Wear-resistant low-noise soft brake pad and preparation method thereof

A brake pad and soft technology, applied in the field of brake materials, can solve the problems of a lot of dust and high noise of the brake pad, and achieve the effects of stable friction coefficient, small thermal expansion rate and improved braking performance

Inactive Publication Date: 2021-06-18
张豪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a wear-resistant and low-noise soft brake pad and

Method used

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  • Wear-resistant low-noise soft brake pad and preparation method thereof
  • Wear-resistant low-noise soft brake pad and preparation method thereof
  • Wear-resistant low-noise soft brake pad and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The first aspect of the present invention provides a wear-resistant and low-noise soft brake pad, comprising the following raw materials in parts by weight: 48-54 parts of anti-friction rubber particles, 7.5-13 parts of barite powder, 2-2 parts of artificial graphite 7 parts, 1-6 parts of friction powder, 4-9 parts of coke, 1-6 parts of yellow vermiculite, 0.4-5 parts of high-temperature calcined alumina, 7-16 parts of flake graphite containing 94% fixed carbon, 1-5 parts of aramid fiber 2-8 parts of zircon powder, 1-5 parts of calcium sulfate whiskers, 1-6 parts of heavy magnesium containing 90% magnesium, 1-3 parts of talcum powder;

[0034] The friction-reducing rubber particles include the following raw materials in parts by weight: 8 parts of rubber, 7 parts of reinforcing fiber, and 12 parts of thermosetting resin;

[0035] The rubber is one or more of styrene-butadiene rubber, nitrile rubber, chlorinated polyisobutylene rubber and silicone rubber;

[0036] The r...

Embodiment 2

[0045] figure 1 It is the preparation flowchart of the present invention.

[0046] A second aspect of the present invention provides a method for preparing a wear-resistant and low-noise soft brake pad, comprising the following steps:

[0047](1) Mixing: Use a plow-type mixer with a reamer or a vertical high-speed mixer for mixing, add all raw materials except aramid fiber and flake graphite to the mixer and start the reamer to mix 6.5 minutes; then add aramid fiber and flake graphite and start the reamer to mix for 0.5-1.5 minutes; store in a metal or plastic container with a cover; store it for a minimum of 1 day before use; the maximum validity period is 120 days;

[0048] (2) Compression: Use a hydraulic press and a six-cavity mold to press, adjust the temperature of the press mold to 155°C to 165°C; apply a rubber-type release agent; when pressing the mold, pressurize to 20MPa for 20 seconds, and then deflate for 5 seconds. Repeat the pressurization and deflation proces...

Embodiment 3

[0051] Wear-resistant and low-noise soft brake pads include the following raw materials by weight: 51 parts of anti-friction rubber particles, 10.5 parts of barite powder, 5 parts of artificial graphite, 3 parts of friction powder, 6 parts of coke, 3 parts of yellow vermiculite, high-temperature calcined 0.5 parts of alumina, 12 parts of flake graphite containing 94% fixed carbon, 1 part of aramid fiber, 4 parts of zircon powder, 1 part of calcium sulfate whisker, 2 parts of heavy magnesium containing 90% of magnesium, and 1 part of talcum powder.

[0052] The friction-reducing rubber particles include the following raw materials in parts by weight: 8 parts of rubber, 7 parts of reinforcing fiber, and 12 parts of thermosetting resin;

[0053] Described rubber is styrene-butadiene rubber and nitrile rubber;

[0054] The reinforcing fibers are metal fibers and carbon fibers;

[0055] The thermosetting resin is phenolic resin.

[0056] The fineness of the artificial graphite is...

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Abstract

The invention discloses a wear-resistant low-noise soft brake pad and a preparation method of the wear-resistant low-noise soft brake pad. The wear-resistant low-noise soft brake pad comprises the following raw materials in parts by weight: anti-attrition rubber particles, barite powder, artificial graphite, friction powder, coke, yellow vermiculite, high-temperature calcined alumina, crystalline flake graphite containing 94% of fixed carbon, aramid fibers, zircon powder, calcium sulfate whiskers, heavy magnesium containing 90% of magnesium, and talcum powder. The wear-resistant low-noise soft brake pad is prepared through standardized material mixing, pressing and curing steps at specific temperature, pressure and time. The wear-resistant low-noise soft brake pad has the advantages of stable friction coefficient, excellent wear resistance, less dust falling in the braking process, low noise and perfect braking experience.

Description

technical field [0001] The invention belongs to the technical field of brake materials, and in particular relates to a wear-resistant and low-noise soft brake pad and a preparation method thereof. Background technique [0002] With the rapid development of the transportation industry, the speed of vehicles continues to increase, the life of vehicles continues to increase, driving safety continues to improve, and the requirements for vehicle braking systems are also constantly increasing. In the research on automobiles and high-speed trains, it is found that in the braking system of vehicles, brake pads are the most critical safety components, and brake pads play a major role in controlling the braking effect. Brake pads have higher and higher requirements for wear-resistant materials. . [0003] At present, the brake pads on the market are mainly divided into the following categories: asbestos brake pads, NAO formula brake pads, semi-metal brake pads, metal-less brake pads,...

Claims

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Application Information

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IPC IPC(8): C09K3/14F16D69/02
CPCC09K3/14F16D69/02F16D69/023F16D2200/0034F16D2200/0052F16D2200/006F16D2200/0086
Inventor 张豪
Owner 张豪
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