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Formula of ceramic radical friction material for automobile braking friction facing

A technology for friction linings and friction materials, applied in the field of friction materials and ceramic-based friction materials, can solve problems such as poor wear resistance and noise pollution, and achieve the effects of reducing wear rate, improving yield and improving braking efficiency.

Inactive Publication Date: 2008-01-30
SHAANXI LIZHIQUAN IND TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, GM automobile brake friction linings use semi-metallic friction materials, which are very environmentally friendly compared with asbestos-based friction materials and semi-metal-based friction materials, and greatly reduce dust pollution, but there are still wear resistance caused by high-temperature thermal recession Poor and noise pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0023] A kind of preparation method of material of the present invention is provided below:

[0024] Ingredients: Weigh each component material according to the above ratio content;

[0025] Mixing: Put the weighed materials into the mixer, and the mixing time is 16 minutes;

[0026] Hot pressing: pressing pressure 300 kg / cm2, temperature 150 degrees Celsius, pressing time 60 seconds / mm, exhaust times 3 times;

[0027] Heat treatment: room temperature to 160 degrees: 240 minutes

[0028] 160 degrees constant temperature: 120 minutes

[0029] 160 degrees to 180 degrees: 60 minutes

[0030] 180 degrees constant temperature: 120 minutes

[0031] Then the heat treatment is completed when the temperature is lowered to 50 degrees, and the material of the present invention is obtained.

[0032] Then the above-mentioned prepared materials are subjected to mechanical processing such as grinding, chamfering, and drilling according to the technological requirements, and are directly...

Embodiment 1

[0037] The ceramic-based friction material used for automobile brake friction linings is composed of:

[0038] Adhesive (butyronitrile modified phenolic resin) 5%

[0039] 33.5% reinforcing agent, composed of aramid fibers, ceramic fibers, potassium titanate whiskers and calcium carbonate whiskers with a weight ratio of 1:8:8:2,

[0040] Grinding agent 7%, composed of zirconia and aluminum oxide in a ratio of 1:1 by weight,

[0041] Antiwear lubricant 11.3%, composed of molybdenum disulfide, antimony sulfide, graphite and calcined petroleum coke in a weight ratio of 1:3.5:1.9:1.75,

[0042] Elastic toughener 5.7%, is made up of nitrile rubber powder, vermiculite and friction powder of 1: 2.85: 1.6 by weight ratio,

[0043] Filling material 37.5%, composed of chromite powder, barite powder and light calcium in a weight ratio of 2.5:9:4.75,

[0044] The total amount of the above components is 100%.

Embodiment 2

[0046] Adhesive (butylene cyanide modified phenolic resin) 15%

[0047] 23.5% reinforcing agent, composed of aramid fibers, ceramic fibers, potassium titanate whiskers and calcium carbonate whiskers with a weight ratio of 1:8:8:2,

[0048] Anti-wear lubricant 18.3%, composed of molybdenum disulfide, antimony sulfide, graphite and calcined petroleum coke in a weight ratio of 1:3.5:1.9:1.75,

[0049] Elastic toughening agent 15.7%, is made up of nitrile rubber powder, vermiculite and friction powder of 1: 2.85: 1.6 by weight ratio,

[0050] Filling material 27.5%, composed of chromite powder, barite powder and light calcium in a weight ratio of 2.5:9:4.75,

[0051] The total amount of the above components is 100%.

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PUM

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Abstract

The invention discloses a prescription of a ceramic-based friction material used in a vehicle braking friction pad, comprising the components (by weight): adhesives 5 percent-15 percent, intensifier 23.5 percent-33.5 percent, grinding aid 0 percent-7 percent anti-wearing lubricant 11.3 percent-21.3 percent, elastic toughening agent 5.7 percent-15.7 percent and filling material 27.5 percent-37.5 percent. The total amount of the components is 100 percent. The materials of the invention can be processed and molded into the vehicle braking pad that is applicable to friction braking on a vehicle braking device. The anti-wearing performance of the pad can be greatly enhanced, thereby reducing noise pollution and promoting the performance of the braking system of the vehicle.

Description

technical field [0001] The invention belongs to the technical field of new materials, and relates to a friction material, in particular to a ceramic-based friction material used for a friction lining of an automobile brake system. Background technique [0002] The brake system of a car is the most critical safety system of a car, and the performance of the friction lining determines the performance of the brake system to a large extent. At present, GM automobile brake friction linings use semi-metal-based friction materials, which are very environmentally friendly compared with asbestos-based friction materials and semi-metal-based friction materials, greatly reducing dust pollution, but still have wear resistance caused by high-temperature thermal recession Poor and noise pollution issues. Contents of the invention [0003] The object of the present invention is to provide a ceramic-based friction material for automobile brake friction linings, which can greatly improve ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/14C08L9/02F16D69/02C08L61/14
Inventor 李军魂
Owner SHAANXI LIZHIQUAN IND TRADE
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