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

A technology of vanadium carbide, boron carbide and friction material is applied in the field of preparation of friction material, which can solve problems such as hidden safety hazards and reduced friction performance, and achieve the effects of improving wear resistance and high manufacturing cost.

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 a grease slurry with a particle size of less than 0.3 μm and a content of 5% vanadium carbide, place it in an ultrasonic cleaner and fill it with vana...

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 18 hours to obtain a deposited boron carbide carbon fiber blanket;

[0027] (3) Immerse the above-mentioned deposited boron carbide carbon fiber blanket into a grease slurry with a particle size of less than 0.3 μm and a content of 12% vanadium carbide, place it in an ultrasonic cleaner and fill it wi...

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 a grease slurry with a particle size of less than 0.3 μm and a content of 20% vanadium carbide, place it in an ultrasonic cleaner and fill it with...

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Abstract

The invention provides a preparing method for a synthetic fat dispersed vanadium carbide boron carbide-carbon fiber friction material. The preparing method is characterized in that a graphited carbon fiber blanket with the density being 0.1-1.8 g / cm<3> is subjected to boron carbide deposition treatment after being subjected to carburizing treatment, then synthetic fat dispersed vanadium carbide filling treatment is carried out, then burying siliconizing treatment is carried out, and then nitridation treatment is carried out in nitrogen atmosphere, so that the synthetic fat dispersed vanadium carbide boron carbide-carbon fiber friction material is prepared. According to the method, the graphited carbon fiber blanket is adopted for being subjected to carburization, silicon carbide deposition, vanadium carbide filling, burying siliconizing, nitridation and the like to prepare the friction material, and the prepared friction material is high in strength, toughness and friction performance, and capable of adapting to various weather conditions.

Description

Technical field [0001] The present invention involves a method of preparing for friction materials for carbon fiber and ceramic materials, which belongs to the field of composite material preparation technology. Background technique [0002] The friction materials are currently mainly using carbon fiber and carbon (C / C) composite materials. Due to the relatively low wear resistance of C / C composite materials, people are seeking preparation methods for friction materials with higher wear resistance.In addition, C / C composite materials In a humid environment, its friction performance will be reduced, which will bring serious safety hazards to use. Invention content [0003] The purpose of the present invention is to provide a preparation method that can overcome the above -mentioned defects, achieve higher intensity, higher friction performance, and adapt to various climatic conditions.Its technical solution is: [0004] The preparation method of Hezhi decentralized carbonized bor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/00C04B35/80C04B35/563C04B35/56C04B35/591C04B35/65C04B35/632C04B35/622
CPCC04B35/5607C04B35/563C04B35/591C04B35/622C04B35/632C04B35/806C04B38/00C04B2111/00362C04B2235/428C04B2235/46C04B2235/48C04B2235/5248C04B2235/5256C04B2235/616C04B2235/6567C04B2235/658C04B35/584
Inventor 唐竹兴
Owner SHANDONG UNIV OF TECH
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