Environmental protection type friction material with less metal used for automobile brake block and preparation method thereof

A technology for friction materials and brake pads, which is applied in the field of metal-less environmentally friendly friction materials and its preparation, can solve the problems of damaging human organs and polluting the environment, and achieve the effects of less damage to the counterpart, simple preparation process, and low wear rate

Active Publication Date: 2018-11-02
QILU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the elements antimony, zinc, and lead are also non-degradable heavy metals, which not only pollute the environment, but also damage human organs after entering the human body directly or indirectly.

Method used

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  • Environmental protection type friction material with less metal used for automobile brake block and preparation method thereof
  • Environmental protection type friction material with less metal used for automobile brake block and preparation method thereof
  • Environmental protection type friction material with less metal used for automobile brake block and preparation method thereof

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Experimental program
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Effect test

Embodiment

[0023] (1) Ingredients: prepare the raw materials shown in Table 1, first put the modified phenolic resin, rubber powder, aramid pulp, carbon fiber, and inorganic mineral fiber into a high-speed mixer and mix until uniform; then add calcined kaolin, magnesium oxide, Alumina, barite, graphite and calcium carbonate are put into a high-speed mixer and fully mixed to obtain a uniformly mixed molding material.

[0024] (2) Drying: The molded material is dried in an electrothermal constant temperature blast drying oven for the purpose of removing low molecular volatiles. See Table 1 for the drying temperature and drying time.

[0025] (3) Hot pressing: add the dried molding material into the mold that has reached the preset temperature and mold it. The molding temperature, molding pressure, molding time, the number of times of pressure relief and deflation at the initial stage of pressing, and the time of each pressure relief are shown in Table 1. , to get the friction plate to be t...

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Abstract

An environmental protection type friction material with less metal used for automobile brake block is prepared with the following raw materials in parts by weight: 8-18 parts of modified phenolic resin, 4-14 parts of rubber powder, 0.2-1 part of PPTA-pulp, 0.2-1 part of carbon fiber, 0-4 parts of steel fiber, 10-22 parts of mineral fiber, 16-24 parts of calcined kaolin, 0.1-4 parts of magnesium oxide, 1-9 parts of aluminum oxide, 12-18 parts of barite powder, 2-8 parts of graphite, and 8-16 parts of calcium carbonate, the invention adopts the above technology and has the following advantages:1, the environmental protection friction material with less metal used for the automobile brake block has no asbestos, no sulfide, no copper and no other harmful heavy metal components, which is environmentally friendly; 2. with the co-action of each component, the invention has appropriate friction coefficient, high heat-resistance, low wear rate, low noise, less damage to coupled parts, rust resistance and other performances; 3, the preparation technology provided by the invention is simple, which is applicable for industrial production and has significant economic and social benefits.

Description

Technical field: [0001] The invention relates to a metal-less environment-friendly friction material for automobile brake pads and a preparation method thereof. Background technique: [0002] The automobile industry is the main industry of the world industry. The automobile manufacturing industry has been integrating the new scientific and technological achievements that have emerged with the times. At the same time, accompanied by the continuous optimization and improvement of road conditions, the development of automobiles has shown a clear pattern of high speed, high load and intelligence. feature. Therefore, the requirements for braking safety, reliability and stability of the friction braking system are becoming more and more stringent. Brake pads are the key components of the brakes, and friction materials are the key materials for friction in the formation of brake pads, which are consumables. With the rapid increase of car ownership, the environmental pollution caus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/14F16D69/02
CPCC09K3/149F16D69/02F16D2200/0021F16D2200/0026F16D2200/0034F16D2200/006F16D2200/0086
Inventor 何东新
Owner QILU UNIV OF TECH
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