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A kind of non-asbestos friction material and its preparation method and application

A friction material and asbestos-free technology, which is applied in the field of materials science, can solve the problems that composite mineral fibers cannot be used as friction materials, and achieve good promotion and application prospects.

Active Publication Date: 2020-05-12
枣阳兴亚摩擦材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides an asbestos-free friction material and its preparation method and application, the main purpose is to solve the problem that composite mineral fibers cannot be used in friction materials

Method used

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  • A kind of non-asbestos friction material and its preparation method and application
  • A kind of non-asbestos friction material and its preparation method and application
  • A kind of non-asbestos friction material and its preparation method and application

Examples

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Embodiment 1

[0020] A non-asbestos friction material comprising the following raw materials: 16.8g of phenolic resin, 5g of nitrile rubber powder, 20g of composite mineral fiber, 9g of glass fiber, 8g of natural graphite, 5g of artificial graphite, 5g of petroleum coke powder, and 5g of cashew oil friction powder , magnesium oxide 5g, dolomite powder 15g, friction material (Li 2 O, chromite, etc.) 5g, release agent 0.4g, coloring agent 0.8g, vermiculite 1.

Embodiment 2

[0022] A non-asbestos friction material comprising the following raw materials: phenolic resin 16g, nitrile rubber powder 4g, composite mineral fiber 27.5g, glass fiber 7g, natural graphite 7g, artificial graphite 4g, petroleum coke powder 3g, cashew oil friction powder 3g , magnesia 4g, dolomite powder 13g, friction-increasing material 4g, release agent 0.5g, colorant 1.0g, vermiculite 4g.

Embodiment 3

[0024] A non-asbestos friction material, comprising the following raw materials: phenolic resin 20g, nitrile rubber powder 1g, composite mineral fiber 29g, glass fiber 5g, natural graphite 5g, artificial graphite 5g, petroleum coke carbon powder 5g, cashew oil friction powder 5g, Magnesium oxide 5g, dolomite powder 11.2g, friction material (Li 2 O, chromite, etc.) 2g, release agent 0.6g, coloring agent 1.2g, vermiculite 5g.

[0025] The composite mineral fiber selected in the present invention is a new type of friction material reinforcement fiber composed of various mineral fibers supplemented by a small amount of organic fiber, and can also be used for other non-asbestos products, such as non-asbestos rubber sheets and building materials.

[0026] The composite mineral fiber selected by the present invention has characteristics: loss on ignition (1 hour at 800° C.) is not more than 10 percent; bulk density is 0.13-0.15 g / cm3, and water content is less than 1.5 percent.

[0...

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Abstract

The invention discloses an asbestos-free friction material, a preparation method thereof and application, and relates to the technical field of materials. The friction material comprises the followingraw materials, by mass percentage, of 15%-20% of phenolic resin, 1%-5% of nitrile butadiene rubber power, 20%-30% of composite mineral fiber, 5%-8% of glass fiber, 5%-8% of natural graphite, 3%-5% ofartificial graphite, 3%-5% of petroleum coke powder, 2%-5% of cashew nut oil friction powder, 3%-5% of magnesium oxide, 10%-15% of dolomite powder, 2%-5% of a friction material, 0.4%-0.6% of a demolding agent, 0.8%-1.2% of a coloring agent and 1%-5% of vermiculite. According to the asbestos-free friction material, by adjusting the formula, the composite mineral fiber is successfully utilized to prepare the friction material, the performance of the composite mineral fiber can meet the using requirement, the effect of replacing asbestos with the composite mineral fiber is achieved, and the defects of the composite mineral fiber are overcome.

Description

technical field [0001] The invention relates to the technical field of materials science, in particular to an asbestos-free friction material and its preparation method and application. Background technique [0002] Friction material is a component material used in power machinery that relies on friction to perform braking and transmission functions. Any mechanical equipment and various moving vehicles must have braking or transmission devices. Friction material is a critical component on this braking or transmission. Its main function is to absorb or transmit power through friction. For example, the clutch plate transmits power, and the brake plate absorbs kinetic energy. They enable mechanical equipment and various motor vehicles to work safely and reliably. Therefore, the friction material is a widely used and even critical material. [0003] The friction material is a polymer ternary composite material, which is a physical and chemical complex. It is composed of pol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D69/02C09K3/14
CPCC09K3/149F16D69/02F16D69/026F16D2200/0065F16D2200/0086
Inventor 赵金宝
Owner 枣阳兴亚摩擦材料有限公司