 | Heat treating method for medium-carbon chromium-molybdenum steel base steel bond hard alloy |
| CN105689723A (en) * | 2016-02-19 | 2016-06-22 | 郭金艳 | Automobile steering-gear cylinder barrel |
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2017
- 2017-03-04 CN CN201710126374.1A patent/CN106906400A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3809540A (en) * | 1972-12-29 | 1974-05-07 | Chromalloy American Corp | Sintered steel bonded titanium carbide tool steel characterized by an improved combination of transverse rupture strength and resistance to thermal shock |
| US4174967A (en) * | 1978-01-27 | 1979-11-20 | Chromalloy American Corporation | Titanium carbide tool steel composition for hot-work application |
| CN101724735A (en) * | 2009-12-18 | 2010-06-09 | 安泰科技股份有限公司 | Heat treating method for medium-carbon chromium-molybdenum steel base steel bond hard alloy |
| CN105689723A (en) * | 2016-02-19 | 2016-06-22 | 郭金艳 | Automobile steering-gear cylinder barrel |
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