阅读说明：本技术 一种陶瓷纤维复合刹车片 (Ceramic fiber composite brake pad ) 是由 张泽伟 于 2019-10-17 设计创作，主要内容包括：一种陶瓷纤维复合刹车片,包括摩擦层、散热粘接层,本发明具有耐磨性能良好,摩擦系数稳定,使用寿命长、成本低等特点。散热区域通过对多种成分进行合理的搭配,确保各材料的优点在摩擦材料中得到充分的发挥,其耐温性能好,有良好的热稳定性和较低的热传导力,满足了刹车片的高耐磨、高速化、安全化等技术要求。(The invention relates to a ceramic fiber composite brake pad, which comprises a friction layer and a heat dissipation bonding layer. The heat dissipation area ensures that the advantages of all materials are fully exerted in the friction material by reasonably matching various components, has good temperature resistance, good thermal stability and lower heat conduction force, and meets the technical requirements of high wear resistance, high speed, safety and the like of the brake pad.)

1. The ceramic fiber composite brake pad comprises a friction layer and a heat dissipation bonding layer, wherein the heat dissipation bonding layer is positioned between the friction layer and a steel backing, and is characterized in that the heat dissipation bonding layer is prepared from the following components in parts by weight: 14-15 parts of basalt fiber, 15-17 parts of nano silicon dioxide modified phenolic resin with epoxy groups, 1.5-2 parts of melamine, 3-4 parts of nano aluminum oxide, 10-13 parts of red copper fiber, 7-10 parts of steel fiber, 5-7 parts of polyimide, 4-5 parts of expanded vermiculite, 0.3-0.6 part of sodium dodecyl sulfate, 0.3 part of nano zinc oxide and 3-5 parts of nitrile rubber;

the friction layer is prepared from the following components in parts by weight: 4-8 parts of PROMAXON-D calcium silicate particles, 9-11 parts of ceramic fibers, 10-15 parts of diabase fibers, 5-8 parts of iron yellow, 1-1.5 parts of tin bronze powder, 7-12 parts of carbon fibers, 5-8 parts of polyimide, 9-11 parts of needle-like wollastonite powder, 1-3 parts of zinc sulfide, 2-5 parts of tungsten disulfide, 2-5 parts of polytetrafluoroethylene, 15-17 parts of nano silicon dioxide modified phenolic resin with epoxy groups, 3-5 parts of nitrile rubber and 1-1.5 parts of melamine.

2. The ceramic fiber composite brake pad of claim 1, wherein the heat dissipation bonding layer is prepared from the following components in parts by weight: 15 parts of basalt fiber, 17 parts of nano silicon dioxide modified phenolic resin with epoxy groups, 2 parts of melamine, 4 parts of nano aluminum oxide, 13 parts of red copper fiber, 10 parts of steel fiber, 7 parts of polyimide, 5 parts of expanded vermiculite, 0.3 part of sodium dodecyl sulfate and 5 parts of nitrile rubber;

the friction layer is prepared from the following components in parts by weight: 8 parts of PROMAXON-D calcium silicate particles, 11 parts of ceramic fibers, 10 parts of diabase fibers, 8 parts of iron yellow, 1.5 parts of tin bronze powder, 11 parts of ceramic fibers, 12 parts of carbon fibers, 8 parts of polyimide, 11 parts of needle-like wollastonite powder, 3 parts of zinc sulfide, 5 parts of tungsten disulfide, 5 parts of polytetrafluoroethylene, 17 parts of epoxy group-containing nano silica modified phenolic resin, 5 parts of nitrile rubber and 1.5 parts of melamine.

3. The ceramic fiber composite brake pad according to claim 1 or 2, wherein a drainage ditch is formed in the middle of the friction layer, and the bottom of the drainage ditch is flush with the heat dissipation adhesive layer.

Technical Field

The invention relates to the field of automobile parts, in particular to a ceramic fiber composite brake pad.

Background

In the braking system of the automobile, a brake pad is the most critical safety part, and the quality of all braking effects plays a decisive role. The working principle of the brake mainly comes from friction, and the kinetic energy of the vehicle is converted into the heat energy after friction by using the friction between a brake pad and a brake drum and between a tire and the ground, so that the vehicle is stopped. A good and efficient braking system must provide a stable, sufficient and controllable braking force, and have good hydraulic transmission and heat dissipation capability, so as to ensure that the force applied by the driver from the brake pedal can be sufficiently and effectively transmitted to the master cylinder and the slave cylinders, and to avoid hydraulic failure and brake recession caused by high heat.

Disclosure of Invention

The invention aims to provide a ceramic fiber composite brake pad to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the ceramic fiber composite brake pad comprises a friction layer and a heat dissipation bonding layer, wherein the heat dissipation bonding layer is positioned between the friction layer and a steel backing, and is prepared from the following components in parts by weight: 14-15 parts of basalt fiber, 15-17 parts of nano silicon dioxide modified phenolic resin with epoxy groups, 1.5-2 parts of melamine, 3-4 parts of nano aluminum oxide, 10-13 parts of red copper fiber, 7-10 parts of steel fiber, 5-7 parts of polyimide, 4-5 parts of expanded vermiculite, 0.3-0.6 part of sodium dodecyl sulfate, 0.3 part of nano zinc oxide and 3-5 parts of nitrile rubber;

the friction layer is prepared from the following components in parts by weight: 4-8 parts of PROMAXON-D calcium silicate particles, 9-11 parts of ceramic fibers, 10-15 parts of diabase fibers, 5-8 parts of iron yellow, 1-1.5 parts of tin bronze powder, 7-12 parts of carbon fibers, 5-8 parts of polyimide, 9-11 parts of needle-like wollastonite powder, 1-3 parts of zinc sulfide, 2-5 parts of tungsten disulfide, 2-5 parts of polytetrafluoroethylene, 15-17 parts of nano silicon dioxide modified phenolic resin with epoxy groups, 3-5 parts of nitrile rubber and 1-1.5 parts of melamine.

Preferably, the middle part of the friction layer is provided with a drainage ditch, and the bottom of the drainage ditch is flush with the heat dissipation bonding layer.

PROMAXON-D basalt fiber particles (American Chemical Abstracts Service (CAS) accession number PROMAXON-D: 1344-95-2) are high porosity calcium silicate products, PROMAXON-D is produced by Promat International Inc. Belgium Europe, and the Holland LAPINUS fiber Co., Ltd is the only agent in the global friction material market.

The diabase fiber does not contain asbestos inorganic substances, has good high-temperature stability and extremely low non-fibrous substance content, can reduce noise, and has good adaptability, good softness, good dispersibility, good bonding force with resin and small irritation to skin.

Tungsten disulfide can be used as lubricant, and has better performance than molybdenum disulfide, lower friction coefficient and higher compressive strength. The device is used for high temperature, high pressure, high rotating speed, high load and operation in chemically active medium. The filling material configured with polytetrafluoroethylene, nylon and the like can be used for manufacturing self-lubricating components.

The needle-shaped wollastonite powder has the characteristics of high purity, good crystallization, strong fluidity, low linear expansion coefficient and corrosion resistance.

The tin bronze is bronze taking tin as a main alloy element, and the alloy has high mechanical property, antifriction property and corrosion resistance, is easy to cut and process, has good brazing and welding properties, small shrinkage coefficient and no magnetism; zinc addition improves castability.

The polyimide has excellent mechanical property, the decomposition temperature is between 500 ℃ and 600 ℃, and the accumulated temperature of the material can be quickly diffused, so that the friction material is effectively prevented from entering a heat fading stage.

The polytetrafluoroethylene has good lubricating property, and can form a good friction-lubrication-friction relation with the combination of the carbon fiber and the aramid fiber, so that the friction performance can be improved, and the wear rate of the material can be reduced.

The invention has the characteristics of good wear resistance, stable friction coefficient, long service life, low cost and the like. The heat dissipation area ensures that the advantages of all materials are fully exerted in the friction material by reasonably matching various components, has good temperature resistance, good thermal stability and lower heat conduction force, and meets the technical requirements of high wear resistance, high speed, safety and the like of the brake pad.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a graph of a brake pad fade test of example 3 of the present invention;

FIG. 3 is a graph showing a fading test of the brake pad of comparative example 1 according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.