CN1253667C - Aramid fibre asbestos-free clutch plate - Google Patents
Aramid fibre asbestos-free clutch plate Download PDFInfo
- Publication number
- CN1253667C CN1253667C CN 03150833 CN03150833A CN1253667C CN 1253667 C CN1253667 C CN 1253667C CN 03150833 CN03150833 CN 03150833 CN 03150833 A CN03150833 A CN 03150833A CN 1253667 C CN1253667 C CN 1253667C
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- CN
- China
- Prior art keywords
- asbestos
- aramid
- composite material
- clutch plate
- aramid fiber
- 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.)
- Expired - Lifetime
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- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
The present invention relates to an aramid fibre asbestos-free clutch plate which is made of composite material comprising framework material, adhesive agents, frictional property regulating agents and mineral filling material. Aramid fiber composite fiber accounts for 30-40 wt% of the composite material, and aramid fiber accounts for 10 to 15 wt% of the aramid fiber composite material. The present invention has the advantages of no asbestos content, no environmental pollution, high strength and favorable combination property, and the main property indexes of bend resisting strength, maximum strain, wear rate, etc. are much better than the corresponding indexes of the original automobile clutch plate, so that the present invention can completely replace imported clutch plates.
Description
One, technical field
The present invention relates to used friction material in the vehicle transmission mechanism, particularly a kind of friction sheets that is used for automobile clutch.
Two, background technique
Automobile clutch is the key components and parts in the automobile, in its flywheel casing between motor and gearbox, plays transmitting torque in the automobile driving process, separates multiple functions such as transmission, damping and overload protection.Clutch surface is the core component of automobile clutch, and the performance of friction plate directly influences the usability of performance of clutch and car load.This dough sheet is a kind of friction material with property, and clutch surface is made up of binder, frictional property regulator, fibrous skeleton material, bulking agent etc. usually.A good clutch surface requires stable friction factor, low, the light specific gravity of wear rate, engage in use smooth-going, impact little, and the high temperature of ability more than 300 ℃, the domestic manufacturer that a lot of clutch surfaces are arranged is mainly based on the clutch surface of asbestos and glass fibre.Because asbestos are harmful, can cause environmental pollution, the car clutch face sheet that contains asbestos is forbidden producing and using in industrially developed country, along with China's improving constantly to environmental requirement, cancellation asbestos friction dough sheet has been trend of the times, the car clutch face sheet that contains simultaneously asbestos at present exists defectives such as hardness is too high, expanded by heating, and there is the friction factor instability in glass fibre, in the course of working operator's skin is had irritated influence.
Three, summary of the invention
The purpose of this invention is to provide and be to overcome deficiency of the prior art, provide a kind of pollution-free, light specific gravity, bursting strength height, stable friction performance, the car clutch face sheet that 300 ℃ of declines of high temperature are little, wearing and tearing are little.
For achieving the above object, technological scheme of the present invention is: aramid fibre does not have the asbestos clutch surface and is made by a kind of composite material of framework material, tackiness agent, frictional property regulator, mineral-filled material constituent that comprises, be characterized in containing in this framework material the aramid fiber composite fiber, to replace the asbestos in the existing product, described aramid fiber composite fiber shared weight percentage in composite material is 30-40%, and aramid fibre is 10-15% at the shared weight percentage of described composite material in the above-mentioned aramid fiber composite fiber.
The car clutch face sheet that adopts the composite material of above constituent to make, owing to do not contain asbestos, thereby it is pollution-free, coupling by aramid fibre and other material, aramid fibre light weight, intensity height, high temperature resistant, wear-resistant have been given full play to, the good characteristics of compatibility of fluffy and slurry, intensity, toughness and the working life of having improved clutch surface, thus guarantee that the clutch surface mechanical and physical performance is good.After tested, frictional behaviour of the present invention is: friction factor 0.37～0.5, wear rate≤0.3 * 10
-7Cm
3/ Nm (more than include 300 ℃ of sections).Other performance is: density 1.7 ± 0.1g/cm
3, hardness HRL50-90, resistance to flexure 60～70N/mm
2, maximum strain 22～26 * 10
-3Mm/mm.Its performance index are better than the related standards of former car clutch face sheet greatly, fully can import substitution.
Four, embodiment
Further specify embodiments of the invention below.
Aramid fibre does not have the preparation of asbestos clutch surface
By following formulated aramid fiber composite fiber 34%, wherein aramid fibre 12.5%, glass fibre 12.5%, copper wire 9% etc. are formed framework material; Tackiness agent 29%, wherein phenol-formaldehyde resin modified and compounding ingredient 11%, butadiene-styrene rubber and compounding ingredient 18%; Frictional property regulator 14% wherein increases the agent 6% that rubs, anti-friction agent 8%; Mineral-filled material 16%, wherein blanc fixe 6%, wollastonite in powder 5%, precipitated calcium carbonate 5%; Toner 7%, wherein iron oxide red 5.5%, carbon ink 1.5%.The rubber process is mixed, with solvent it is dissolved, when stirring slurry, the film for rubber for preparing and other tackiness agent, frictional property regulator, mineral-filled material etc. are added simultaneously stir the slurry pot, above-mentioned batching is prepared into the slurry of thickness in stirring the slurry pot, slurry is immersed in the framework material by treating tank, carries out drying then and weigh, re-use Stetch Wrapping Machine and be wound in blank.Blank delivered to heating pressurization on the press and make its compression moulding.The matrix band that suppresses is sent into baking oven, heat-treat.Pass through ground again, can make aramid fibre does not have the asbestos clutch surface.Its main performance index is better than the corresponding index of former car clutch face sheet greatly, and environmentally safe fully can import substitution.
Claims (2)
1, a kind of aramid fibre does not have the asbestos clutch surface, make by a kind of composite material of framework material, tackiness agent, frictional property regulator, mineral-filled material constituent that comprises, it is characterized in that, contain the aramid fiber composite fiber in the described framework material, this aramid fiber composite fiber shared weight percentage in composite material is 30-40%.
2, by the described clutch surface of claim 1, it is characterized in that aramid fibre is 10-15% at the shared weight percentage of described composite material in the described aramid fiber composite fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03150833 CN1253667C (en) | 2003-08-28 | 2003-08-28 | Aramid fibre asbestos-free clutch plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03150833 CN1253667C (en) | 2003-08-28 | 2003-08-28 | Aramid fibre asbestos-free clutch plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1515808A CN1515808A (en) | 2004-07-28 |
| CN1253667C true CN1253667C (en) | 2006-04-26 |
Family
ID=34240646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03150833 Expired - Lifetime CN1253667C (en) | 2003-08-28 | 2003-08-28 | Aramid fibre asbestos-free clutch plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1253667C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101077912B (en) * | 2006-05-25 | 2011-03-09 | 洪建栋 | Asbestos-free non-metal friction material and preparation method thereof |
| CN103030921B (en) * | 2011-09-29 | 2014-09-10 | 浙江科马摩擦材料股份有限公司 | Clutch facing without rubber winding and preparation method thereof |
| CN105202052A (en) * | 2015-09-14 | 2015-12-30 | 浙江科特汽配股份有限公司 | Clutch facing structure facilitating improvement of riveting strength and manufacturing method |
| CN105538645B (en) * | 2015-12-28 | 2017-11-24 | 浙江科马摩擦材料股份有限公司 | A kind of method that clutch surface blank is prepared using device for squeezing glue |
-
2003
- 2003-08-28 CN CN 03150833 patent/CN1253667C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1515808A (en) | 2004-07-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG KEMA FRICTION MATERIALS CO., LTD. Free format text: FORMER NAME: ZHEJIANG KEMA FRICTION MATERIAL CO. LTD. |
|
| CP03 | Change of name, title or address |
Address after: 323400 No. 312 Yang drive road, Songyang County Industrial Park, Zhejiang Patentee after: ZHEJIANG KEMA FRICTION MATERIALS Co.,Ltd. Address before: 323400 pine industrial area, Songyang County, Zhejiang Province Patentee before: ZHEJIANG KEMA FRICTION MATERIA |
|
| CX01 | Expiry of patent term |
Granted publication date: 20060426 |
|
| CX01 | Expiry of patent term |