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Calcium carbonate crystal whisker reinforced high performance brake disc

A calcium carbonate whisker, high-performance technology, applied in the direction of friction linings, other chemical processes, chemical instruments and methods, etc., can solve the problems of difficult popularization and matching of products, high one-time investment, and large wear and tear of the pair, and achieve cycle The effect of high reuse rate, abundant raw material source, and low wear rate

Inactive Publication Date: 2009-05-27
江西元邦摩擦材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are two main types of brake pads: one is powder metallurgy material brake pads, which have the characteristics of sensitive and reliable braking, high temperature resistance, long life, good adaptability, and low sensitivity to oil and water. The dual wear is too large, the single payment cost is high, the one-time investment is high, and the product is difficult to popularize and match; the other type is the asbestos material brake pad, which has the characteristics of high strength and high temperature resistance, and its strong tensile capacity , can be matched with high-grade steel, and the price is relatively low, but asbestos is a carcinogen that affects human health, and has been banned by the United States and other countries

Method used

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  • Calcium carbonate crystal whisker reinforced high performance brake disc

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Comparison scheme
Effect test

Embodiment 1

[0009] Example 1: By weight, 10 parts of calcium carbonate whiskers, 15 parts of binder, 30 parts of mineral fiber, 25 parts of graphite, 5 parts of high-temperature binder, 3 parts of aramid fiber, and 10 parts of friction-increasing material , 2 parts of mineral filler. Among them, the calcium carbonate whiskers are selected from aragonite calcium carbonate, whose shape is needle-like single crystal, Mohs hardness is 3, the length is 20-30um, 30-40um, 50-80um and the aspect ratio is 20-30; It is thermoplastic phenolic resin; graphite is flake graphite; mineral fiber is silicate natural inorganic mineral fiber; high-temperature binder is sulfide high-temperature binder such as molybdenum disulfide and antimony sulfide; Oxides; mineral fillers are one or more of light calcium, heavy calcium, barium sulfate, and barium carbonate. according to figure 1 The process implements calcium carbonate whiskers to reinforce high-performance brake pads.

Embodiment 2

[0010] Embodiment 2: By weight ratio, get 20 parts of calcium carbonate whiskers, 10 parts of binder, 20 parts of mineral fiber, 15 parts of graphite, 2 parts of high-temperature binder, 1 part of aramid fiber reinforcement, and 5 parts of friction-increasing material , 27 parts of mineral fillers. Among them, the calcium carbonate whiskers are selected from aragonite calcium carbonate, whose shape is needle-like single crystal, Mohs hardness is 3, the length is 20-30um, 30-40um, 50-80um and the aspect ratio is 20-30; It is thermoplastic phenolic resin; graphite is flake graphite; mineral fiber is silicate natural inorganic mineral fiber; high-temperature binder is sulfide high-temperature binder such as molybdenum disulfide and antimony sulfide; Oxides; mineral fillers are one or more of light calcium, heavy calcium, barium sulfate, and barium carbonate. according to figure 1 The process implements calcium carbonate whiskers to reinforce high-performance brake pads.

Embodiment 3

[0011] Embodiment 3: By weight ratio, get 15 parts of calcium carbonate whiskers, 12 parts of binder, 25 parts of mineral fiber, 20 parts of graphite, 3 parts of high-temperature binder, 2 parts of aramid reinforcing fiber, and 8 parts of friction-increasing material , 15 parts of mineral fillers. Among them, the calcium carbonate whiskers are selected from aragonite calcium carbonate, whose shape is needle-like single crystal, Mohs hardness is 3, the length is 20-30um, 30-40um, 50-80um and the aspect ratio is 20-30; The agent is thermoplastic phenolic resin; the graphite is flake graphite; the mineral fiber is silicate-type natural inorganic mineral fiber; the high-temperature binder is a sulfide high-temperature binder such as molybdenum disulfide and antimony sulfide; Metal oxides; mineral fillers are one or more of light calcium, heavy calcium, barium sulfate, and barium carbonate. according to figure 1 The process implements calcium carbonate whiskers to reinforce high-...

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Abstract

The invention relates to a calcium carbonate whisker reinforced high-performance brake disc. The compositions of the brake disc in percentage by weight are: 10 to 20 percent of calcium carbonate whisker, 10 to 15 percent of adhesive, 20 to 30 percent of mineral fiber, 15 to 25 percent of graphite, 2 to 5 percent of high-temperature adhesive, 1 to 3 percent of aramid reinforced fiber, 5 to 10 percent of friction-increasing material and the balance being mineral fillings. The brake disc does not contain substances harmful to human body, and has the characteristics of high temperature resistance, abrasion resistance, soft material and good toughness, and so on. Moreover, the brake disc has the advantages that even at high temperature of between 300 and 350 DEG C, the brake disc can still maintain higher friction coefficient and lower abrasion rate with the average hardness value equal to 35HRM; the brake disc can resist frequent thermal changes and has excellent thermal fatigue resistance and long service life; and the material can be recycled and the brake disc has high recycling rate; in addition, the brake disc has abundant raw material sources and low cost.

Description

Technical field [0001] The invention relates to an automobile brake pad, in particular to a calcium carbonate whisker-reinforced high-performance brake pad without asbestos material. Background technique [0002] Brake pads are an important safety component of the car braking system. The quality of the brake pads directly affects the braking performance of the car, and is related to the safety of life and property of the car drivers and passengers. With the rapid development of automobile technology and the increase of vehicle speed and load, the requirements for brake pads are also getting higher and higher. At present, there are two main types of brake pads: one is powder metallurgy material brake pads, which have the characteristics of sensitive and reliable braking, high temperature resistance, long life, good adaptability, and low sensitivity to oil and water. The dual wear is too large, the single payment cost is high, the one-time investment is high, and the product ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D69/02C09K3/14
Inventor 卢明宇楼运渔楼敏锐
Owner 江西元邦摩擦材料有限责任公司
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