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A composite fiber high-performance friction material and its preparation method

A composite fiber, friction material technology, applied in the direction of friction linings, chemical instruments and methods, mechanical equipment, etc., can solve the problems of thermal conductivity, small heat capacity, material failure, material spots, etc., to achieve high damage tolerance, light weight , the effect of stabilizing the friction coefficient

Active Publication Date: 2019-02-19
杭州萧山红旗摩擦材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its organic structure, the thermal conductivity and heat capacity of paper-based friction materials are smaller than those of copper-based friction materials.
At the same time, excessive surface pressure will break the fiber binder below the surface of the material, and the material will appear spots or fall off in a large area, resulting in material failure

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Embodiment 1: A composite fiber friction material, including a bottom layer, an intermediate layer and an upper layer, the upper part of the bottom layer is provided with an upper layer, the bottom layer and the upper layer are sintered by high temperature and high pressure of the middle layer, and the bottom layer is steel The core plate layer, the middle layer is a copper fiber layer, and the upper layer is an annular friction layer.

[0043] A preparation method of composite fiber high-performance friction material, according to the following process steps:

[0044] (1) Composition ratio of composite fiber friction material:

[0045] Carbon fiber 100%;

[0046] (2), woven into square fiber cloth:

[0047] Use composite fiber filaments with a diameter of 7 μm, and add a margin of 0.05mm according to the thickness of the friction layer to be woven to calculate the number of composite fiber filaments. Weave a square fiber cloth on a 2.5D multi-dimensional weaving mac...

Embodiment 2

[0071] A preparation method of composite fiber high-performance friction material, according to the following process steps:

[0072] (1) Composition ratio of composite fiber friction material:

[0073] 85% carbon fiber, 15% aramid fiber;

[0074] (2), woven into square fiber cloth:

[0075] Use composite fiber filaments with a diameter of 7 μm, and add a margin of 0.05mm according to the thickness of the friction layer to be woven to calculate the number of composite fiber filaments. Weave a square fiber cloth on a 2.5D multi-dimensional weaving machine, weave one side of the fiber cloth into copper fiber wire as the middle layer, and the diameter of the copper fiber layer is 10 μm;

[0076] (3), impregnated resin:

[0077] Separate the square fiber cloth friction plate with wire mesh, sink the tooling into the dipping device, cover the dipping device and tighten it, turn on the vacuum pump to vacuum, the vacuum is 0.08Pa, and the vacuuming time is 14 minutes, then turn of...

Embodiment 3

[0098] Embodiment 3: A preparation method of composite fiber high-performance friction material, according to the following process steps:

[0099] (1) Composition ratio of composite fiber friction material:

[0100] Carbon fiber 87%, aramid fiber 13%;

[0101] (2), woven into square fiber cloth:

[0102] Use composite fiber filaments with a diameter of 7 μm, and add a margin of 0.05mm according to the thickness of the friction layer to be woven to calculate the number of composite fiber filaments. Weave a square fiber cloth on a 2.5D multi-dimensional weaving machine, weave one side of the fiber cloth into copper fiber wire as the middle layer, and the diameter of the copper fiber layer is 10 μm;

[0103] (3), impregnated resin:

[0104] Separate the square fiber cloth friction plate with wire mesh, sink the tooling into the dipping device, cover the dipping device and tighten it, turn on the vacuum pump to vacuum, the vacuum is 0.08Pa, and the vacuuming time is 14 minutes...

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PUM

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Abstract

The invention relates to a composite fiber high-performance friction material and a preparation method thereof. The composite fiber high-performance friction material comprises a bottom layer and an upper layer which are sintered at the high temperature and the high pressure through a middle layer. The bottom layer is a steel core plate layer. The middle layer is a copper fiber layer. The upper layer is an annular friction layer. Copper fiber filaments are weaved in one surface of fiber cloth, the upper layer and the middle layer are formed through resin dipping, drying, solidification and cutting, and the material is formed by folding with a steel core plate which is formed by heat treatment, skin oxidation, cleaning, airing and electroplating in a sintering mode at the high temperature and the high pressure.The composite fiber high-performance friction material has the lighter mass, the high specific strength, the stable friction coefficient, the ultra-high wear-resistant property and the heat-resistant property.

Description

technical field [0001] The invention relates to a friction material, in particular to a composite fiber high-performance friction material and a preparation method thereof. Background technique [0002] Friction pair is an important component of mechanical transmission and braking, which involves the reliability of vehicle power transmission and control. The friction pair is composed of a friction plate and a dual plate, and the performance of the friction pair mainly depends on the friction and wear performance of the friction plate. During the use of the existing domestic friction plates, there are still problems such as unstable friction performance, high wear rate and low heat resistance, which seriously restrict the excellent maneuverability of the assembly. Therefore, it is very urgent and necessary to develop new friction plates and friction pairs that match with high-load, high-energy, high-speed transmission systems, have long service life and high reliability. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D69/02C09K3/14
CPCC09K3/14F16D69/023F16D2200/0021F16D2200/0026F16D2200/006
Inventor 张秋萍杜建华张银华李辉王浩旭
Owner 杭州萧山红旗摩擦材料有限公司