CN104805269A - 一种齿轮中频淬火工艺 - Google Patents
一种齿轮中频淬火工艺 Download PDFInfo
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- CN104805269A CN104805269A CN201510207344.4A CN201510207344A CN104805269A CN 104805269 A CN104805269 A CN 104805269A CN 201510207344 A CN201510207344 A CN 201510207344A CN 104805269 A CN104805269 A CN 104805269A
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/32—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for gear wheels, worm wheels, or the like
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
- C21D1/42—Induction heating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
本发明涉及金属热处理技术领域,具体涉及一种齿轮中频淬火工艺,采用中频感应加热设备对齿轮进行加工,包括:步骤一:加热,使齿轮表面温度达到900℃;步骤二:预冷,将齿轮表面温度预冷至820℃;步骤三:水冷,冷却时间30s,冷却温度300摄氏度;步骤四:空冷,冷却时间1h,使齿轮表面温度冷却至200摄氏度;步骤五:回火,温度300℃,时间3h。本发明所公开的一种齿轮中频淬火工艺,工艺路线设计合理,能够保证加工齿轮的硬度要求,完全避免齿轮开裂,把齿轮的变形控制在一个较小的范围,从而生产出高质量齿轮。
Description
技术领域
本发明涉及金属热处理技术领域,具体涉及一种齿轮中频淬火工艺。
背景技术
随着我国重工业水平的发展,各种大型工业机械在工业生产中起到的作用越来越大,矿用采掘机械、运输机械等减速器齿轮,直径较大,强度要求较高,采用高频加热淬火硬化层浅,不易保证强度要求。需要采用可靠性高的淬火技术,才能够达到对齿轮的硬度要求,但是,现有技术中很多不合理的淬火工艺,往往无法达到技术要求。
发明内容
为解决现有技术中存在的上述问题,本发明提供了一种齿轮中频淬火工艺。
本发明的技术效果通过以下技术方案实现:
一种齿轮中频淬火工艺,采用中频感应加热设备对齿轮进行加工,包括:
步骤一:加热,使齿轮表面温度达到900℃;
步骤二:预冷,将齿轮表面温度预冷至820℃;
步骤三:水冷,冷却时间30s,冷却温度300摄氏度;
步骤四:空冷,冷却时间1h,使齿轮表面温度冷却至200摄氏度;
步骤五: 回火,温度300℃,时间3h。
本发明的有益效果是:
本发明所公开的一种齿轮中频淬火工艺,工艺路线设计合理,能够保证加工齿轮的硬度要求,完全避免齿轮开裂,把齿轮的变形控制在一个较小的范围,从而生产出高质量齿轮。
具体实施方式
本发明通过以下具体实施方式实现:
一种齿轮中频淬火工艺,采用中频感应加热设备对齿轮进行加工,包括:
步骤一:加热,使齿轮表面温度达到900℃;
步骤二:预冷,将齿轮表面温度预冷至820℃;
步骤三:水冷,冷却时间30s,冷却温度300摄氏度;
步骤四:空冷,冷却时间1h,使齿轮表面温度冷却至200摄氏度;
步骤五: 回火,温度300℃,时间3h。
最后应说明的是:以上所述仅为本发明的优选实施例而已,并不用于限制本发明,尽管参照前述实施例对本发明进行了详细的说明,对于本领域的技术人员来说,其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (1)
1.一种齿轮中频淬火工艺,其特征在于:采用中频感应加热设备对齿轮进行加工,包括:
步骤一:加热,使齿轮表面温度达到900℃;
步骤二:预冷,将齿轮表面温度预冷至820℃;
步骤三:水冷,冷却时间30s,冷却温度300摄氏度;
步骤四:空冷,冷却时间1h,使齿轮表面温度冷却至200摄氏度;
步骤五: 回火,温度300℃,时间3h。
Priority Applications (1)
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CN201510207344.4A CN104805269A (zh) | 2015-04-28 | 2015-04-28 | 一种齿轮中频淬火工艺 |
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CN201510207344.4A CN104805269A (zh) | 2015-04-28 | 2015-04-28 | 一种齿轮中频淬火工艺 |
Publications (1)
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CN104805269A true CN104805269A (zh) | 2015-07-29 |
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CN201510207344.4A Pending CN104805269A (zh) | 2015-04-28 | 2015-04-28 | 一种齿轮中频淬火工艺 |
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CN (1) | CN104805269A (zh) |
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2015
- 2015-04-28 CN CN201510207344.4A patent/CN104805269A/zh active Pending
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Application publication date: 20150729 |