CN103643000A - Thermal processing technology for wear-resistant gears - Google Patents
Thermal processing technology for wear-resistant gears Download PDFInfo
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- 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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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
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.
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 |
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| CN (1) | CN103643000A (en) |
Cited By (3)
| 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)
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|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
| 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 |
-
2013
- 2013-11-26 CN CN201310605273.4A patent/CN103643000A/en active Pending
Patent Citations (5)
| 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)
| 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 |