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Micro-copper-formulated ceramic brake pad

A brake pad and formula technology, applied in the field of ceramic brake pads, can solve the problems of excessive copper and other heavy metal substances, easy decay of the friction coefficient, cracks on the friction surface, etc., achieving long service life, no brake squeal, friction The effect of coefficient stabilization

Inactive Publication Date: 2014-05-28
RUIYANG AUTOMOTIVE MATERIALS XIANTAO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a ceramic brake pad with low braking noise, good heat conduction effect, and low copper content friction material, which solves the problem that the content of copper and other heavy metals in the existing automobile brake pads is seriously exceeded, and the noise during braking is high, which is harmful to the environment. Larger, 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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031]Example 1: 8 parts of aramid pulp (100 grams each, the same below), 8 parts of carbon fiber, 2 parts of magnesium hydroxide, 0.5 parts of brass cotton, 5 parts of brown corundum, 6 parts of antimony sulfide, 15 parts of ceramic fiber, 3.5 parts of superfine iron oxide powder, 8 parts of calcium sulfate whisker, 9 parts of potassium titanate, 10 parts of barite, 5.5 parts of flake graphite, 6 parts of calcined petroleum coke, 1.5 parts of nano hollow floating beads , 3 parts of flake aluminum powder, 2 parts of nitrile rubber powder, 5 parts of cashew nut shell oil modified phenolic resin, 2 parts of zircon, 3 parts of boron nitride, 0.3 part of zinc oxide, 3 parts of benzoxazine resin In the high-speed disperser, stir it into a uniformly dispersed powder, then take out the friction material composition, put it into a forming mold, press it, and then compound it with a steel back, put it into a flat vulcanizer at a high temperature of 270 ° C, and a pressure of 18 MPa. 15...

Embodiment 2

[0032] Example 2: 9 parts of aramid pulp, 9.2 parts of carbon fiber, 2.5 parts of magnesium hydroxide, 0.5 parts of brass cotton, 5 parts of brown corundum, 6.5 parts of antimony sulfide, 15.7 parts of ceramic fiber, and ultrafine iron oxide 3.5 parts of powder, 8.5 parts of calcium sulfate whiskers, 9.7 parts of potassium titanate, 10.5 parts of barite, 5.5 parts of flake graphite, 6.5 parts of calcined petroleum coke, 1.5 parts of nano hollow floating beads, 3.5 parts of flake aluminum powder, nitrile Pour 2.5 parts of rubber powder, 5.5 parts of cashew nut shell oil modified phenolic resin, 2.25 parts of zircon, 3.5 parts of boron nitride, 0.35 parts of zinc oxide, and 3.5 parts of benzoxazine resin into the high-speed disperser, and stir to form a uniform dispersion Take out the friction material composition after it is in powder form, put it into a forming mold and press it into shape, then compound it with a steel back, put it into a flat vulcanizer at a high temperature ...

Embodiment 3

[0033] Example 3: By weight, 10 parts of aramid pulp, 10.5 parts of carbon fiber, 3 parts of magnesium hydroxide, 0.75 parts of brass cotton, 5.5 parts of brown corundum, 7 parts of antimony sulfide, 16.5 parts of ceramic fiber, and ultrafine iron oxide 4.3 parts of powder, 9 parts of calcium sulfate whiskers, 10.5 parts of potassium titanate, 11 parts of barite, 6.2 parts of flake graphite, 7 parts of calcined petroleum coke, 1.75 parts of nano hollow floating beads, 4 parts of flake aluminum powder, nitrile Pour 3 parts of rubber powder, 6 parts of cashew nut shell oil modified phenolic resin, 2.5 parts of zircon, 4 parts of boron nitride, 0.4 part of zinc oxide, and 4 parts of benzoxazine resin into the high-speed disperser, and stir to form a uniform dispersion Take out the friction material composition after it is in powder form, put it into a forming mold and press it into shape, then compound it with a steel back, put it into a flat vulcanizer at a high temperature of 27...

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Abstract

A micro-copper-formulated ceramic brake pad is made with aramid pulp, carbon fiber, magnesium hydroxide, copper fiber, brown fused alumina, antimony sulfide, ceramic fiber, superfine iron oxide powder, calcium sulfate whisker, potassium titanate, barite, crystalline flake graphite, calcined petroleum coke, nano hollow float beads, flake aluminum powder, nitrile butadiene rubber powder, cashew nut shell oil modified phenolic resin, zirconite, boron nitride, zinc oxide, and benzoxazine resin. The components are reasonably matched, and advantages of the materials can be given to full play in abrasive materials. The novel fiber materials are reasonably composited, performance defects of the materials can be mutually complemented, and high performance is achieved through mutual connective action. The micro-copper-formulated ceramic brake pad has low content of heavy metals and smaller than 0.5% of copper content and therefore, is very environment friendly.

Description

technical field [0001] The invention relates to an automobile brake pad, in particular to a ceramic brake pad with micro-copper formula. 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 are studying how to overcome the spread ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D69/02C09K3/14C04B26/12C04B14/38
Inventor 张泽伟
Owner RUIYANG AUTOMOTIVE MATERIALS XIANTAO
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