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Low-resin friction material and preparation method thereof

A friction material and resin technology, applied in the field of friction materials, can solve the problems of wear resistance, thermal recession, braking instability, etc.

Inactive Publication Date: 2018-04-13
保成知识产权运营(广州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Moreover, the existing friction materials also have problems such as serious thermal decay during braking, non-wear resistance, and unstable braking.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A low resin friction material, comprising the following raw materials in parts by weight: 6 parts of phenolic resin, 10 parts of nitrile rubber, 28 parts of steel fiber, 5 parts of silica fume cotton, 6 parts of calcium sulfate whiskers, 1 part of iron oxide, lubricant 0 parts, adhesive 3 parts.

[0024] A method for preparing a low-resin friction material proposed in this embodiment includes the following steps:

[0025] S1, weigh each component material according to the specified weight percentage; and the particle size of nitrile rubber is 0-60 mesh; ; Silica fume cotton is selected with an aspect ratio greater than 18; the particle size of calcium sulfate whiskers is 1000-3250 mesh; the particle size of iron oxide is 0-325 mesh; the particle size of lubricant is 0-325 mesh;

[0026] S2, add the materials of each component weighed in step S1 into the mixer respectively, the mixing time is 35-45 minutes, add silicon carbide during the stirring process, the volume fra...

Embodiment 2

[0031] A low resin friction material, comprising the following raw materials in parts by weight: 10 parts of phenolic resin, 14 parts of nitrile rubber, 34 parts of steel fiber, 8 parts of silica fume cotton, 10 parts of calcium sulfate whiskers, 4 parts of iron oxide, lubricant 5 parts, 15 parts of adhesive.

[0032] A method for preparing a low-resin friction material proposed in this embodiment includes the following steps:

[0033] S1, weigh each component material according to the specified weight percentage; and the particle size of nitrile rubber is 55 mesh; the particle size of phenolic resin is 150 mesh; the steel fiber is DF00-3.5, the particle size is 60 mesh; The diameter ratio is greater than 18; the particle size of calcium sulfate whiskers is 2680 mesh; the particle size of iron oxide is 263 mesh; the particle size of lubricant is 158 mesh;

[0034] S2, add the materials of each component weighed in step S1 into the mixer respectively, the mixing time is 40 min...

Embodiment 3

[0039] A low resin friction material, comprising the following raw materials in parts by weight: 10 parts of phenolic resin, 114 parts of nitrile rubber, 28 parts of steel fiber, 8 parts of silica fume cotton, 6 parts of calcium sulfate whiskers, 1 part of iron oxide, lubricant 5 parts, 3 parts of adhesive.

[0040] A low-resin friction material and a preparation method thereof proposed in this embodiment include the following steps:

[0041] S1, weigh each component material according to the specified weight percentage; and the particle size of nitrile rubber is 55 mesh; the particle size of phenolic resin is 149 mesh; the steel fiber is DF00-3.5, the particle size is 60 mesh; The diameter ratio is greater than 18; the particle size of calcium sulfate whiskers is 2000 mesh; the particle size of iron oxide is 300 mesh; the particle size of lubricant is 250 mesh;

[0042] S2, add the materials of each component weighed in step S1 into the mixer respectively, the mixing time is...

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PUM

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Abstract

The invention discloses a low-resin friction material and a preparation method thereof. The low-resin friction material comprises the following raw materials in parts by weight: 6-10 parts of phenolicresin, 10-14 parts of nitrile rubber, 28-34 parts of steel fibers, 5-8 parts of wollastonite, 6-10 parts of calcium sulfate whiskers, 1-4 parts of ferric oxide, 0-5 parts of a lubricating agent and 3-15 parts of an adhesive. The invention further provides a preparation method of the low-resin friction material. The preparation method comprises the following step: S1, weighing various component materials according to the specified weight percent. The granularity of the nitrile rubber is 0-60 meshes, the granularity of the phenolic resin is 0-200 meshes, the steel fibers are in DF00-3.5 TYPE, the granularity of the steel fibers is 0-80 meshes, the draw ratio of the wollastonite is greater than 18, the granularity of the calcium sulfate whiskers is 1,000-3250 meshes, the granularity of the ferric oxide is 0-325 meshes, and the granularity of the lubricating agent is 0-325 meshes. The low-resin friction material has the characteristics that the use amount of the resin is small, the cost is low, heat fading in a braking process is small, braking is stable, and the low-resin friction material is wear-resistant.

Description

technical field [0001] The invention relates to the technical field of friction materials, in particular to a low-resin friction material and a preparation method thereof. Background technique [0002] Friction material is a component material used in power machinery that relies on friction to perform braking and transmission functions. It is widely used in automobiles, trains, aircraft and various construction machinery and equipment. Friction materials for automobiles are mainly composed of binders, fiber reinforced materials, friction performance modifiers and fillers, which are mixed and pressed. The main component of the binder is phenolic resin, and its performance directly affects the thermal decay performance, recovery performance, wear performance and mechanical performance of the friction material. Since the 1980s, with the development of the automobile industry in the direction of high speed, heavy load, energy saving, comfort, and environmental protection, highe...

Claims

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Application Information

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IPC IPC(8): C09K3/14
Inventor 杨旭张凤琼
Owner 保成知识产权运营(广州)有限公司