Preparing method for synthetic fat dispersed vanadium boride silicon carbide-carbon fiber friction material

A technology of vanadium boride silicon carbide and friction materials, which is applied in ceramic products, applications, household appliances, etc., can solve the problems of safety hazards and friction performance reduction, and achieve the effect of improving wear resistance and high manufacturing cost

Inactive Publication Date: 2016-06-01
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 reduc

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0018] Example 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 synthetic grease slurry with a particle size of less than 0.3 μm and a content of 5% vanadium boride, place it in an ultrasonic cleaner and fill it with vanadium boride for 50 minutes, take it out and dry it to obtain a filled boride Vanadium carbon fiber blanket, the synthetic fat slurry is an ethanol solution containing 5% synthetic fat;

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

Example Embodiment

[0024] Example 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 in a synthetic grease slurry with a particle size of less than 0.3 μm and a content of 12% vanadium boride, place it in an ultrasonic cleaner and fill it with vanadium boride for 40 minutes, take it out and dry it to obtain a filled boride Vanadium carbon fiber blanket, the synthetic fat slurry is an ethanol solution containing 12% synthetic fat;

[0027] (3) Pass the above-mentioned filled vanadium boride carbon fiber blanket into a mixed gas of trichloromethylsilane gas, hydrogen gas and argon gas at a temperature of 1000 °C, and the mola...

Example Embodiment

[0030] Example 3

[0031] (1) Set the density to 0.1g / cm 3 The graphitized carbon fiber blanket is fed with 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 in a synthetic grease slurry with a particle size of less than 0.3 μm and a content of 20% vanadium boride, place it in an ultrasonic cleaner and fill it with vanadium boride for 30 minutes, take it out and dry it to obtain a filled boride Vanadium carbon fiber blanket, synthetic fat slurry is an ethanol solution containing 20% ​​synthetic fat;

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

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Abstract

A preparing method for a synthetic fat dispersed vanadium boride silicon carbide-carbon fiber friction material is characterized in that a graphite carbon fiber blanket with the density of 0.1-1.8g/cm<3> is carburized, is then processed by synthetic fat dispersed vanadium boride filling, is then processed in a buried siliconizing manner and is then nitrided in a nitrogen atmosphere to obtain the synthetic fat dispersed vanadium boride silicon carbide-carbon fiber friction material. The friction material is prepared through the graphite carbon fiber blanket processed in the steps of carburizing, vanadium boride filling, silicon carbide depositing, buried siliconizing and nitriding, and the prepared friction material is high in strength, roughness and friction performance and can be suitable for all kinds of 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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IPC IPC(8): C04B38/00C04B35/84C04B35/584C04B35/622C04B35/634C04B35/65C04B35/565C04B35/58
CPCC04B35/573C04B35/58064C04B35/591C04B35/622C04B35/63416C04B35/65C04B35/806C04B38/00C04B2235/422C04B2235/46C04B2235/48C04B2235/5248C04B2235/616C04B2235/658
Inventor 唐竹兴
Owner SHANDONG UNIV OF TECH
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