CN107365948A - A kind of cold working die steel material and preparation method thereof - Google Patents

A kind of cold working die steel material and preparation method thereof Download PDF

Info

Publication number
CN107365948A
CN107365948A CN201710799296.1A CN201710799296A CN107365948A CN 107365948 A CN107365948 A CN 107365948A CN 201710799296 A CN201710799296 A CN 201710799296A CN 107365948 A CN107365948 A CN 107365948A
Authority
CN
China
Prior art keywords
cold working
steel material
working die
die steel
preparation
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
Application number
CN201710799296.1A
Other languages
Chinese (zh)
Inventor
刘浩
张君
张欢芬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Hao Yan Precision Mold Ltd Co
Original Assignee
Suzhou Hao Yan Precision Mold Ltd Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Suzhou Hao Yan Precision Mold Ltd Co filed Critical Suzhou Hao Yan Precision Mold Ltd Co
Priority to CN201710799296.1A priority Critical patent/CN107365948A/en
Publication of CN107365948A publication Critical patent/CN107365948A/en
Pending legal-status Critical Current

Links

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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26—Methods of annealing
    • 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
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • 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
    • C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
    • 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
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • 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
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
    • 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
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

The invention provides a kind of cold working die steel material, is made by the component of following mass percent：C 1.5 1.6%, Cr 11 12%, V 0.9 1.1%, Si 0.5 0.8%, Mn 0.4 0.6%, Mo 0.7 0.9%, Al≤0.03%, Ni≤0.01%, Sn≤0.02%, S≤0.03%, P≤0.03%, N 0.05 0.15%, B≤0.1%, W≤0.02%, Re≤0.02%, surplus are Fe and inevitable impurity.Its preparation method is that raw material melting first is made into molten steel, then molten steel is cast ingot, after annealing, is processed into sample, through quenching, temper, you can.The cold working die steel material has the excellent properties such as high rigidity, intensity, wearability, toughness and high-hardenability, hardenability.

Description

A kind of cold working die steel material and preparation method thereof
Technical field
The invention belongs to cold mold material technical field, and in particular to a kind of cold working die steel material and its preparation side Method.
Background technology
Mould is that manufacturing industry realizes the important shaping jig quantitatively produced, is the indispensable important life of manufacturing industry Production tool, the height of the usual mould level of production, directly decides the height of enterprise production level, can equally reflect one The horizontal height of national manufacturing industry.According to the statistics of correlation, in auto manufacturing, steamer manufacturing industry, aviation, electronic product and The industries such as household electrical appliance, about 70% or so parts are all machined by mould, and the expense for manufacturing mould accounts for The cost ratio of totle drilling cost is very high, up to 15-30% or so.The horizontal excellent quality of Making mold will directly affect final products Quality, the quality of the industrial products of most of mass productions and the speed of production efficiency, the height of production cost and new production The speed of product exploitation, all largely restrict the precision in mold body, the quality of mould, production cycle, mould opens The cost of hair and the service life of mould etc..
Mould steel not only determines the mold use life-span as important mold materials, its manufacture level and quality, more It is related to the manufacture continuity of production process and cheapness, and the quality of mold materials, especially die steel material is lifting Die quality matter of utmost importance to be solved.In order to meet cold-working mold use performance, usually require that cold mold material has There are high hardness and wearability, the entirety of modulus tool has preferable toughness again, and the requirement of this comprehensive mechanical performance is The bottleneck problem for being restriction cold work die steel practical application is also the difficult point in R＆D process.
The content of the invention
It is an object of the invention to provide a kind of cold working die steel material and preparation method thereof.
A kind of cold working die steel material, it is made by the component of following mass percent：C 1.5-1.6%, Cr 11-12%, V 0.9-1.1%, Si 0.5-0.8%, Mn 0.4-0.6%, Mo 0.7-0.9%, Al≤0.03%, Ni≤0.01%, Sn≤0.02%, S ≤ 0.03%, P≤0.03%, N 0.05-0.15%, B≤0.1%, W≤0.02%, Re≤0.02%, surplus is for Fe and inevitably Impurity.
Preferably, above-mentioned cold working die steel material, it is made by the component of following mass percent：C 1.578%, Cr 11.567%, V 1.053%, Si 0.689%, Mn 0.523%, Mo 0.817%, Al 0.0225%, Ni 0.0087%, Sn 0.0134%, S 0.0254%, P 0.0174%, N 0.0876%, B 0.0478%, W 0.01%, Re 0.01%, surplus is for Fe and not Evitable impurity.
The preparation method of above-mentioned cold working die steel material, raw material melting is first made molten steel, then molten steel is cast ingot, warp After annealing, sample is processed into, through quenching, temper, you can.
Preferably, annealing process is first 400 DEG C of preheatings 0.5h, is then heated to 860 DEG C of 2 h of insulation, cools to 740 with the furnace 5h is incubated after DEG C.
Preferably, for quenching technical for furnace temperature first is heated into 800 DEG C of insulations, material is put into after being preheated 30 minutes in stove will Furnace temperature is raised to 1040 DEG C, is incubated 30 minutes, air cooling.
Preferably, the temperature of the tempering process is 480 DEG C.
Using 1.5-1.6% C, coordinate 0.05-0.15%N and B≤0.1%, the carbonization of high-melting-point high intensity can be formed Thing, so as to improve the intensity of Steel material, hardness and wearability；0.9-1.1%V is added, increases the quantity of carbide in steel, to enter One step improves the wearability of steel；Al determines nitrogen agent as deoxidation, can crystal grain thinning, improve toughness of the steel in low temperature, reduce steel Brittle transition temperature, expand the hot processing temperature scope of steel, Re rare earths can also refine steel grade crystal grain, reduce the eutectic on crystal boundary Carbide, eutectic carbide grid is set to diminish, thickness is thinning, makes eutectic carbide Dispersed precipitate, reduces the inclined of alloying element Analysis；Si can strengthen the post-curing ability of steel heat treatment, reduce the critical cooling rate of steel, improve as reinforced ferrite The quenching degree of steel；Mo plays the role of solution strengthening to ferrite, carry can Gao Gang red hardness；Mn make it that cutting is easily cataclasm, Be advantageous to improve the quality of finished surface.Used annealing process can effectively reduce the hardness of steel curved beam, and quenching technical can enter One step improves the case hardness of steel curved beam；And 480 DEG C are tempered the hardness and intensity requirement that can meet material military service.
The cold working die steel material of the present invention has high rigidity, intensity, wearability, toughness and high-hardenability, hardenability etc. Excellent properties, meet the requirement of cold work die steel product standard.
Embodiment
Embodiment 1
A kind of cold working die steel material, it is made by the component of following mass percent：C 1.503%, Cr 11.143%, V 0.928%, Si 0.532%, Mn 0.417%, Mo 0.726%, Al 0.0123%, Ni 0.0032%, Sn 0.0089%, S 0.0052%, P 0.00987%, N 0.0589%, B 0.0513%, W 0.00875%, Re 0.00543%, surplus are Fe and can not The impurity avoided.
The preparation method of above-mentioned cold working die steel material, raw material melting is first made molten steel, then molten steel is cast ingot, warp After annealing, sample is processed into, through quenching, temper, you can.
Wherein, annealing process is first 400 DEG C of preheatings 0.5h, is then heated to 860 DEG C of 2 h of insulation, cools to 740 DEG C with the furnace After be incubated 5h.
Material is put into furnace temperature liter after being preheated 30 minutes in stove by quenching technical for furnace temperature first is heated into 800 DEG C of insulations To 1040 DEG C, 30 minutes are incubated, air cooling.
The temperature of tempering process is 480 DEG C.
Service check, hardness 65HRC are carried out to product by national standard GB/T230, B/T229, non-notch impact flexibility is 36J/cm2。
Embodiment 2
A kind of cold working die steel material, it is made by the component of following mass percent：C 1.578%, Cr 11.567%, V 1.053%, Si 0.689%, Mn 0.523%, Mo 0.817%, Al 0.0225%, Ni 0.0087%, Sn 0.0134%, S 0.0254%, P 0.0174%, N 0.0876%, B 0.0478%, W 0.01%, Re 0.01%, surplus be Fe and inevitably it is miscellaneous Matter.
The preparation method of above-mentioned cold working die steel material, raw material melting is first made molten steel, then molten steel is cast ingot, warp After annealing, sample is processed into, through quenching, temper, you can.
Wherein, annealing process is first 400 DEG C of preheatings 0.5h, is then heated to 860 DEG C of 2 h of insulation, cools to 740 DEG C with the furnace After be incubated 5h.
Material is put into furnace temperature liter after being preheated 30 minutes in stove by quenching technical for furnace temperature first is heated into 800 DEG C of insulations To 1040 DEG C, 30 minutes are incubated, air cooling.
The temperature of tempering process is 480 DEG C.
Service check, hardness 61HRC are carried out to product by national standard GB/T230, B/T229, non-notch impact flexibility is 32J/cm2。
Embodiment 3
A kind of cold working die steel material, it is made by the component of following mass percent：C 1.537%, Cr 11.425%, V 1.364%, Si 0.752%, Mn 0.563%, Mo 0.817%, Al 0.0235%, Ni 0.0056%, Sn 0.0145%, S 0.0187%, P 0.0121%, N 0.0875%, B 0.0328%, W 0.0124%, Re 0.0104%, surplus is for Fe and unavoidably Impurity.
The preparation method of above-mentioned cold working die steel material, raw material melting is first made molten steel, then molten steel is cast ingot, warp After annealing, sample is processed into, through quenching, temper, you can.
Wherein, annealing process is first 400 DEG C of preheatings 0.5h, is then heated to 860 DEG C of 2 h of insulation, cools to 740 DEG C with the furnace After be incubated 5h.
Material is put into furnace temperature liter after being preheated 30 minutes in stove by quenching technical for furnace temperature first is heated into 800 DEG C of insulations To 1040 DEG C, 30 minutes are incubated, air cooling.
The temperature of tempering process is 480 DEG C.
Service check, hardness 67HRC are carried out to product by national standard GB/T230, B/T229, non-notch impact flexibility is 37J/cm2。
Embodiment 4
A kind of cold working die steel material, it is made by the component of following mass percent：C 1.6%, Cr 12%, V 1.1%, Si 0.8%, Mn 0.6%, Mo 0.9%, Al 0.03%, Ni 0.01%, Sn 0.02%, S 0.03%, P 0.03%, N 0.15%, B 0.1%, W 0.02%, Re 0.02%, surplus are Fe and inevitable impurity.
The preparation method of above-mentioned cold working die steel material, raw material melting is first made molten steel, then molten steel is cast ingot, warp After annealing, sample is processed into, through quenching, temper, you can.
Wherein, annealing process is first 400 DEG C of preheatings 0.5h, is then heated to 860 DEG C of 2 h of insulation, cools to 740 DEG C with the furnace After be incubated 5h.
Material is put into furnace temperature liter after being preheated 30 minutes in stove by quenching technical for furnace temperature first is heated into 800 DEG C of insulations To 1040 DEG C, 30 minutes are incubated, air cooling.
The temperature of tempering process is 480 DEG C.
Service check, hardness 62HRC are carried out to product by national standard GB/T230, B/T229, non-notch impact flexibility is 35J/cm2。

Claims (6)

  1. A kind of 1. cold working die steel material, it is characterised in that：It is made by the component of following mass percent：C 1.5-1.6%, Cr 11-12%, V 0.9-1.1%, Si 0.5-0.8%, Mn 0.4-0.6%, Mo 0.7-0.9%, Al≤0.03%, Ni≤0.01%, Sn ≤ 0.02%, S≤0.03%, P≤0.03%, N 0.05-0.15%, B≤0.1%, W≤0.02%, Re≤0.02%, surplus be Fe and Inevitable impurity.
  2. 2. cold working die steel material according to claim 1, it is characterised in that：By the component system of following mass percent ：C 1.578%, Cr 11.567%, V 1.253%, Si 0.689%, Mn 0.523%, Mo 0.817%, Al 0.0225%, Ni 0.0087%, Sn 0.0134%, S 0.0254%, P 0.0174%, N 0.0876%, B 0.0478%, W 0.01%, Re 0.01%, Surplus is Fe and inevitable impurity.
  3. 3. the preparation method of the cold working die steel material described in claim 1 or 2, it is characterised in that：First raw material melting is made Molten steel, then molten steel is cast ingot, after annealing, is processed into sample, through quenching, temper, you can.
  4. 4. the preparation method of cold working die steel material according to claim 3, it is characterised in that：Annealing process is first 400 DEG C preheating 0.5h, be then heated to 860 DEG C insulation 2 h, be incubated 5h after cooling to 740 DEG C with the furnace.
  5. 5. the preparation method of cold working die steel material according to claim 3, it is characterised in that：Quenching technical is first will Furnace temperature is heated to 800 DEG C of insulations, material is put into after being preheated 30 minutes in stove furnace temperature being raised to 1040 DEG C, is incubated 30 minutes, empty It is cold.
  6. 6. the preparation method of cold working die steel material according to claim 3, it is characterised in that：The temperature of the tempering process Spend for 480 DEG C.
CN201710799296.1A 2017-09-07 2017-09-07 A kind of cold working die steel material and preparation method thereof Pending CN107365948A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710799296.1A CN107365948A (en) 2017-09-07 2017-09-07 A kind of cold working die steel material and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710799296.1A CN107365948A (en) 2017-09-07 2017-09-07 A kind of cold working die steel material and preparation method thereof

Publications (1)

Publication Number Publication Date
CN107365948A true CN107365948A (en) 2017-11-21

Family

ID=60311199

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710799296.1A Pending CN107365948A (en) 2017-09-07 2017-09-07 A kind of cold working die steel material and preparation method thereof

Country Status (1)

Country Link
CN (1) CN107365948A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108048751A (en) * 2017-12-15 2018-05-18 苏州浩焱精密模具有限公司 A kind of high-temperature resistance die and preparation method thereof
CN108707821A (en) * 2018-05-28 2018-10-26 攀钢集团攀枝花钢铁研究院有限公司 A kind of Steel material and preparation method thereof
CN109023104A (en) * 2018-09-25 2018-12-18 成都先进金属材料产业技术研究院有限公司 4Cr13 plastic die steel and preparation method thereof
CN109972059A (en) * 2017-12-27 2019-07-05 天工爱和特钢有限公司 A kind of high-strength die steel

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1511969A (en) * 2002-11-06 2004-07-14 大同特殊钢株式会社 Alloy tool steel and its producing method and mold using it
JP2008189982A (en) * 2007-02-02 2008-08-21 Daido Steel Co Ltd Tool steel
CN103938091A (en) * 2014-04-28 2014-07-23 钢铁研究总院 High-toughness and high-wear-resistant cold-work die steel
CN104480400A (en) * 2014-12-18 2015-04-01 钢铁研究总院 C-N-B composite hardened high-wear-resistance cold-work die steel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1511969A (en) * 2002-11-06 2004-07-14 大同特殊钢株式会社 Alloy tool steel and its producing method and mold using it
JP2008189982A (en) * 2007-02-02 2008-08-21 Daido Steel Co Ltd Tool steel
CN103938091A (en) * 2014-04-28 2014-07-23 钢铁研究总院 High-toughness and high-wear-resistant cold-work die steel
CN104480400A (en) * 2014-12-18 2015-04-01 钢铁研究总院 C-N-B composite hardened high-wear-resistance cold-work die steel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108048751A (en) * 2017-12-15 2018-05-18 苏州浩焱精密模具有限公司 A kind of high-temperature resistance die and preparation method thereof
CN109972059A (en) * 2017-12-27 2019-07-05 天工爱和特钢有限公司 A kind of high-strength die steel
CN108707821A (en) * 2018-05-28 2018-10-26 攀钢集团攀枝花钢铁研究院有限公司 A kind of Steel material and preparation method thereof
CN108707821B (en) * 2018-05-28 2020-07-03 攀钢集团攀枝花钢铁研究院有限公司 Steel material and preparation method thereof
CN109023104A (en) * 2018-09-25 2018-12-18 成都先进金属材料产业技术研究院有限公司 4Cr13 plastic die steel and preparation method thereof

Similar Documents

Publication Publication Date Title
JP6432070B2 (en) Hot die steel for long-life die casting excellent in high-temperature thermal conductivity and method for producing the same
CN104046921B (en) Super-section Pre-Bainitic sclerosis plastic mould steel and preparation method thereof
CN105525078B (en) A kind of preparation method of raising 4Cr5MoSiV1 hot-work die Steel Properties
CN102242316B (en) H13 die steel and preparation method thereof
CN102230130B (en) Wear-resistant plastic die steel and preparation method thereof
CN105779898B (en) Cold-work die steel plate and manufacturing method thereof
CN104532154A (en) High-hardness high-polishing pre-hardening plastic die steel and manufacture technology thereof
CN106244927A (en) A kind of low-density unimach and preparation method thereof
CN102534391A (en) Hot-work die steel for extrusion wheel and manufacturing method thereof
CN107974636A (en) A kind of high rigidity high-hardenability pre-hardening plastic die steel and preparation method thereof
CN107365948A (en) A kind of cold working die steel material and preparation method thereof
CN106399858B (en) A kind of low-density Ti3Al enhancing unimach and preparation method thereof
CN109266970A (en) High-nitrogen, high-chromium plastic die steel and its smelting and heat treatment method
CN113737106B (en) Die steel for 1500MPa hot stamping part cold trimming punching cutter and preparation method thereof
JP5226083B2 (en) High alloy cold die steel
CN101476082A (en) High performance low cost hot work die steel
CN101220442A (en) Hot work die steel with high-heat stability and high-strength
CN109023104B (en) 4Cr13 plastic die steel and preparation method thereof
CN104164612A (en) High-chromium cast iron die and preparation method thereof
JP2014025103A (en) Hot tool steel
TW202000428A (en) Plastic injection mold tooling and a method of manufacture thereof
CN105463333A (en) Steel for liner plate forging die, liner plate forging die and preparation method thereof
CN105154627A (en) Production method for drilling tool materials used in low-temperature environment
CN108070794B (en) High-wear-resistance hot-work die steel and preparation method thereof
CN114395738B (en) Die steel with high thermal diffusivity and preparation method thereof

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: 20171121

RJ01 Rejection of invention patent application after publication