CN102876860A - Heat treatment method of novel alloy steel hollow car axle material - Google Patents
Heat treatment method of novel alloy steel hollow car axle material Download PDFInfo
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- CN102876860A CN102876860A CN2012103845814A CN201210384581A CN102876860A CN 102876860 A CN102876860 A CN 102876860A CN 2012103845814 A CN2012103845814 A CN 2012103845814A CN 201210384581 A CN201210384581 A CN 201210384581A CN 102876860 A CN102876860 A CN 102876860A
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- car axle
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- 229910000851 Alloy steel Inorganic materials 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000000463 material Substances 0.000 title claims abstract description 16
- 238000010438 heat treatment Methods 0.000 title abstract description 11
- 238000010791 quenching Methods 0.000 claims abstract description 4
- 238000005496 tempering Methods 0.000 claims abstract description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 238000002203 pretreatment Methods 0.000 claims description 2
- 230000000171 quenching effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 230000008676 import Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000007669 thermal treatment Methods 0.000 description 3
- 101100346171 Arabidopsis thaliana MORC3 gene Proteins 0.000 description 2
- 101100168604 Candida albicans (strain SC5314 / ATCC MYA-2876) CRH12 gene Proteins 0.000 description 2
- 101100168607 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) UTR2 gene Proteins 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- PHKJVUUMSPASRG-UHFFFAOYSA-N 4-[4-chloro-5-(2,6-dimethyl-8-pentan-3-ylimidazo[1,2-b]pyridazin-3-yl)-1,3-thiazol-2-yl]morpholine Chemical compound CC=1N=C2C(C(CC)CC)=CC(C)=NN2C=1C(=C(N=1)Cl)SC=1N1CCOCC1 PHKJVUUMSPASRG-UHFFFAOYSA-N 0.000 description 1
- 101100346177 Arabidopsis thaliana MORC5 gene Proteins 0.000 description 1
- 101100346179 Arabidopsis thaliana MORC7 gene Proteins 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 102100021752 Corticoliberin Human genes 0.000 description 1
- 101000895481 Homo sapiens Corticoliberin Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009661 fatigue test Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The invention belongs to the technical field of heat treatment processes of alloy steel hollow car axle materials for high-speed passenger trains and particularly relates to a heat treatment method of a novel alloy steel hollow car axle material. The heat treatment method is characterized by pre-heating novel alloy steel with shaft blank sizes at the temperature of 910-950 DEG C, quenching the novel alloy steel at the temperature of 900-940 DEG and tempering the novel alloy steel at the temperature of 620-670 DEG C. The heat treatment method has the advantages that the developed novel alloy steel hollow car axle material for the high-speed passenger trains is domestically and independently developed, mechanical properties of axles which are treated by a heat treatment process matched with the material all exceed requirements of the European hollow car axle standard EN13261, the axles are good in obdurability matching, especially, high in smooth specimen fatigue strength and notch specimen fatigue strength and excellent in low temperature impact toughness, so that the axles can be used under various domestic weather conditions. According to the heat treatment method of the novel alloy steel hollow car axle material, heat treatment process technical assurance is provided for finally producing novel alloy steel hollow car axles at the speed of 200km/h-350km/h.
Description
Technical field
The invention belongs to high-speed railway passenger the thermal treatment process technology field of alloy steel hollow axle material, particularly a kind of heat treating method of novel alloy steel hole-bored axle from end to end material.
Background technology
In recent years, speed per hour surpasses the high-speed railway of 200 km in China's fast development, and it not only makes the development of traditional railway industry, has also driven other related industrieies, has promoted the development of Chinese national economy.Up to now, high speed (more than 200 kilometers/hour) the passenger vehicle axletree of Chinese Railway operation has Four types: CRH1, CRH2, CRH3 and CRH5, main dependence on import.Wherein the CRH2 type is from Japanese import, employing be the technological line of carbon steel and surface Hardening Treatment; Other several types are from European import, employing be steel alloy EA4T and the 30NiCrMoV12 of modifier treatment, although these two kinds of steel have been provided Chemical Composition and mechanical property requirement, all do not provide the crucial thermal treatment process technology of making axletree.Chinese patent CN101857914A and CN102108436A have provided this two kinds of Heat Treatment Of Steel techniques, and axletree performance after treatment all surpasses respectively the performance of European similar alloy steel hole-bored axle from end to end.The technology of CN101857914A is used aborning.
Summary of the invention
For comprehensive production domesticization of high ferro technology, the invention provides a kind of heat treating method of novel alloy steel hole-bored axle from end to end material.
A kind of heat treating method of novel alloy steel hole-bored axle from end to end material, its concrete steps are as follows:
(1) pre-treatment, temperature is: 910 ℃ ~ 950 ℃, be incubated 3 h ~ 5 h, air cooling;
(2) quench, temperature is: 900 ℃ ~ 940 ℃, be incubated 3 h ~ 5 h, shrend;
(3) tempering, temperature is: 620 ℃ ~ 670 ℃, be incubated 3 h ~ 7 h, air cooling.
The content of C is 0.24 wt% ~ 0.36 wt% in the employed novel alloy steel (GZ2), the content of Si is 0.25 wt% ~ 0.45 wt%, the content of Mn is 0.50 wt% ~ 0.85 wt%, the content of P is for being not more than 0.01 wt%, the content of S is for being not more than 0.004 wt%, the content of Cr is 0.95 wt% ~ 1.20 wt%, the content of Mo is 0.20 wt% ~ 0.45 wt%, the content of Ni is for being not more than 0.50 wt%, the content of Cu is for being not more than 0.40 wt%, the content of V is 0.03 wt% ~ 0.08 wt%, and other composition is Fe.
Beneficial effect of the present invention is:
Its outstanding feature is to adopt the ortho-water medium to quench, and the water temperature allowed band is wide, is fit to industrialized production.The mechanical property of this novel alloy steel hole-bored axle from end to end is better than European import hole-bored axle from end to end (table 2), particularly Specimens fatigue strength, notched specimen fatigue strength (table 2) and low-temperature impact toughness (Fig. 3) excellence are so that this kind axletree can use under the various weather condition of China.
Description of drawings
Fig. 1 is that axletree axle body radius of the present invention 1/2 place organizes electromicroscopic photograph;
Fig. 2 is the breach geometric format synoptic diagram of axletree material notch fatigue test of the present invention;
Fig. 3 is the impelling strength curve of the present invention under differing temps, and wherein Fig. 3 a is the transverse impact toughness curve, and Fig. 3 b is the tough linearity curve of impact of collision;
Fig. 4 is process flow sheet of the present invention.
Embodiment
The invention provides a kind of heat treating method of novel alloy steel hole-bored axle from end to end material, the present invention will be further described below in conjunction with the drawings and specific embodiments.
Adopt the inventive method to process series of new alloy steel hollow axle material, concrete grammar sees Table 1.
Table 1 heat treatment parameter table
The inventive method is easy to control, is fit to suitability for industrialized production, and the grain fineness number of used novel alloy steel hole-bored axle from end to end shaft blank after above-mentioned thermal treatment process is processed is 8 ~ 9 grades, and the microtexture at its axle body radius 1/2 place is seen Fig. 1; Its intensity, plasticity, toughness and fatigue property see Table 2, and all above the requirement of European high speed hole-bored axle from end to end standard EN 13261, in the situation that intensity improves, plasticity still meets the requirements, and good combination of strength and toughness is arranged.The axletree of this kind material manufacturing it is to be noted especially Specimens fatigue strength, notched specimen (breach is seen Fig. 2 how much) fatigue strength and low-temperature impact toughness (Fig. 3) excellence, so that can use under the various weather condition of China.
Table 2 axle body radius 1/2 place's mechanical property table
Claims (1)
1. the heat treating method of a novel alloy steel hole-bored axle from end to end material is characterized in that concrete steps are as follows:
(1) pre-treatment, temperature is: 910 ℃ ~ 950 ℃, be incubated 3 h ~ 5 h, air cooling;
(2) quench, temperature is: 900 ℃ ~ 940 ℃, be incubated 3 h ~ 5 h, shrend;
(3) tempering, temperature is: 620 ℃ ~ 670 ℃, be incubated 3 h ~ 7 h, air cooling.
The content of C is 0.24 wt% ~ 0.36 wt% in the employed novel alloy steel, the content of Si is 0.25 wt% ~ 0.45 wt%, the content of Mn is 0.50 wt% ~ 0.85 wt%, the content of P is for being not more than 0.01 wt%, the content of S is for being not more than 0.004 wt%, the content of Cr is 0.95 wt% ~ 1.20 wt%, the content of Mo is 0.20 wt% ~ 0.45 wt%, the content of Ni is for being not more than 0.50 wt%, the content of Cu is for being not more than 0.40 wt%, the content of V is 0.03 wt% ~ 0.08 wt%, and other composition is Fe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210384581.4A CN102876860B (en) | 2012-10-11 | 2012-10-11 | Heat treatment method of novel alloy steel hollow car axle material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210384581.4A CN102876860B (en) | 2012-10-11 | 2012-10-11 | Heat treatment method of novel alloy steel hollow car axle material |
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| CN102876860A true CN102876860A (en) | 2013-01-16 |
| CN102876860B CN102876860B (en) | 2014-09-24 |
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| CN201210384581.4A Expired - Fee Related CN102876860B (en) | 2012-10-11 | 2012-10-11 | Heat treatment method of novel alloy steel hollow car axle material |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104178699A (en) * | 2013-05-21 | 2014-12-03 | 通用电气公司 | A martensitic alloy component and process of forming a martensitic alloy component |
| CN104233109A (en) * | 2014-10-11 | 2014-12-24 | 马钢(集团)控股有限公司 | Heat-treating process of high-speed train axle containing niobium and titanium |
| CN104372155A (en) * | 2014-10-11 | 2015-02-25 | 马钢(集团)控股有限公司 | Heat treatment process of high-speed train axle containing niobium |
| CN104513893A (en) * | 2013-09-26 | 2015-04-15 | 长春轨道客车装备有限责任公司 | Heat treatment method of EA4T steel axle |
| CN105821304A (en) * | 2016-06-07 | 2016-08-03 | 马鞍山钢铁股份有限公司 | Niobium and titanium containing steel for motor train unit axle and heat processing technology thereof |
| CN105821309A (en) * | 2016-06-07 | 2016-08-03 | 马鞍山钢铁股份有限公司 | Heat processing technology for vanadium-containing steel for motor train unit axle |
| CN105838989A (en) * | 2016-06-07 | 2016-08-10 | 马鞍山钢铁股份有限公司 | Heat treatment process of niobium-containing steel for axles of motor train unit |
| CN105951000A (en) * | 2016-07-13 | 2016-09-21 | 马鞍山钢铁股份有限公司 | Steel for vanadium/niobium-contained motor train unit axle and heat treatment process thereof |
| CN110952026A (en) * | 2019-11-18 | 2020-04-03 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | Axle steel, preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001234277A (en) * | 2000-02-23 | 2001-08-28 | Nippon Steel Corp | High strength steel excellent in fatigue characteristic and producing method therefor |
| CN101857914A (en) * | 2010-05-24 | 2010-10-13 | 清华大学 | Heat treatment method for materials of 25CrMo alloy steel hollow car axle for high-speed railway passenger trains |
-
2012
- 2012-10-11 CN CN201210384581.4A patent/CN102876860B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001234277A (en) * | 2000-02-23 | 2001-08-28 | Nippon Steel Corp | High strength steel excellent in fatigue characteristic and producing method therefor |
| CN101857914A (en) * | 2010-05-24 | 2010-10-13 | 清华大学 | Heat treatment method for materials of 25CrMo alloy steel hollow car axle for high-speed railway passenger trains |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104178699A (en) * | 2013-05-21 | 2014-12-03 | 通用电气公司 | A martensitic alloy component and process of forming a martensitic alloy component |
| CN104513893A (en) * | 2013-09-26 | 2015-04-15 | 长春轨道客车装备有限责任公司 | Heat treatment method of EA4T steel axle |
| CN104233109A (en) * | 2014-10-11 | 2014-12-24 | 马钢(集团)控股有限公司 | Heat-treating process of high-speed train axle containing niobium and titanium |
| CN104372155A (en) * | 2014-10-11 | 2015-02-25 | 马钢(集团)控股有限公司 | Heat treatment process of high-speed train axle containing niobium |
| CN105821304A (en) * | 2016-06-07 | 2016-08-03 | 马鞍山钢铁股份有限公司 | Niobium and titanium containing steel for motor train unit axle and heat processing technology thereof |
| CN105821309A (en) * | 2016-06-07 | 2016-08-03 | 马鞍山钢铁股份有限公司 | Heat processing technology for vanadium-containing steel for motor train unit axle |
| CN105838989A (en) * | 2016-06-07 | 2016-08-10 | 马鞍山钢铁股份有限公司 | Heat treatment process of niobium-containing steel for axles of motor train unit |
| CN105821304B (en) * | 2016-06-07 | 2018-07-03 | 马鞍山钢铁股份有限公司 | A kind of axle of motor train unit steel of titanium containing niobium and its heat treatment process |
| CN105838989B (en) * | 2016-06-07 | 2018-07-03 | 马鞍山钢铁股份有限公司 | A kind of steel heat treatment process of axle of motor train unit containing niobium |
| CN105951000A (en) * | 2016-07-13 | 2016-09-21 | 马鞍山钢铁股份有限公司 | Steel for vanadium/niobium-contained motor train unit axle and heat treatment process thereof |
| CN110952026A (en) * | 2019-11-18 | 2020-04-03 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | Axle steel, preparation method and application thereof |
| CN110952026B (en) * | 2019-11-18 | 2021-05-07 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | Axle steel, preparation method and application thereof |
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| CN102876860B (en) | 2014-09-24 |
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Owner name: JINXI AXLE CO., LTD. Effective date: 20140527 |
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Inventor after: Zhu Jing Inventor after: Mu Ensheng Inventor after: Zhong Tayan Inventor after: Gu Jialin Inventor after: Liu Shuhua Inventor after: Zhou Huihua Inventor after: Wu Haiying Inventor after: Pan Tao Inventor after: Ru Jilai Inventor after: Li Zhaozhi Inventor after: Shi Huiji Inventor before: Zhu Jing Inventor before: Zhong Tayan Inventor before: Gu Jialin Inventor before: Liu Shuhua Inventor before: Zhou Huihua Inventor before: Pan Tao Inventor before: Ru Jilai Inventor before: Shi Huiji Inventor before: Lin Jizhong Inventor before: Mu Ensheng |
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Free format text: CORRECT: INVENTOR; FROM: ZHU JING GU JIALIN LIU SHUHUA ZHOU HUIHUA PAN TAO NU JILAI SHI HUIJI LIN JIZHONG MU ENSHENG ZHONG XIAOYAN TO: ZHU JING GU JIALIN LIU SHUHUA ZHOU HUIHUA WU HAIYING PAN TAO NU JILAI LI ZHAOZHI SHI HUIJI MU ENSHENG ZHONG XIAOYAN |
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Effective date of registration: 20140527 Address after: 100084 Haidian District 100084-82 mailbox Beijing Applicant after: TSINGHUA University Applicant after: JINXI ALEX CO.,LTD. Address before: 100084 Haidian District 100084-82 mailbox Beijing Applicant before: Tsinghua University |
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