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A kind of nano calcium silicate ceramic formula friction material and its preparation method

A technology of nano-calcium silicate and friction materials, applied in friction linings, ceramic molding machines, chemical instruments and methods, etc., can solve problems such as copper dust pollution and noise

Active Publication Date: 2019-02-05
浙江万赛汽车零部件股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a new type of nano-calcium silicate ceramic formula friction material and its preparation method, so as to solve the defects of copper dust pollution and high noise in automobile brake pads in the prior art

Method used

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  • A kind of nano calcium silicate ceramic formula friction material and its preparation method
  • A kind of nano calcium silicate ceramic formula friction material and its preparation method
  • A kind of nano calcium silicate ceramic formula friction material and its preparation method

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Embodiment 1

[0019] A nano-calcium silicate ceramic formula friction material in this embodiment is composed of the following components in terms of weight percentage:

[0020]

[0021] In this embodiment, mineral fibers include aluminum silicate fiber and basalt fiber, wherein aluminum silicate fiber accounts for 8% of the total weight of the friction material, basalt fiber accounts for 9% of the total weight of the friction material, and aramid pulp accounts for the total weight of the friction material 3%.

[0022] Further, the filler in this embodiment may be one or a combination of barium sulfate and calcium carbonate.

[0023] A preparation method of the above-mentioned nano-calcium silicate ceramic formula friction material, comprising the following steps:

[0024] (1) Mixing, the mixing is completed in two stages. In the first stage, fillers, mineral fibers and a small amount of graphite are added, mixed and dispersed; in the second stage, the remaining component materials are ...

Embodiment 2

[0029] A nano-calcium silicate ceramic formula friction material in this embodiment is composed of the following components in terms of weight percentage:

[0030]

[0031] In this embodiment, mineral fibers include aluminum silicate fiber and basalt fiber, wherein aluminum silicate fiber accounts for 9% of the total weight of the friction material, basalt fiber accounts for 10% of the total weight of the friction material, and aramid pulp accounts for the total weight of the friction material 5%.

[0032] Further, the filler in this embodiment may be one or a combination of barium sulfate and calcium carbonate.

[0033] A preparation method of the above-mentioned nano-calcium silicate ceramic formula friction material, comprising the following steps:

[0034] (1) Mixing, the mixing is completed in two stages. In the first stage, fillers, mineral fibers and a small amount of graphite are added, mixed and dispersed; in the second stage, the remaining component materials are...

Embodiment 3

[0039] A nano-calcium silicate ceramic formula friction material in this embodiment is composed of the following components in terms of weight percentage:

[0040]

[0041] In this embodiment, the mineral fibers include aluminum silicate fiber, basalt fiber and aramid pulp, wherein aluminum silicate fiber accounts for 7.5% of the total weight of the friction material, basalt fiber accounts for 8.5% of the total weight of the friction material, and aramid pulp 4% of the total weight of the friction material.

[0042] Further, the filler in this embodiment may be one or a combination of barium sulfate and calcium carbonate.

[0043] A method for preparing the above-mentioned nano-calcium silicate ceramic formula friction material, comprising the following steps:

[0044] (1) Mixing, the mixing is completed in two stages. In the first stage, fillers, mineral fibers and a small amount of graphite are added, mixed and dispersed; in the second stage, the remaining component mate...

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Abstract

The present invention relates to a friction material for an automobile brake pad and a method for producing the same, and specifically discloses a nano-calcium silicate ceramic formulated friction material and a preparation method thereof. Nano-sized calcium silicate is added into the friction material components to increase the porosity of the friction material to achieve the purpose of increasing the compression ratio, and finally to achieve the purpose of eliminating brake noise. Since the nano-calcium silicate material is spherical with a hollow center under a micro condition, the nano-calcium silicate material has the characteristics of low density and capability of withstanding the relatively high temperature. By adding low-density nano-calcium silicate, the density of the friction material can be reduced, so that the material usage amount is reduced, and the purpose of reducing costs is achieved.

Description

technical field [0001] The invention relates to a friction material for an automobile brake pad and a preparation method thereof, in particular to a nano-calcium silicate ceramic formula friction material and a preparation method thereof. Background technique [0002] At present, the friction materials commonly used in automobile brake pads contain 5-10% copper. During the working process of the friction materials, copper dust will be generated, which will pollute the environment. In the existing ceramic formula brake pads, the fiber-reinforced materials used are mainly silicate mineral fibers or alumina mineral fibers. Due to the limitation of the production process, there are some hard slag balls in the fibers, which are very easy to use during use. Noise is generated, the driver's driving experience is reduced, and the comfort is poor. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a novel nano-calcium silic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/12B28B3/02B28B1/50F16D69/02C09K3/14
CPCB28B1/50B28B3/02C04B26/122C09K3/14F16D69/02F16D2200/006F16D2200/0082C04B14/303C04B22/08C04B14/304C04B14/043C04B14/4656C04B14/4643C04B16/0691C04B14/024C04B22/14C04B14/28C04B14/368
Inventor 洪建栋张丙红
Owner 浙江万赛汽车零部件股份有限公司
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