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A kind of multilayer composite structure ceramic brake pad material and preparation method thereof

A multi-layer composite, brake pad technology, used in chemical instruments and methods, friction linings, mechanical equipment, etc., can solve problems such as high wear, large pollution, thermal recession, etc., to improve noise reduction and vibration reduction performance, excellent The effect of lubricating performance, wear resistance and moderate friction coefficient

Active Publication Date: 2019-05-24
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the present invention provides a multilayer composite structure ceramic brake pad material and a preparation method thereof. The ceramic brake pad has good physical and mechanical properties, friction performance and thermal stability while meeting environmental protection requirements. To solve the problems of heat decay, high abrasion and pollution of existing products

Method used

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  • A kind of multilayer composite structure ceramic brake pad material and preparation method thereof
  • A kind of multilayer composite structure ceramic brake pad material and preparation method thereof
  • A kind of multilayer composite structure ceramic brake pad material and preparation method thereof

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Embodiment 1

[0033] A multi-layer composite structure ceramic brake pad material, with the ceramic brake pad material as the matrix, adding enhanced performance materials graphene and multi-element composite crystals, the structure is divided into three layers: the top layer, the middle layer and the bottom layer, and the content of the top layer, the middle layer and the bottom layer enhances performance materials Different; the thickness of the top layer structure is 1.5mm, the addition amount of graphene and multi-component composite crystal is 1.5wt.% and 2wt.% of the mass of the matrix; the thickness of the middle layer structure is 2.5mm, and the addition amount of graphene and multi-component composite crystal is the mass of the matrix 1.5wt.% and 3wt.%; the thickness of the underlying structure is 4mm, and the addition of graphene and multi-element composite crystals is 2wt.% and 3.5wt.% of the mass of the matrix. Among them, the raw materials of the matrix include: ceramic fiber (1...

Embodiment 2

[0045] A multi-layer composite structure ceramic brake pad material, with the ceramic brake pad material as the matrix, adding enhanced performance materials graphene and multi-element composite crystals, the structure is divided into three layers: the top layer, the middle layer and the bottom layer, and the content of the top layer, the middle layer and the bottom layer enhances performance materials Different; the thickness of the top layer structure is 2mm, the addition amount of graphene and multi-component composite crystal is 1wt.% and 2.5wt.% of the mass of the matrix ceramic brake pad; the thickness of the middle layer structure is 2.5mm, the addition amount of graphene and multi-component composite crystal 1.5wt.% and 3.5wt.% of the mass of the matrix ceramic brake pad; the thickness of the underlying structure is 3.5mm, and the addition of graphene and multi-element composite crystals is 2.5wt.% and 3.5wt.% of the mass of the matrix ceramic brake pad. Among them, the...

Embodiment 3

[0057]A multi-layer composite structure ceramic brake pad material, with the ceramic brake pad material as the matrix, adding enhanced performance materials graphene and multi-element composite crystals, the structure is divided into three layers: the top layer, the middle layer and the bottom layer; the thickness of the top layer structure is 2mm, graphene and The addition amount of multi-component composite crystals is 1.5wt.% and 2.5wt.% of the mass of the matrix ceramic brake pad; 3.5wt.%; the thickness of the underlying structure is 4mm, and the added amount of graphene and multi-component composite crystal is 2wt.% and 4wt.% of the mass of the matrix ceramic brake pad. Among them, the raw materials of the matrix include: ceramic fiber (20%), aramid fiber (4%), glass fiber (6%), SiC organosilicon modified phenolic resin (19%), barite (12%) by mass percentage. %), NBR powder (7%), graphite (2%), alumina (3%), potassium titanate whiskers (25%), white vermiculite powder (2%)...

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Abstract

The invention relates to a multi-layer composite structure ceramic brake pad material and a manufacturing method of the multi-layer composite structure ceramic brake pad material. Ceramic brake pad material powder, reinforced performance material graphene and multi-component composite crystals serve as raw materials, and calculation and preparation of material powder of various layers, vibration of mixed materials of various layers, multi-layer structure preforming, the hot-press curing technology, the heat treatment technology and the follow-up machining working procedure are conducted in sequence, so that the multi-layer composite structure ceramic brake pad material is manufactured. The high utilization ratio of the brake pad layer thickness is achieved through ceramic multi-layer gradient distribution, and compared with a uniformly-distributed brake pad, a multi-layer composite structure ceramic brake pad has the advantages that the relative consumption of the reinforced performance material can be reduced, and the friction performance can be guaranteed. Meanwhile, a large number of heavy metal raw materials are not used, and the multi-layer composite structure ceramic brake pad material has the advantages of being green and environmentally friendly, stable in friction performance at the high temperature, long in service life and the like.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to a multilayer composite structure ceramic brake pad material and a preparation method thereof, belonging to the field of the automobile industry. Background technique [0002] With the development of science and technology and the rapid development of the automobile industry, automobile manufacturing has begun to develop in the direction of environmental protection, safety, and long life. The semi-metal-based brake pads and low-metal-based brake pads used in automobiles now contain a lot of heavy metal substances. During the braking process, the brake pads will release a large amount of metal powder, which will cause harm to the air environment. When the brake pad is working, it bears external pressure and generates friction, so that the car can achieve the purpose of deceleration, and as the main component of the car brake, the wear resistance and heat resistance of the brake ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D69/02C09K3/14
CPCF16D69/02F16D69/023F16D2200/0047F16D2200/0052F16D2200/006F16D2200/0065F16D2200/0078F16D2200/0086
Inventor 史晓亮卢冠辰刘锡尧黄玉春邓骁斌闫昭陈远史佳睿熊莉
Owner WUHAN UNIV OF TECH
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