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Carbon-based magnetic wear-resisting particle for friction material and preparation method thereof

A friction material and wear-resistant particle technology, applied in chemical instruments and methods, other chemical processes, etc., can solve problems such as not being fully satisfied, and achieve the effects of low cost, broad market prospects, and easy manufacturing.

Active Publication Date: 2019-04-09
杭州润福春科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The friction material industry has developed rapidly in recent years, and the products it provides are complete, but they cannot fully meet people's needs in terms of safety, comfort, durability, high temperature resistance, noise, etc.

Method used

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  • Carbon-based magnetic wear-resisting particle for friction material and preparation method thereof
  • Carbon-based magnetic wear-resisting particle for friction material and preparation method thereof
  • Carbon-based magnetic wear-resisting particle for friction material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The preparation method is:

[0022] (1) Mixing: Put 2200g of pretreated carbon fiber and 3100g of pretreated silicon carbide fiber into a high-speed mixer, mix for 6 minutes to form carbon fiber silicon carbide composite fiber, and then take it out of the high-speed mixer for use;

[0023] (2) Ball milling: mix the mixed carbon fiber silicon carbide composite fiber with 1100g polyethylene oxide, 600g fatty acid, 1000g graphite, 500g NdFeB, 600g alnico, 1200g hexahydrate ferric chloride, 1200g orthosilicate Ethyl vinegar and 400g of titanium tetraisopropoxide were put into the ball mill at a speed of 450rpm / min, and mixed for 180 minutes to make it evenly mixed and then taken out for later use;

[0024] (3) Calcination: put the homogeneously mixed mixture into a tube furnace and pass through argon to carbonize at 900°C for 300 minutes;

[0025] (4) Etching: Put the carbonized mixture into 90% glacial acetic acid to dissolve and etch for 90 minutes, then take out the car...

Embodiment 2

[0030] The preparation method is:

[0031] (1) Mixing: Put 2500g of pretreated carbon fiber and 3500g of pretreated silicon carbide fiber into a high-speed mixer, mix for 8 minutes to form carbon fiber silicon carbide composite fiber, and then take it out of the high-speed mixer for use;

[0032] (2) Ball milling: mix the mixed carbon fiber silicon carbide composite fiber with 1300g polyethylene oxide, 700g fatty acid, 1200g graphite, 600g NdFeB, 700g alnico, 1500g hexahydrate ferric chloride, 1300g orthosilicate Ethyl vinegar and 450g of titanium tetraisopropoxide are put into the ball mill at a speed of 480rpm / min and mixed for 200 minutes to make it evenly mixed and then taken out for later use;

[0033] (3) Calcination: Put the homogeneously mixed mixture into a tube furnace and pass through argon gas to carbonize at 920°C for 330-minutes;

[0034] (4) Etching: Put the carbonized mixture into 92% glacial acetic acid to dissolve and etch for 95 minutes, then take out the c...

Embodiment 3

[0039] (1) Mixing: Put 2800g of pretreated carbon fibers and 3900g of pretreated silicon carbide fibers into a high-speed mixer, mix for 9 minutes to form carbon fiber silicon carbide composite fibers, and then take them out from the high-speed mixer for use;

[0040] (2) Ball milling: mix the mixed carbon fiber silicon carbide composite fiber with 1500g polyethylene oxide, 800g fatty acid, 1200g graphite, 700g NdFeB, 800g alnico, 1700g hexahydrate ferric chloride, 1400g orthosilicate Ethyl vinegar and 600g of titanium tetraisopropoxide are put into the ball mill at a speed of 500rpm / min and mixed for 220 minutes to make it evenly mixed and then taken out for later use;

[0041] (3) Calcination: put the homogeneously mixed mixture into a tube furnace and pass through argon gas to carbonize at 950°C for 360 minutes;

[0042] (4) Etching: Put the carbonized mixture into 95% glacial acetic acid to dissolve and etch for 100 minutes, then take out the carbonized mixture and wash it...

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Abstract

The invention relates to a carbon-based magnetic wear-resisting particle for a friction material and a preparation method thereof. According to the technical scheme, the carbon-based magnetic wear-resisting particle is characterized by containing the raw materials by weight: 2200g-2800g of preprocessed carbon fibers, 3100g-3900g of preprocessed silicon carbide fibers, 1100g-1500g of polyethylene oxide, 600g-800g of fatty acid, 1000g-1200g of graphite, 600g-700g of neodymium iron boron, 600g-800g of aluminum nickel cobalt, 1200g-1700g of iron chloride hexahydrate, 1200g-1400g of ethyl orthosilicate vinegar and 400g-600g of tetraisopropyl orthotitanate, wherein the diameters of the silicon carbide fibers are 35-60 microns, and the lengths of the silicon carbide fibers are 3mm-5mm; and the lengths of the carbon fibers are 5mm-8mm, and the diameters of the carbon fibers are 0.2mm-0.5mm. The carbon-based magnetic wear-resisting particle has stable friction performance and certain compression strength and is capable of absorbing vibration and reducing noise.

Description

technical field [0001] The invention relates to a friction material and a preparation method thereof, in particular to carbon-based magnetic wear-resistant particles for the friction material and a preparation method thereof. Background technique [0002] As a product of modern industry, friction materials play an increasingly important role in the national economy and people's social life. The friction material industry has developed rapidly in recent years and provides a complete range of products, but it still cannot fully meet people's needs in terms of safety, comfort, durability, high temperature resistance, and noise. Therefore, how to solve these problems is the top priority in the industry at present. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned background technology, and provide a carbon-based magnetic wear-resistant particle for friction materials and a preparation method thereof....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/14
CPCC09K3/1436
Inventor 章春华钱春翔姚美琴范伟峰汤群英杨攀
Owner 杭州润福春科技有限公司
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