Copper base particle reinforced friction material

A technology of friction materials and particles, applied in the direction of friction linings, mechanical equipment, etc., to achieve the effects of reducing energy consumption, shortening sintering time, and good wear resistance

Inactive Publication Date: 2007-07-11
大连远通制动制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, the friction and wear performance of these materials under the high temperature and high friction speed conditions of high-speed train braking has yet to be verified.

Method used

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  • Copper base particle reinforced friction material

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Embodiment 1

[0020] Copper-based particle reinforced friction material, the weight percentage of each component is as follows: copper powder 54%, tin powder 6%, aluminum powder 3%, iron powder 12%, Al 2 o 3 6%, SiO 2 9%, graphite 10%.

[0021] To manufacture a brake block from the above friction material, firstly weigh the above raw materials in proportion and mix them, add 0.2% kerosene by weight of the mixed powder, and mix until uniform. Put the mixed powder with suitable weight into the mold, press it under the pressure of 500MPa for 5-10 seconds, and take it out to become a cold pressed blank. Put the cold-pressed blank into the hot-pressing mold, start the vacuum system, when the vacuum reaches 70mmHg, apply a pressure of 3MPa to the blank, and at the same time, start the heating current, when the temperature of the blank reaches 800°C, apply a pressure of 50MPa to the blank, and keep it warm for 2 minutes , with the furnace cooling to 100 ℃ out of the furnace, made of brake block...

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Abstract

The invention discloses a reinforced friction material of copper-based particle in the friction material making domain, which comprises the following parts: 30-70% Cu, 4-11% Sn, 1-15% Al, 5-18% Fe, 2-15% Al2O3, 2-15% SiO2, 0-15% ferrochrome and 5-20% graphite.

Description

Technical field: [0001] The invention belongs to the technical field of friction materials, in particular to reinforced friction materials for manufacturing railway vehicle brake pads. Background technique: [0002] Copper-based particle-reinforced friction materials have become the key materials for manufacturing clutches and brakes due to their high strength, wear resistance, good thermal conductivity, high friction coefficient, and stable friction coefficient. They are widely used in automobiles, motorcycles, In transportation tools such as trains and airplanes and machinery such as oil drilling. In the field of train vehicle manufacturing, it is used to manufacture brake shoes and brake pads. This type of material is mainly based on metal and contains uniformly distributed hard particles and lubricating particles. The strength and content of the metal matrix play a leading role in the strength and toughness of the material. Hard particles and lubricating particles are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C45/00F16D69/02
Inventor 宋宝韫高飞符蓉于庆军
Owner 大连远通制动制品有限公司
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