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Friction material, brake pad made thereof and method for manufacturing brake pad

A technology of friction materials and brake pads, applied in friction linings, gear transmission mechanisms, mechanical equipment, etc., can solve problems such as limited high temperature resistance and thermal recession, achieve reduced density, light relative density, and improved impact resistance sexual effect

Inactive Publication Date: 2018-11-30
BEIJING TIANRENDAOHE NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problems of the existing high-speed train brake pads with limited high-temperature resistance and thermal fading, so as to provide a friction material with high temperature resistance and good thermal stability; at the same time, the present invention Also provided are a brake pad made of the friction material and a method for manufacturing the brake pad

Method used

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  • Friction material, brake pad made thereof and method for manufacturing brake pad

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Effect test

Embodiment 1

[0029] This embodiment 1 provides a friction material whose raw materials include the following components:

[0030] Steel fiber 150g, brass fiber 200g, mineral fiber 20g, nitrile rubber modified phenolic resin 30g, flake graphite 30g, petroleum coke 140g, molybdenum disulfide 10g, alumina 50g, chromite 30g, cast iron powder 60g, zinc powder 50g, 100g of ferric oxide, 40g of elastic particles, 30g of barium sulfate, and 60g of vermiculite.

[0031] The method for manufacturing a brake pad by using the above-mentioned friction material includes the following steps:

[0032] Weigh the above-mentioned raw material components and mix them uniformly to form a mixture; place the mixture in a mold, press at 16MPa and 155°C for 10s to obtain a brake pad blank, and then heat the obtained blank to 220°C for solidification 14h, the brake pad A was prepared.

Embodiment 2

[0034] Embodiment 2 provides a friction material whose raw materials include the following components:

[0035] Steel fiber 120g, brass fiber 240g, mineral fiber 25g, nitrile rubber modified phenolic resin 20g, flake graphite 20g, petroleum coke 170g, molybdenum disulfide 8g, alumina 40g, chromite 40g, cast iron powder 50g, zinc powder 40g, 120g of ferric oxide, 50g of elastic particles, 20g of barium sulfate, 70g of vermiculite.

[0036] The method for manufacturing a brake pad by using the above-mentioned friction material includes the following steps:

[0037] Weigh the above-mentioned raw material components and mix them uniformly to form a mixture; place the mixture in a mold, press at 20MPa and 155°C for 5s to obtain a brake pad blank, and then heat the obtained blank to 220°C for solidification 14h, the brake pad B was prepared.

Embodiment 3

[0039] Embodiment 3 provides a friction material whose raw materials include the following components:

[0040]Steel fiber 180g, brass fiber 160g, mineral fiber 15g, nitrile rubber modified phenolic resin 35g, flake graphite 40g, petroleum coke 110g, molybdenum disulfide 5g, alumina 60g, chromite 20g, cast iron powder 45g, zinc powder 60g, 80g of ferric oxide, 30g of elastic particles, 40g of barium sulfate, 45g of vermiculite.

[0041] The method for manufacturing a brake pad by using the above-mentioned friction material includes the following steps:

[0042] Weigh the above-mentioned raw material components and mix them uniformly to form a mixture; place the mixture in a mold, press at 15MPa and 160°C for 5s to obtain a brake pad blank, and then heat the obtained blank to 250°C for solidification 12h, the brake pad C was prepared.

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Abstract

The invention belongs to the technical field of brake materials, and discloses a friction material, a high-speed train brake pad made thereof and a method for manufacturing the brake pad. Components of the friction material are mutually matched, thereby effectively improving high temperature resistance of the friction material, reducing a heat fading phenomenon, ensuring stability of a friction coefficient during the working process, and improving driving safety. The friction material has a tolerable temperature of up to 700 DEG C, and fully satisfies the braking energy load requirements of a160 km / h power concentrated EMU train, thereby preventing the brake failure caused by the high temperature of the brake pad and ensuring the driving safety.

Description

technical field [0001] The invention belongs to the technical field of braking materials, and in particular relates to a friction material, a high-speed train brake pad made of the same and a method for manufacturing the brake pad. Background technique [0002] Transportation is an integral part of modern human life. With the changes of the times and the advancement of science and technology, there are more and more means of transportation around us, which brings great convenience to the lives of each of us. Railway, as an important infrastructure and a popular means of transportation, plays a key role in my country's comprehensive transportation system. With the development of the national economy continuously promoting the growth of railway transportation volume, railway transportation is in a very important position in the development of my country's national economy. [0003] For a long time, my country's trains have been running at low speeds, and the degree of high-s...

Claims

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Application Information

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IPC IPC(8): F16D69/02
CPCF16D69/028F16D2200/0021F16D2200/0026F16D2200/0052F16D2200/006F16D2200/0086F16D2250/0023
Inventor 吴佩芳释加才让钱钰升李想李君君
Owner BEIJING TIANRENDAOHE NEW MATERIAL CO LTD
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