CN102766745A - Heat treatment method for high-speed steel for rollers - Google Patents

Heat treatment method for high-speed steel for rollers Download PDF

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Publication number
CN102766745A
CN102766745A CN2012102317356A CN201210231735A CN102766745A CN 102766745 A CN102766745 A CN 102766745A CN 2012102317356 A CN2012102317356 A CN 2012102317356A CN 201210231735 A CN201210231735 A CN 201210231735A CN 102766745 A CN102766745 A CN 102766745A
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steel
heated
roll
stove
insulation
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靳玉生
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WUXI DRILLTO TRENCHLESS CO Ltd
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WUXI DRILLTO TRENCHLESS CO Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

Abstract

The invention discloses a heat treatment method for high-speed steel for rollers. The chemical composition of the high-speed steel consists of the following components in percentage by weight: C: 3.2 to 3.6; W: 1.2 to 1.6; Mo: 5.0 to 7.0; V: 2.0 to 3.0; Cr: 8.0 to 10.0; Al: 0.1 to 0.4; Ni: 2.2 to 2.6; Co: 6.5 to 7.5; Nb: 0.2 to 0.4; Ti: 0.2 to 0.4; Ce: 0.4 to 0.6; Zr: 0.05 to 0.20; Si: less than 0.8; Mn: less than 1.5; S: less than 0.03; P: less than 0.04; and the balance of Fe. After the high-speed steel is cast to form a billet and the billet is roughly machined, the billet is quenched, the quenching process is carried out when a furnace is heated to 1260 DEG C to 1280 DEG C, the temperature is kept for 3 to 5 hours, the billet is then quenched in oil, and is tempered after being quenched, the tempering process is carried out when the furnace is heated to 620 DEG C to 650 DEG C, the temperature is kept for 5 to 7 hours, the furnace is cooled and then heated to 610 DEG C to 630 DEG C again, the temperature is kept for 5 to 7 hours, and after air cooling and tempering, finish machining is carried out, so that a roller, the dimensional precision and surface roughness of which come up to requirements, is obtained.

Description

A kind of roll is with the heat treating method of rapid steel
Technical field
The present invention relates to the ferrous metallurgy field, particularly a kind of heat treating method of rapid steel.
Background technology
Roll is one of main consumption spare part during steel rolling is produced, and roll consumption is about 5%~15% of steel rolling production cost.Shut down, fall factors such as product and maintenance of the equipment increase if consider the production that brings because of roll consumption, then the proportion of its shared production cost can be higher.Roll quality not only is related to steel rolling production cost and milling train production operational availability, also influences mill bar quality to a great extent.Along with the development of steel rolling technology, rolling mill speed and level of automation improve constantly, and breaker roll quality particularly wear resistance, intensity and the toughness etc. of roll is had higher requirement.In recent years, because to the specific demand of rolling stock, the performance of the size of stocking, surface accuracy, stocking is all had higher requirement.In addition, along with the development of rolling technique, the Working environment of roll is also more and more harsher, is example with the hot continuous rolling, and roll is under high temperature, high loading, the high-speed mal-condition for a long time, and the performance requriements of breaker roll is higher.How improving roller performance to adapt to the needs of milling train, is the new problem that roll development person faces.
In common rapid steel, increase carbon content and content of vanadium, can increase the quantity of high firmness MC type carbide, improve the wear resistance of rapid steel.Replacing rich chromium cast iron, infinitely chilled ductile cast iron and casting half steel to make roll with high-carbon high-high-vanadium high-speed steel at present is one of main developing direction.Chinese invention patent CN1631565 discloses a kind of High Vanadium Rapid Steel Composite Roll And Production Technology; Roll is divided into roller core and roll wearing layer; Roller core adopts toughness low alloy steel or mild steel material making preferably; The roll wearing layer adopts the high-vanadium high-speed steel material, and the principal element content of this high-vanadium high-speed steel is: C:1.8~3.5%, V:7~12%, Cr:4~5%, Mo:2~4%, Ni:0.5~1.5%, surplus are iron.Its production technique is: roller core and roll wearing layer are one through the compound founding of induction heating consecutive solidification crystallization method.The invention roll vanadium content is too high, prone to low hardness M 3 C type carbides, reduce the wear resistance of high speed steel (good and Miyasaka, Yoshihiro Kataoka, soup Koji Nakata high carbon steel Full speed carbide formation and ぼ す van ni inner zip ウ impact of Rousseau added, casting Engineering, 1997,69 (3): 201 ~ 206).Chinese invention patent CN1807671 discloses a kind of continuous composite high speed steel roll formula, and roller core adopts the alloy forged steel material of H.T., and the rapid steel composition that the outer body of roll adopts is (weight %): 1.5~3.5C; 2.0~7.0Cr, 2.0~7.0Mo, 4.0~10.0V; 4.0~10.0W; 0~10.0Co, < 2.0, surplus is Fe to Ni.Adopt this prescription can develop the composite high-speed steel roller that W, V content are high, segregation is light, wear resistance is good, can satisfy the hot continuous rolling technology requirement.This material high-speed steel roll can only adopt continuous recombining process to be shaped, and equipment complicacy and production efficiency are low, and when adopting centre spinning method to be shaped, element segregation is serious, reduces the roll wear resistance.Chinese invention patent CN1803325 discloses a kind of compound high speed steel roll and preparation method thereof, and the cladding material that it is characterized in that this composite roll is a rapid steel, and the core of the roll material is a graphitized steel, and the chemical ingredients of skin of the roll high speed steel material (weight %) is: 1.2~2.5C; 0.3~1.5Si, 0.4~1.0Mn, 3.0~8.0Cr, 2.0~7.0Mo; 2.0~7.0V, 1.0~5.0W, 0.01~0.5RE; < 0.05, < 0.05, surplus is Fe to S to P.The chemical ingredients (weight %) of core of the roll graphitized steel material is: 1.2~2.0C, 1.5~2.5Si, 0.3~1.0Mn; 0.5~1.5Ni, < 0.2, Mo < 0.2 for Cr; P 0.05, S < 0.05,0.01~0.2RE; 0.05~0.5Ca, surplus is Fe, and outer high speed steel material of composite roll and core graphitized steel material are metallurgical binding.Its method of manufacture is after adopting centrifugal casting technique with two kinds of metallic substance cast moldings; Again composite roll is carried out roughing and quenching heat treatment; Adopt this method to make roll; It is high to have core of the roll intensity, anti-accident ability strong with improve characteristics such as online work-ing life of roll and the rate of manufacturing a finished product significantly improve.But it is thick that this roller body is organized, and partially carbonized thing is continuous net-shaped distribution, and the roll thermal fatigue resistance is poor, is prone to be full of cracks during roll uses and peels off, and influences the normal use of roll.Chinese invention patent CN1339342 discloses a kind of method of manufacture of high speed steel roll ring; Its main points are to make the quick-cutting steel electrode hollow billet earlier; Be placed on then in the roller shell esr equipment with Quench mold and carry out esr, process blank, heat-treat again and machining.Its advantage is: roll sleeve crystal grain is tiny, homogeneous microstructure, and inclusion is few; There are not defectives such as shrinkage cavity, loose, element segregation; Performances such as wear resistance, obdurability are improved, increase the service life, can overcome the weak point that present centrifugal casting and CPC method etc. are made roll or roller shell; Further improve wear resistance and obdurability, can be used for making roller shell and rolls such as pipe-mill, high-speed rod pre-finishing mill, arrowband finishing mill and small section mill.There are deficiencies such as complex process, energy consumption height and efficient are low in this method.
Summary of the invention
To the deficiency of prior art, one of the object of the invention is to provide the heat treating method of a kind of roll with rapid steel, and this rapid steel hardness, intensity and toughness are high, and red hardness and wear resistance are good.
For realizing above-mentioned purpose, the technical scheme that the present invention adopts is following:
A kind of roll is with the heat treating method of rapid steel, and the chemical constitution of said rapid steel is made up of following component by weight percentage: C:3.2-3.6, W:1.2-1.6, Mo:5.0-7.0; V:2.0-3.0, Cr:8.0-10.0, Al:0.1-0.4, Ni:2.2-2.6; Co:6.5-7.5, Nb:0.2-0.4, Ti:0.2-0.4, Ce:0.4-0.6; Zr:0.05-0.20, Si<0.8, Mn<1.5, S<0.03; P<0.04, all the other are Fe, the step of preparation process of this rapid steel is: 1. ordinary scrap steel, the pig iron, ferrotungsten, molybdenum-iron, vanadium iron, ferrochrome, ferro-niobium, ferrotianium, nickel plate and cobalt metal are mixed by the mentioned component requirement and put into the electric furnace heat fused; 2. the stokehold is adjusted to branch and temperature is risen to 1580 ℃-1630 ℃ after qualified, adds the Al deoxidation and the alloying that account for molten steel weight 0.3%-0.8%, then comes out of the stove; Alterant, cerium base magnesium-rare earth are crushed to the fritter of granularity less than 15mm, after oven dry below 200 ℃, place the casting ladle bottom, with the method that pours in the bag molten steel is carried out composite inoculating and handle; 3. adopt gray iron or magnesium iron casting mold, be preheated to 230-240 ℃ after at internal surface brushing refractory paint, thickness is 0.8-1.2mm, is installed on after the mould drying on the whizzer, is preheated to 270-300 ℃ of waiting for pouring; The adjustment liquid steel temperature is 1510-1550 ℃, starts whizzer, and making its rotating speed is 800rpm-1000rpm; With pouring molten steel in casting mold; Pouring molten steel finishes behind the 20min-30min, closes whizzer, from casting mold, takes out strand and handles directly into furnace annealing; Annealing treating process is: strand is not less than 200 ℃ heat treatment furnace with temperature and is heated to 700 ℃-750 ℃ insulation 1h-2h; Continue to be heated to 1030 ℃-1050 ℃ insulation 4h-8h then, stove is cold to get final product, and then strand is carried out roughing;
Described heat treating method does, carries out quench treatment after the roughing, and quenching processing technology is to be heated to 1260 ℃-1280 ℃ with stove, insulation 3h-5h; Oil quenching carries out temper after the quenching then, and temper technology is to be heated to 620 ℃-650 ℃ with stove, insulation 5h-7h; Stove is cold, and then is heated to 610 ℃-630 ℃, insulation 5h-7h; Air cooling carries out precision work after the temper, obtain the satisfactory roll of dimensional precision and surface smoothness.
The present invention compared with prior art has following beneficial effect:
1. the present invention has at first optimized the composition design of rapid steel, and wherein C is the fundamental element that forms wear-resisting phase carbide, and C content is low to cause carbide quantity few, therefore improves carbon content to 3.2-3.6%, is higher than 3.6% and will causes fragility to increase.W in rapid steel mainly with Fe 4W 2The C form exists, when quenching heating, and a part of Fe 4W 2C dissolves in austenite, is present in the martensite after the quenching.W content increases, and can improve the rapid steel red hardness and reduce hot supersensitivity, but the too high ununiformity that can increase carbide of W content increases the fragility of steel, so W content is controlled at 1.2-1.6%.Mo is close to the influence and the W of rapid steel, and it is the principal element that promotes secondary hardening equally.V except cleaning molten steel, reduces outside inclusion and the gas content in rapid steel, mainly forms the MC type carbide of high firmness; The MC dissolving is very difficult during high temperature austenite; Increase V content in the rapid steel, can obviously improve wear resistance, but contain the V too high levels; Owing to be prone to be full of cracks along crystal boundary, so V content is controlled at 2.0-3.0%.Cr part in rapid steel is present in M 6In the C type carbide, also can form M 23C 6The type carbide also has about 40% to be present in the matrix.The Cr too high levels, the formation of the carbide that deposition was separated out when unnecessary Cr participated in tempering, this Cr of containing carbide is separated out when lesser temps easily, has reduced the thermostability of steel, therefore Cr content is controlled at 8.0-10.0%.Ni is a kind of non-carbide forming element, and its solid solution can improve the intensity and the thermal fatigue resistance of matrix in matrix, is favourable to freedom from cracking and the peel-ability that improves high-speed steel roll.Co:Co can improve Red Hardness of High Speed Steel, be very favorable to improving the high-speed steel roll high temperature abrasion resistance, but Co reduces rapid steel toughness, takes all factors into consideration Co content is controlled at 6.5-7.5%.Nb: contain alloying elements such as more W, Mo, Cr, V in the rapid steel, and the density difference of the carbide of these elements and formation thereof is very big, under centrifugal action, is prone to produce segregation, reduced the wear resistance of roll.Add Nb and can form the bigger MC type double carbide of density, it is poor to reduce carbide and fusant density, alleviates segregation, improves the roll wear resistance.The feasible performance that has guaranteed rapid steel from composition of such design.
2. making roll with the present invention only needs common equipments such as electric furnace, centrifugal casting machine, heat treatment furnace, and production technique is simple
3. the present invention has optimized thermal treatment process, makes that metallographic structure is main with the martensite of high firmness, also contains the high firmness eutectic carbides more than 15% after the thermal treatment, and roll hardness is high, and greater than 65HRC, wear resistance is good.
The roll that the present invention makes is organized tinyly, even, and intensity is high with toughness, and thermal fatigue resistance is good, can not occur during roll of the present invention uses chapping and peeling off, and also broken roller can not take place.
Below in conjunction with embodiment the present invention is done further explain.These embodiment only are preferred embodiments of the present invention, but the present invention is not limited to these embodiment.
Embodiment
Embodiment one
A kind of roll is with the heat treating method of rapid steel, and the chemical constitution of said rapid steel is made up of following component by weight percentage: C:3.2, W:1.6, Mo:5.0; V:3.0, Cr:8.0, Al:0.4, Ni:2.2; Co:7.5, Nb:0.2, Ti:0.4, Ce:0.4; Zr:0.20, Si<0.8, Mn<1.5, S<0.03; P<0.04, all the other are Fe, the step of preparation process of this rapid steel is: 1. ordinary scrap steel, the pig iron, ferrotungsten, molybdenum-iron, vanadium iron, ferrochrome, ferro-niobium, ferrotianium, nickel plate and cobalt metal are mixed by the mentioned component requirement and put into the electric furnace heat fused; 2. the stokehold is adjusted to branch and temperature is risen to 1580 ℃-1630 ℃ after qualified, adds the Al deoxidation and the alloying that account for molten steel weight 0.3%, then comes out of the stove; Alterant, cerium base magnesium-rare earth are crushed to the fritter of granularity less than 15mm, after oven dry below 200 ℃, place the casting ladle bottom, with the method that pours in the bag molten steel is carried out composite inoculating and handle; 3. adopt gray iron or magnesium iron casting mold, be preheated to 230 ℃ after at internal surface brushing refractory paint, thickness is 1.2mm, is installed on after the mould drying on the whizzer, is preheated to 270 ℃ of waiting for pouring; The adjustment liquid steel temperature is 1550 ℃, starts whizzer, and making its rotating speed is 800rpm; With pouring molten steel in casting mold; Pouring molten steel finishes behind the 30min, closes whizzer, from casting mold, takes out strand and handles directly into furnace annealing; Annealing treating process is: strand is not less than 200 ℃ heat treatment furnace with temperature and is heated to 700 ℃ of insulation 2h; Continue to be heated to 1030 ℃ of insulation 8h then, stove is cold to get final product, and then strand is carried out roughing;
Described heat treating method does, carries out quench treatment after the roughing, and quenching processing technology is to be heated to 1260 ℃ with stove, insulation 5h; Oil quenching carries out temper after the quenching then, and temper technology is to be heated to 620 ℃ with stove, insulation 7h; Stove is cold, and then is heated to 610 ℃, insulation 7h; Air cooling carries out precision work after the temper, obtain the satisfactory roll of dimensional precision and surface smoothness.
Embodiment two
A kind of roll is with the heat treating method of rapid steel, and the chemical constitution of said rapid steel is made up of following component by weight percentage: C:3.6, W:1.2, Mo:7.0; V:2.0, Cr:10.0, Al:0.1, Ni:2.6; Co:6.5, Nb:0.4, Ti:0.2, Ce:0.6; Zr:0.05, Si<0.8, Mn<1.5, S<0.03; P<0.04, all the other are Fe, the step of preparation process of this rapid steel is: 1. ordinary scrap steel, the pig iron, ferrotungsten, molybdenum-iron, vanadium iron, ferrochrome, ferro-niobium, ferrotianium, nickel plate and cobalt metal are mixed by the mentioned component requirement and put into the electric furnace heat fused; 2. the stokehold is adjusted to branch and temperature is risen to 1580 ℃-1630 ℃ after qualified, adds the Al deoxidation and the alloying that account for molten steel weight 0.8%, then comes out of the stove; Alterant, cerium base magnesium-rare earth are crushed to the fritter of granularity less than 15mm, after oven dry below 200 ℃, place the casting ladle bottom, with the method that pours in the bag molten steel is carried out composite inoculating and handle; 3. adopt gray iron or magnesium iron casting mold, be preheated to 240 ℃ after at internal surface brushing refractory paint, thickness is 0.8mm, is installed on after the mould drying on the whizzer, is preheated to 300 ℃ of waiting for pouring; The adjustment liquid steel temperature is 1510 ℃, starts whizzer, and making its rotating speed is 1000rpm; With pouring molten steel in casting mold; Pouring molten steel finishes behind the 20mi n, closes whizzer, from casting mold, takes out strand and handles directly into furnace annealing; Annealing treating process is: strand is not less than 200 ℃ heat treatment furnace with temperature and is heated to 750 ℃ of insulation 1h; Continue to be heated to 1050 ℃ of insulation 4h then, stove is cold to get final product, and then strand is carried out roughing;
Described heat treating method does, carries out quench treatment after the roughing, and quenching processing technology is to be heated to 1280 ℃ with stove, insulation 3h; Oil quenching carries out temper after the quenching then, and temper technology is to be heated to 650 ℃ with stove, insulation 5h; Stove is cold, and then is heated to 630 ℃, insulation 5h; Air cooling carries out precision work after the temper, obtain the satisfactory roll of dimensional precision and surface smoothness.
Embodiment three
A kind of roll is with the heat treating method of rapid steel, and the chemical constitution of said rapid steel is made up of following component by weight percentage: C:3.4, W:1.4, Mo:6.0; V:2.5, Cr:9.00, Al:0.25, Ni:2.4; Co:7.0, Nb:0.3, Ti:0.3, Ce:0.5; Zr:0.12, Si<0.8, Mn<1.5, S<0.03; P<0.04, all the other are Fe, the step of preparation process of this rapid steel is: 1. ordinary scrap steel, the pig iron, ferrotungsten, molybdenum-iron, vanadium iron, ferrochrome, ferro-niobium, ferrotianium, nickel plate and cobalt metal are mixed by the mentioned component requirement and put into the electric furnace heat fused; 2. the stokehold is adjusted to branch and temperature is risen to 1580 ℃-1630 ℃ after qualified, adds the Al deoxidation and the alloying that account for molten steel weight 0.6%, then comes out of the stove; Alterant, cerium base magnesium-rare earth are crushed to the fritter of granularity less than 15mm, after oven dry below 200 ℃, place the casting ladle bottom, with the method that pours in the bag molten steel is carried out composite inoculating and handle; 3. adopt gray iron or magnesium iron casting mold, be preheated to 235 ℃ after at internal surface brushing refractory paint, thickness is 1.0mm, is installed on after the mould drying on the whizzer, is preheated to 285 ℃ of waiting for pouring; The adjustment liquid steel temperature is 1530 ℃, starts whizzer, and making its rotating speed is 900rpm; With pouring molten steel in casting mold; Pouring molten steel finishes behind the 25min, closes whizzer, from casting mold, takes out strand and handles directly into furnace annealing; Annealing treating process is: strand is not less than 200 ℃ heat treatment furnace with temperature and is heated to 725 ℃ of insulation 1.5h; Continue to be heated to 1040 ℃ of insulation 6h then, stove is cold to get final product, and then strand is carried out roughing;
Described heat treating method does, carries out quench treatment after the roughing, and quenching processing technology is to be heated to 1270 ℃ with stove, insulation 4h; Oil quenching carries out temper after the quenching then, and temper technology is to be heated to 635 ℃ with stove, insulation 6h; Stove is cold, and then is heated to 620 ℃, insulation 6h; Air cooling carries out precision work after the temper, obtain the satisfactory roll of dimensional precision and surface smoothness.
Applicant's statement; The present invention explains detailed process equipment of the present invention and technical process through the foregoing description; But the present invention is not limited to above-mentioned detailed process equipment and technical process, does not mean that promptly the present invention must rely on above-mentioned detailed process equipment and technical process could be implemented.The person of ordinary skill in the field should understand, and to any improvement of the present invention, to the interpolation of the equivalence replacement of each raw material of product of the present invention and ancillary component, the selection of concrete mode etc., all drops within protection scope of the present invention and the open scope.

Claims (1)

1. a roll is characterized in that the chemical constitution of said rapid steel is made up of following component by weight percentage: C:3.2-3.6, W:1.2-1.6 with the heat treating method of rapid steel; Mo:5.0-7.0, V:2.0-3.0, Cr:8.0-10.0, Al:0.1-0.4; N i:2.2-2.6, Co:6.5-7.5, Nb:0.2-0.4; T i:0.2-0.4, Ce:0.4-0.6, Zr:0.05-0.20; Si<0.8, Mn<1.5, S<0.03; P<0.04, all the other are Fe, the step of preparation process of this rapid steel is: 1. ordinary scrap steel, the pig iron, ferrotungsten, molybdenum-iron, vanadium iron, ferrochrome, ferro-niobium, ferrotianium, nickel plate and cobalt metal are mixed by the mentioned component requirement and put into the electric furnace heat fused; 2. the stokehold is adjusted to branch and temperature is risen to 1580 ℃-1630 ℃ after qualified, adds the Al deoxidation and the alloying that account for molten steel weight 0.3%-0.8%, then comes out of the stove; Alterant, cerium base magnesium-rare earth are crushed to the fritter of granularity less than 15mm, after oven dry below 200 ℃, place the casting ladle bottom, with the method that pours in the bag molten steel is carried out composite inoculating and handle; 3. adopt gray iron or magnesium iron casting mold, be preheated to 230-240 ℃ after at internal surface brushing refractory paint, thickness is 0.8-1.2mm, is installed on after the mould drying on the whizzer, is preheated to 270-300 ℃ of waiting for pouring; The adjustment liquid steel temperature is 1510-1550 ℃, starts whizzer, and making its rotating speed is 800rpm-1000rpm; With pouring molten steel in casting mold; Pouring molten steel finishes behind the 20min-30min, closes whizzer, from casting mold, takes out strand and handles directly into furnace annealing; Annealing treating process is: strand is not less than 200 ℃ heat treatment furnace with temperature and is heated to 700 ℃-750 ℃ insulation 1h-2h; Continue to be heated to 1030 ℃-1050 ℃ insulation 4h-8h then, stove is cold to get final product, and then strand is carried out roughing;
Described heat treating method does, carries out quench treatment after the roughing, and quenching processing technology is to be heated to 1260 ℃-1280 ℃ with stove, insulation 3h-5h; Oil quenching carries out temper after the quenching then, and temper technology is to be heated to 620 ℃-650 ℃ with stove, insulation 5h-7h; Stove is cold, and then is heated to 610 ℃-630 ℃, insulation 5h-7h; Air cooling carries out precision work after the temper, obtain the satisfactory roll of dimensional precision and surface smoothness.
CN2012102317356A 2012-07-05 2012-07-05 Heat treatment method for high-speed steel for rollers Withdrawn CN102766745A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104480396A (en) * 2014-12-31 2015-04-01 芜湖金龙模具锻造有限责任公司 Preparation method of wear-resisting superhard high-speed steel
CN105296859A (en) * 2015-11-15 2016-02-03 丹阳市蓝锐粉末合金制品有限公司 High-speed steel containing chromium
CN106244943A (en) * 2016-08-19 2016-12-21 合肥东方节能科技股份有限公司 A kind of guide wheel preparation method based on Laigang alloy
CN111283204A (en) * 2020-02-18 2020-06-16 北京科技大学 Preparation method of chromium-molybdenum-vanadium type quick-skating skates material

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104480396A (en) * 2014-12-31 2015-04-01 芜湖金龙模具锻造有限责任公司 Preparation method of wear-resisting superhard high-speed steel
CN105296859A (en) * 2015-11-15 2016-02-03 丹阳市蓝锐粉末合金制品有限公司 High-speed steel containing chromium
CN106244943A (en) * 2016-08-19 2016-12-21 合肥东方节能科技股份有限公司 A kind of guide wheel preparation method based on Laigang alloy
CN111283204A (en) * 2020-02-18 2020-06-16 北京科技大学 Preparation method of chromium-molybdenum-vanadium type quick-skating skates material

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