CN103643000A - Thermal processing technology for wear-resistant gears - Google Patents

Thermal processing technology for wear-resistant gears Download PDF

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Publication number
CN103643000A
CN103643000A CN201310605273.4A CN201310605273A CN103643000A CN 103643000 A CN103643000 A CN 103643000A CN 201310605273 A CN201310605273 A CN 201310605273A CN 103643000 A CN103643000 A CN 103643000A
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CN
China
Prior art keywords
gear
gears
temperature
furnace
incubated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201310605273.4A
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Chinese (zh)
Inventor
万小华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changshu dongfeng gear factory
Original Assignee
Changshu dongfeng gear factory
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Changshu dongfeng gear factory filed Critical Changshu dongfeng gear factory
Priority to CN201310605273.4A priority Critical patent/CN103643000A/en
Publication of CN103643000A publication Critical patent/CN103643000A/en
Pending legal-status Critical Current

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Abstract

A disclosed thermal processing technology for wear-resistant gears comprises the following steps: 1) performing acid pickling on gears; 2) putting the gears into a heating furnace to perform preheat treatment, raising the furnace temperature to 200-210 DEG C, introducing carbon dioxide as a protective gas, and keeping the temperature for 5 h; 3) raising the furnace temperature to 600-610 DEG C and keeping the temperature for 3 h; 4) raising the temperature to 800-810 DEG C and keeping the temperature for 2 h; 5) discharging from the furnace, putting the gears in quenching oil with a temperature of 700-705 DEG C for quenching cooling for 1 h; 6) cleaning the gears with gasoline; 7) putting the gears into quenching oil with a temperature of 200-205 DEG C for quenching cooling for 1 h, taking out the gears, and cooling in wind to room temperature; and 8) putting the gears into a tempering furnace to perform tempering processing, raising the furnace temperature to 600-605 DEG C, keeping the temperature for 5 h, and discharging from the furnace and cooling to room temperature. The provided thermal processing technology for the wear-resistant gears is capable of relatively completely heating and helps to improve the toughness of the interior of the gears.

Description

The thermal treatment process of wear-resistant gear
Technical field
The present invention relates to the thermal treatment process of wear-resistant gear.
Background technology
If existing gear pressure in work is excessive, or practicality is comparatively frequent, just easily cause the damage of gear, make between gear well toe joint together, and gear is all in inside, also bad replacing, this just causes, in existing gear application, gear having been had to more and more higher requirement.
Summary of the invention
The object of the present invention is to provide a kind of thermal treatment process of wear-resistant gear, its heating is more complete, and the toughness of gear inside is improved.
For achieving the above object, technical scheme of the present invention is the thermal treatment process of a kind of wear-resistant gear of design, comprises the steps:
1) gear is carried out to pickling;
2) gear is put into process furnace again and carried out thermal pretreatment, furnace temperature rises to 200-210 ℃, passes into carbonic acid gas as shielding gas, is incubated 5 hours;
3) again furnace temperature is risen to 600-610 ℃, be incubated 3 hours;
4) again furnace temperature is risen to 800-810 ℃, be incubated 2 hours;
5) come out of the stove, gear is put into the quenching oil quench cooled of 700-705 ℃, the time is 1 hour;
6) clean, with gasoline, gear is cleaned;
7) gear is put into the quenching oil quench cooled of 200-205 ℃, the time is 1 hour again, takes out gear air-cooled to room temperature;
8) gear is put into tempering stove again and carried out temper, furnace temperature rises to 600-605 ℃, is incubated 5 hours, and the air cooling of coming out of the stove is to room temperature.
Advantage of the present invention and beneficial effect are: a kind of thermal treatment process of wear-resistant gear is provided, and its heating is more complete, and the toughness of gear inside is improved.
Embodiment
Below in conjunction with embodiment, the specific embodiment of the present invention is further described.Following examples are only for technical scheme of the present invention is more clearly described, and can not limit the scope of the invention with this.
The concrete technical scheme of implementing of the present invention is:
Embodiment 1
A thermal treatment process for wear-resistant gear, comprises the steps:
1) gear is carried out to pickling;
2) gear is put into process furnace again and carried out thermal pretreatment, furnace temperature rises to 206 ℃, passes into carbonic acid gas as shielding gas, is incubated 5 hours;
3) furnace temperature is risen to 604 ℃ again, be incubated 3 hours;
4) furnace temperature is risen to 806 ℃ again, be incubated 2 hours;
5) come out of the stove, gear is put into the quenching oil quench cooled of 703 ℃, the time is 1 hour;
6) clean, with gasoline, gear is cleaned;
7) gear is put into the quenching oil quench cooled of 202 ℃, the time is 1 hour again, takes out gear air-cooled to room temperature;
8) gear is put into tempering stove again and carried out temper, furnace temperature rises to 601 ℃, is incubated 5 hours, and the air cooling of coming out of the stove is to room temperature.
Embodiment 2
A thermal treatment process for wear-resistant gear, comprises the steps:
1) gear is carried out to pickling;
2) gear is put into process furnace again and carried out thermal pretreatment, furnace temperature rises to 210 ℃, passes into carbonic acid gas as shielding gas, is incubated 5 hours;
3) furnace temperature is risen to 610 ℃ again, be incubated 3 hours;
4) furnace temperature is risen to 810 ℃ again, be incubated 2 hours;
5) come out of the stove, gear is put into the quenching oil quench cooled of 705 ℃, the time is 1 hour;
6) clean, with gasoline, gear is cleaned;
7) gear is put into the quenching oil quench cooled of 205 ℃, the time is 1 hour again, takes out gear air-cooled to room temperature;
8) gear is put into tempering stove again and carried out temper, furnace temperature rises to 605 ℃, is incubated 5 hours, and the air cooling of coming out of the stove is to room temperature.
Embodiment 3
A thermal treatment process for wear-resistant gear, comprises the steps:
1) gear is carried out to pickling;
2) gear is put into process furnace again and carried out thermal pretreatment, furnace temperature rises to 200 ℃, passes into carbonic acid gas as shielding gas, is incubated 5 hours;
3) furnace temperature is risen to 600 ℃ again, be incubated 3 hours;
4) furnace temperature is risen to 800 ℃ again, be incubated 2 hours;
5) come out of the stove, gear is put into the quenching oil quench cooled of 700 ℃, the time is 1 hour;
6) clean, with gasoline, gear is cleaned;
7) gear is put into the quenching oil quench cooled of 200 ℃, the time is 1 hour again, takes out gear air-cooled to room temperature;
8) gear is put into tempering stove again and carried out temper, furnace temperature rises to 600 ℃, is incubated 5 hours, and the air cooling of coming out of the stove is to room temperature.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of 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 thermal treatment process of wear-resistant gear, is characterized in that, comprises the steps:
1) gear is carried out to pickling;
2) gear is put into process furnace again and carried out thermal pretreatment, furnace temperature rises to 200-210 ℃, passes into carbonic acid gas as shielding gas, is incubated 5 hours;
3) again furnace temperature is risen to 600-610 ℃, be incubated 3 hours;
4) again furnace temperature is risen to 800-810 ℃, be incubated 2 hours;
5) come out of the stove, gear is put into the quenching oil quench cooled of 700-705 ℃, the time is 1 hour;
6) clean, with gasoline, gear is cleaned;
7) gear is put into the quenching oil quench cooled of 200-205 ℃, the time is 1 hour again, takes out gear air-cooled to room temperature;
8) gear is put into tempering stove again and carried out temper, furnace temperature rises to 600-605 ℃, is incubated 5 hours, and the air cooling of coming out of the stove is to room temperature.
CN201310605273.4A 2013-11-26 2013-11-26 Thermal processing technology for wear-resistant gears Pending CN103643000A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310605273.4A CN103643000A (en) 2013-11-26 2013-11-26 Thermal processing technology for wear-resistant gears

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310605273.4A CN103643000A (en) 2013-11-26 2013-11-26 Thermal processing technology for wear-resistant gears

Publications (1)

Publication Number Publication Date
CN103643000A true CN103643000A (en) 2014-03-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310605273.4A Pending CN103643000A (en) 2013-11-26 2013-11-26 Thermal processing technology for wear-resistant gears

Country Status (1)

Country Link
CN (1) CN103643000A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109628718A (en) * 2017-10-09 2019-04-16 徐州东鹏工具制造有限公司 A kind of heat treatment process of bolt
CN109628726A (en) * 2017-10-09 2019-04-16 徐州东鹏工具制造有限公司 A kind of heat treatment process of gear
CN112575169A (en) * 2020-12-14 2021-03-30 安徽瑞荣汽车零部件有限公司 Heat treatment process for automobile transmission gear

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102021588A (en) * 2010-12-04 2011-04-20 江苏飞船股份有限公司 20Cr2Ni4A steel carburizing and nitrocarburizing multiplex heat treatment process
CN102560061A (en) * 2011-12-30 2012-07-11 中信重工机械股份有限公司 Control method of hollow gear shaft carburization and quenching distortion
CN102605160A (en) * 2011-12-30 2012-07-25 中信重工机械股份有限公司 Heating processing technology for tooth punching and tempering on open large gear
CN102605378A (en) * 2012-01-13 2012-07-25 浙江吉利汽车研究院有限公司 Carburizing and quenching method
CN103014297A (en) * 2012-11-27 2013-04-03 大连经济技术开发区圣洁真空技术开发有限公司 Heat treatment technology for abrasion-resistant gear

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102021588A (en) * 2010-12-04 2011-04-20 江苏飞船股份有限公司 20Cr2Ni4A steel carburizing and nitrocarburizing multiplex heat treatment process
CN102560061A (en) * 2011-12-30 2012-07-11 中信重工机械股份有限公司 Control method of hollow gear shaft carburization and quenching distortion
CN102605160A (en) * 2011-12-30 2012-07-25 中信重工机械股份有限公司 Heating processing technology for tooth punching and tempering on open large gear
CN102605378A (en) * 2012-01-13 2012-07-25 浙江吉利汽车研究院有限公司 Carburizing and quenching method
CN103014297A (en) * 2012-11-27 2013-04-03 大连经济技术开发区圣洁真空技术开发有限公司 Heat treatment technology for abrasion-resistant gear

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109628718A (en) * 2017-10-09 2019-04-16 徐州东鹏工具制造有限公司 A kind of heat treatment process of bolt
CN109628726A (en) * 2017-10-09 2019-04-16 徐州东鹏工具制造有限公司 A kind of heat treatment process of gear
CN112575169A (en) * 2020-12-14 2021-03-30 安徽瑞荣汽车零部件有限公司 Heat treatment process for automobile transmission gear

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Application publication date: 20140319