CN103725831B - The hardening and tempering process of alloy steel pipe - Google Patents
The hardening and tempering process of alloy steel pipe Download PDFInfo
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- CN103725831B CN103725831B CN201310621647.1A CN201310621647A CN103725831B CN 103725831 B CN103725831 B CN 103725831B CN 201310621647 A CN201310621647 A CN 201310621647A CN 103725831 B CN103725831 B CN 103725831B
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Abstract
The invention discloses a kind of hardening and tempering process of alloy steel pipe, comprise the steps: 1) anneal: be warming up to 700-720 DEG C with the speed of 50-55 DEG C/min, insulation 1.5-2.5 hour, then be cooled to 570 DEG C with the speed of 30 DEG C/min, then be cooled to room temperature with the speed of 5 DEG C/min; 2) quench treatment: be warming up to 800-810 DEG C with the speed of 20-25 DEG C/min, insulation 2.5-3.5 hour, adopt concentration to be that the brine sparge of 30-35% is cooled to 250-260 DEG C rapidly with the speed of 250-255 DEG C/s again, then be cooled to 70-80 DEG C with the speed of 15 DEG C/min; 3) temper: be warming up to 700-710 DEG C with the speed of 30-35 DEG C/min, insulation 7-8 hour, then be cooled to room temperature with the speed of 10 DEG C/min.The hardening and tempering process of alloy steel pipe provided by the invention, its make modified after alloy steel pipe plasticity strong, intensity is high, bear pressure large, be out of shape little, hardness is high, wear resistance good.
Description
Technical field
The present invention relates to the hardening and tempering process of alloy steel pipe.
Background technology
At present the plasticity of general alloy steel pipe is weak, intensity is low, bear pressure effect, distortion is large, hardness is low, wear no resistance, and needs a kind ofly to make alloy steel pipe plasticity grow, intensity uprises, bears the hardening and tempering process that pressure becomes large, diminishes, hardness uprises, wear resistance improves.
Summary of the invention
The object of the present invention is to provide a kind of hardening and tempering process of alloy steel pipe, its make modified after alloy steel pipe plasticity strong, intensity is high, bear pressure large, be out of shape little, hardness is high, wear resistance good.
For achieving the above object, technical scheme of the present invention designs a kind of hardening and tempering process of alloy steel pipe, comprises the steps:
1) anneal: be warming up to 700-720 DEG C with the speed of 50-55 DEG C/min, insulation 1.5-2.5 hour, then be cooled to 570 DEG C with the speed of 30 DEG C/min, then be cooled to room temperature with the speed of 5 DEG C/min;
2) quench treatment: be warming up to 800-810 DEG C with the speed of 20-25 DEG C/min, insulation 2.5-3.5 hour, adopt concentration to be that the brine sparge of 30-35% is cooled to 250-260 DEG C rapidly with the speed of 250-255 DEG C/s again, then be cooled to 70-80 DEG C with the speed of 15 DEG C/min;
3) temper: be warming up to 700-710 DEG C with the speed of 30-35 DEG C/min, insulation 7-8 hour, then be cooled to room temperature with the speed of 10 DEG C/min.
Advantage of the present invention and beneficial effect are: the hardening and tempering process providing a kind of alloy steel pipe, its make modified after alloy steel pipe plasticity strong, intensity is high, bear pressure large, be out of shape little, hardness is high, wear resistance good.
Embodiment
Below in conjunction with embodiment, the specific embodiment of the present invention is further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
The technical scheme that the present invention specifically implements is:
Embodiment 1
A hardening and tempering process for alloy steel pipe, comprises the steps:
1) anneal: be warming up to 720 DEG C with the speed of 55 DEG C/min, is incubated 2.5 hours, then is cooled to 570 DEG C with the speed of 30 DEG C/min, then be cooled to room temperature with the speed of 5 DEG C/min;
2) quench treatment: be warming up to 810 DEG C with the speed of 25 DEG C/min, is incubated 3.5 hours, then adopt concentration be 35% brine sparge be cooled to 260 DEG C rapidly with the speed of 255 DEG C/s, then be cooled to 80 DEG C with the speed of 15 DEG C/min;
3) temper: be warming up to 710 DEG C with the speed of 35 DEG C/min, is incubated 8 hours, then is cooled to room temperature with the speed of 10 DEG C/min.
Embodiment 2
A hardening and tempering process for alloy steel pipe, comprises the steps:
1) anneal: be warming up to 700 DEG C with the speed of 50 DEG C/min, is incubated 1.5 hours, then is cooled to 570 DEG C with the speed of 30 DEG C/min, then be cooled to room temperature with the speed of 5 DEG C/min;
2) quench treatment: be warming up to 800 DEG C with the speed of 20 DEG C/min, is incubated 2.5 hours, then adopt concentration be 30% brine sparge be cooled to 250 DEG C rapidly with the speed of 250 DEG C/s, then be cooled to 70 DEG C with the speed of 15 DEG C/min;
3) temper: be warming up to 700 DEG C with the speed of 30 DEG C/min, is incubated 7 hours, then is cooled to room temperature with the speed of 10 DEG C/min.
Embodiment 3
A hardening and tempering process for alloy steel pipe, comprises the steps:
1) anneal: be warming up to 710 DEG C with the speed of 52 DEG C/min, is incubated 2 hours, then is cooled to 570 DEG C with the speed of 30 DEG C/min, then be cooled to room temperature with the speed of 5 DEG C/min;
2) quench treatment: be warming up to 804 DEG C with the speed of 23 DEG C/min, is incubated 3 hours, then adopt concentration be 32% brine sparge be cooled to 257 DEG C rapidly with the speed of 253 DEG C/s, then be cooled to 76 DEG C with the speed of 15 DEG C/min;
3) temper: be warming up to 702 DEG C with the speed of 33 DEG C/min, is incubated 7.5 hours, then is cooled to room temperature with the speed of 10 DEG C/min.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (1)
1. the hardening and tempering process of alloy steel pipe, is characterized in that, comprises the steps:
1) anneal: be warming up to 700-720 DEG C with the speed of 50-55 DEG C/min, insulation 1.5-2.5 hour, then be cooled to 570 DEG C with the speed of 30 DEG C/min, then be cooled to room temperature with the speed of 5 DEG C/min;
2) quench treatment: be warming up to 800-810 DEG C with the speed of 20-25 DEG C/min, insulation 2.5-3.5 hour, adopt concentration to be that the brine sparge of 30-35% is cooled to 250-260 DEG C rapidly with the speed of 250-255 DEG C/s again, then be cooled to 70-80 DEG C with the speed of 15 DEG C/min;
3) temper: be warming up to 700-710 DEG C with the speed of 30-35 DEG C/min, insulation 7-8 hour, then be cooled to room temperature with the speed of 10 DEG C/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310621647.1A CN103725831B (en) | 2013-11-30 | 2013-11-30 | The hardening and tempering process of alloy steel pipe |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310621647.1A CN103725831B (en) | 2013-11-30 | 2013-11-30 | The hardening and tempering process of alloy steel pipe |
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| Publication Number | Publication Date |
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| CN103725831A CN103725831A (en) | 2014-04-16 |
| CN103725831B true CN103725831B (en) | 2016-04-13 |
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| CN201310621647.1A Expired - Fee Related CN103725831B (en) | 2013-11-30 | 2013-11-30 | The hardening and tempering process of alloy steel pipe |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107236856B (en) * | 2017-06-28 | 2018-12-21 | 安徽华飞机械铸锻有限公司 | A kind of seamless steel pipe heat treatment process |
| CN107365899A (en) * | 2017-07-20 | 2017-11-21 | 繁昌县华特机械制造有限公司 | A kind of alloy pipe hardening and tempering process |
| CN107282690A (en) * | 2017-07-20 | 2017-10-24 | 繁昌县华特机械制造有限公司 | A kind of Stainless Steel Capillary pipe processing technique |
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| CN1251786A (en) * | 1999-10-19 | 2000-05-03 | 赵士英 | Technology for manufacturing mandrel used to roll seamless steel tube |
| KR20030002183A (en) * | 2001-06-30 | 2003-01-08 | 기아특수강 주식회사 | High Strength Wear Resistance Steel with Excellent Hardenability and Method of Producing the Same |
| CN101760605A (en) * | 2009-12-17 | 2010-06-30 | 湖南华菱湘潭钢铁有限公司 | High-strength pipe steel heat treatment process |
| CN102367509A (en) * | 2010-11-08 | 2012-03-07 | 江苏诚德钢管股份有限公司 | Method for producing high steel grade corrosion-resistance steel pipe used for offshore petroleum platform |
| CN102676780A (en) * | 2012-05-30 | 2012-09-19 | 江苏华程工业制管股份有限公司 | Hardening and tempering technology of alloy-steel tube |
-
2013
- 2013-11-30 CN CN201310621647.1A patent/CN103725831B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1251786A (en) * | 1999-10-19 | 2000-05-03 | 赵士英 | Technology for manufacturing mandrel used to roll seamless steel tube |
| KR20030002183A (en) * | 2001-06-30 | 2003-01-08 | 기아특수강 주식회사 | High Strength Wear Resistance Steel with Excellent Hardenability and Method of Producing the Same |
| CN101760605A (en) * | 2009-12-17 | 2010-06-30 | 湖南华菱湘潭钢铁有限公司 | High-strength pipe steel heat treatment process |
| CN102367509A (en) * | 2010-11-08 | 2012-03-07 | 江苏诚德钢管股份有限公司 | Method for producing high steel grade corrosion-resistance steel pipe used for offshore petroleum platform |
| CN102676780A (en) * | 2012-05-30 | 2012-09-19 | 江苏华程工业制管股份有限公司 | Hardening and tempering technology of alloy-steel tube |
Non-Patent Citations (1)
| Title |
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| 液压油缸缸筒用钢管调质工艺的改进;韩波;《钢管》;20130228;第42卷(第1期);第4.2、4.3、5节 * |
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| CN103725831A (en) | 2014-04-16 |
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Inventor after: Jiang Zhiyong Inventor before: Xu Xiaodong |
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Effective date of registration: 20170810 Address after: 528061, Guangdong, Foshan province Chancheng District, Nanzhuang Town, apricot head, Wucun Industrial Development Zone, one of the east side of the plant 8 Patentee after: Foshan Tong Guan metal products Co., Ltd. Address before: 215500, No. 8 Lane Village, Wang Zhen Town, Changshou City, Jiangsu, Suzhou Patentee before: CHANGSHU DONGXIN STEEL PIPE CO., LTD. |
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Granted publication date: 20160413 Termination date: 20171130 |
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