Method for fabricating high performance carbon/carbon friction resistance material

A technology of friction materials and manufacturing methods, applied in chemical instruments and methods, brake parts, friction linings, etc., can solve problems such as unstable friction performance, large amount of high-temperature wear, and low shear performance, and achieve improved compactness Efficiency, excellent friction performance, and excellent shear resistance

Inactive Publication Date: 2005-10-26
XIAN AEROSPACE COMPOSITE MATERIALS INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem solved by the present invention is: in order to overcome the shortcomings of existing friction materials such as short service life, large amount of high temperature wear, unstable friction performance and low shear performance during use, a carbon cloth laminated reinforced multi-component matrix is ​​provided The manufacturing method of the high-performance carbon / carbon composite friction material, the method adopts the optimized design of the carbon cloth reinforcement layer, impregnated with high-resin carbon, filled with high-temperature pyrolytic carbon and high-temperature silicon infiltration, forming excellent mechanical properties and high-temperature friction properties And carbon / carbon friction materials with excellent structural stability, especially outstanding compression and shear resistance, low friction coefficient, simple process, and easy engineering production

Method used

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  • Method for fabricating high performance carbon/carbon friction resistance material
  • Method for fabricating high performance carbon/carbon friction resistance material
  • Method for fabricating high performance carbon/carbon friction resistance material

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Experimental program
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Effect test

Embodiment 1

[0026] (1) Adopt the pre-impregnated carbon cloth with a phenolic resin content of 40%, and lay it in layers after cutting, and the layer thickness is 45mm to make a carbon cloth laminate reinforcement;

[0027] (2) The carbon cloth laminate reinforcement is cured by hot pressing at 160 °C. The curing pressure is determined according to the glue content as the curing pressure of 4MPa, the curing pressure temperature is 160 °C, and the curing time is 3h. Fabric reinforcement, which is machined to form a net size blank;

[0028] (3) Put the resin-based carbon cloth reinforcement at 800℃N 2 Carbonization is carried out under the protection, the heating rate is controlled at 30℃ / h, and the formation density is less than 1.2g / cm 3 char / char skeleton;

[0029] (4) The carbon / carbon framework is dense in the confined soaking CVD furnace, the process temperature is 900 °C, the vacuum degree in the furnace is 80KPa, and the propylene gas (C 3 H 6 ) as a dense precursor for depositi...

Embodiment 2

[0033] (1) adopting the pre-impregnated carbon cloth with phenolic resin content of 50%, cutting and laying the layers, the thickness of the layers is 40mm, and the carbon cloth layered reinforcement is made;

[0034] (2) The carbon cloth laminate reinforcement is cured by hot pressing at 150 °C. The curing pressure is determined according to the glue content as the curing pressure of 3MPa, the curing pressure temperature is 150 °C, and the curing time is 4h. After hot pressing and curing, resin-based carbon is formed. Fabric reinforcement, which is machined to form a net size blank;

[0035] (3) Put the resin-based carbon cloth reinforcement at 700℃N 2 Carbonization is carried out under protection, and the heating rate is controlled at 20 °C / h to form a carbon / carbon framework with a density of less than 1.2g / cm3;

[0036] (4) The carbon / carbon skeleton is dense in the confined soaking CVD furnace, the process temperature is 1000 ° C, the vacuum degree in the furnace is 50 K...

Embodiment 3

[0040] (1) Adopt the pre-impregnated carbon cloth with phenolic resin content of 55%, cut it and lay it in layers, and the thickness of the layered layer is 45mm to make a carbon cloth laminated reinforcement;

[0041] (2) The carbon cloth laminate reinforcement is cured by hot pressing at 150 °C. The curing pressure is determined according to the glue content as the curing pressure of 2MPa, the curing pressure temperature is 150 °C, the curing time is 3.5h, and the resin matrix is ​​formed after hot pressing and curing. Carbon cloth reinforcement, which is machined to form a net size blank;

[0042] (3) Put the resin-based carbon cloth reinforcement at 750℃N 2 Carbonization is carried out under the protection, the heating rate is controlled at 25℃ / h, and the density is less than 1.2g / cm 3 char / char skeleton;

[0043] (4) The carbon / carbon skeleton is dense in the confined soaking CVD furnace, the process temperature is 1100 ° C, the vacuum degree in the furnace is 60 KPa, a...

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Abstract

The present invention relates to a production method of high-performance carbon/carbon frictional resistance material which can be used in brake system of high-speed train, magnetic suspension train and racing automobile, etc. It is characterized by that said invention adopts laminated knitted carbon cloth as reinforced skeleton, and uses rough type pyrolytic carbon and wear-resistant high temperature resistant resin pyrolytic carbon to fill and compact the carbon-reinforced skeleton to form high-density wear-resistant carbon/carbon material, and adopts high-temperature reaction silconing method to add antioxidant SiC base body so as to raise high temperature frictional performance and surface frictional resistance performance of said carbon/carbon material.

Description

Technical field [0001] The invention relates to a method for manufacturing a high-performance carbon / carbon friction material, in particular to a method for manufacturing a high-performance carbon / carbon friction material with carbon cloth laminates reinforced with a multi-component matrix. Background technique [0002] The speed of new high-speed trains, maglev trains and racing cars can reach 200-500km / h. The braking system must use long-life, high-speed anti-friction, high-temperature friction-resistant materials to ensure the safety and reliability of the train's braking. Carbon fiber reinforced High-performance matrix carbon / carbon composite material is the first choice for a new generation of brake materials, which is characterized by high temperature resistance, service life 5-10 times that of metal materials, good high temperature friction resistance, and good mechanical properties. At present, high-speed trains and racing cars are made of metal material brake pads b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/14
Inventor 苏红张晓虎崔红姚冬梅赵景鹏李崇俊
Owner XIAN AEROSPACE COMPOSITE MATERIALS INST
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