Preparation method of resin-dispersed tungsten carbide silicon carbide-carbon fiber friction material

A tungsten carbide silicon carbide, friction material technology, applied in ceramic products, applications, household appliances, etc., can solve the problems of reduced friction performance, hidden safety hazards, etc., and achieve the effect of improving wear resistance and high manufacturing costs

Inactive Publication Date: 2017-09-01
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the friction performance of C / C composite materials will be reduced in a humid environment, which will bring serious safety hazards to the use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (1) Set the density to 1.8g / cm 3 The graphitized carbon fiber blanket is fed with a mixed gas of propane gas and nitrogen at a temperature of 900°C. The molar ratio of propane gas: nitrogen is 1:4, the flow rate is controlled at 50ml / min, and the carburizing treatment is performed for 24 hours to obtain a carburized carbon fiber blanket. ;

[0020] (2) Immerse the above-mentioned carburized carbon fiber blanket into a tungsten carbide resin slurry with a particle size of less than 0.3 μm and a content of 5%, place it in an ultrasonic cleaner and fill it with tungsten carbide for 50 minutes, take it out and dry it to obtain a filled tungsten carbide carbon fiber blanket, The resin slurry is a 5% ethanol solution containing phenolic resin;

[0021] (3) Pass the above-mentioned filled tungsten carbide carbon fiber blanket into a mixed gas of trichloromethylsilane gas, hydrogen gas and argon gas at a temperature of 900 °C, and the molar ratio of trichloromethylsilane gas: ...

Embodiment 2

[0025] (1) Set the density to 0.8g / cm 3 The graphitized carbon fiber blanket is fed with a mixture of propane gas and nitrogen at a temperature of 1000°C. The molar ratio of propane gas: nitrogen is 1:5, the flow rate is controlled at 350ml / min, and the carburizing treatment is performed for 18 hours to obtain a carburized carbon fiber blanket. ;

[0026] (2) Immerse the above-mentioned carburized carbon fiber blanket into a tungsten carbide resin slurry with a particle size of less than 0.3 μm and a content of 12%, place it in an ultrasonic cleaner and fill it with tungsten carbide for 40 minutes, take it out and dry it to obtain a filled tungsten carbide carbon fiber blanket, The resin slurry is a 12% ethanol solution containing phenolic resin;

[0027] (3) Pass the above-mentioned filled tungsten carbide carbon fiber blanket into a mixed gas of trichloromethylsilane gas, hydrogen gas and argon gas at a temperature of 1000 ° C. The molar ratio of trichloromethylsilane gas: ...

Embodiment 3

[0031] (1) Set the density to 0.1g / cm 3 The graphitized carbon fiber blanket is passed into a mixed gas of propane gas and nitrogen at a temperature of 1100 ° C. The molar ratio of propane gas: nitrogen is 1: 6, the flow rate is controlled at 600ml / min, and the carburizing treatment is performed for 10 hours to obtain a carburized carbon fiber blanket. ;

[0032] (2) Immerse the above-mentioned carburized carbon fiber blanket into a tungsten carbide resin slurry with a particle size of less than 0.3 μm and a content of 20%, place it in an ultrasonic cleaner and fill it with tungsten carbide for 30 minutes, take it out and dry it to obtain a filled tungsten carbide carbon fiber blanket, The resin slurry is a 20% ethanol solution containing phenolic resin;

[0033] (3) Pass the above-mentioned filled tungsten carbide carbon fiber blanket into a mixed gas of trichloromethylsilane gas, hydrogen gas and argon gas at a temperature of 1100 ° C. The molar ratio of trichloromethylsila...

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PUM

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Abstract

The invention provides a preparation method for a resin dispersed tungsten carbide boron carbide-carbon fiber friction material. The preparation method is characterized in that a graphitized carbon fiber blanket with the density of 0.1 g / cm<3> to 1.8 g / cm<3> is subjected to carburizing, then subjected to resin dispersed tungsten carbide filling, subjected to boron carbide deposition, subjected to burying siliconing, and then subjected to nitriding in the nitrogen atmosphere, and the resin dispersed tungsten carbide boron carbide-carbon fiber friction material is obtained. The friction material is prepared through the steps of carburizing, tungsten carbide filling, boron carbide deposition, burying siliconing, nitriding and the like on the graphitized carbon fiber blanket, and the prepared friction material is high in strength, toughness and friction performance and can adapt to various weather conditions.

Description

technical field [0001] The invention relates to a preparation method of a friction material composited by carbon fiber and ceramic material, and belongs to the technical field of composite material preparation. Background technique [0002] At present, carbon fiber and carbon (C / C) composite materials are mainly used as friction materials. Since the wear resistance of C / C composite materials is relatively low, people are looking for a method for preparing friction materials with higher wear resistance. In addition, the friction performance of C / C composite materials will be reduced in a humid environment, which will bring serious safety hazards to the use. Contents of the invention [0003] The object of the present invention is to provide a method for preparing a friction material that can overcome the above-mentioned defects, achieve higher strength, higher friction performance and adapt to various climatic conditions. Its technical solution is: [0004] The preparatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/00C04B35/80C04B35/565C04B35/56C04B35/591C04B35/65C04B35/622C04B35/634
CPCC04B35/5626C04B35/565C04B35/591C04B35/622C04B35/63476C04B35/806C04B38/00C04B2111/00362C04B2235/428C04B2235/46C04B2235/48C04B2235/5248C04B2235/5256C04B2235/616C04B2235/6567C04B2235/658C04B35/584
Inventor 唐竹兴
Owner SHANDONG UNIV OF TECH
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