Heavy-duty vehicle disk brake pad frictional material and brake pad preparing process

A technology of disc brake pads and friction materials, which is applied in the field of brake pads, can solve the problems of unsatisfactory service life, rising vehicle costs, and the development of brake pads, etc., to achieve enhanced braking sensitivity and smoothness, enhanced friction performance, and enhanced thermal stability sexual effect

Pending Publication Date: 2019-04-23
山东安途制动材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Secondly, the lifespan of the existing brake pads under mountainous road conditions is much shorter than that under normal road conditions, and some of them can only run a few thousand kilometers. Even some original products have unsatisf

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A disc brake pad friction material for heavy vehicles, characterized in that it is mainly composed of the following raw materials in parts by weight: 8 parts of boron modified phenolic resin, 3 parts of carbon fiber, 2 parts of aramid pulp, 20 parts of steel wool, 5 parts of basalt long fiber, 7 parts of composite sulfide, 4 parts of aluminum oxide, 4 parts of zinc oxide, 10 parts of graphite, 8 parts of calcium carbonate whisker, 5 parts of hydrated calcium silicate, 2 parts of EPDM rubber particles, 5 parts of black friction powder parts and 5 parts of vermiculite.

[0019] The length of the long basalt fibers is 3-6mm.

[0020] The active components of the composite sulfide are mainly iron sulfide, copper sulfide, tin sulfide and manganese sulfide.

[0021] A process for preparing disc brake pads using disc brake pad friction materials for heavy vehicles, comprising the following steps:

[0022] (1) Mixing of raw materials: Weigh each raw material component accordi...

Embodiment 2

[0028] A disc brake pad friction material for heavy vehicles, mainly composed of the following raw materials in parts by weight: 5 parts of boron-modified phenolic resin, 1 part of carbon fiber, 1 part of aramid pulp, 18 parts of steel wool, and 3 parts of long basalt fiber 5 parts of composite sulfide, 2 parts of aluminum oxide, 2 parts of zinc oxide, 8 parts of graphite, 5 parts of calcium carbonate whiskers, 3 parts of hydrated calcium silicate, 1 part of EPDM rubber particles, 3 parts of black friction powder and vermiculite 4 parts.

[0029] The length of the long basalt fibers is 3-6mm.

[0030] The active components of the composite sulfide are mainly iron sulfide, copper sulfide, tin sulfide and manganese sulfide.

[0031] A process for preparing disc brake pads using disc brake pad friction materials for heavy vehicles, comprising the following steps:

[0032] (1) Mixing of raw materials: Weigh each raw material component according to the specified parts by weight, ...

Embodiment 3

[0038] A disc brake pad friction material for heavy vehicles, mainly composed of the following raw materials in parts by weight: 10 parts of boron-modified phenolic resin, 5 parts of carbon fiber, 5 parts of aramid pulp, 25 parts of steel wool, and 8 parts of long basalt fiber 8 parts, 8 parts of composite sulfide, 6 parts of aluminum oxide, 6 parts of zinc oxide, 12 parts of graphite, 10 parts of calcium carbonate whiskers, 8 parts of hydrated calcium silicate, 2 parts of EPDM rubber particles, 6 parts of black friction powder and vermiculite 6 servings.

[0039] The length of the long basalt fibers is 3-6mm.

[0040] The active components of the composite sulfide are mainly iron sulfide, copper sulfide, tin sulfide and manganese sulfide.

[0041] A process for preparing a disc brake pad using a disc brake pad friction material for heavy vehicles, comprising the following steps:

[0042] (1) Mixing of raw materials: Weigh each raw material component according to the specified...

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Abstract

The invention relates to the technical field of brake pads, particularly to a heavy-duty vehicle disk brake pad frictional material and a brake pad preparing process. The heavy-duty vehicle disk brakepad frictional material is mainly composed of raw materials including, by weight part, 5-10 parts of boron-modified phenolic resin, 1-5 parts of carbon fiber, 1-5 parts of PPTA-pulp (poly-p-phenyleneterephthamide pulp), 18-25 parts of steel wool, 3-8 parts of basalt long fiber, 5-8 parts of complex sulfide, 2-6 parts of aluminum oxide, 2-6 parts of zinc oxide, 8-12 parts of graphite, 5-10 partsof calcium carbonate whisker, 3-8 parts of hydrated calcium silicate, 1-2 parts of EPDM (ethylene-propylene-diene monomer) rubber particles, 3-6 parts of black frictional powder and 4-6 parts of vermiculite. According to the heavy-duty vehicle disk brake pad frictional material and the brake pad preparing process, a prepared brake pad can achieve a good frictional factor of 0.38-0.45 within a temperature interval of 100-800 DEG C and a wear rate of 0.12*10<-7> cm3 (N*m)<-1> at 350 DEG C. Field use in mountainous regions in Yunnan, Szechwan, Guizhou, Tibet and the like proves that the brake padis stable in braking, sensitive in downhill braking and free from smoking and achieves a service life of 70-100 thousand kilometers.

Description

technical field [0001] The invention relates to the technical field of brake pads, in particular to a disc brake pad friction material for heavy vehicles and a preparation process for the brake pads. Background technique [0002] With the rapid development of the world economy, the demand for logistics is also increasing. As a convenient, fast and affordable mode of transportation, road transportation is becoming more and more popular. As the main vehicle of road transportation, the number of heavy-duty trucks is also increasing day by day. Due to the large weight of heavy-duty vehicles, the requirements for the braking system are relatively high, especially in the case of complex road conditions in mountainous areas, the requirements for brake pads are more stringent than ordinary road conditions. First of all, in mountainous road conditions, the brake pads are required to have excellent temperature resistance. If the brake disc is continuously downhill, the temperature o...

Claims

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Application Information

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IPC IPC(8): C09K3/14C08J5/14F16D69/02
CPCF16D69/028
Inventor 李玉明陈占玲于俊德万建林朱跃龙
Owner 山东安途制动材料有限公司
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