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Preparation method of ultrasonic dispersion tungsten carbide and boron carbide-carbon fiber friction material

A technology of tungsten carbide, boron carbide, and friction materials, which is applied in ceramic products, applications, household appliances, etc., can solve problems such as reduced friction performance and potential safety hazards, and achieve high friction performance, improved wear resistance, and high manufacturing costs.

Inactive Publication Date: 2016-04-13
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) Pass the above-mentioned carburized carbon fiber blanket into a mixed gas of boron trichloride, methane, hydrogen and argon at a temperature of 900 °C, and the molar ratio of boron trichloride: methane: hydrogen: argon is 1:1: 3:4, the flow rate is controlled at 50ml / min, and the deposited boron carbide is treated for 24 hours to obtain a deposited boron carbide carbon fiber blanket;

[0021] (3) Immerse the above-mentioned deposited boron carbide carbon fiber blanket into tungsten carbide 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 carb...

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) Pass the above-mentioned carburized carbon fiber blanket into a mixed gas of boron trichloride, methane, hydrogen and argon at a temperature of 1000 °C, and the molar ratio of boron trichloride: methane: hydrogen: argon is 1:1.5: 4.5:5, the flow rate is controlled at 350ml / min, and the deposited boron carbide is treated for 17 hours to obtain a deposited boron carbide carbon fiber blanket;

[0027] (3) Immerse the above-mentioned deposited boron carbide carbon fiber blanket into tungsten carbide 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 tungst...

Embodiment 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) Pass the above-mentioned carburized carbon fiber blanket into a mixed gas of boron trichloride, methane, hydrogen and argon at a temperature of 1100 °C, and the molar ratio of boron trichloride: methane: hydrogen: argon is 1:2: 6:6, the flow rate is controlled at 600ml / min, and the deposited boron carbide is treated for 10 hours to obtain a deposited boron carbide carbon fiber blanket;

[0033] (3) Immerse the above-mentioned deposited boron carbide carbon fiber blanket into tungsten carbide 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...

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Abstract

The invention discloses a preparation method of ultrasonic dispersion tungsten carbide and boron carbide-carbon fiber friction material. The preparation method is characterized in that a graphitized carbon fiber blanket with the density being 0.1-1.8g / cm<3> is subjected to carburizing treatment and then is subjected to a boron carbide depositing treatment, ultrasonic dispersion tungsten carbide filling treatment is performed, embedding siliconizing treatment is performed, nitriding treatment is performed in nitrogen atmosphere, and the ultrasonic dispersion tungsten carbide and boron carbide-carbon fiber friction material is prepared. The friction material is prepared from the graphitized carbon fiber blanket through carburizing, silicon carbide depositing, tungsten carbide filling, embedding siliconizing, nitriding and other steps, and the prepared friction material is high in strength, toughness and friction performance and capable of adapting to various climate 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): C04B38/00C04B35/80C04B35/563C04B35/56C04B35/573C04B35/591C04B35/65C04B35/634C04B35/622
CPCC04B35/5626C04B35/563C04B35/573C04B35/591C04B35/622C04B35/63444C04B35/806C04B38/00C04B2111/00362C04B2111/40C04B2235/46C04B2235/48C04B2235/5248C04B2235/5256C04B2235/616C04B2235/6567C04B2235/658
Inventor 唐竹兴
Owner SHANDONG UNIV OF TECH
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