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Friction material, brake pad with friction material and method for manufacturing brake pad

A technology of friction materials and raw materials, applied in friction linings, chemical instruments and methods, other chemical processes, etc., can solve problems such as thermal recession and wear, and achieve the effect of less material consumption, good thermal stability and low density

Active Publication Date: 2017-05-31
BEIJING TIANYISHANGJIA NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the defects of thermal fading and large wear in the existing brake pads, and to provide a friction material with good thermal stability and low wear, a brake pad containing the friction material and its manufacture. brake pad method

Method used

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  • Friction material, brake pad with friction material and method for manufacturing brake pad

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Effect test

Embodiment 1

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

[0030] Steel fiber 45g, modified phenolic resin 6.5g, nitrile rubber 8g, styrene-butadiene rubber 10g, graphite 5g, antimony sulfide 3g, potassium hexatitanate 6g, silicon dioxide 1g, aramid fiber 3g, calcium carbonate 1g, heavy oxide Magnesium 3.5g, white corundum 2g, silicon carbide 1.5g, carbon black 1g.

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

[0032] The above-mentioned raw material components were weighed and mixed uniformly to form a mixture. The mixture was placed in a mold and pressed under a pressure of 10 MPa for 15 seconds to obtain a blank, and then the blank was heated to 160° C. for 24 hours to obtain a brake pad A.

Embodiment 2

[0034] This embodiment provides a friction material whose raw materials include the following components:

[0035] 50g of steel fiber, 5g of boron modified phenolic resin, 6.5g of nitrile rubber, 11g of styrene-butadiene rubber, 1g of graphite, 5g of antimony sulfide, 5g of potassium hexatitanate, 1.5g of silicon dioxide, 1g of aramid fiber, 1.5g of calcium carbonate, Heavy magnesium oxide 2g, white corundum 1g, silicon carbide 2g, carbon black 2g.

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

[0037] The above-mentioned raw material components were weighed and mixed uniformly to form a mixture. The mixture was placed in a mold and pressed under a pressure of 9 MPa for 12 seconds to obtain a blank, and then the blank was heated to 180° C. for 22 hours to obtain a brake pad B.

Embodiment 3

[0039] This embodiment provides a friction material whose raw materials include the following components:

[0040] Steel fiber 55g, boron modified phenolic resin 8g, nitrile rubber 5g, styrene-butadiene rubber 12g, graphite 3g, antimony sulfide 1g, potassium hexatitanate 4g, silicon dioxide 2g, aramid fiber 5g, calcium carbonate 2g, heavy oxide Magnesium 5g, white corundum 1.5g, silicon carbide 1g, carbon black 1.5g.

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

[0042] The above-mentioned raw material components were weighed and mixed uniformly to form a mixture. The mixture was placed in a mold and pressed under a pressure of 12 MPa for 10 seconds to obtain a blank, and then the blank was heated to 200° C. for 20 hours to obtain a brake pad C.

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Abstract

The invention provides a friction material, a brake pad with the friction material and a method for manufacturing the brake pad. According to the friction material, through reasonable selection and matching of all raw material components, especially by controlling the proportion of inorganic matter and organic matter and adjusting the variety of the inorganic matter, a synergetic cooperation function is generated among all the components, and finally the brake pad made of the friction material has the beneficial effects of being good in heat stability, high in impact strength, large in hardness and resistant to wear; and besides, the density of the friction material is small, and the dead weight of the friction material under the same size condition is small, that is, the friction material is small in consumption when used for manufacturing the brake pad, so that the production cost of the brake pad can be lowered effectively on the premise of not sacrificing the performance of the brad pad; and accordingly, the friction material is suitable for braking of rail vehicles with the higher speed, the larger thermal load and the larger passenger capacity.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and in particular relates to a friction material, a brake pad for rail transit containing the friction material and a method for manufacturing the brake pad. Background technique [0002] In today's era, trains, automobiles, urban rails, etc. have become irreplaceable vehicles for land passenger and cargo transportation without exception, and play a pivotal role in social life. Industry will still be an important pillar industry of the national economy. With the continuous improvement of people's requirements for vehicle performance, such as high speed, heavy load, safety and reliability, comfortable ride, convenient operation, low energy consumption, pollution-free, lightweight, etc., the vehicle industry is showing a vigorous and diversified development trend. [0003] For a long time, my country's trains have been running at low speeds, and the degree of high-speed railways is an ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D69/02C09K3/14
CPCF16D69/023F16D69/028F16D2200/0021F16D2200/006F16D2200/0082F16D2200/0086
Inventor 吴佩芳李想
Owner BEIJING TIANYISHANGJIA NEW MATERIAL
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