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Airplane brake pad friction material and manufacturing process for airplane brake pad

A friction material and manufacturing process technology, applied in the field of aircraft brake pad material processing, can solve problems such as damage to the brake disc, and achieve the effects of short braking distance, long service life and satisfactory average friction coefficient

Inactive Publication Date: 2018-03-13
贵州新安航空机械有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to meet the braking requirements of aircraft, increase the service life of brake discs and brake pads, and overcome the problem that brake pads damage brake discs during braking, the invention provides a friction material for aircraft brake pads Material manufacturing process of aircraft brake pads

Method used

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  • Airplane brake pad friction material and manufacturing process for airplane brake pad

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Comparison scheme
Effect test

Embodiment 1

[0023] A kind of manufacturing technology that adopts the friction material provided by the invention to manufacture aircraft brake pad, comprises the following steps:

[0024] a. Raw material preparation: Weigh 15 parts of the dried original friction material phenolic resin, 8 parts of styrene-butadiene rubber, 5 parts of high-purity petroleum coke, 2 parts of alumina, 4 parts of molybdenum disulfide, and ferrochrome powder according to the weight ratio 15 parts, 10 parts of zircon powder, 4 parts of sulfur, 20 parts of barium sulfate, 7 parts of aramid fiber, 10 parts of steel wool fiber, the skeleton is ready for use after sand blowing;

[0025] b. Raw material mixing and preparation: using graded mixing method, first pour phenolic resin, styrene-butadiene rubber, aramid fiber, and steel wool fiber into a 5000r / min high-speed mixer and mix evenly; keep the stirring speed constant and then add oxidation Aluminum, ferrochrome powder, zircon powder, barium sulfate, and sulfur ...

Embodiment 2

[0033] A kind of manufacturing technology that adopts the friction material provided by the invention to manufacture aircraft brake pad, comprises the following steps:

[0034] a. Raw material preparation: Weigh 20 parts of the dried original friction material phenolic resin, 9 parts of styrene-butadiene rubber, 5 parts of high-purity petroleum coke, 2 parts of alumina, 4 parts of molybdenum disulfide, and ferrochrome powder according to the weight ratio 15 parts, 12 parts of zircon powder, 5 parts of sulfur, 25 parts of barium sulfate, 10 parts of aramid fiber, 16 parts of steel wool fiber, the skeleton is used after sand blowing;

[0035] b. Raw material mixing and preparation: using graded mixing method, first pour phenolic resin, styrene-butadiene rubber, aramid fiber, and steel wool fiber into a 5050r / min high-speed mixer and mix evenly; keep the stirring speed constant and then add oxidation Aluminum, ferrochrome powder, zircon powder, barium sulfate, and sulfur are mixe...

Embodiment 3

[0041] A kind of manufacturing technology that adopts the friction material provided by the invention to manufacture aircraft brake pad, comprises the following steps:

[0042] a. Raw material preparation: Weigh 13 parts of phenolic resin, 7 parts of styrene-butadiene rubber, 3 parts of high-purity petroleum coke, 2 parts of alumina, 2 parts of molybdenum disulfide, and ferrochrome powder according to the weight ratio 10 parts, 10 parts of zircon powder, 3 parts of sulfur, 25 parts of barium sulfate, 7 parts of aramid fiber, 13 parts of steel wool fiber, the skeleton is ready for use after sand blowing;

[0043] b. Raw material mixing and preparation: using graded mixing method, first pour phenolic resin, styrene-butadiene rubber, aramid fiber, and steel wool fiber into a 4950r / min high-speed mixer and mix evenly; keep the stirring speed constant and then add oxidation Aluminum, ferrochrome powder, zircon powder, barium sulfate, and sulfur are mixed evenly; finally, high-purit...

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Abstract

The invention discloses an airplane brake pad friction material comprising the following raw materials of, by weight, 13-20 parts of phenolic resin, 3-9 parts of styrene butadiene rubber, 1-5 parts ofhigh-purity petroleum coke, 1-2 parts of alumina, 1-4 parts of molybdenum disulfide, 8-15 parts of ferrochrome powder, 8-12 parts of zircon powder, 3-5 parts of sulfur, 15-30 parts of barium sulfate,3-10 parts of aramid fiber and 8-16 parts of steel wool fiber. The invention further discloses a manufacturing process for an airplane brake pad. The manufacturing process comprises the following steps of preparation of the raw materials, mixing preparation of the raw materials, pressing forming, heating solidification, shaping and pruning, and paint spraying and packaging. The brake pad providedby the invention is stale in friction coefficient, the average friction coefficient meets the actual use requirement, the brake distance is short, no obvious heat fading phenomenon occurs, the mutualabrasion quantity between the brake pad and a brake disc is very small, and the service lives of the brake pad and the brake disc are long.

Description

technical field [0001] The invention relates to the technical field of aircraft brake pad material processing, in particular to an aircraft brake pad friction material and a manufacturing process of the aircraft brake pad. Background technique [0002] With the rapid development of my country's medium and small aircraft and UAV technology, the development of its consumable parts - brake pads has become one of the key technologies. During the landing braking process of the aircraft, most of its kinetic energy is converted into heat energy, which makes the brake pads and brake discs rub against each other, and the surface temperature rises rapidly. In the process of high-speed braking, the brake pads have to bear greater shear force, higher temperature and pressure, which puts forward high requirements on the performance of the brake pads. [0003] The powder metallurgy brake pads currently used for aircraft braking are prone to damage to the brake disc due to the high hardne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D69/02B29C43/02B29C43/58
CPCF16D69/026B29C43/02B29C43/58B29C2043/5808B29C2043/5816F16D2200/0008F16D2200/006F16D2200/0086
Inventor 刘冰清蒋青松徐英
Owner 贵州新安航空机械有限责任公司