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Granules with high-temperature decay-resistant function and large porosity and preparation method of granules

A technology of anti-fading and porosity, applied in the field of friction plate materials and its preparation, can solve the problems of worn brake discs, high density, high hardness, etc., and achieve increased friction coefficient, small density and compactness, and good sound absorption performance Effect

Inactive Publication Date: 2016-06-08
HENGYANG ANPIN AUTOMOBILE FITTINGS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It solves the problem of high noise and wear of the brake disc during use due to the high density and high hardness of the material of the friction plate in the existing brake pad, and improves the thermal conductivity and thermal decay performance of the existing friction plate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A large porosity granular material with high temperature anti-decay function, which is prepared by the following method:

[0033] The formula includes: 12 parts by weight of Nakaif fiber, 7 parts by weight of cryolite, 15 parts by weight of magnetite powder, 15 parts by weight of diatomaceous earth, 7 parts by weight of barium sulfate, 1 part by weight of antimony sulfide, and 7 parts by weight of fiber sepiolite part, 5 parts by weight of white vermiculite, 4 parts by weight of expanded graphite, 2 parts by weight of tire powder, and 8 parts by weight of F826 adhesive;

[0034] Its preparation process steps are as follows:

[0035] The first step: batching according to the components contained in the material and their respective parts by weight;

[0036] Step 2: Mix the raw materials evenly, put them into a double-roll rubber mill for melting, melt and plasticize the raw materials, and the surface temperature of the rollers is 50-60°C; the melting time is 20-30 minut...

Embodiment 2

[0039] A large porosity granular material with high temperature anti-decay function, which is prepared by the following method:

[0040] The formula includes: 17 parts by weight of Nakaif fiber, 10 parts by weight of cryolite, 17 parts by weight of magnetite powder, 17 parts by weight of diatomite, 10 parts by weight of barium sulfate, 3 parts by weight of antimony sulfide, and 10 parts by weight of fiber sepiolite 10 parts by weight of white vermiculite, 7 parts by weight of expanded graphite, 4 parts by weight of tire powder, 15 parts by weight of F826 adhesive;

[0041] Its preparation process is identical with embodiment 1.

Embodiment 3

[0043] A method for preparing a large-porosity granular material with high-temperature anti-decay function, the formula comprising: 12 parts by weight of Nakaeff fiber, 7 parts by weight of cryolite, 15 parts by weight of magnetite powder, and 15 parts by weight of diatomite , 7 parts by weight of barium sulfate, 1 part by weight of antimony sulfide, 7 parts by weight of fibrous sepiolite, 5 parts by weight of white vermiculite, 4 parts by weight of expanded graphite, 2 parts by weight of tire powder, and 8 parts by weight of F826 adhesive;

[0044] Its preparation process steps are as follows:

[0045] The first step: batching according to the components contained in the material and their respective parts by weight;

[0046] Step 2: Mix the raw materials evenly, put them into a double-roll rubber mill for melting, melt and plasticize the raw materials, and the surface temperature of the rollers is 50-60°C; the melting time is 20-30 minutes;

[0047] The third step: crush th...

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Abstract

The invention provides granules with a high-temperature decay-resistant function and large porosity and a preparation method of the granules. Formulas used in the method are as follows: NACF fibers, cryolite, magnetite powder, kieselguhr, barium sulfate, antimony sulfide, fibrous sepiolite, white vermiculite, expanded graphite, tire powder and an F826 adhesive. A preparation technology comprises the following steps: evenly mixing raw materials according to the formulas; feeding into a double-roll rubber open mill for smelting, and fusing and plasticizing the raw materials; and finally pulverizing the plasticized materials into granules with grain sizes of 8-20 meshes so as to obtain the product of the invention. The granules can improve thermal decay performance of a friction plate, increase the friction coefficient of the friction plate at high temperature, guarantee stability of high-temperature brake of an automobile, and meanwhile has good sound absorption property and small density and compactness, so that the purposes of reducing brake noises and reducing abrasion of a brake disc are achieved.

Description

technical field [0001] The invention relates to a material of a friction plate in an automobile brake pad and a preparation method thereof, in particular to a large porosity granular material with a high-temperature anti-decay function and a preparation method thereof. Background technique [0002] The braking system is one of the most important safety systems on a car, and the brake pad is an important part of the entire braking system, which will directly affect the reliability of the entire braking system. The discs rub against each other to form a frictional couple, which generates braking torque and converts the kinetic energy of the car into heat energy. The temperature during braking will rise to 300-400°C. [0003] Conventional brake pads are divided into: [0004] 1. Asbestos type, because asbestos fiber has the characteristics of high strength and high temperature resistance, it meets the requirements of brake pads and clutch discs, and has the tensile strength of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D69/02C09K3/14
Inventor 郑辉
Owner HENGYANG ANPIN AUTOMOBILE FITTINGS
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