CN103710511A - 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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- CN103710511A CN103710511A CN201310703358.6A CN201310703358A CN103710511A CN 103710511 A CN103710511 A CN 103710511A CN 201310703358 A CN201310703358 A CN 201310703358A CN 103710511 A CN103710511 A CN 103710511A
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- heat setting
- diaphragm spring
- thermal stability
- thermostability
- 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 that improves clutch diaphragm spring power thermostability.
Background technology
Conventional film leaf spring thermal treatment process is to press quench → tempering → (end) high frequency → ball blast → suppressing → dynamometry, clutch coupling high temperature non-stop run meeting produces spring force value decay, after the diaphragm of this processes is arranged on clutch coupling, the heat fading of power value, in 10% left and right (as shown in Figure 1), has 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 that the raising diaphragm spring power value thermostability that a kind of clutch coupling thermostability is strong will be provided.
In order to solve above technical problem, the invention provides a kind of technique that improves diaphragm spring power value thermostability, between tempering process and end quenching technology, increase heat setting process, the part after tempering is put into heat setting type mould and carry out heat setting type.
Technique of the present invention is to press quench → tempering → heat setting type → (end) high frequency → ball blast → suppressing → dynamometry.
The temperature of described heat setting process is 320 ± 10 ℃, and be 8.5 ± 0.5 minutes heat-up time.
Advantage effect of the present invention is: the diaphragm of processes of the present invention is arranged on rear power value heat fading less than 1% on clutch coupling, has obviously 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 that improves diaphragm spring power value thermostability, this technique be press (870 ℃, 8.5～15min) → tempering of quenching (440 ℃, (320 ℃ of 60min) → heat setting types, 8.5min) → pressurize (2～3s, pressure 2Mpa) → high-frequency quenching ball blast → suppress → dynamometry.
After tempering, part enters press for 8 minutes through 320 ℃ of low-temperature heats of roller rod stove, and heat setting type mould is pressed trans-10 ° by diaphragm cone angle, and pressurize 2s～3s is cooling water-cooled simultaneously.Through the part of this processes after tested, as shown in Figure 2, after heat setting process, heat fading quantity not sufficient 1%.
Claims (2)
1. a technique that improves diaphragm spring power value thermostability, is characterized in that: between tempering process and end quenching technology, increase heat setting process, the part after tempering is put into heat setting type mould and carry out heat setting type.
2. the technique of raising diaphragm spring power value thermostability according to claim 1, is characterized in that: the temperature of described heat setting process is 320 ± 10 ℃, and be 8.5 ± 0.5 minutes heat-up time.
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 true CN103710511A (en) | 2014-04-09 |
| CN103710511B 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 |
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| CN (1) | CN103710511B (en) |
Cited By (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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0474823A (en) * | 1990-07-18 | 1992-03-10 | Aisin Seiki Co Ltd | Forming and heat treatment for diaphragm spring |
| 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 |
-
2013
- 2013-12-19 CN CN201310703358.6A patent/CN103710511B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0474823A (en) * | 1990-07-18 | 1992-03-10 | Aisin Seiki Co Ltd | Forming and heat treatment for diaphragm spring |
| 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 |
Non-Patent Citations (2)
| Title |
|---|
| 吴德宣等: "膜片弹簧分离指端表面硬化工艺研究", 《农业机械学报》, vol. 28, no. 1, 31 March 1997 (1997-03-31), pages 136 - 139 * |
| 胡贵钱等: "桑塔纳膜片弹簧热定形自动线的设计", 《机械》, vol. 25, no. 6, 31 December 1998 (1998-12-31), pages 13 - 14 * |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103710511B (en) | 2015-05-20 |
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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. |