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A friction plate for military vehicles with high weather resistance and its preparation method

A high-metal, friction plate technology, applied in friction linings, chemical instruments and methods, mechanical equipment, etc., can solve the problems of weak action, excessive density, braking whistle and other problems of military vehicles, and achieve excellent resistance to salt spray corrosion. performance, high and stable friction coefficient, the effect of increasing the friction coefficient

Active Publication Date: 2020-10-02
CENT SOUTH UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The friction lining with too high metal content has many disadvantages, such as rusting in a humid environment, causing the brake to lock up and cannot work normally; the corrosion is serious in a saline-alkaline environment and cannot be used; the friction lining is too dense and dense, and it is easy to Brake squealing in low temperature environment affects the safety of military vehicles
[0003] In the prior art, although lime or zinc powder is used for antirust in the existing methods, it only has an antirust improvement effect on the brake pads of family cars used in urban road conditions, and has an effect on military vehicles that are often in field operations or special working conditions. Weak and poor weather resistance

Method used

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  • A friction plate for military vehicles with high weather resistance and its preparation method
  • A friction plate for military vehicles with high weather resistance and its preparation method
  • A friction plate for military vehicles with high weather resistance and its preparation method

Examples

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Effect test

Embodiment 10

[0050] The raw material of the high-metal automobile friction sheet includes the following components calculated by weight percentage: 35% iron-chromium-aluminum fiber, containing carbon nanotube Ni 3 Al powder 5%, steel fiber 5%, copper fiber 3%, mineral fiber 5%, artificial graphite 5%, cellulose fiber 6%, resin 7%, rubber 4%, calcium carbonate 25%. After testing, the noise occurrence rate is 7.6%,

Embodiment 11

[0052] The raw material of the high-metal automobile friction sheet includes the following components calculated by weight percentage: 33% of iron-chromium-aluminum fiber, containing carbon nanotube Ni 3 Al powder 10%, steel fiber 5%, copper fiber 3%, mineral fiber 5%, artificial graphite 5%, cellulose fiber 6%, resin 7%, rubber 4%, calcium carbonate 22%. After testing, the noise occurrence rate is 5.4%.

Embodiment 12

[0054] The raw materials of the high-metal automobile friction sheet include the following components calculated by weight percentage: 30% of iron-chromium-aluminum fiber, containing carbon nanotube Ni 3 Al powder 15%, steel fiber 5%, copper fiber 3%, mineral fiber 5%, artificial graphite 5%, cellulose fiber 6%, resin 7%, rubber 4%, calcium carbonate 20%. After testing, the noise occurrence rate is 3.7%.

[0055] Ni containing carbon nanotubes 3 The preparation method of Al powder is as follows, in a tube furnace, at a catalytic temperature of 450°C-650°C, add methanol vapor at a rate of 1L / min to the carrier gas N at a rate of 2-8L / min. 2 In air, through porous Ni 3 In the pores of the Al alloy catalyst, methanol is catalyzed and decomposed in the pores and surfaces of the catalyst to obtain a mixture of black powder and catalyst powder. The catalytic time was adjusted, and in the mixtures prepared in Examples 10-12, the content of carbon nanotubes accounted for 4%, 5% and...

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Abstract

The invention belongs to the technical field of friction plates for vehicles and particularly relates to a weather-resistant high-metal friction plate for a military vehicle and a preparation method thereof. The weather-resistant high-metal friction plate for the military vehicle comprises raw materials including the following components of, by weight, 10-40% of iron-chromium-aluminum fibers, 7-30% of metal fibers, 7-21% of non-metal fibers, 5-15% of artificial graphene, 5-8% of resin, 2-5% of rubber and the balance calcium carbonate. The raw materials are weighed and mixed according to the designed ratio of all the components, the raw materials are subjected to hot-press forming, solidified and machined, and thus the weather-resistant high-metal friction plate is obtained. The weather-resistant high-metal friction plate is suitable for various harsh climates and environments and good in high-low temperature resistance and corrosion resistance, has the characteristics of high and stable friction coefficient and rapid and safe emergency braking, and is a high-performance special brake pad special for the military vehicle.

Description

technical field [0001] The invention belongs to the technical field of friction plates for vehicles, and in particular relates to a friction plate for military vehicles with high weather resistance and a preparation method thereof. Background technique [0002] Military vehicles have a heavy body and a heavy load. They are used in various climatic conditions such as severe cold and hot summer, and are used in various harsh natural environments such as sandy land, swamps, and rainforests. The requirements for braking materials are much higher than ordinary vehicles. The friction material used for braking is required to have a high coefficient of friction, so that it can brake quickly and efficiently in harsh environments. With the current research and development and preparation technology of the friction plate, in order to obtain a high and stable friction coefficient, it is necessary to use high-strength metal components, such as steel or copper fibers and powders, while en...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D69/02C09K3/14
CPCF16D69/02F16D69/026F16D2200/0021F16D2200/0026F16D2200/006F16D2200/0065F16D2200/0086F16D2250/0023F16D2250/0038
Inventor 刘咏刘伯威刘美玲刘彬段安婧涂元满
Owner CENT SOUTH UNIV