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Friction material for clutch driven disc and preparation method of friction material

A technology for friction materials and clutches, applied in the field of friction materials for clutch driven discs and its preparation, can solve problems such as single fiber reinforcement, and achieve the effects of reduced wear rate and high friction coefficient

Inactive Publication Date: 2017-09-29
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a kind of friction material mixed with multiple fibers and whiskers to reduce the wear rate of high temperature friction material and stabilize The coefficient of friction under high temperature conditions significantly improves its resistance to thermal recession

Method used

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  • Friction material for clutch driven disc and preparation method of friction material
  • Friction material for clutch driven disc and preparation method of friction material
  • Friction material for clutch driven disc and preparation method of friction material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The friction material for the clutch driven disc is made of the following raw materials: cashew nut shell oil modified phenolic resin 14%, nitrile rubber powder 7%, basalt fiber 12%, steel fiber 7.4%, potassium titanate whisker 4.6%, barium sulfate 21% of powder, 12% of graphite, 6% of vermiculite, 5% of aluminum powder, 7% of barite, and 4% of brown corundum, all are mass percentages, and the total mass percentage of each component is 100%.

[0030] The preparation method of the friction material for the above-mentioned clutch driven disc, its steps are as follows:

[0031] (1) Batching: weigh each component in the formula by mass percentage;

[0032] (2) Mixing: First add basalt fiber, steel fiber and friction filler into the mixer and stir for 5-8 minutes. After mixing evenly, add cashew nut shell oil modified phenolic resin and potassium titanate whisker in turn, and then stir for 5- 8 minutes to mix evenly; the friction filler is barium sulfate powder, graphite, v...

Embodiment 2

[0036] The friction material for the clutch driven disc is made of the following raw materials: cashew nut shell oil modified phenolic resin 14%, nitrile rubber powder 7%, basalt fiber 12%, steel fiber 4.6%, potassium titanate whisker 7.4%, barium sulfate 21% of powder, 12% of graphite, 6% of vermiculite, 5% of aluminum powder, 7% of barite, and 4% of brown corundum, all are mass percentages, and the total mass percentage of each component is 100%.

[0037] Each raw material was weighed according to the above mass percentage, and prepared with the steps described in Example 1.

Embodiment 3

[0039] The friction material for the clutch driven disc is made of the following raw materials: cashew nut shell oil modified phenolic resin 14%, nitrile rubber powder 7%, basalt fiber 7.4%, steel fiber 12%, potassium titanate whisker 4.6%, barium sulfate 21% of powder, 12% of graphite, 6% of vermiculite, 5% of aluminum powder, 7% of barite, and 4% of brown corundum, all are mass percentages, and the total mass percentage of each component is 100%.

[0040] Each raw material was weighed according to the above mass percentage, and prepared with the steps described in Example 1.

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Abstract

The invention discloses a friction material for a clutch driven disc and a preparation method of the friction material. The friction material is prepared from the following raw materials in percentage by mass: 14% of cashew nut shell oil modified phenol-formaldehyde resin, 7% of butyronitrile rubber powder, 4.6% to 12% of basalt fibers, 4.6% to 12% of steel fibers, 4.6% to 12% of potassium titanate whiskers, 21% of barium sulfate powder, 12% of graphite, 6% of vermiculite, 5% of aluminum powder, 7% of barite and 4% of brown alumina, wherein the total mass percent of all the ingredients is 100%. The method comprises the steps of weighing the materials according to the formula, then, carrying out uniform mixing, then, carrying out dry-process one-step hot briquetting, and carrying out heat treatment postprocessing, thereby preparing the friction material. The friction material has the characteristics of high-temperature resistance, wear resistance, impact resistance and good heat fade resistance; the preparation process is simple, the problems that similar friction materials are high in wear rate, unstable in coefficient of friction, relatively low in impact strength, and the like at high temperatures are effectively solved, and the performance requirements of enterprise production can be excellently met.

Description

technical field [0001] The invention relates to the technical field of a hybrid fiber reinforced resin-based friction material, in particular to a friction material for a clutch driven disc and a preparation method thereof. Background technique [0002] Friction materials have been widely used in brake friction materials and clutch driven discs of rail vehicles. They are very critical components for deceleration and start-stop functions. Through friction during driving, the kinetic energy of the machine is converted into heat or Other forms of energy, so as to achieve the purpose of braking. As the working conditions of friction materials are becoming more and more severe, at the same time, with the increasing attention at home and abroad on the impact of friction materials on human health, the surrounding environment and energy resources during the use of friction materials in various fields, in the production of enterprises In addition to good and moderate friction coeffi...

Claims

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Application Information

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IPC IPC(8): C08L61/14C08L9/02C08K13/04C08K7/10C08K7/06C08K7/08C08K3/30C08K3/04C08K3/34C08K3/08C08K3/22C09K3/14F16D69/02
CPCC08K2003/0812C08K2003/2227C08K2003/3045C08K2201/003C08K2201/014C08K2201/016C08L61/14F16D69/026C08L9/02C08K13/04C08K7/10C08K7/06C08K7/08C08K3/30C08K3/04C08K3/34C08K3/08C08K3/22
Inventor 梅启林严迪
Owner WUHAN UNIV OF TECH
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