CN1540001A - Isothermal spheroidizing technique for H13 steel - Google Patents
Isothermal spheroidizing technique for H13 steel Download PDFInfo
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- CN1540001A CN1540001A CNA2003101104866A CN200310110486A CN1540001A CN 1540001 A CN1540001 A CN 1540001A CN A2003101104866 A CNA2003101104866 A CN A2003101104866A CN 200310110486 A CN200310110486 A CN 200310110486A CN 1540001 A CN1540001 A CN 1540001A
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Abstract
An isothermal spheroidal annealing technology for H13 steel includes preheating at 680 deg.C for 1 hr, heating to 840-890 deg.C, holding the temp for 2-4 hrs, cooling to 710-740 deg.C, holding the temp for 3-4 hrs, cooling to 500 deg.C, and natural cooling. The die made of is has long service life elongated by 1-2 times.
Description
Technical field
The present invention relates to a kind of H
13Steel isothermal spheroidizing technology.
Background technology
China introduces the hot-work die steel H of United States advanced
13Steel isothermal spheroidizing technology ISIH series is as H
10, H
12, H
13Deng, especially with H
13Steel enjoys great popularity.H
13Steel is a kind of New Hot Work Die Steel, be widely used in extrusion mould, die cast metal mould and require high tenacity and cold and hot fatigue resistance working temperature less than 700 ℃ hot-work die spare, be the problem that the metallic substance research worker extremely pays close attention to the work-ing life of how to improve hot-work die always.Extraordinary steel mill such as Daye Steel Mill is to H
13A large amount of outstanding work, the H of production domesticization have been made in the metallurgy development of steel
13Steel the nineties in last century has been produced in batches and has been put goods on the market, and result of use is good.
The metallic substance worker is to H
13The conventional thermal treatment process of steel is gradually improved in groping.But isothermal spheroidizing technology is to H
13Structure of steel and Effect on Performance research is domestic nobody shows any interest in.
H
13Steel conventional annealing technology (sees that " the 3rd of steel alloy handbook, metallurgical industry press are to be warmed up to 840～890 ℃ of insulations 2～4 hours with stove 1983.P116), and stove is chilled to the air cooling of coming out of the stove below 500 ℃, and technology as shown in Figure 2.The H that the conventional annealing explained hereafter is come out
13Steel is lamellar pearlite and massive carbide, and its hot-work die easily causes distortion, causes reduce work-ing life.
Summary of the invention
The object of the present invention is to provide a kind of H
13Steel isothermal spheroidizing technology, it can significantly improve the life-span of hot-work die.
The objective of the invention is to realize: H by following approach
13Steel isothermal spheroidizing technology is before being warmed up to 840～890 ℃ of insulations 2～4 hours, earlier is warmed up to 680 ℃ of preheatings 1 hour with stove, is incubated 3～4 hours after being chilled to 710～740 ℃ with stove earlier before the air cooling of coming out of the stove below 500 ℃.
H disclosed by the invention
13The fine grain alloy carbide that steel isothermal spheroidizing technology can obtain globular pearlite and distribute in the matrix disperse, the fine particle alloy carbide that this disperse distributes in quenching heat-processed, particularly 680 ℃ of section preheatings, dispersity further improves.For a large amount of cores of giving birth to nuclear have been prepared in the final heating of quenching, and avoided causing in the mold cavity the caused thermal stresses of formation temperature gradient to making the mould distortion because of too fast heating, also can make the further homogenizing of heating austenite of quenching simultaneously, thereby the intensity of making, hardness and over-all properties significantly improve.Facts have proved: the H that adopts the isothermal spheroidizing art breading
13The steel hot-work die improves 1～2 times work-ing life, sees Fig. 3, Fig. 4 for details.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described in further detail:
Fig. 1 is H of the present invention
13Steel isothermal spheroidizing process schematic representation;
Fig. 2 is the conventional annealing process schematic representation;
Fig. 3 is H
13Steel quenches in differing temps through isothermal spheroidizing technology and conventional annealing technology, mechanical property and microstructure contrast table during same temperature tempering;
Fig. 4 is that microstructure shown in Figure 3 compares synoptic diagram.
Embodiment
As shown in Figure 1, embodiment one, H of the present invention
13Steel isothermal spheroidizing technology is warmed up to 680 ℃ of preheatings 1 hour with stove, is warmed up to 850 ℃ of insulations 3 hours again, air cooling to 730 ℃ insulation 3.5 hours, the air cooling of coming out of the stove below 500 ℃.
As shown in Figure 1, embodiment two, H of the present invention
13Steel isothermal spheroidizing technology is warmed up to 680 ℃ of preheatings 1 hour with stove, is warmed up to 890 ℃ of insulations 4 hours again, air cooling to 740 ℃ insulation 4 hours, the air cooling of coming out of the stove below 500 ℃.
As shown in Figure 1, embodiment three, H of the present invention
13Steel isothermal spheroidizing technology is warmed up to 680 ℃ of preheatings 1 hour with stove, is warmed up to 840 ℃ of insulations 2 hours again, air cooling to 710 ℃ insulation 3 hours, the air cooling of coming out of the stove below 500 ℃.
Claims (1)
1. H
13Steel isothermal spheroidizing technology, common process is to be warmed up to 840～890 ℃ of insulations 2～4 hours with stove, stove is chilled to the air cooling of coming out of the stove below 500 ℃, it is characterized in that: this technology be warmed up to 840～890 ℃ the insulation 2～4 hours before, earlier be warmed up to 680 ℃ of preheatings 1 hour with stove, elder generation is incubated 3～4 hours after being chilled to 710～740 ℃ with stove before the air cooling of coming out of the stove below 500 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310110486 CN1234883C (en) | 2003-11-01 | 2003-11-01 | Isothermal spheroidizing technique for H13 steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310110486 CN1234883C (en) | 2003-11-01 | 2003-11-01 | Isothermal spheroidizing technique for H13 steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1540001A true CN1540001A (en) | 2004-10-27 |
| CN1234883C CN1234883C (en) | 2006-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200310110486 Expired - Fee Related CN1234883C (en) | 2003-11-01 | 2003-11-01 | Isothermal spheroidizing technique for H13 steel |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102382949A (en) * | 2011-11-21 | 2012-03-21 | 南昌大学 | Isothermal spheroidizing method for 5Cr5MoSiV1 steel for shield cutter |
| CN102676762A (en) * | 2012-06-06 | 2012-09-19 | 芜湖金宇紧固件有限公司 | Spheroidizing annealing furnace and annealing process for steel wire |
| CN102876858A (en) * | 2012-09-20 | 2013-01-16 | 洛阳鼎辉特钢制品股份有限公司 | Spheroidizing annealing process of GCr15 ball bearing steels based on severe-convection protective gas |
| CN103333997A (en) * | 2013-07-02 | 2013-10-02 | 武汉钢铁(集团)公司 | Annealing heat treatment method of H13 die steel |
| CN103484686A (en) * | 2013-09-27 | 2014-01-01 | 北京科技大学 | Method for refining H13 die steel carbides |
| CN104060055A (en) * | 2013-03-18 | 2014-09-24 | 山西太钢不锈钢股份有限公司 | Annealing method of H13 forged materials |
| CN104451048A (en) * | 2014-10-23 | 2015-03-25 | 杭州嘉诺德金属冷拉有限公司 | Anti-cracking boron steel isothermal spheroidizing annealing method |
| CN104726659A (en) * | 2015-02-10 | 2015-06-24 | 中原特钢股份有限公司 | Thermal treatment process for improving microscopic coarse grains and microstructures of H13 forged piece |
| CN105950839A (en) * | 2016-06-20 | 2016-09-21 | 安徽省瑞杰锻造有限责任公司 | Cr12MoV spheroidizing annealing technology |
| CN106811580A (en) * | 2017-02-13 | 2017-06-09 | 钢铁研究总院 | A kind of annealing process of H13 hot die steels |
| CN108823381A (en) * | 2018-07-12 | 2018-11-16 | 河钢股份有限公司 | A kind of heat treatment process improving H13 hot-work die steel forging material structural homogenity |
| CN110317934A (en) * | 2019-06-20 | 2019-10-11 | 河钢股份有限公司 | Improve the heat treatment process of H13 steel annealed structure uniformity |
| CN111593190A (en) * | 2020-06-04 | 2020-08-28 | 江苏联峰实业有限公司 | Heat treatment process of alloy spring steel |
-
2003
- 2003-11-01 CN CN 200310110486 patent/CN1234883C/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102382949B (en) * | 2011-11-21 | 2015-10-28 | 南昌大学 | A kind of isothermal spheroidizing method of shield cutter steel 5Cr5MoSiV1 |
| CN102382949A (en) * | 2011-11-21 | 2012-03-21 | 南昌大学 | Isothermal spheroidizing method for 5Cr5MoSiV1 steel for shield cutter |
| CN102676762A (en) * | 2012-06-06 | 2012-09-19 | 芜湖金宇紧固件有限公司 | Spheroidizing annealing furnace and annealing process for steel wire |
| CN102876858A (en) * | 2012-09-20 | 2013-01-16 | 洛阳鼎辉特钢制品股份有限公司 | Spheroidizing annealing process of GCr15 ball bearing steels based on severe-convection protective gas |
| CN102876858B (en) * | 2012-09-20 | 2014-05-14 | 洛阳鼎辉特钢制品股份有限公司 | Spheroidizing annealing process of GCr15 ball bearing steels based on severe-convection protective gas |
| CN104060055A (en) * | 2013-03-18 | 2014-09-24 | 山西太钢不锈钢股份有限公司 | Annealing method of H13 forged materials |
| CN103333997A (en) * | 2013-07-02 | 2013-10-02 | 武汉钢铁(集团)公司 | Annealing heat treatment method of H13 die steel |
| CN103333997B (en) * | 2013-07-02 | 2014-12-10 | 武汉钢铁(集团)公司 | Annealing heat treatment method of H13 die steel |
| CN103484686A (en) * | 2013-09-27 | 2014-01-01 | 北京科技大学 | Method for refining H13 die steel carbides |
| CN104451048A (en) * | 2014-10-23 | 2015-03-25 | 杭州嘉诺德金属冷拉有限公司 | Anti-cracking boron steel isothermal spheroidizing annealing method |
| CN104726659A (en) * | 2015-02-10 | 2015-06-24 | 中原特钢股份有限公司 | Thermal treatment process for improving microscopic coarse grains and microstructures of H13 forged piece |
| CN105950839A (en) * | 2016-06-20 | 2016-09-21 | 安徽省瑞杰锻造有限责任公司 | Cr12MoV spheroidizing annealing technology |
| CN106811580A (en) * | 2017-02-13 | 2017-06-09 | 钢铁研究总院 | A kind of annealing process of H13 hot die steels |
| CN108823381A (en) * | 2018-07-12 | 2018-11-16 | 河钢股份有限公司 | A kind of heat treatment process improving H13 hot-work die steel forging material structural homogenity |
| CN110317934A (en) * | 2019-06-20 | 2019-10-11 | 河钢股份有限公司 | Improve the heat treatment process of H13 steel annealed structure uniformity |
| CN111593190A (en) * | 2020-06-04 | 2020-08-28 | 江苏联峰实业有限公司 | Heat treatment process of alloy spring steel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1234883C (en) | 2006-01-04 |
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