Friction material and friction goods

A technology of friction materials and products, applied in friction linings, other chemical processes, chemical instruments and methods, etc., can solve the problems of braking noise, low heat resistance, large specific gravity, etc., to ensure high temperature performance and high heating efficiency. , the effect of good structural strength

Active Publication Date: 2017-05-10
HUBEI FEILONG FRICTION & SEALING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Composite friction materials have appropriate hardness, low specific gravity, and simple process, and are widely used in various commercial, passenger cars, and ordinary trains. Metal composite materials can work near 350°C for a short time, but because of their high iron content, they will rust during use
Due to its high temperature resistance, powder metallurgy friction materials are used in fields that require high operating temperatures, such as mining machinery and high-speed rail. The disadvantages are high hardness, large specific weight, and easy to generate braking noise. The production process requires atmosphere sintering, which is difficult.

Method used

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  • Friction material and friction goods
  • Friction material and friction goods
  • Friction material and friction goods

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] This embodiment provides a friction material, which includes 26 parts by weight of metal fibers, 4 parts by weight of phenolic resin, 2 parts by weight of nitrile rubber, 50 parts by weight of barium sulfate, 4 parts by weight of aluminum oxide, 4 parts by weight of chromite, graphite 5 parts by weight, 3 parts by weight of petroleum coke particles and 2 parts by weight of mica.

[0029] Such as figure 1 As shown, the metal fiber includes a plurality of composite nickel-tin metal fiber filaments 2 , and the plurality of composite nickel-tin metal fiber filaments 2 are distributed in the matrix 1 of the friction material in a disordered state. Such as figure 2 As shown, the nickel fiber 3 is the main body in each composite nickel-tin metal fiber wire, and the tin fiber is divided into multiple sections and wound on the nickel fiber 3 from bottom to top, and the head and end of each section of tin fiber 4 protrude from both sides of the main trunk. . In this embodimen...

Embodiment 2

[0040] This embodiment provides a friction material, which is roughly the same as that of Embodiment 1, except that it includes 30 parts by weight of metal fibers, 3 parts by weight of phenolic resin, 2 parts by weight of nitrile rubber, 47 parts by weight of barium sulfate, 4 parts by weight of aluminum oxide parts by weight, 4 parts by weight of chromite, 5 parts by weight of graphite, 3 parts by weight of petroleum coke particles and 2 parts by weight of mica. In this embodiment, the diameter of the nickel fiber 3 is 100 μm, and the length of the nickel fiber 3 is 1.5 cm. The diameter of each tin fiber 4 is 25 μm, and the length of each tin fiber 4 is 1.5 cm.

[0041] This embodiment also provides a friction product, which is prepared by the following method:

[0042] 1) if image 3 As shown, a thermosetting mold is provided, the mold includes a mold frame 5, an upper electrode pressing plate 6 and a lower electrode pressing plate 7, the mold frame 5 is an insulating cera...

Embodiment 3

[0050] This embodiment provides a friction material, which is roughly the same as that of Embodiment 1, except that it includes 25 parts by weight of metal fibers, 3 parts by weight of phenolic resin, 2 parts by weight of nitrile rubber, 52 parts by weight of barium sulfate, 4 parts by weight of aluminum oxide parts by weight, 4 parts by weight of chromite, 5 parts by weight of graphite, 3 parts by weight of petroleum coke particles and 2 parts by weight of mica. The diameter of the nickel fiber 3 is 100 μm, and the length of the nickel fiber 3 is 1.5 cm. The diameter of each tin fiber 4 is 25 μm, and the length of each tin fiber 4 is 1.5 cm.

[0051]This embodiment also provides a friction product, which is prepared by the following method:

[0052] 1) image 3 As shown, a thermosetting mold is provided, the mold includes a mold frame 5, an upper electrode pressing plate 6 and a lower electrode pressing plate 7, the mold frame 5 is an insulating ceramic material, and the up...

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Abstract

The invention provides a friction material and friction goods. The friction material comprises, by weight, 25-35 parts of metal fibers, 2-4 parts of phenolic resin, 1-2 parts of nitrile rubber, 37-64 parts of barium sulfate, 1-4 parts of aluminum oxide, 1-4 parts of chromite, 2-5 parts of graphite, 2-5 parts of petroleum coke particles and 2-6 parts of mica. Each metal fiber comprises a plurality of composite nickel-tin metal fiber threads in disordered arrangement. A nickel fiber serves as a main body of each composite nickel-tin metal fiber thread. Tin fibers are divided into multiple segments which are wound around the nickel fibers from bottom to top. The head end and the tail end of each segment of tin fiber are protruded out of two sides of the corresponding main body respectively. The friction goods are obtained through pressurized heating of the friction material in a specific mold. The friction goods have high heat resistance performance while hardness can be guaranteed, the manufacture process is simple and convenient, and the friction goods do not contain iron and do not rust.

Description

technical field [0001] The invention relates to the technical field of friction materials, in particular to a friction material and a friction product. Background technique [0002] At present, friction materials are generally divided into powder metallurgy friction materials and composite friction materials. Composite friction materials have appropriate hardness, low specific gravity, and simple process, and are widely used in various commercial, passenger cars, and ordinary trains. Metal composite materials can work near 350°C for a short time, but because of their high iron content, they will rust during use. Due to its high temperature resistance, powder metallurgy friction materials are used in fields that require high operating temperatures, such as mining machinery and high-speed rail. The disadvantages are high hardness, high specific gravity, and easy to generate braking noise. The production process requires atmosphere sintering, which is difficult. . Contents ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/14F16D69/02
CPCC09K3/149F16D69/028
Inventor 吴耀庆
Owner HUBEI FEILONG FRICTION & SEALING MATERIALS
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