CN103710511B - Process for improving force thermal stability of diaphragm spring - Google Patents
Process for improving force thermal stability of diaphragm spring Download PDFInfo
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- CN103710511B CN103710511B CN201310703358.6A CN201310703358A CN103710511B CN 103710511 B CN103710511 B CN 103710511B CN 201310703358 A CN201310703358 A CN 201310703358A CN 103710511 B CN103710511 B CN 103710511B
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- heat setting
- diaphragm spring
- thermal stability
- heat
- tempering
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Abstract
The invention discloses a process for improving force thermal stability of a diaphragm spring. A heat setting step is added between a tempering step and an end high-frequency quenching step in the process, and heat setting is performed on tempered parts in a heat setting mould. The process disclosed by the invention has an advantage that force heat fade of a processed diaphragm is less than 1% on a clutch, thus obviously improving thermal stability of the clutch.
Description
Technical field
The present invention relates to a kind of technique improving clutch diaphragm spring power thermostability.
Background technology
Conventional film leaf spring thermal treatment process is that pressure is quenched → tempering → (end) high frequency → ball blast → suppress → dynamometry, the non-stop run of clutch coupling high temperature can produce spring force value decay, the diaphragm of this processes is installed force value heat fading on the clutch and, in about 10% (as shown in Figure 1), has been had a strong impact on the thermostability of clutch coupling.
Summary of the invention
Technical problem to be solved by this invention is the technique of the raising diaphragm spring force value thermostability that a kind of clutch coupling thermostability will be provided strong.
In order to solve above technical problem, the invention provides a kind of technique improving diaphragm spring force value thermostability, between tempering process and end quenching technology, increasing heat setting process, the part after tempering is put into heat setting type mould and carries out heat setting type.
Technique of the present invention is that pressure is quenched → tempering → heat setting type → (end) high frequency → ball blast → suppress → dynamometry.
The temperature of described heat setting process is 320 ± 10 DEG C, and heat-up time is 8.5 ± 0.5 points.
Advantage effect of the present invention is: the diaphragm of present invention process processing is installed force value heat fading on the clutch and, less than 1%, significantly improved the thermostability of clutch coupling.
Accompanying drawing explanation
Fig. 1 is the test pattern to existing diaphragm spring heat fading value;
Fig. 2 is the test pattern to diaphragm spring heat fading value of the present invention.
Embodiment
The invention will be further described below.
The invention provides a kind of technique improving diaphragm spring force value thermostability, this technique presses (870 DEG C, 8.5 ~ 15min) → tempering (440 DEG C, 60min) → heat setting type (320 DEG C of quenching, 8.5min) → pressurize (2 ~ 3s, pressure 2Mpa) → high-frequency quenching ball blast → suppress → dynamometry.
After tempering, part enters press in 8 minutes through the 320 DEG C of low-temperature heats of roller rod stove, and heat setting type mould is by diaphragm cone angle pressure trans-10 °, and pressurize 2s ~ 3s cools water-cooled simultaneously.Through this processes part after tested, as shown in Figure 2, after heat setting process, heat fading quantity not sufficient 1%.
Claims (1)
1. one kind is improved the technique of diaphragm spring force value thermostability, it is characterized in that: between tempering process and end quenching technology, increase heat setting process, part after tempering is put into heat setting type mould and carries out heat setting type, the temperature of described heat setting process is 320 ± 10 DEG C, and heat-up time is 8.5 ± 0.5 points.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310703358.6A CN103710511B (en) | 2013-12-19 | 2013-12-19 | Process for improving force thermal stability of diaphragm spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310703358.6A CN103710511B (en) | 2013-12-19 | 2013-12-19 | Process for improving force thermal stability of diaphragm spring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103710511A CN103710511A (en) | 2014-04-09 |
| CN103710511B true CN103710511B (en) | 2015-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310703358.6A Active CN103710511B (en) | 2013-12-19 | 2013-12-19 | Process for improving force thermal stability of diaphragm spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103710511B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108866302A (en) * | 2018-07-27 | 2018-11-23 | 苏州市润凯汽车配件制造有限公司 | A kind of heat setting process of butterfly spring |
| CN112589386A (en) * | 2020-11-27 | 2021-04-02 | 长春一东离合器股份有限公司 | Processing technology of circular arc separation finger diaphragm spring |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2909921B2 (en) * | 1990-07-18 | 1999-06-23 | アイシン精機株式会社 | Forming heat treatment method for diaphragm springs |
| CN101655129A (en) * | 2009-09-21 | 2010-02-24 | 湖北大帆汽车零部件有限公司 | Diaphragm spring and finger tip thermal processing process thereof |
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2013
- 2013-12-19 CN CN201310703358.6A patent/CN103710511B/en active Active
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| Publication number | Publication date |
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| CN103710511A (en) | 2014-04-09 |
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Address after: 201708 Qingpu District Shanghai City Huaxin Town Ji He Lu No. 3189 Patentee after: Huayu power assembly component system (Shanghai) Co., Ltd Address before: 201708 Qingpu District Shanghai City Huaxin Town Ji He Lu No. 3189 Patentee before: SHANGHAI SACHS POWERTRAIN COMPONENTS & SYSTEM Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |