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Preparation method of fiber reinforced ceramic based friction material

A fiber-reinforced and friction material technology, applied in the direction of friction linings, chemical instruments and methods, mechanical equipment, etc., can solve problems such as the inability to fully disperse fibers, achieve excellent mechanical properties and friction and wear properties, facilitate industrial production, and solve cluster effect

Active Publication Date: 2014-10-29
太仓力达莱特精密工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing fiber-reinforced ceramic-based friction materials cannot achieve sufficient dispersion of fibers in the matrix, and cannot achieve the best performance of fiber-reinforced ceramic-based friction materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The preparation method of the fiber-reinforced ceramic-based friction material of this embodiment includes the following steps:

[0024] (a) batching materials, weighing and mixing binding agent, carbon fiber, adhering fiber and friction performance modifier according to the proportioning, to obtain the mixed materials;

[0025] (b) extruding and granulating, extruding and granulating the mixed material through a screw extruder to obtain pellets;

[0026] (c) Thermocompression forming.

[0027] In step (a), the formulation of this embodiment includes the following components by weight, 12-18 parts of binder (preferably 15 parts in this embodiment), 15-30 parts of carbon fiber (preferably 25 parts in this embodiment) , 10-30 parts of adhering fiber (preferably 25 parts in this embodiment) and 20-40 parts of friction modifier (preferably 35 parts in this embodiment). The formula can make the effect of step (b) extrusion granulation better, and the obtained friction mate...

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Abstract

The invention discloses a preparation method of a fiber reinforced ceramic based friction material. The preparation method comprises the following steps: (a) material preparation: weighing a binding agent, carbon fiber, adhesion fiber and a friction performance regulator in a proportion, and mixing to obtain a mixed material; (b) extrusion granulation: performing extrusion granulation on the obtained mixed material by using a screw extruder to obtain a granular material; (c) hot-press molding. Compared with the prior art, the method disclosed by the invention is used for effectively solving the clustering properties of the carbon fiber and mineral fiber in the fiber reinforced ceramic based friction material, and is also beneficial for solid components to be fully infiltrated by the binding agent so as to ensure that the solid components are fully dispersed. A friction material prepared by using the method has excellent mechanical properties and friction and wear properties.

Description

technical field [0001] The invention relates to a preparation method of a friction material, in particular to a preparation method of a fiber-reinforced ceramic-based friction material. Background technique [0002] The main characteristics of fiber-reinforced ceramic-based friction materials are strong braking force, good thermal stability, low dual wear and high temperature resistance, and its comprehensive performance is much better than ordinary friction materials. The brake pads made of fiber-reinforced ceramic-based friction materials have the following advantages: (1) small thermal decay, no deformation or melting of the brake pads during continuous braking, large braking torque, and short braking distance; (2) service life Longer, the average service life of semi-metallic brake pads is more than 50% longer; (3) The damage to the pair is small; (4) Low noise, no squealing when braking, and good braking performance. [0003] The fiber-reinforced ceramic-based friction...

Claims

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Application Information

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IPC IPC(8): C09K3/14C08J5/14F16D69/02
Inventor 蔡悦坤
Owner 太仓力达莱特精密工业有限公司