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Preparation method of ceramic alloy composite wear-resistant material for brake block

A ceramic alloy and wear-resistant material technology, applied in the field of wear-resistant materials, can solve problems such as wear, brake noise, brake failure, etc., achieve high thermal conductivity, good resistance to high temperature and thermal decay, and avoid oxidation

Active Publication Date: 2017-08-11
洛阳鹏飞耐磨材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the deficiencies of the above-mentioned technical problems and provide a method for preparing a ceramic alloy composite wear-resistant material for brake pads. The advantage of noise reduction solves the problems of brake failure, loud brake noise and serious wear caused by the thermal recession of brake pads

Method used

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Examples

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Effect test

Embodiment 1

[0040] A method for preparing a ceramic alloy composite wear-resistant material for brake pads. Ceramic fine powder, silicon carbide and titanium carbonitride are selected as the ceramic matrix of the friction material as raw materials, which have high hardness, large elastic modulus, and good wear resistance. Excellent performance with high thermal conductivity. At the same time, spraying a layer of tungsten-molybdenum rare-earth alloy coating on the surface of the green body can further increase the wear resistance of the brake pad, provide a wear-resistant barrier for the internal ceramic-based material, and improve the heat conduction of the brake pad. Performance and wear resistance, avoiding the phenomenon that the braking performance of the brake pad is reduced or even fails after the brake pad becomes hot, and the preparation method includes the following steps:

[0041] Step 1. Prepare a sintered alumina ceramic block or take discarded alumina ceramics, break it into s...

Embodiment 2

[0052] A method for preparing a ceramic alloy composite wear-resistant material for brake pads. Ceramic fine powder, silicon carbide and titanium carbonitride are selected as the ceramic matrix of the friction material as raw materials, which have high hardness, large elastic modulus, and good wear resistance. Excellent performance with high thermal conductivity. At the same time, spraying a layer of tungsten-molybdenum rare-earth alloy coating on the surface of the green body can further increase the wear resistance of the brake pad, provide a wear-resistant barrier for the internal ceramic-based material, and improve the heat conduction of the brake pad. Performance and wear resistance, avoiding the phenomenon that the braking performance of the brake pad is reduced or even fails after the brake pad becomes hot, and the preparation method includes the following steps:

[0053] Step 1. Prepare a sintered alumina ceramic block or take discarded alumina ceramics, break it into s...

Embodiment 3

[0064] A method for preparing a ceramic alloy composite wear-resistant material for brake pads. Ceramic fine powder, silicon carbide and titanium carbonitride are selected as the ceramic matrix of the friction material as raw materials, which have high hardness, large elastic modulus, and good wear resistance. Excellent performance with high thermal conductivity. At the same time, spraying a layer of tungsten-molybdenum rare-earth alloy coating on the surface of the green body can further increase the wear resistance of the brake pad, provide a wear-resistant barrier for the internal ceramic-based material, and improve the heat conduction of the brake pad. Performance and wear resistance, avoiding the phenomenon that the braking performance of the brake pad is reduced or even fails after the brake pad becomes hot, and the preparation method includes the following steps:

[0065]Step 1. Prepare a sintered alumina ceramic block or take discarded alumina ceramics, break it into sm...

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Abstract

The invention relates to a preparation method of a ceramic alloy composite wear-resistant material for a brake block. All ceramic fine powder, all silicon carbide fine powder, all titanium carbonitride fine powder, all chromite fine powder and half molybdenum tungsten rare earth alloy powder are evenly mixed, a binder is added to prepare slurry, and spraying mist drying and prilling are carried out; and a special die capable of conducting chamfering is used for hot press molding, a pressing material is obtained, half of remaining molybdenum tungsten rare earth alloy powder is used for spraying all surfaces of the pressing material, sintering is carried out after spraying, repeated spraying is carried out, sintering is carried out multiple times until a molybdenum tungsten rare earth alloy layer is formed on the surface, and the ceramic alloy composite wear-resistant material for the brake block is manufactured. According to the preparation method of the ceramic alloy composite wear-resistant material for the brake block, the brake block manufactured through the method has the beneficial effects of high temperature resistance, corrosion resistance, comfortable braking, environmental protection and noise reduction, and the problems of brake failures, large brake noise, serious abrasion and the like caused by brake block heat fading are solved.

Description

technical field [0001] The invention relates to the field of wear-resistant materials, in particular to a method for preparing a ceramic alloy composite wear-resistant material for brake pads. Background technique [0002] Automobile brake pads refer to the friction material fixed on the brake drum or brake disc that rotates with the wheel. The heat insulation layer and the friction layer are composed. When the friction layer material is worn out, the bottom plate of the car will be in direct contact with the brake disc, which recently makes the braking effect invalid. Therefore, the friction layer plays a decisive role in the brake pad. In the traditional preparation process, the friction layer is divided into asbestos sheet and semi-metal sheet according to the different manufacturing materials. Among them, the asbestos content in asbestos-type brake pads is as high as 40~60%. The needle-like fibers of asbestos are very easy to enter the human lungs, and even cause lung c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C29/02C22C30/00C22C1/05B22F1/00
CPCC22C1/05C22C1/051C22C29/005C22C29/02C22C30/00B22F1/10
Inventor 贾玉川贾鹏飞
Owner 洛阳鹏飞耐磨材料股份有限公司
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