Copper-free ceramic type friction material and preparation method thereof

A copper-free ceramic type and friction material technology, which is applied in the field of friction materials, can solve the problems of friction materials such as thermal degradation resistance and poor friction stability, and achieve the effects of reducing static electricity, improving thermal degradation resistance, and best braking effect
CN101948673BInactive Publication Date: 2013-06-26南京钛威科技有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
南京钛威科技有限公司
Publication Date
2013-06-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a copper-free ceramic type friction material and a preparation method thereof. The friction material at least comprises 2 to 30 mass percent of alkaline earth-based metallic compound and 2 to 30 mass percent of carbon fiber, wherein the alkaline earth-based metallic compound is MxFeyTiOz, M is alkaline earth metallic element, namely Be, Mg, Ca, Sr or Ba, x is 0.2 to 2, y is 1 to 2, and z is 4 to 16. The friction material prepared by the method has the advantages of: high friction and wear property, higher heat conductivity, high performance of resisting high-temperature recession, and capacity of efficiently reducing the temperature of a friction surface in the braking process.
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Description

technical field

[0001] The invention belongs to the field of friction materials, in particular to an environment-friendly brake pad material free of copper and asbestos. Background technique

[0002] Nowadays, many cars are developing towards high speed and high load, which puts forward more stringent requirements for braking materials. For example, the instantaneous temperature of disc brakes can reach 400-600°C during braking, and the braking temperature on some long slopes can reach above 800°C. , it is urgent to develop a high-performance and environmentally friendly friction material. The ABS (anti-lock braking) system commonly used in high-end cars. When the ABS system is working, it is equivalent to point braking at a very high frequency. How to quickly dissipate the accumulated heat in the braking gap requires the friction material to have a high thermal conductivity. At the same time, the material also needs to have a good Excellent friction and wear performance, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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