Ceramic base/NAO composite friction material and preparation method thereof

A composite friction material and friction material technology, applied in the direction of friction linings, chemical instruments and methods, mechanical equipment, etc., can solve the problem of lack of material core design technology, advanced technology, product performance and quality that cannot meet the host, safety and stability adhesion issues such as large differences in sex, rust, and life

Active Publication Date: 2010-08-04
HUBEI CHIBI SALFER FRICTION MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the OEM market, only low-end models can enter the OE market. Some companies are also developing high-performance friction materials for OE. However, due to the lack of core material design technology and integrated advanced technology, product performance and quality cannot meet The main gap in the requirements of the main engine is that it is very different from the products of advanced countries and foreign companies in terms of high-speed decay, high-temperature decay, safety and stability, noise and vibration, adhesion, rust and life, especially in product quality stability and consistency. greater sex difference
It makes it difficult for domestic self-owned brands of mid-to-high-end brakes to improve their product performance and quality, and lacks competitiveness in the global procurement trend of the auto parts industry supply chain

Method used

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  • Ceramic base/NAO composite friction material and preparation method thereof
  • Ceramic base/NAO composite friction material and preparation method thereof
  • Ceramic base/NAO composite friction material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 2

[0064] Raw Material Raw Material Example 1 Example 2 Example 3

[0065] 1 Phenolic Resin 4 6 8

[0066] 2 Kevlar aramid fiber 3 2.5 0.5

[0067] 3 Ceramic Fiber Ceramic fiber 4 7 10

[0068] 4 Potassium Titanate Potassium titanate fiber 12 8 5

[0069] 5 Zirconia Zirconia 15.8 11 5

[0070] 6 Copper Copper or copper fiber 15.2 8 16

[0071] 7 Sodium carbonate light 0.8 0.8 0.8

[0072] 8 Barium Sulfate 21 28 16

[0073] 9 Reinforcing fibers 5 0 9

[0074] 10 Wear resistant material 11 12 16.2

[0075] 11 Functional filler 9.5 14.2 10.5

[0076] 12 Toughening filler 3.5 5 2.6

[0077] 13 Balance margin 0.2 0.5 0.4

[0078] ∑ 100 100 100

[0079] According to the national standard GB5763-98 test results:

example 1

[0081]

[0082]

[0083] Example 2:

[0084]

example 3

[0086]

[0087] It can be seen from the above table that the wear of the material does not increase much at the high temperature stage of 300-350°C, but the wear of the friction material usually increases sharply at the high temperature stage of 300-350°C.

[0088] Example KRAUSS test report of Example 2: see the attached manual for details figure 1

[0089] From attached figure 1 It can be seen that the friction coefficient of the material rises above 400°C, and the outstanding heat resistance and stability performance is consistent, the fluctuation is extremely small, and the recovery performance is excellent; while the friction coefficient of friction materials generally decreases at 350°C.

[0090] The feature of the present invention is that the ceramic-based / NAO friction material has a stable dual friction coefficient of the friction pair, excellent heat resistance and stability, good braking inertia, high compression ratio, and extremely low wear (can be used for ...

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Abstract

The invention relates to an oxide ceramic base / NAO composite friction material used in a brake of a medium or high-grade car and a preparation method thereof. In the composite friction material, mixed fibers comprise aramid fibers, potassium titanate fibers and silicon, magnesium and calcium oxide ceramic fibers; aedelforsite or mineral fibers and copper fibers are used as the enhancement and conduction fibers; phenolic resin is used as the organic bonding agent; pure oxide ceramics, such as Al2O3, ZrO2, MgO, CaO and the like, are used as the abrasives; solid lubricant, sulfide, graphite coke and the like are used as the abrasion resistant lubricants; and sodium bicarbonate is used as the blowing agent and pairing antioxidant, and barium sulfate inorganic filler is used as the function and toughening filler. The ceramic base / NAO organic friction material mainly maintains the unique performance of the asbestos friction material, remakably lowers the noise, reduces the abrasion possibility, and is beneficial to prolonging the service life of a brake disc, there by being a novel green (less-dust) low-noise environmentally-friendly friction material.

Description

technical field [0001] The invention relates to a novel low-noise, green and environment-friendly composite friction material, in particular to an oxide ceramic base / NAO composite friction material more suitable for mid-to-high-end car brakes and a preparation method thereof. technical background [0002] At present, there are the following types of friction materials: [0003] 1. Automobile friction material [0004] Automobile friction materials are mainly based on an organic or inorganic material (such as resin, ceramics, metal, etc.), which is compounded by modern technology with reinforcing fibers, whiskers, synthetic particles, friction modifiers, and friction reducers. The composite material of the overall structure, the different chemical properties and physical characteristics of this structure in the form of micro or macro meet the requirements of different friction properties. Automobile brake friction products are important components of the front and rear whee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/14F16D69/02
CPCF16D69/026
Inventor 郭东辉董鑫甘迪光李春龙
Owner HUBEI CHIBI SALFER FRICTION MATERIAL
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