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Environment-friendly high-wear-resistance wind power braking friction plate material

A high wear-resistant, friction plate technology, applied in other chemical processes, chemical instruments and methods, etc., can solve the problems of noise pollution, low wear rate, short service life, etc., and achieve the effect of stable friction coefficient and long service life

Inactive Publication Date: 2014-08-06
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Brake pad materials not only need to have high friction coefficient and low wear rate, but also have good thermal conductivity and mechanical properties, etc. Traditional brake pads have low heat resistance temperature, high wear rate, and heavy metals such as lead. The short service life affects the power generation efficiency of the wind turbine
[0003] The main performance defects of current domestic friction materials are: high density, poor flame retardancy, low and unstable instantaneous friction coefficient at high temperature, high wear and tear, short life, and serious noise pollution
At the same time, the heavy metal Pb, which is ubiquitous in friction materials, also pollutes the environment very seriously, which cannot meet the requirements of modern industrial development and environmental protection. At present, the wind power friction plates on the domestic market are all imported, and the price is very high.

Method used

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  • Environment-friendly high-wear-resistance wind power braking friction plate material
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  • Environment-friendly high-wear-resistance wind power braking friction plate material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Take 72 kg of copper powder, 4 kg of iron powder, 7 kg of tin powder, 1 kg of zircon powder, 15 kg of graphite and 1 kg of carbon fiber. Zircon is passed through a 70 mesh sieve, iron powder is passed through a 200 mesh sieve; Sieve; copper powder passed through a 70-mesh sieve; graphite flakes are 260-300 μm in length, 180-200 μm in width, and 180-200 μm in thickness; 1~2μm;

[0040] First, fully mix other materials except graphite and carbon fiber according to the composition ratio, and then add graphite and carbon fiber to fully and evenly mix; cold press the mixed powder at a pressure of 570MPa, and keep it for 1min after forming; carry out in a hydrogen atmosphere Sintering, the temperature is 830°C, and the sintering time is 35min.

Embodiment 2

[0042] Take 74 kg of copper powder, 7 kg of iron powder, 6 kg of tin powder, 3 kg of zircon powder, 10 kg of graphite and 3 kg of carbon fiber. Zircon is passed through a 70 mesh sieve, iron powder is passed through a 200 mesh sieve; Sieve; copper powder passed through a 70-mesh sieve; graphite flakes are 260-300 μm in length, 180-200 μm in width, and 180-200 μm in thickness; 1~2μm;

[0043] First, fully mix other materials except graphite and carbon fiber according to the composition ratio, and then add graphite and carbon fiber to fully and evenly mix; cold press the mixed powder at a pressure of 570MPa, and keep it for 1min after forming; carry out in a hydrogen atmosphere Sintering, the temperature is 830°C, and the sintering time is 35min.

Embodiment 3

[0045] Take 71 kg of copper powder, 5 kg of iron powder, 7 kg of tin powder, 2 kg of zircon powder, 13 kg of graphite and 2 kg of carbon fiber. Zircon is passed through a 70 mesh sieve, iron powder is passed through a 200 mesh sieve; Sieve; copper powder passed through a 70-mesh sieve; graphite flakes are 260-300 μm in length, 180-200 μm in width, and 180-200 μm in thickness; 1~2μm;

[0046] First, fully mix other materials except graphite and carbon fiber according to the composition ratio, and then add graphite and carbon fiber to fully and evenly mix; cold press the mixed powder at a pressure of 570MPa, and keep it for 1min after forming; carry out in a hydrogen atmosphere Sintering, the temperature is 830°C, and the sintering time is 35min.

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Abstract

An environment-friendly and highly wear-resistant wind-electric brake friction plate material belongs to the technical field of industrial material manufacturing. It uses copper, iron, tin, zircon, graphite and carbon fiber as raw materials, and is made by mixing, cold pressing and sintering. The material of the invention meets the requirements of environmental protection, has stable friction coefficient, long product service life, can well control the density, porosity, thermal conductivity, etc. of the friction material, and is beneficial to reduce the damage of the brake disc and reduce the degree of brake noise.

Description

technical field [0001] The invention belongs to the technical field of industrial material manufacture, and relates to a friction plate material. Background technique [0002] Brake pads are key components in wind power generators, and their performance directly affects the reliability and safety of wind power generation as well as the efficiency of wind power generation, and plays an important role in wind power generators. Brake pad materials not only need to have high friction coefficient and low wear rate, but also have good thermal conductivity and mechanical properties, etc. Traditional brake pads have low heat resistance temperature, high wear rate, and heavy metals such as lead. The short service life affects the power generation efficiency of the wind turbine. [0003] The main performance defects of current domestic friction materials are: high density, poor flame retardancy, low and unstable instantaneous friction coefficient at high temperature, high wear and te...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/14
Inventor 陈华贾素秋魏静丹孙诗涵韩丹苑达
Owner CHANGCHUN UNIV OF TECH
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