CN102899475B - Steel ball for blower fan - Google Patents
Steel ball for blower fan Download PDFInfo
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- CN102899475B CN102899475B CN201210339343.1A CN201210339343A CN102899475B CN 102899475 B CN102899475 B CN 102899475B CN 201210339343 A CN201210339343 A CN 201210339343A CN 102899475 B CN102899475 B CN 102899475B
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Abstract
The invention discloses a steel ball for a blower fan. The steel ball is composed of high-quality die-casting GCr15 bearings. A preparation method for the steel ball comprises the following steps: selection of raw materials; hot heading; normalizing; spheroidizing annealing; buffing; soft buffing; quenching; primary tempering; secondary tempering; hard grinding; grinding; stable tempering; eddy current inspection; refined grinding; shaping; and packaging and warehousing. The preparation method has the following characteristics: in the step of quenching, heating temperature is 854 to 871 DEG C, insulation time is 76 to 82 min, and ball load is 40 granules/furnace; in the step of primary tempering, tempering temperature is 200 +/- 3 DEG C, tempering time is 230 to 245 min, and ball load is 120 granules/time; in the step of secondary tempering, tempering temperature is 180 +/- 3 DEG C, tempering time is 180 +/- 5 min, and ball load is 120 granules/ time; and in the step of stable tempering, tempering temperature is 180 +/- 3 DEG C, and tempering time is 180 min. Compression test values of the steel ball for a blower fan are reduced by 0.2 to 0.5 mu m compared with national standards, and the steel ball reaches the level of a foreign product of a same kind.
Description
Technical field
The present invention relates to a kind of steel ball, particularly a kind of blower fan steel ball.
Background technology
Steel ball is important base parts and components, and especially accurate industrial ball plays great function in the national economic development.Under some special conditionss, usually need the steel ball of special substance, complete the lower function that reaches of requiring of varying environment.The steel ball mode of production generally has forging, rolling, semi-solid state moulding and casting four large classes, and the blower fan using at present relies on external import mostly with steel ball, causes enterprise's production cost huge
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of blower fan steel ball, and complete processing is simple, has greatly reduced the production cost of enterprise, promotes the development of steel ball production industry.
For achieving the above object, technical scheme of the present invention is as follows:
A kind of blower fan steel ball, be made up of high quality die casting GCr15 bearing steel, described blower fan by the preparation process of steel ball is: starting material-Re pier-normalizing-Spheroidizing Annealing-tarry matter-buffing-quenching-mono-time tempering-double tempering-hard grind-grinding-stability tempering-eddy current test-lappingout-outward appearance-pack warehouse-in; It is characterized in that, the Heating temperature of wherein said quenching is 854 DEG C～871 DEG C, and soaking time is 76～82 minutes, and quenching ball loadings is 40/stove; The tempering temperature of a described tempering is 200 ± 3 DEG C, and tempering time is 230～245 minutes, and the ball loadings of tempering is 120 tablets/time; The tempering temperature of described double tempering is 180 ± 3 DEG C, and tempering time is 180 ± 5 minutes, and double tempering ball loadings is 120 tablets/time; The tempering temperature of described stability tempering is 180 ± 3 DEG C, and tempering time is 180 minutes.
Owing to having adopted technical scheme as above, blower fan of the present invention has dwindled between 0.2～0.5 μ m by its compression testing numeric ratio national standard of steel ball, can reach the level of same kind of products at abroad.
Embodiment
For technique means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with embodiment, further set forth the present invention.
A kind of blower fan steel ball, be made up of high quality die casting GCr15 bearing steel, described blower fan by the preparation process of steel ball is: starting material-Re pier-normalizing-Spheroidizing Annealing-tarry matter-buffing-quenching-mono-time tempering-double tempering-hard grind-grinding-stability tempering-eddy current test-lappingout-outward appearance-pack warehouse-in; Wherein quenching, a tempering and double tempering processing parameter are in table 1, and stability tempering process parameters is in table 2.
Table 1
Table 2
| Tempering temperature (DEG C) | Tempering time (minute) |
| 180±3 | 180 |
Blower fan of the present invention with steel ball compressed value and external product relatively in table 3
Table 3
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (1)
1. a blower fan steel ball, be made up of high quality die casting GCr15 bearing steel, described blower fan by the preparation process of steel ball is: starting material-Re pier-normalizing-Spheroidizing Annealing-tarry matter-buffing-quenching-mono-time tempering-double tempering-hard grind-grinding-stability tempering-eddy current test-lappingout-outward appearance-pack warehouse-in; It is characterized in that,
The steel ball that is 60-70mm for diameter, the Heating temperature of quenching is 860 ± 3 DEG C, soaking time 78 ± 2 minutes, quenching ball loadings is 40/stove; The tempering temperature of a tempering is 200 ± 3 DEG C, and tempering time is 235 ± 5 minutes, and a tempering ball loadings is 120 tablets/time, then carries out double tempering, and double tempering ball loadings is 120 tablets/time, finally carries out stability tempering;
The steel ball that is 75-85mm for diameter, the Heating temperature of quenching is 857 ± 3 DEG C, soaking time 80 ± 2 minutes, quenching ball loadings is 40/stove; The tempering temperature of a tempering is 200 ± 3 DEG C, and tempering time is 240 ± 5 minutes, and a tempering ball loadings is 120 tablets/time, then carries out double tempering, and double tempering ball loadings is 120 tablets/time, finally carries out stability tempering;
Above-mentioned double tempering processing parameter is consistent, and the tempering temperature of double tempering is 180 ± 3 DEG C, and tempering time is 180 ± 5 minutes;
The tempering temperature of described stability tempering is 180 ± 3 DEG C, and tempering time is 180 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210339343.1A CN102899475B (en) | 2012-09-14 | 2012-09-14 | Steel ball for blower fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210339343.1A CN102899475B (en) | 2012-09-14 | 2012-09-14 | Steel ball for blower fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102899475A CN102899475A (en) | 2013-01-30 |
| CN102899475B true CN102899475B (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210339343.1A Expired - Fee Related CN102899475B (en) | 2012-09-14 | 2012-09-14 | Steel ball for blower fan |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103614528A (en) * | 2013-12-12 | 2014-03-05 | 攀枝花钢城集团瑞矿工业有限公司 | Forging method of producing steel balls with phi 150-180mm by adopting round steel with phi 110mm |
| CN103934632A (en) * | 2014-02-26 | 2014-07-23 | 椿中岛机械(太仓)有限公司 | Production process of steel ball of racing car generator bearing |
| CN103966414B (en) * | 2014-04-11 | 2015-11-18 | 江阴市华正金属科技有限公司 | Steel ball compound waste heat tempering process |
| CN103966415B (en) * | 2014-04-11 | 2016-11-02 | 江阴市华正金属科技有限公司 | Steel ball is combined waste heat back-fire arrangement |
| CN105479102B (en) * | 2015-11-19 | 2018-06-19 | 米易华星钒钛科技有限责任公司 | Ball mill steel ball manufacturing equipment and manufacturing method |
| 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 |
| CN107312923A (en) * | 2017-07-15 | 2017-11-03 | 芜湖乾凯材料科技有限公司 | A kind of high crush load steel ball and its processing method |
| CN107287393A (en) * | 2017-07-16 | 2017-10-24 | 芜湖市宇恒特种钢球有限公司 | Abrasion-proof steel ball and its processing method |
| CN109909812A (en) * | 2019-02-28 | 2019-06-21 | 江苏力星通用钢球股份有限公司 | A kind of big ball polishing process of wind-powered electricity generation |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1079838C (en) * | 1998-03-03 | 2002-02-27 | 张自国 | Technique for eliminating grinding crack |
| JP4228725B2 (en) * | 2003-02-28 | 2009-02-25 | 株式会社ジェイテクト | Method for manufacturing rolling and sliding parts and rolling bearing |
| CN101307799B (en) * | 2007-05-18 | 2010-09-29 | 上海钢球厂 | Blast engine steel ball |
| CN100570164C (en) * | 2008-05-26 | 2009-12-16 | 江苏力星钢球有限公司 | Wind energy generating plant special-purpose steel ball manufacturing process |
| CN101748262A (en) * | 2008-11-28 | 2010-06-23 | 上海钢球厂 | Method for manufacturing steel balls of fan bearing |
| CN102191359B (en) * | 2010-05-21 | 2012-09-19 | 江苏力星通用钢球股份有限公司 | Wind power steel ball billet hot upsetting technology |
| CN102212669B (en) * | 2010-07-21 | 2012-07-11 | 江苏力星通用钢球股份有限公司 | Heat treatment process of high-speed precision bearing steel ball |
| CN102252024B (en) * | 2011-02-14 | 2012-12-26 | 江苏力星通用钢球股份有限公司 | Steel ball special for third-age hub bearing for luxury cars |
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Granted publication date: 20140611 Termination date: 20200914 |