CN102618711A - Heat treatment technology for stainless steel bearing rings - Google Patents
Heat treatment technology for stainless steel bearing rings Download PDFInfo
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- CN102618711A CN102618711A CN201110350997XA CN201110350997A CN102618711A CN 102618711 A CN102618711 A CN 102618711A CN 201110350997X A CN201110350997X A CN 201110350997XA CN 201110350997 A CN201110350997 A CN 201110350997A CN 102618711 A CN102618711 A CN 102618711A
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Abstract
The invention discloses a heat treatment technology for stainless steel bearing rings, and the technology comprises the steps of: quenching; cryogenic treatment; first tempering; second tempering; and third tempering. By controlling the time and temperature of the heat treatment technology for stainless steel bearing rings and selecting heat treatment equipment, the invention employs three tempering processes, improves the strength, hardness, wear resistance, as well as dimensional stability, and prevents oxidation, decarburization and corrosion of ring surfaces, thus endowing the stainless steel bearing rings with high corrosion resisting, high temperature resisting and low temperature resisting abilities.
Description
Technical field
The present invention relates to the thermal treatment process field, particularly relate to a kind of stainless steel shaft bearing ring thermal treatment process.
Background technology
Bearing is a kind of very important component in the contemporary mechanical means.Its major function is the supported mechanical rotator, in order to the mechanical load frictional coefficient of reduction equipment in transmission process.
Find putting into practice in the use in a large number,, in use have certain limitation though the mechanical property of plain bearing is fine; For example at rugged environment, when using in the special industry, the life-span is very short; Performance does not reach request for utilization; It is bad that it mainly shows as corrosion resistance, causes the bearing corrosion and lose function, simultaneously environment for use caused pollution.
In order to address this problem, developed stainless steel bearing, it is mainly used in the comparatively abominable fields of Working environment such as medicine equipment, cryogenic engineering, opticinstrument, high-speed machine tool, high-speed electric expreess locomotive, printing machinery, food processing machinery.In the course of the work, stainless steel bearing requires working stability, and noise is little, and is corrosion-resistant.Compare with plain bearing, not only on the material remarkable advantages is arranged, and on technology, in the control of precision, all than strict many of plain bearing, thermal treatment process is again the most important thing.
How to study a kind of stainless steel shaft bearing ring thermal treatment process of invention; Improve intensity, hardness, wear resistance, the size stability of lasso; Prevent lasso surface oxidation and decarbonization and corrosion, making it have high corrosion-resistant, high temperature resistant and low temperature resistant ability is problem to be solved by this invention.
Summary of the invention
The technical problem that the present invention mainly solves provides a kind of stainless steel shaft bearing ring thermal treatment process; Intensity, hardness, wear resistance, the size stability of lasso have been improved; Prevented lasso surface oxidation and decarbonization and corrosion, made it have high corrosion-resistant, high temperature resistant and low temperature resistant ability.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of stainless steel shaft bearing ring thermal treatment process is provided, may further comprise the steps:
1) quenches: stainless steel shaft bearing ring after the turning is heated to 845 ~ 855 ℃; Preheating 10 ~ 18 minutes; Be warming up to 1050 ~ 1070 ℃ again and carry out quenching and preserving heat, every millimeter wall thickness soaking time is 1 ~ 1.5 minute, and heat-eliminating medium is 10 ° or 20 ° of machinery oil of 30 ℃ ~ 60 ℃;
2) sub-zero treatment: the liquid nitrogen with under-190 ℃ ~-200 ℃ carries out sub-zero treatment, and the time is 1 hour;
3) tempering for the first time: under 150 ℃ ~ 160 ℃, carry out the tempering first time, soaking time 2 ~ 6 hours;
4) tempering for the second time: the stainless steel shaft bearing ring for after the corase grind carries out the tempering second time, is incubated 15 ~ 20 hours down at 130 ℃ ~ 140 ℃;
5) tempering for the third time: the stainless steel shaft bearing ring for behind the correct grinding carries out tempering for the third time, is incubated 15 ~ 20 hours down at 130 ℃ ~ 140 ℃.
In preferred embodiment of the present invention, said thermal processing equipment adopts salt bath furnace, electric furnace or vacuum oven.
The invention has the beneficial effects as follows: the present invention has disclosed a kind of stainless steel shaft bearing ring thermal treatment process; Through choosing to stainless steel shaft bearing ring thermal treatment process temperature, the control of time and HTFX; Adopted tempering process three times; Improved intensity, hardness, wear resistance, the size stability of lasso, prevented lasso surface oxidation and decarbonization and corrosion, made it have high corrosion-resistant, high temperature resistant and low temperature resistant ability.
Description of drawings
Fig. 1 is the process flow synoptic diagram of stainless steel shaft bearing ring thermal treatment process of the present invention.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is set forth in detail, thereby protection scope of the present invention is made more explicit defining so that advantage of the present invention and characteristic can be easier to it will be appreciated by those skilled in the art that.
See also Fig. 1, the embodiment of the invention comprises:
A kind of stainless steel shaft bearing ring thermal treatment process may further comprise the steps:
1) quenches: stainless steel shaft bearing ring after the turning is heated to 845 ~ 855 ℃; Preheating 10 ~ 18 minutes; Be warming up to 1050 ~ 1070 ℃ again and carry out quenching and preserving heat, every millimeter wall thickness soaking time is 1 ~ 1.5 minute, and heat-eliminating medium is 10 ° or 20 ° of machinery oil of 30 ℃ ~ 60 ℃;
2) sub-zero treatment: the liquid nitrogen with under-190 ℃ ~-200 ℃ carries out sub-zero treatment, and the time is 1 hour;
3) tempering for the first time: under 150 ℃ ~ 160 ℃, carry out the tempering first time, soaking time 2 ~ 6 hours;
4) tempering for the second time: the stainless steel shaft bearing ring for after the corase grind carries out the tempering second time, is incubated 15 ~ 20 hours down at 130 ℃ ~ 140 ℃;
5) tempering for the third time: the stainless steel shaft bearing ring for behind the correct grinding carries out tempering for the third time, is incubated 15 ~ 20 hours down at 130 ℃ ~ 140 ℃.
Said thermal processing equipment adopts salt bath furnace, electric furnace or vacuum oven.
The present invention has disclosed a kind of stainless steel shaft bearing ring thermal treatment process; Through choosing to stainless steel shaft bearing ring thermal treatment process temperature, the control of time and HTFX; Adopted tempering process three times; Improved intensity, hardness, wear resistance, the size stability of lasso, prevented lasso surface oxidation and decarbonization and corrosion, made it have high corrosion-resistant, high temperature resistant and low temperature resistant ability.
The above is merely embodiments of the invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes specification sheets of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (2)
1. a stainless steel shaft bearing ring thermal treatment process is characterized in that, may further comprise the steps:
1) quenches: stainless steel shaft bearing ring after the turning is heated to 845 ~ 855 ℃; Preheating 10 ~ 18 minutes; Be warming up to 1050 ~ 1070 ℃ again and carry out quenching and preserving heat, every millimeter wall thickness soaking time is 1 ~ 1.5 minute, and heat-eliminating medium is 10 ° or 20 ° of machinery oil of 30 ℃ ~ 60 ℃;
2) sub-zero treatment: the liquid nitrogen with under-190 ℃ ~-200 ℃ carries out sub-zero treatment, and the time is 1 hour;
3) tempering for the first time: under 150 ℃ ~ 160 ℃, carry out the tempering first time, soaking time 2 ~ 6 hours;
4) tempering for the second time: the stainless steel shaft bearing ring for after the corase grind carries out the tempering second time, is incubated 15 ~ 20 hours down at 130 ℃ ~ 140 ℃;
5) tempering for the third time: the stainless steel shaft bearing ring for behind the correct grinding carries out tempering for the third time, is incubated 15 ~ 20 hours down at 130 ℃ ~ 140 ℃.
2. stainless steel shaft bearing ring thermal treatment process according to claim 1 is characterized in that, said thermal processing equipment adopts salt bath furnace, electric furnace or vacuum oven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110350997XA CN102618711A (en) | 2011-11-09 | 2011-11-09 | Heat treatment technology for stainless steel bearing rings |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110350997XA CN102618711A (en) | 2011-11-09 | 2011-11-09 | Heat treatment technology for stainless steel bearing rings |
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| CN102618711A true CN102618711A (en) | 2012-08-01 |
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| CN201110350997XA Pending CN102618711A (en) | 2011-11-09 | 2011-11-09 | Heat treatment technology for stainless steel bearing rings |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243212A (en) * | 2013-05-16 | 2013-08-14 | 江苏万达特种轴承有限公司 | Manufacturing method of high-temperature-resistant rolling shaft bearing |
| CN104328267A (en) * | 2014-12-02 | 2015-02-04 | 江阴吉爱倍万达精工有限公司 | Heat treatment process of large-diameter stainless steel bearing ring |
| CN105200200A (en) * | 2015-09-10 | 2015-12-30 | 安徽日飞轴承有限公司 | Heat treatment method of beating ring |
| CN105506235A (en) * | 2015-12-15 | 2016-04-20 | 常熟市常轴轴承有限公司 | Heat treatment process of high carbon chromium bearing steel bearing ring |
| CN105886745A (en) * | 2016-06-05 | 2016-08-24 | 无锡市飞云球业有限公司 | Heat treatment technology for long-life bearing steel ball |
| CN108504846A (en) * | 2018-04-02 | 2018-09-07 | 合肥市远大轴承锻造有限公司 | A kind of environmentally friendly heat treatment process of wind power bearing hood assembly |
| CN108728628A (en) * | 2018-07-02 | 2018-11-02 | 洛阳Lyc轴承有限公司 | A kind of 9Cr18 steel large diameter thin wall bearing ring heat treatment method |
| CN110172556A (en) * | 2019-05-06 | 2019-08-27 | 贵州工程应用技术学院 | A kind of cryogenic treating process enhancing stainless steel cloth fatigue resistance |
| CN112192322A (en) * | 2020-09-16 | 2021-01-08 | 常熟缘阳机械制造有限公司 | Anti-deformation grinding process for bearing ring |
| CN117386724A (en) * | 2023-12-13 | 2024-01-12 | 杭州一佳精密轴承有限公司 | Turbocharger ball bearing suitable for large-displacement diesel engine and manufacturing method |
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| CN101280808A (en) * | 2008-04-05 | 2008-10-08 | 余姚市曙光不锈钢轴承有限公司 | Mirror face stainless steel bearing and process thereof |
| CN101935752A (en) * | 2010-08-03 | 2011-01-05 | 洛阳Lyc轴承有限公司 | Thermal treatment technology of high-nitrogen stainless bearing steel |
| CN102221495A (en) * | 2011-03-31 | 2011-10-19 | 洛阳Lyc轴承有限公司 | Method for displaying original austenite grain boundary of 40Cr15Mo2VN bearing steel |
| CN102226253A (en) * | 2011-06-10 | 2011-10-26 | 钢铁研究总院 | Carburized bearing steel for high-speed railways and preparation method thereof |
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2011
- 2011-11-09 CN CN201110350997XA patent/CN102618711A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101280808A (en) * | 2008-04-05 | 2008-10-08 | 余姚市曙光不锈钢轴承有限公司 | Mirror face stainless steel bearing and process thereof |
| CN101935752A (en) * | 2010-08-03 | 2011-01-05 | 洛阳Lyc轴承有限公司 | Thermal treatment technology of high-nitrogen stainless bearing steel |
| CN102221495A (en) * | 2011-03-31 | 2011-10-19 | 洛阳Lyc轴承有限公司 | Method for displaying original austenite grain boundary of 40Cr15Mo2VN bearing steel |
| CN102226253A (en) * | 2011-06-10 | 2011-10-26 | 钢铁研究总院 | Carburized bearing steel for high-speed railways and preparation method thereof |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243212A (en) * | 2013-05-16 | 2013-08-14 | 江苏万达特种轴承有限公司 | Manufacturing method of high-temperature-resistant rolling shaft bearing |
| CN103243212B (en) * | 2013-05-16 | 2014-07-02 | 江苏万达特种轴承有限公司 | Manufacturing method of high-temperature-resistant rolling shaft bearing |
| CN104328267A (en) * | 2014-12-02 | 2015-02-04 | 江阴吉爱倍万达精工有限公司 | Heat treatment process of large-diameter stainless steel bearing ring |
| CN105200200A (en) * | 2015-09-10 | 2015-12-30 | 安徽日飞轴承有限公司 | Heat treatment method of beating ring |
| CN105506235A (en) * | 2015-12-15 | 2016-04-20 | 常熟市常轴轴承有限公司 | Heat treatment process of high carbon chromium bearing steel bearing ring |
| CN105886745A (en) * | 2016-06-05 | 2016-08-24 | 无锡市飞云球业有限公司 | Heat treatment technology for long-life bearing steel ball |
| CN108504846A (en) * | 2018-04-02 | 2018-09-07 | 合肥市远大轴承锻造有限公司 | A kind of environmentally friendly heat treatment process of wind power bearing hood assembly |
| CN108728628A (en) * | 2018-07-02 | 2018-11-02 | 洛阳Lyc轴承有限公司 | A kind of 9Cr18 steel large diameter thin wall bearing ring heat treatment method |
| CN110172556A (en) * | 2019-05-06 | 2019-08-27 | 贵州工程应用技术学院 | A kind of cryogenic treating process enhancing stainless steel cloth fatigue resistance |
| CN112192322A (en) * | 2020-09-16 | 2021-01-08 | 常熟缘阳机械制造有限公司 | Anti-deformation grinding process for bearing ring |
| CN117386724A (en) * | 2023-12-13 | 2024-01-12 | 杭州一佳精密轴承有限公司 | Turbocharger ball bearing suitable for large-displacement diesel engine and manufacturing method |
| CN117386724B (en) * | 2023-12-13 | 2024-03-01 | 杭州一佳精密轴承有限公司 | Turbocharger ball bearing suitable for large-displacement diesel engine and manufacturing method |
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Application publication date: 20120801 |