CN104805266A - 一种重载齿轮渗碳淬火工艺 - Google Patents

一种重载齿轮渗碳淬火工艺 Download PDF

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Publication number
CN104805266A
CN104805266A CN201510207194.7A CN201510207194A CN104805266A CN 104805266 A CN104805266 A CN 104805266A CN 201510207194 A CN201510207194 A CN 201510207194A CN 104805266 A CN104805266 A CN 104805266A
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China
Prior art keywords
quenching
carburizing
hours
tempering
heavy
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CN201510207194.7A
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Inventor
何拥军
何嘉圣
何嘉贤
蒋漓洪
杜贵明
梁兵
赖卫华
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LIUZHOU KEERTE FORGING MACHINERY Co Ltd
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LIUZHOU KEERTE FORGING MACHINERY Co Ltd
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Priority to CN201510207194.7A priority Critical patent/CN104805266A/zh
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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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

本发明涉及金属热处理技术领域，具体涉及一种重载齿轮渗碳淬火工艺，包括以下步骤：步骤一：渗碳，渗碳温度为850-900℃；步骤二：预冷，将齿轮预冷至600℃，冷却时间为10小时；步骤三：回火，回火温度250℃，时间3小时；步骤四：淬火，淬火油温度100-150℃，7小时；步骤五：对齿轮进行清洗；步骤六：回火：500-600℃，3小时。步骤七：二次淬火，淬火油温度100-150℃，3小时。本发明所公开的一种重载齿轮渗碳淬火工艺，工艺路线设计合理，能够保证加工齿轮的硬度要求，生产周期短，耗电量少，成本低。

Description

一种重载齿轮渗碳淬火工艺
技术领域
    本发明涉及金属热处理技术领域，具体涉及一种重载齿轮渗碳淬火工艺。
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、运输机械等低速重载齿轮，要求采用可靠性高的渗碳淬火技术，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渗碳淬火工艺，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，本发明提供了一种重载齿轮渗碳淬火工艺。
本发明的技术效果通过以下技术方案实现：
一种重载齿轮渗碳淬火工艺，包括以下步骤：
步骤一：渗碳，渗碳温度为850-900℃；
步骤二：预冷，将齿轮预冷至600℃，冷却时间为10小时；
步骤三：回火，回火温度250℃，时间3小时；
步骤四：淬火，淬火油温度100-150℃，7小时；
步骤五：对齿轮进行清洗；
步骤六：回火：500-600℃，3小时；
步骤七：二次淬火，淬火油温度100-150℃，3小时。
本发明的有益效果是：
本发明所公开的一种重载齿轮渗碳淬火工艺，工艺路线设计合理，能够保证加工齿轮的硬度要求，生产周期短，耗电量少，成本低。
具体实施方式
本发明通过以下具体实施方式实现：
一种重载齿轮渗碳淬火工艺，包括以下步骤：
步骤一：渗碳，渗碳温度为900℃；
步骤二：预冷，将齿轮预冷至600℃，冷却时间为10小时；
步骤三：回火，回火温度250℃，时间3小时；
步骤四：淬火，淬火油温度150℃，7小时；
步骤五：对齿轮进行清洗；
步骤六：回火： 600℃，3小时。
步骤七：二次淬火，淬火油温度150℃，3小时。
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)

1.一种重载齿轮渗碳淬火工艺，其特征在于：包括以下步骤：
步骤一：渗碳，渗碳温度为850-900℃；
步骤二：预冷，将齿轮预冷至600℃，冷却时间为10小时；
步骤三：回火，回火温度250℃，时间3小时；
步骤四：淬火，淬火油温度100-150℃，7小时；
步骤五：对齿轮进行清洗；
步骤六：回火：500-600℃，3小时；
步骤七：二次淬火，淬火油温度100-150℃，3小时。
CN201510207194.7A 2015-04-28 2015-04-28 一种重载齿轮渗碳淬火工艺 Pending CN104805266A (zh)

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CN201510207194.7A CN104805266A (zh) 2015-04-28 2015-04-28 一种重载齿轮渗碳淬火工艺

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CN104805266A true CN104805266A (zh) 2015-07-29

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107326321A (zh) * 2017-08-15 2017-11-07 肥西县通力机械有限公司 一种改善钢材工件使用特性的处理方法
CN108504845A (zh) * 2017-11-22 2018-09-07 新昌县回山镇金帛机械厂 一种套圈的热处理工艺

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05222445A (ja) * 1992-02-07 1993-08-31 Nissan Motor Co Ltd 浸炭焼入方法
CN102605378A (zh) * 2012-01-13 2012-07-25 浙江吉利汽车研究院有限公司 一种齿轮的渗碳淬火方法
CN103643241A (zh) * 2013-11-26 2014-03-19 常熟市东风齿轮厂 齿轮渗碳淬火工艺

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05222445A (ja) * 1992-02-07 1993-08-31 Nissan Motor Co Ltd 浸炭焼入方法
CN102605378A (zh) * 2012-01-13 2012-07-25 浙江吉利汽车研究院有限公司 一种齿轮的渗碳淬火方法
CN103643241A (zh) * 2013-11-26 2014-03-19 常熟市东风齿轮厂 齿轮渗碳淬火工艺

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
李书常主编: "《热处理使用淬火介质精选》", 28 February 2009, 化学工业出版社 *
王先会主编: "《金属加工油剂应用技术》", 30 April 2005, 中国石化出版社 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107326321A (zh) * 2017-08-15 2017-11-07 肥西县通力机械有限公司 一种改善钢材工件使用特性的处理方法
CN108504845A (zh) * 2017-11-22 2018-09-07 新昌县回山镇金帛机械厂 一种套圈的热处理工艺

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Application publication date: 20150729