CN105986074A - Die steel processing technology - Google Patents
Die steel processing technology Download PDFInfo
- Publication number
- CN105986074A CN105986074A CN201510047003.5A CN201510047003A CN105986074A CN 105986074 A CN105986074 A CN 105986074A CN 201510047003 A CN201510047003 A CN 201510047003A CN 105986074 A CN105986074 A CN 105986074A
- Authority
- CN
- China
- Prior art keywords
- temperature
- preheating
- cold
- time
- 60min
- 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
Links
Abstract
The invention discloses a die steel processing technology, and a material is 3Cr2W8. The technology comprises the following steps: 1) forging; 2) spheroidizing annealing; 3) performing rough machining; 4) tempering; 5) performing half finish turning; 6) performing heat treatment; 7) performing finish machining; 8) polishing; and 9) releasing stress for tempering. By standarding the requirement, parameter condition and attentions of each step in the die steel processing technology, the strength and toughness are increased, and premature broken and failure of the die are prevented.
Description
Technical field
The invention belongs to mould steel processing technique field, specifically a kind of mould steel processing technique.
Background technology
3Cr2W8 steel is one of current domestic widely used cold work die steel.This steel has the advantages such as quenching degree is good, hardness is high and wear-resisting, heat treatment deformation is little, is usually used in making those and bears the cold-working mould that heavy load, production lot are big, complex-shaped, such as cold punching, impressing, cold-heading, cold extruding die etc..But it is big that the significant drawback of this steel is fragility, frequently results in the initial failure of mould.Therefore, how to improve its obdurability, prevent mould premature failure to lose efficacy, be this steel user be frequently encountered by and need solve problem.Mould invalidation analysis shows, heat treatment factor impact maximum, accounts for 50%, and the defect deposited in view of existing technique, in order to ensure product quality, it is necessary to be further improved.
Summary of the invention
The deficiency existed in view of prior art, it is an object of the invention to provide a kind of mould steel processing technique, can improve its obdurability, prevent mould premature failure to lose efficacy.
A kind of mould steel processing technique, material is 3Cr2W8, it is characterised in that this process comprises the following steps:
(1) technique is forged: preheating temperature 760 DEG C～800 DEG C, heating-up temperature 1000 DEG C～1100 DEG C, initial forging temperature 1050 DEG C～1100 DEG C, final forging temperature 850 DEG C～900 DEG C, slow cooling；When forging, the most upset pulling is no less than 3 times；During forging, tip-tap during temperature ＞ 1050 DEG C；Temperature 950～beat again when 1050 DEG C；Tip-tap during temperature ＜ 950 DEG C；
(2) annealing process: heating is also warming up to 860 DEG C with the speed of≤100 DEG C/h, and with cold 750 DEG C of 25-30 DEG C/h speed to stove, then stove is cold with cold 500 DEG C of 10-20 DEG C/h speed to stove, then air cooling of coming out of the stove；
(3) roughing；
(4) quenched: preheating 550-600 DEG C for the first time, it is incubated 45-60min；Second time preheating 800-850 DEG C, is incubated 45-60min, and temperature retention time presses 1.5min/mm；It is heated to 1120 DEG C, oil of then quenching；Temperature 760 DEG C, air cooling after tempering；
(5) half finish turnings；
(6) heat treatment: vacuum hardening, for the first time preheating 500～550 DEG C, be incubated 45-60min, second time preheating: 840～860 DEG C, be incubated 45-60min, and temperature retention time is pressed 1.5min/mm and calculated；Hardening heat 980 DEG C, oil is cold, medium temperature 20～30 DEG C；It is cooled to oil temperature air cooling subsequently；
(7) polish；
(8) polishing: roughness is less than 0.8um；
(9) destressing tempering: temperature 190-200 DEG C, time 2-2.5h.
A kind of mould steel processing technique of the present invention, by the requirement of specification each step, Parameter Conditions and points for attention, can improve its obdurability, prevent mould premature failure to lose efficacy.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described, and its operating procedure is as follows:
A kind of mould steel processing technique, material is 3Cr2W8, and this process comprises the following steps:
(1) technique is forged: preheating temperature 760 DEG C～800 DEG C, heating-up temperature 1000 DEG C～1100 DEG C, initial forging temperature 1050 DEG C～1100 DEG C, final forging temperature 850 DEG C～900 DEG C, slow cooling；When forging, the most upset pulling is no less than 3 times；During forging, tip-tap during temperature ＞ 1050 DEG C；Temperature 950～beat again when 1050 DEG C；Tip-tap during temperature ＜ 950 DEG C；
(2) annealing process: heating is also warming up to 860 DEG C with the speed of≤100 DEG C/h, and with cold 750 DEG C of 25-30 DEG C/h speed to stove, then stove is cold with cold 500 DEG C of 10-20 DEG C/h speed to stove, then air cooling of coming out of the stove；
(3) roughing；
(4) quenched: preheating 550-600 DEG C for the first time, it is incubated 45-60min；Second time preheating 800-850 DEG C, is incubated 45-60min, and temperature retention time presses 1.5min/mm；It is heated to 1120 DEG C, oil of then quenching；Temperature 760 DEG C, air cooling after tempering；
(5) half finish turnings；
(6) heat treatment: vacuum hardening, for the first time preheating 500～550 DEG C, be incubated 45-60min, second time preheating: 840～860 DEG C, be incubated 45-60min, and temperature retention time is pressed 1.5min/mm and calculated；Hardening heat 980 DEG C, oil is cold, medium temperature 20～30 DEG C；It is cooled to oil temperature air cooling subsequently；
(7) polish；
(8) polishing: roughness is less than 0.8um；
(9) destressing tempering: temperature 190-200 DEG C, time 2-2.5h.
The preferred embodiment of the present invention described in detail above.It is to be understood that those of ordinary skill in the art just can make many modifications and variations according to the design of the present invention without creative work.Therefore, all technical staff in the art are the most on the basis of existing technology by logic minute analysis, reasoning or the available technical scheme of limited experiment, the protection domain being all defined in the patent claims.
Claims (1)
1. a mould steel processing technique, material is 3Cr2W8, it is characterised in that this process comprises the following steps:
(1) technique is forged: preheating temperature 760 DEG C～800 DEG C, heating-up temperature 1000 DEG C～1100 DEG C, initial forging temperature 1050 DEG C～1100 DEG C, final forging temperature 850 DEG C～900 DEG C, slow cooling；When forging, the most upset pulling is no less than 3 times；During forging, tip-tap during temperature ＞ 1050 DEG C；Temperature 950～beat again when 1050 DEG C；Tip-tap during temperature ＜ 950 DEG C；
(2) annealing process: heating is also warming up to 860 DEG C with the speed of≤100 DEG C/h, and with cold 750 DEG C of 25-30 DEG C/h speed to stove, then stove is cold with cold 500 DEG C of 10-20 DEG C/h speed to stove, then air cooling of coming out of the stove；
(3) roughing；
(4) quenched: preheating 550-600 DEG C for the first time, it is incubated 45-60min；Second time preheating 800-850 DEG C, is incubated 45-60min, and temperature retention time presses 1.5min/mm；It is heated to 1120 DEG C, oil of then quenching；Temperature 760 DEG C, air cooling after tempering；
(5) half finish turnings；
(6) heat treatment: vacuum hardening, for the first time preheating 500～550 DEG C, be incubated 45-60min, second time preheating: 840～860 DEG C, be incubated 45-60min, and temperature retention time is pressed 1.5min/mm and calculated；Hardening heat 980 DEG C, oil is cold, medium temperature 20～30 DEG C；It is cooled to oil temperature air cooling subsequently；
(7) polish；
(8) polishing: roughness is less than 0.8um；
(9) destressing tempering: temperature 190-200 DEG C, time 2-2.5h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510047003.5A CN105986074A (en) | 2015-01-30 | 2015-01-30 | Die steel processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510047003.5A CN105986074A (en) | 2015-01-30 | 2015-01-30 | Die steel processing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105986074A true CN105986074A (en) | 2016-10-05 |
Family
ID=57035133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510047003.5A Pending CN105986074A (en) | 2015-01-30 | 2015-01-30 | Die steel processing technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105986074A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106312485A (en) * | 2016-11-09 | 2017-01-11 | 安徽联盟模具工业股份有限公司 | High-precision long-service-life bending machine lower die manufacturing method |
| CN107297395A (en) * | 2017-08-22 | 2017-10-27 | 玉环普天单向器有限公司 | A kind of original gap method of cold extrusion die |
| 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 |
| CN109295288A (en) * | 2018-10-15 | 2019-02-01 | 东莞理工学院 | A kind of metal works hydrodynamics technique |
| CN109402351A (en) * | 2018-10-15 | 2019-03-01 | 东莞理工学院 | A kind of metal works processing method |
| 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 |
| CN110592330A (en) * | 2019-08-30 | 2019-12-20 | 合肥江航飞机装备股份有限公司 | Processing method of 30CrMnSiA high-strength steel |
| 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 |
| CN111893395A (en) * | 2020-06-09 | 2020-11-06 | 黄石市鑫楚精密模具股份有限公司 | High-strength die steel and heat treatment method thereof |
| CN112372255A (en) * | 2020-11-30 | 2021-02-19 | 贵州精立航太科技有限公司 | Processing technology of damping bowl |
| CN112372244A (en) * | 2020-11-02 | 2021-02-19 | 贵州航天电子科技有限公司 | 2A12 aluminum alloy cover plate processing method |
| CN114310209A (en) * | 2021-12-30 | 2022-04-12 | 东台威达鑫精密模具有限公司 | Machining process of integral clamp spring mold |
| CN117660734A (en) * | 2024-01-31 | 2024-03-08 | 成都先进金属材料产业技术研究院股份有限公司 | Cold work die steel surface strengthening treatment method and cold work die steel |
-
2015
- 2015-01-30 CN CN201510047003.5A patent/CN105986074A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106312485A (en) * | 2016-11-09 | 2017-01-11 | 安徽联盟模具工业股份有限公司 | High-precision long-service-life bending machine lower die manufacturing method |
| CN107297395A (en) * | 2017-08-22 | 2017-10-27 | 玉环普天单向器有限公司 | A kind of original gap method of cold extrusion die |
| CN107297395B (en) * | 2017-08-22 | 2019-07-23 | 玉环普天单向器有限公司 | A kind of original gap method of cold extrusion die |
| 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 |
| CN109295288A (en) * | 2018-10-15 | 2019-02-01 | 东莞理工学院 | A kind of metal works hydrodynamics technique |
| CN109402351A (en) * | 2018-10-15 | 2019-03-01 | 东莞理工学院 | A kind of metal works processing method |
| 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 |
| CN110592330A (en) * | 2019-08-30 | 2019-12-20 | 合肥江航飞机装备股份有限公司 | Processing method of 30CrMnSiA high-strength steel |
| 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 |
| CN111893395A (en) * | 2020-06-09 | 2020-11-06 | 黄石市鑫楚精密模具股份有限公司 | High-strength die steel and heat treatment method thereof |
| CN112372244A (en) * | 2020-11-02 | 2021-02-19 | 贵州航天电子科技有限公司 | 2A12 aluminum alloy cover plate processing method |
| CN112372244B (en) * | 2020-11-02 | 2023-02-28 | 贵州航天电子科技有限公司 | Processing method of 2A12 aluminum alloy cover plate |
| CN112372255A (en) * | 2020-11-30 | 2021-02-19 | 贵州精立航太科技有限公司 | Processing technology of damping bowl |
| CN112372255B (en) * | 2020-11-30 | 2021-10-12 | 贵州精立航太科技有限公司 | Processing technology of damping bowl |
| CN114310209A (en) * | 2021-12-30 | 2022-04-12 | 东台威达鑫精密模具有限公司 | Machining process of integral clamp spring mold |
| CN117660734A (en) * | 2024-01-31 | 2024-03-08 | 成都先进金属材料产业技术研究院股份有限公司 | Cold work die steel surface strengthening treatment method and cold work die steel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105986074A (en) | Die steel processing technology | |
| CN101403032B (en) | Thermal treatment process for quick cutting steel composite roll | |
| CN102581145B (en) | Method for manufacturing high-hardness and high-abrasion-resistant pre-bending machine lower die | |
| CN104294168B (en) | A kind of high anti-contact fatigue cold-rolling intermediate roll and manufacture method thereof | |
| CN102284835B (en) | Method for producing 10.9-class vehicle bolt of above M12 | |
| CN107866660A (en) | A kind of die steel processing technology | |
| CN105643219A (en) | Machining technology for gear shaft | |
| CN105108457A (en) | Processing method of overall passive plate | |
| CN104440009A (en) | Iron sheet cutter manufacturing method | |
| CN105945537A (en) | Forging technology for idle gear for automobile engine | |
| CN102441773A (en) | Hot precision forging and cold precision shaping compound process for spiral bevel gear | |
| CN105132637A (en) | Two-liquid quenching tempering local strengthening heat treatment technology for oil press 5CrMnMo upper die | |
| CN105983843A (en) | Reducer gear processing process | |
| CN110872678A (en) | Processing method of 20CrMnTi brake shoe roller shaft | |
| CN107964578A (en) | A kind of automobile die steel processing technology | |
| CN105695703A (en) | Heat treatment process for die steel | |
| CN107442721A (en) | A kind of warm and hot forging technique of mould | |
| CN103846633A (en) | Method of forging idler shaft for gearbox | |
| CN105648177A (en) | Tool steel heat treatment process | |
| CN105215641A (en) | The forging processing method of locking bolt | |
| CN104525568A (en) | Machining method of carburized bearing steel seamless steel tube | |
| CN110872679A (en) | Processing method of 5CrNiMo brake shoe roller shaft | |
| CN103789688A (en) | Heat treatment method of cold work die steel used for blanking die | |
| CN104404534A (en) | Heat treatment process for bearing ring cold extrusion mould | |
| CN104227363A (en) | Turning tool production steps favorable for martensite formation during heat treatment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161005 |