Copper-free nano ceramic brake pad

A brake pad, copper nano technology, applied in the field of copper-free nano ceramic brake pads, to achieve the effect of no noise, low product wear and comfortable braking

Pending Publication Date: 2020-10-30
东营宝丰汽车配件有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As one of the key raw materials in the ceramic organic formula, copper has important functions such as heat conduction, stable friction coefficient, formation of transfer film, and wear reduction. No material can directly replace copper in the original formula without changing its performance.

Method used

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  • Copper-free nano ceramic brake pad
  • Copper-free nano ceramic brake pad
  • Copper-free nano ceramic brake pad

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Experimental program
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Embodiment Construction

[0010] The present invention will be further described below in conjunction with the accompanying drawings.

[0011] A copper-free nano ceramic brake pad, comprising phenolic resin, mineral fiber, iron oxide, graphite, barium sulfate, aramid fiber, potassium titanate, rubber powder and nano silicon dioxide coated hexagonal boron nitride, the brake The weight percent of sheet component is:

[0012]

[0013]

[0014] The nano silicon dioxide coated hexagonal boron nitride is spherical.

[0015] A copper-free nano-ceramic brake pad. Spherical nano-silica coated hexagonal boron nitride is introduced into the friction material as a friction performance modifier. When braking, the surface layer of nano-silica and graphite and other lubricants work together to maintain friction. The coefficient is stable, and the transfer film is completed. As the braking temperature rises, the graphite gradually loses its lubricity, while the cladding layer opens, and a new transfer film is f...

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PUM

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Abstract

The invention provides a copper-free nano ceramic brake pad. The brake pad comprises the following components in percentage by weight: 10% of phenolic resin, 17% of mineral fiber, 6% of ferric oxide,10% of graphite, 16% of barium sulfate, 4% of aramid fiber, 20% of potassium titanate, 5% of rubber powder and 12% of nano silicon dioxide coated hexagonal boron nitride. The brake pad has the advantages of being stable in friction coefficient, small in product abrasion, comfortable in braking in the using process and free of noise, and the service life reaches more than 70000 kilometers.

Description

technical field [0001] The invention relates to the field of automobile industry, in particular to a copper-free nano-ceramic brake pad. Background technique [0002] The most popular brake pads as the key parts of automobiles are ceramic organic formula brake pads. This kind of material has the characteristics of stable friction, no pollution, low density, good comfort, and long service life. However, this type of formula design contains 5- 15% copper. In 2015, the United States found that heavy metals contained in copper seriously polluted water quality, and took the lead in proposing to gradually restrict or even ban the use of copper in brake pad friction materials, requiring that the copper content be less than 5% after 2021 and less than 0.5% after 2025. As one of the key raw materials in the ceramic organic formula, copper has important functions such as heat conduction, stable friction coefficient, formation of transfer film, and wear reduction. No material can dire...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/12C04B35/462C04B35/80
CPCC04B26/122C04B35/80C04B35/462C04B2111/00362C04B2235/3272C04B2235/3215C04B2235/425C04B2235/5212C04B2235/48C04B2235/3418C04B2235/386C04B2235/602C04B2235/96C04B14/38C04B14/308C04B14/024C04B14/368C04B16/0691C04B22/08C04B24/00C04B14/06C04B14/327
Inventor 田式国金鑫许崇海王伟平王飞王向东王德军陈照强肖光春衣明东
Owner 东营宝丰汽车配件有限公司
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