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Environmental protection type asbestos less friction magnetic powder

An asbestos-free and environmentally friendly technology is applied in the field of composite materials for manufacturing brake pads, which can solve the problems of poor durability, emission of toxic substances, loss of braking function, etc., and achieve high braking performance, low cost, and constant braking effect. Effect

Inactive Publication Date: 2006-01-11
吴传良
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the brake materials commonly used in various vehicles and machines are all friction materials based on asbestos, and the brake pads or friction magnets made of asbestos materials have the following disadvantages: (1) after high temperature friction, asbestos materials produce A poisonous substance is distributed in the space, which can cause cancer after human exposure
(3) Brake pads made of asbestos materials basically lose their braking function after being used for 5 to 6 months, and their durability is poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] An environmentally friendly asbestos-free friction magnetic powder, the mass content of each component is: sepiolite 1000, iron oxide powder 50, copper oxide powder 30, barite powder 80, magnesium oxide powder 50, steel wool fiber 40, nitrile -Phenolic modified rubber powder 60, silicon oxide powder 60, wollastonite powder 70, nitrile rubber powder 50, silicon carbide powder 50, graphite powder 60, mica powder 50, zinc oxide powder 50, urotropine 60, clay 80 .

[0009] The present invention can be used to produce brake parts. Taking the production of brake pads as an example, the above-mentioned raw materials are mixed, stirred and crushed to 350 mesh for later use, and molds with specific molding groove shapes are processed according to the requirements of product parts, such as arc-shaped sheet-shaped molding grooves. Mold, when the temperature of the mold is raised to 180°C, start the 60-100T hydraulic press, put the friction magnetic powder weighed according to the ...

Embodiment 2

[0011] Take raw materials with mass ratio as follows: sepiolite 40, iron oxide powder 20, copper oxide powder 2, barite powder 30, magnesium oxide powder 20, steel wool fiber 10, nitrile-phenolic modified rubber powder 25, silicon oxide powder 15. Wollastonite powder 15, NBR powder 10, silicon carbide powder 10, graphite powder 30, mica powder 20, zinc oxide powder 15, urotropine 15, clay 40. Take a total of 100 kg of the above raw materials, mix, stir, pulverize, and pass through a 350-mesh sieve to obtain environmentally friendly asbestos-free friction magnetic powder.

Embodiment 3

[0013] An environmentally friendly asbestos-free friction magnetic powder, the mass content of each component is: sepiolite 70, iron oxide powder 35, copper oxide powder 16, barite powder 55, magnesium oxide powder 35, steel wool fiber 25, nitrile -Phenolic modified rubber powder 42, silicon oxide powder 38, wollastonite powder 42, nitrile rubber powder 30, silicon carbide powder 30, graphite powder 45, mica powder 35, zinc oxide powder 32, urotropine 38, clay 60 . The above raw materials are mixed, stirred and pulverized to become environmentally friendly non-asbestos friction magnetic powder.

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PUM

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Abstract

An environmental protection type non-asbestos magnetic friction powder as braking material with high friction coefficient is proportionally prepared from 16 raw materials including sepiolite, iron oxide powder, copper oxide powder, barite powder, magnesium oxide powder, steel wool, etc.

Description

technical field [0001] The invention relates to a composite brake material with high friction coefficient, in particular to a composite material used for making brake pads. Background technique [0002] At present, the brake materials commonly used in various vehicles and machines are all friction materials based on asbestos, and the brake pads or friction magnets made of asbestos materials have the following disadvantages: (1) after high temperature friction, asbestos materials produce A poisonous substance is distributed in the space, which can cause cancer after human contact. (2) The friction magnetic block made of asbestos material can produce a kind of lubricant when it encounters moisture or water during use, which makes the brakes slack, and produces loud noise and ineffective brakes during braking. (3) After the brake pads made of asbestos materials have been used for 5 to 6 months, they have basically lost their braking function, and their service life is poor. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/14
Inventor 吴传良
Owner 吴传良
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