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Friction material of high-strength brake block

A technology for friction materials and brake pads, which is applied in the field of friction materials for high-strength brake pads. It can solve the problems of contact parts wear, low hardness, and strong thermal decay, so as to enhance heat resistance and adhesion, and increase friction. coefficient, the effect of enhancing wear resistance

Active Publication Date: 2014-02-19
贵州新安航空机械有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Now there are many friction materials used for brake pads, the most commonly used are metal mixed materials and ceramic materials. Metal mixed materials such as the invention patent "yaw brake pad" with the patent application number of 200810068968.2 disclose a kind of iron powder, copper powder, The brake pad friction layer composed of graphite, quartz sand, silicon carbide, etc. is characterized by high metal content, good wear resistance and hardness, but the disadvantage is that the friction coefficient is not high, and because the hardness is too hard, it will cause damage to the contact parts. A small amount of wear, long-term use damages parts; ceramic materials such as the patent application No. 201310115341.9 "a wear-resistant material for brake pads" discloses a fly ash, modified phenolic resin, resin, zircon, calcined The wear-resistant material composed of coke, barium sulfate, artificial graphite and coupling agent is characterized by high carbon content, high porosity, stable friction coefficient, and low thermal conductivity. The disadvantages are: low hardness, thermal decay at high temperature powerful

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0015] A friction material for high-strength brake pads, containing iron powder 45, flake graphite 15, potassium feldspar 10, steel wool fiber 10, organosilicon modified phenolic resin 9, potassium octatitanate 7, antimony sulfide 3.5 and vanadium trioxide 0.5. Among them, the carbon content of flake graphite is 80-90%, which plays a role in protecting the contact parts in the friction material, reducing the wear of the contact parts; the density of potassium feldspar is 2.54-2.57g / cm3, and the specific gravity is 2.56-2.59g / cm3, hardness 6, adding it to friction materials can enhance its strength; steel wool fibers are suitable for reinforcing agents for friction materials, engineering plastics, ceramics, refractory materials, etc., and are also suitable for sound absorption and noise reduction. In friction materials, it is beneficial to improve the adhesion and heat resistance of friction materials; silicone modified phenolic resin has good mechanical properties, heat resis...

Embodiment 2

[0018] A high-strength brake pad friction material, containing iron powder 48, flake graphite 10, potassium feldspar 9, steel wool fiber 12, organic silicon modified phenolic resin 11, potassium octatitanate 5, antimony sulfide 4 and vanadium trioxide 1. Among them, the carbon content of flake graphite is 80-90%, which plays a role in protecting the contact parts in the friction material, reducing the wear of the contact parts; the density of potassium feldspar is 2.54-2.57g / cm3, and the specific gravity is 2.56-2.59g / cm3, hardness 6, adding it to friction materials can enhance its strength; steel wool fibers are suitable for reinforcing agents for friction materials, engineering plastics, ceramics, refractory materials, etc., and are also suitable for sound absorption and noise reduction. In friction materials, it is beneficial to improve the adhesion and heat resistance of friction materials; silicone modified phenolic resin has good mechanical properties, heat resistance, ...

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Abstract

The invention discloses a friction material of a high-strength brake block. In order to exert the properties of the friction material such as high strength, wear resistance, heat resistance and contact component protection, crystalline flake graphite, potassium feldspar, steel wool fiber, organic silicon modified phenolic resin, oct-potassium titanate, antimony sulfide and vanadous oxide are added into the friction material. All the materials are uniformly distributed in the friction material, thus perfectly combining the properties of high strength, wear resistance, heat resistance and the like.

Description

technical field [0001] The invention relates to the technical field of a brake system, in particular to a friction material for a high-strength brake pad. Background technique [0002] Friction material is a component material that performs braking and transmission functions in power machinery by relying on friction. All kinds of vehicles moving by any mechanical equipment must have brakes or transmissions, especially large machinery such as aircraft. The friction material is a key part of this brake or transmission. Its main function is to consume through friction Power can make mechanical equipment or various motor vehicles work safely and reliably. [0003] Now there are many friction materials used for brake pads, the most commonly used are metal mixed materials and ceramic materials. Metal mixed materials such as the invention patent "yaw brake pad" with the patent application number of 200810068968.2 disclose a kind of iron powder, copper powder, The brake pad fricti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/14F16D69/02C08L61/14C08K7/04C08K3/04C08K3/30C08K3/24C08K3/08C08K3/34C08K13/04
Inventor 范艳芳
Owner 贵州新安航空机械有限责任公司
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