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Automotive hard magnetic brake pad formula and manufacturing method thereof

A production method and technology of brake pads, which are applied in the field of brake pad formulations, can solve the problems that magnetic field control does not have material conditions and technical foundations, and achieve the effects of improving braking performance and reliability, reducing wear rate, and weakening influence

Active Publication Date: 2014-10-22
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if we can make full use of the positive influence of the magnetic field on the braking friction behavior and apply it to the active control of the braking friction process of the automobile, the braking efficiency and reliability of the automobile brake can be significantly improved, and the braking performance of the driver can be enhanced. Comfortable operation, but because the existing automobile brake pads are all non-metallic and non-ferromagnetic materials, the magnetic field control of the automobile brake friction process does not yet have the most basic material conditions and technical basis

Method used

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  • Automotive hard magnetic brake pad formula and manufacturing method thereof
  • Automotive hard magnetic brake pad formula and manufacturing method thereof
  • Automotive hard magnetic brake pad formula and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Organic binder: cashew nut shell oil modified phenolic resin 10 parts (cashew nut shell oil modified phenolic resin is a kind of modified phenolic resin), reinforcement material: steel fiber 16 parts, aramid fiber 4 parts, glass fiber 8 parts 7 parts of sepiolite fiber; friction modifier: 3 parts of graphite, 3 parts of molybdenum disulfide, 2 parts of zircon, 7 parts of chromite powder, 8 parts of feldspar, 9 parts of barite; filler: 4 parts of cashew nut shell oil friction powder, 2 parts of zirconium coupling agent (zirconium coupling agent is one of the coupling agents), 2 parts of release agent; hard magnetic material: 15 parts of NdFeB magnetic powder.

Embodiment 2

[0034] Organic binder: 10 parts of cashew nut shell oil modified phenolic resin, reinforcing material: 16 parts of copper fiber, 4 parts of aluminum silicate fiber, 8 parts of glass fiber, 7 parts of sepiolite fiber; friction modifier: 5 parts of graphite , 9 parts of wollastonite, 6 parts of marble, 8 parts of feldspar, 9 parts of barite; filler: 4 parts of cashew nut shell oil friction powder, 2 parts of zirconium coupling agent, 2 parts of release agent; hard magnetic material : Barium ferrite magnetic powder 10 parts.

Embodiment 3

[0036] Organic binder: 10 parts of nitrile modified phenolic resin (nitrile modified phenolic resin is a kind of modified phenolic resin), reinforcement material: 12 parts of steel fiber, 8 parts of copper fiber, 8 parts of glass fiber, sea 7 parts of foam stone fiber; friction modifier: 3 parts of graphite, 2 parts of molybdenum disulfide, 7 parts of zeolite, 8 parts of alumina, 8 parts of feldspar, 9 parts of barite; filler: 4 parts of cashew nut shell oil friction powder , 2 parts of silane coupling agent (silane coupling agent is one of the coupling agents), 2 parts of release agent; hard magnetic material: 15 parts of strontium ferrite magnetic powder.

[0037] The brake pads prepared in the three examples were subjected to constant pressure and constant speed tests on a friction standard testing machine, with a pressure of 0.98MPa and a speed of 16.7m / s, respectively at temperatures of 100°C, 150°C, 200°C, 250°C, Conduct friction tests at six temperature ranges of 300°C ...

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Abstract

The invention discloses an automotive hard magnetic brake pad formula and a manufacturing method thereof. The automotive hard magnetic brake pad formula is composed of, by weight, 8-20 parts of an organic binder, 10-45 parts of reinforced fibers, 20-50 parts of a friction performance regulator, 3-10 parts of filling and 5-40 parts of a hard magnetic material. The manufacturing method includes the processes of crushing, mixing, hot-press forming, magnetizing, thermal processing and surface processing. The automotive hard magnetic brake pad formula and the manufacturing method have the advantages that the hard magnetic material is added on the basis of an original automotive brake pad, so that friction coefficient is increased, abrasion ratio is lowered, friction stability is improved, and various complex braking conditions of an automobile are met; the added hard magnetic material is a highly-magnetic substance, so that the automotive hard magnetic brake pad after being magnetized is enabled to have a lot of residual magnetism, and basest material conditions are provided for magnetic field control in the process of braking friction. In addition, the hard magnetic brake pad after being magnetized can maintain magnetism for a long time, so that friction behaviors can be affected and adjusted without externally adding magnetic field energy in the process of braking.

Description

technical field [0001] The invention relates to a formula of a brake pad, in particular to a formula of an automobile hard magnetic brake pad and a preparation method thereof. Background technique [0002] The domestic research and development trend of friction materials for vehicles is not only limited to the simple requirements of reliable braking, but is developing towards the direction of braking safety, riding comfort, reducing pollution and protecting health. With the high-speed and heavy-duty of automobile transportation, traditional automobile brake pads can no longer meet the requirements of safety, reliability, comfort and environmental protection, mainly due to their large wear and serious damage to the counterpart, and continuous braking is easy to cause Brake failure etc. [0003] Traditional automobile brake pads usually use asbestos friction materials, semi-metal friction materials or asbestos-free organic friction materials. Asbestos brake pads have been re...

Claims

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Application Information

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IPC IPC(8): F16D69/02C09K3/14
Inventor 鲍久圣胡东阳阴妍刘金革刘同冈刘书进刘阳
Owner CHINA UNIV OF MINING & TECH
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