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Environment-friendly brake pad adopting copper-free microcrystalline friction materials

A friction material and brake pad technology, applied in the field of environmentally friendly brake pads, can solve the problems of easy decay of the friction coefficient, cracks on the friction surface, expansion of the friction material, etc., and achieves the effect of beautiful surface, stable friction coefficient, and improved friction coefficient.

Active Publication Date: 2014-05-28
摩擦一号制动科技(仙桃)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a microcrystalline composition brake pad with low braking noise, good heat conduction effect, and low copper content, which solves the problem that the content of copper and other heavy metals in the existing automobile brake pads exceeds the standard, and the noise during braking is high. The environment is more harmful, the friction coefficient is easy to decline, and even the friction material expands, and there are technical problems such as cracks on the friction surface.

Method used

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  • Environment-friendly brake pad adopting copper-free microcrystalline friction materials

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Embodiment 1: 8 parts of acrylic pulp (100 grams per part, the same below), 12 parts of mullite ceramic fiber, 3 parts of brucite fiber, 4 parts of nano tin powder, 10 parts of zinc sulfide, brown 5 parts of corundum, 6 parts of antimony sulfide, 8 parts of cellulose fiber, 3.5 parts of iron black, 5 parts of calcium carbonate whiskers, 8 parts of calcium sulfate whiskers, 10 parts of potassium titanate, 5.5 parts of flake graphite, 6 parts of calcined petroleum coke 3 parts of flake aluminum powder, 2 parts of nitrile rubber powder, 6 parts of phenolic resin, 0.8 parts of nano-manganese hydroxide, and 6 parts of molybdenum disulfide. The composition is put into a forming mold and pressed into shape, then compounded with a steel back and placed in a flat vulcanizer at a high temperature of 270°C and a pressure of 18MPa for 15 minutes, then the brake pads are taken out, and the burrs are removed to become a finished product.

Embodiment 2

[0029] Embodiment 2: 10 parts of acrylic fiber pulp, 13.5 parts of mullite ceramic fiber, 3.5 parts of brucite fiber, 5 parts of nano tin powder, 11 parts of zinc sulfide, 5.25 parts of brown corundum, 6.5 parts of antimony sulfide, 8.5 parts of cellulose fiber, 4.6 parts of iron black, 6 parts of calcium carbonate whiskers, 9.5 parts of calcium sulfate whiskers, 13.3 parts of potassium titanate, 6.5 parts of flake graphite, 7 parts of calcined petroleum coke, 4 parts of flake aluminum powder, diced 4 parts of nitrile rubber powder, 9 parts of phenolic resin, 1.1 parts of nano-manganese hydroxide, and 9 parts of molybdenum disulfide are poured into a high-speed disperser, stirred into a uniformly dispersed powder, and then the friction material composition is taken out and put into a forming mold for pressing and forming , and then combined with the steel back, put it into a flat vulcanizing machine at a high temperature of 270 ° C and a pressure of 18 MPa, and keep it for 15 m...

Embodiment 3

[0030]Embodiment 3: by weight 9 parts of acrylic pulp, 15 parts of mullite ceramic fiber, 4 parts of brucite fiber, 6 parts of nano-tin powder, 11 parts of zinc sulfide, 5.5 parts of brown corundum, 7 parts of antimony sulfide, 9 parts of cellulose fiber, 4.25 parts of iron black, 7 parts of calcium carbonate whiskers, 9 parts of calcium sulfate whiskers, 12 parts of potassium titanate, 6.3 parts of flake graphite, 7 parts of calcined petroleum coke, 4 parts of flake aluminum powder, diced Pour 3 parts of nitrile rubber powder, 8 parts of phenolic resin, 1 part of nano-manganese hydroxide, and 8 parts of molybdenum disulfide into a high-speed disperser, stir into a uniformly dispersed powder, take out the friction material composition and put it into a forming mold for pressing. , and then combined with the steel back, put it into a flat vulcanizing machine at a high temperature of 270°C and a pressure of 18MPa, and keep it for 15 minutes, then take out the brake pads, remove t...

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Abstract

An environment-friendly brake pad adopting copper-free microcrystalline friction materials is made from components including acrylic pulp, mullite ceramic fibers, brucite fibers, nano tin powder, zinc sulfide, brown aluminum oxide, antimony sulfide, cellulosic fibers, iron black, calcium carbonate whiskers, calcium sulfate whiskers, potassium titanate, crystalline flake graphite, calcined petroleum coke, flake aluminum powder, nitrile rubber powder, phenolic resin, nanometer manganese hydroxide and molybdenum disulfide. Through reasonable collocation of the multiple components, advantages of the various components given full play to the friction materials can be guaranteed. By the reasonable collocation of the new fiber materials, the defect of respect performance can be made up, and high performance can be produced due to mutual influenced action. The environment-friendly brake pad is good in resistance to high-temperature recession, long in service life, good in wear-resisting performance, stable in friction coefficient and environment friendly.

Description

technical field [0001] The invention relates to an automobile brake pad, in particular to an environment-friendly brake pad using copper-free microcrystalline friction material. Background technique [0002] The friction materials used in the automobile brake pads we use now contain a lot of heavy metals, including copper, chromium, cadmium, and lead metals. Every time a car brakes, a small amount of heavy metal dust is released and accumulated in the environment, causing harm. For example, cadmium compounds are absorbed by the body through breathing and accumulate in the liver or kidney, causing harm to the human kidney and liver. After entering the environment, copper-containing dust can cause biological toxicity to fish such as salmon. According to relevant data, 30% of copper pollution in the environment is caused by automobile brake pads. Therefore, we must pay attention to the impact of automobile brake pads on the environment. At present, countries around the world...

Claims

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Application Information

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IPC IPC(8): F16D65/04C09K3/14
Inventor 张泽伟
Owner 摩擦一号制动科技(仙桃)有限公司
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