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Dual-layer micro-dust low-noise ceramic brake material and preparation method thereof

A technology of brake pads and ceramics, which is applied to the analysis of materials, brake discs, mechanical equipment, etc., can solve the problems of high noise and dust, and achieve the effects of good wear resistance, increased contact area and less dust

Active Publication Date: 2019-01-18
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a double-layer micro-dust and low-noise ceramic brake pad material and its preparation method. The ceramic brake pad material has good tribological properties while meeting environmental protection requirements, and is especially used to solve the problem of Existing products have many problems such as dust and high noise

Method used

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  • Dual-layer micro-dust low-noise ceramic brake material and preparation method thereof
  • Dual-layer micro-dust low-noise ceramic brake material and preparation method thereof
  • Dual-layer micro-dust low-noise ceramic brake material and preparation method thereof

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Embodiment 1

[0038] A double-layer fine-dust low-noise ceramic brake pad material, with ceramic fibers, aramid fibers, and carbon fibers as reinforcing fibers, cashew nut oil modified phenolic resin and nitrile rubber powder as binders, and MoS 2 powder and micron SiO 2 Hollow spherical powder is used as a friction coefficient regulator, Mo-B-Si-O composite crystal is used as a friction noise reducer, supplemented by fillers such as vermiculite, mica, barite and alumina, and a double-layer friction structure is adopted. Wherein, the matrix layer and the running-in layer in the double-layer friction structure are composed of the following components by weight percentage:

[0039] Substrate layer: ceramic fiber 15%, aramid fiber 18%, carbon fiber 8%, cashew oil modified phenolic resin 12%, nitrile rubber powder 4%, MoS 2 Powder 8%, Micron SiO 2 Hollow sphere powder 5%, Mo-B-Si-O composite crystal 8%, vermiculite 5%, mica 4%, barite 10%, alumina 3%;

[0040] Running-in layer: ceramic fiber...

Embodiment 2

[0051] A double-layer fine-dust low-noise ceramic brake pad material, with ceramic fibers, aramid fibers, and carbon fibers as reinforcing fibers, cashew nut oil modified phenolic resin and nitrile rubber powder as binders, and MoS 2 powder and micron SiO 2 Hollow spherical powder is used as a friction coefficient regulator, Mo-B-Si-O composite crystal is used as a friction noise reducer, supplemented by fillers such as vermiculite, mica, barite and alumina, and a double-layer friction structure is adopted. Wherein, the matrix layer and the running-in layer in the double-layer friction structure are composed of the following components by weight percentage:

[0052] Substrate layer: ceramic fiber 17%, aramid fiber 14%, carbon fiber 10%, cashew oil modified phenolic resin 12%, nitrile rubber powder 4%, MoS 2 Powder 5%, Micron SiO 2 Hollow sphere powder 7%, Mo-B-Si-O composite crystal 9%, vermiculite 5%, mica 4%, barite 10%, alumina 3%;

[0053] Running-in layer: ceramic fibe...

Embodiment 3

[0064] A double-layer fine-dust low-noise ceramic brake pad material, with ceramic fibers, aramid fibers, and carbon fibers as reinforcing fibers, cashew nut oil modified phenolic resin and nitrile rubber powder as binders, and MoS 2 powder and micron SiO 2 Hollow spherical powder is used as a friction coefficient regulator, Mo-B-Si-O composite crystal is used as a friction noise reducer, supplemented by fillers such as vermiculite, mica, barite and alumina, and a double-layer friction structure is adopted. Wherein, the matrix layer and the running-in layer in the double-layer friction structure are composed of the following components by weight percentage:

[0065] Substrate layer: ceramic fiber 16%, aramid fiber 13%, carbon fiber 10%, cashew oil modified phenolic resin 13%, nitrile rubber powder 4%, MoS 2 Powder 6%, Micron SiO 2 Hollow sphere powder 6%, Mo-B-Si-O composite crystal 8%, vermiculite 5%, mica 4%, barite 12%, alumina 3%;

[0066] Running-in layer: ceramic fibe...

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Abstract

The invention discloses a dual-layer micro-dust low-noise ceramic brake material and a preparation method thereof. With a ceramic fiber, an aramid fiber and a carbon fiber as reinforcement fibers, with cashew nut oil modified phenolic resin and butadiene-acrylonitrile rubber powder as a bonding agent, with MoS2 powder and micron-order SiO2 hollow sphere powder as a friction coefficient conditioning agent, with Mo-B-Si-O composite crystals as a friction noise reduction agent, with the help of filler vermiculite, mica, barite and aluminium oxide, by adopting a dual-layer friction structure, through working processes of vibration mixing, pre-forming of the dual-layer structure, hot press formation, heat treatment and grinding in sequence, the dual-layer micro-dust low-noise ceramic brake material is prepared. The ceramic brake material has good tribological performance when the environment-friendly demand is met and is particularly used for solving the problems of much dust, high noise and the like of existing products.

Description

technical field [0001] The invention relates to a double-layer micro-dust low-noise ceramic brake pad material and a preparation method thereof, belonging to the field of the automobile industry. Background technique [0002] With the rapid development of modern social economy, automobiles, a convenient means of transportation, have gradually entered thousands of households, and my country's automobile industry has entered the forefront of the world after rapid development in recent years. In the face of higher requirements for environmental protection and comfort of automobiles worldwide, the development of friction materials for brake pads has become more and more stringent for environmental protection. Brake pads are an important part of the automobile braking system, and their comprehensive performance directly affects the stability and reliability of the braking system and the comfort of people when riding. [0003] At present, the brake pads used for automobile brakin...

Claims

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Application Information

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IPC IPC(8): F16D65/12F16D69/02G01N19/02G01M17/007G01H17/00
CPCF16D65/125F16D69/02F16D69/023F16D69/025F16D69/028F16D2069/005F16D2200/0039F16D2200/0078F16D2200/0086G01H17/00G01M17/007G01N19/02
Inventor 史晓亮陈远熊莉邓帆史佳睿卢冠辰邓骁斌刘锡尧周宏胭杨镇瑜
Owner WUHAN UNIV OF TECH
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