CN107866660A - A kind of die steel processing technology - Google Patents

A kind of die steel processing technology Download PDF

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Publication number
CN107866660A
CN107866660A CN201610845488.7A CN201610845488A CN107866660A CN 107866660 A CN107866660 A CN 107866660A CN 201610845488 A CN201610845488 A CN 201610845488A CN 107866660 A CN107866660 A CN 107866660A
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CN
China
Prior art keywords
temperature
preheating
60min
stove
incubated
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.)
Withdrawn
Application number
CN201610845488.7A
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Chinese (zh)
Inventor
刘存福
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.)
Chongqing Xiangyang Instrument Co Ltd
Original Assignee
Chongqing Xiangyang Instrument Co Ltd
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 Chongqing Xiangyang Instrument Co Ltd filed Critical Chongqing Xiangyang Instrument Co Ltd
Priority to CN201610845488.7A priority Critical patent/CN107866660A/en
Publication of CN107866660A publication Critical patent/CN107866660A/en
Withdrawn legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18Hardening; Quenching with or without subsequent tempering
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26Methods of annealing
    • C21D1/32Soft annealing, e.g. spheroidising
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/773Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material under reduced pressure or vacuum

Abstract

The invention discloses a kind of die steel processing technology, material 3Cr2W8, it is characterised in that the process comprises the following steps:(1)Forge technique;(2)Annealing process;(3)Roughing;(4)It is quenched;(5)Half smart car;(6)Heat treatment;(7)Finishing;(8)Polishing;(9)Destressing is tempered.A kind of die steel processing technology of the present invention can improve its obdurability, prevent mould premature failure from failing by specification each step requirement, Parameter Conditions and points for attention.

Description

A kind of die steel processing technology
Technical field
The invention belongs to die steel processing technology field, specifically a kind of die steel processing technology.
Background technology
3Cr2W8 steel are one of current domestic widely used cold work die steel materials.The steel have quenching degree good, hard The advantages that high and wear-resisting, heat treatment deformation is small is spent, being usually used in making those, to bear heavy load, production of large quantities, complex-shaped Cold-working mould, such as cold punching, impressing, cold-heading, cold extruding die.But the significant drawback of the steel is that fragility is big, frequently results in mould The initial failure of tool.Therefore, its obdurability how is improved, prevents mould premature failure from failing, is that steel user often meets To and need to solve the problems, such as.Mould invalidation analysis shows, heat treatment factor influence maximum, 50% are accounted for, in view of existing work The defects of skill is deposited, in order to ensure product quality, it is necessary to be further improved.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide a kind of die steel processing technology, can be carried Its high obdurability, prevents mould premature failure from failing.
A kind of die steel processing technology, material 3Cr2W8, it is characterised in that the process comprises the following steps:
(1)Forge technique:780 DEG C~850 DEG C of preheating temperature, 950 DEG C~210 DEG C of heating-up temperature, initial forging temperature 1050 DEG C~210 DEG C, 850 DEG C~950 DEG C of final forging temperature, slow cooling;When forging, upset pulling repeatedly is no less than 3 times;During forging, temperature > Tip-tap at 1050 DEG C;Beaten again during 970~1050 DEG C of temperature;Tip-tap during 970 DEG C of temperature <;
(2)Annealing process:Heat and be warming up to 860 DEG C with≤90 DEG C/h speed, it is cold to stove with 25-30 DEG C/h speed 750 DEG C, then stove it is cold with 10-15 DEG C/h speed cold 600 DEG C to stove, then air cooling of coming out of the stove;
(3)Roughing;
(4)It is quenched:600-600 DEG C of preheating for the first time, it is incubated 45-60min;Second of 850-850 DEG C of preheating, is incubated 45- 60min, soaking time press 1.5min/mm;1115 DEG C are heated to, oil of then quenching;780 DEG C of temperature, air cooling after tempering;
(5)Half smart car;
(6)Heat treatment:Vacuum hardening, 600~600 DEG C of preheating for the first time, it is incubated 45-60min, second of preheating:840~860 DEG C, 45-60min is incubated, soaking time is calculated by 1.5min/mm;980 DEG C of hardening heat, oil cooling, 15~30 DEG C of medium temperature; It is cooled to the subsequent air cooling of oil temperature;
(7)Finishing;(8)Polishing:Roughness is less than 0.6um;(9)Destressing is tempered:210-150 DEG C of temperature, time 2-2.5h。
A kind of die steel processing technology of the present invention passes through specification each step requirement, Parameter Conditions and points for attention, energy Its obdurability is improved, prevents mould premature failure from failing.
Embodiment
With reference to embodiment, the invention will be further described, and its operating procedure is as follows:
A kind of die steel processing technology, material 3Cr2W8, the process comprise the following steps:
(1)Forge technique:780 DEG C~850 DEG C of preheating temperature, 950 DEG C~210 DEG C of heating-up temperature, initial forging temperature 1050 DEG C~210 DEG C, 850 DEG C~950 DEG C of final forging temperature, slow cooling;When forging, upset pulling repeatedly is no less than 3 times;During forging, temperature > Tip-tap at 1050 DEG C;Beaten again during 970~1050 DEG C of temperature;Tip-tap during 970 DEG C of temperature <;
(2)Annealing process:Heat and be warming up to 860 DEG C with≤90 DEG C/h speed, it is cold to stove with 25-30 DEG C/h speed 750 DEG C, then stove it is cold with 10-15 DEG C/h speed cold 600 DEG C to stove, then air cooling of coming out of the stove;
(3)Roughing;
(4)It is quenched:600-600 DEG C of preheating for the first time, it is incubated 45-60min;Second of 850-850 DEG C of preheating, is incubated 45- 60min, soaking time press 1.5min/mm;1115 DEG C are heated to, oil of then quenching;780 DEG C of temperature, air cooling after tempering;
(5)Half smart car;
(6)Heat treatment:Vacuum hardening, 600~600 DEG C of preheating for the first time, it is incubated 45-60min, second of preheating:840~860 DEG C, 45-60min is incubated, soaking time is calculated by 1.5min/mm;980 DEG C of hardening heat, oil cooling, 15~30 DEG C of medium temperature; It is cooled to the subsequent air cooling of oil temperature;
(7)Finishing;(8)Polishing:Roughness is less than 0.6um;(9)Destressing is tempered:210-150 DEG C of temperature, time 2-2.5h。

Claims (1)

1. a kind of die steel processing technology, material 3Cr2W8, it is characterised in that the process comprises the following steps:
(1)Forge technique:780 DEG C~850 DEG C of preheating temperature, 950 DEG C~210 DEG C of heating-up temperature, initial forging temperature 1050 DEG C~210 DEG C, 850 DEG C~950 DEG C of final forging temperature, slow cooling;When forging, upset pulling repeatedly is no less than 3 times;During forging, temperature > Tip-tap at 1050 DEG C;Beaten again during 970~1050 DEG C of temperature;Tip-tap during 970 DEG C of temperature <;
(2)Annealing process:Heat and be warming up to 860 DEG C with≤90 DEG C/h speed, it is cold to stove with 25-30 DEG C/h speed 750 DEG C, then stove it is cold with 10-15 DEG C/h speed cold 600 DEG C to stove, then air cooling of coming out of the stove;
(3)Roughing;
(4)It is quenched:600-600 DEG C of preheating for the first time, it is incubated 45-60min;Second of 850-850 DEG C of preheating, is incubated 45- 60min, soaking time press 1.5min/mm;1115 DEG C are heated to, oil of then quenching;780 DEG C of temperature, air cooling after tempering;
(5)Half smart car;
(6)Heat treatment:Vacuum hardening, 600~600 DEG C of preheating for the first time, it is incubated 45-60min, second of preheating:840~860 DEG C, 45-60min is incubated, soaking time is calculated by 1.5min/mm;980 DEG C of hardening heat, oil cooling, 15~30 DEG C of medium temperature; It is cooled to the subsequent air cooling of oil temperature;
(7)Finishing;(8)Polishing:Roughness is less than 0.6um;(9)Destressing is tempered:210-150 DEG C of temperature, time 2-2.5h。
CN201610845488.7A 2016-09-24 2016-09-24 A kind of die steel processing technology Withdrawn CN107866660A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610845488.7A CN107866660A (en) 2016-09-24 2016-09-24 A kind of die steel processing technology

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610845488.7A CN107866660A (en) 2016-09-24 2016-09-24 A kind of die steel processing technology

Publications (1)

Publication Number Publication Date
CN107866660A true CN107866660A (en) 2018-04-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610845488.7A Withdrawn CN107866660A (en) 2016-09-24 2016-09-24 A kind of die steel processing technology

Country Status (1)

Country Link
CN (1) CN107866660A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109182699A (en) * 2018-09-30 2019-01-11 中山市东特模具钢材制品有限公司 A kind of processing technology of die steel
CN109202387A (en) * 2018-11-14 2019-01-15 安徽宁国中鼎模具制造有限公司 A kind of thin-wall part processing technology
CN110343817A (en) * 2019-07-30 2019-10-18 河源市兴达源模具有限公司 A kind of automobile die steel processing technology
CN110724806A (en) * 2019-10-17 2020-01-24 江苏福旺重工科技有限公司 Destressing processing technology for reinforcing plate processing

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109182699A (en) * 2018-09-30 2019-01-11 中山市东特模具钢材制品有限公司 A kind of processing technology of die steel
CN109202387A (en) * 2018-11-14 2019-01-15 安徽宁国中鼎模具制造有限公司 A kind of thin-wall part processing technology
CN110343817A (en) * 2019-07-30 2019-10-18 河源市兴达源模具有限公司 A kind of automobile die steel processing technology
CN110724806A (en) * 2019-10-17 2020-01-24 江苏福旺重工科技有限公司 Destressing processing technology for reinforcing plate processing

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Application publication date: 20180403