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A kind of rice and wheat straw activated carbon powder artificial graphite friction material brake pad and preparation method thereof

A technology of activated carbon powder and rice straw, applied in the direction of friction linings, chemical instruments and methods, and other chemical processes, can solve the problems of waste of resources, environment, pollution, etc., to reduce noise, increase toughness, improve performance and braking effect of effect

Active Publication Date: 2017-07-18
JIANGSU JINMAISUI NEW ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The annual output of crop straw in our country reaches more than 700 million tons, but most of these resources are burned except for a small amount of feed, which not only causes a huge waste of resources but also causes serious environmental pollution

Method used

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  • A kind of rice and wheat straw activated carbon powder artificial graphite friction material brake pad and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 2

[0041] A method for manufacturing a brake pad made of rice and wheat straw activated carbon powder artificial graphite friction material, comprising the following steps:

[0042] Step 1. Mixing: Stir the material for friction material 1 in a high-speed mixer for 30 minutes. The mixed material contains the following ingredients: 25 parts of rice straw composite fiber, 6 parts of phenolic modified resin, 10 parts of silica fume cotton 5 parts of potassium titanate whiskers, 0.5 parts of pyrite, 0.5 parts of carbon black, 1 part of alumina, 7 parts of 40 mesh brass powder, 15 parts of rice straw activated carbon powder, 5 parts of secondary reduced iron powder, Rice and wheat straw activated carbon powder 25 parts of artificial graphite; all materials are fully fused and released into barrels;

[0043] Step 2. Steel back degreasing: remove the oil and rust on the steel back of the brake pad;

[0044] Step 3. Glue compounding: Dilute the special glue for steel back with alcohol o...

Embodiment 3

[0056] The prepared brake pads include a friction material 1, a sound-absorbing sheet 2, a steel back 3 and an accessory 4, the friction material 1 is pasted on the steel back 3, the sound-absorbing sheet 2 is installed on the back of the steel back 3, and the steel back Attachment 4 is riveted on the 3, powder spraying or paint is sprayed on the steel back 3, and code spraying is also sprayed on the steel back 3.

[0057] The main technical and performance indicators of the prepared brake pads are as follows:

[0058] Friction coefficient 0.25-0.45;

[0059] Wear rate 0.2-0.4;

[0060] Lifespan of more than 60,000 kilometers;

[0061] No noise;

[0062] Thermal recession ≤ 20%;

[0063] Impact strength not less than 0.3J / cm2;

[0064] Wear rate≤0.2;

[0065] The thermal expansion rate (400℃±10℃) is not more than 2.5%.

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Abstract

The invention discloses an artificial graphite friction material brake pad made of rice straw activated carbon powder and a manufacturing method thereof. The brake pad includes a friction material, a sound-absorbing sheet, a steel back and accessories, and the production material of the friction material includes the following components: rice 25 parts of straw composite fiber, 6 parts of phenolic modified resin, 10 parts of silica fume cotton, 5 parts of potassium titanate whiskers, 0.5 parts of pyrite, 0.5 parts of carbon black, 1 part of alumina, 7 parts of 40 mesh brass powder , 15 parts of rice-wheat straw activated carbon powder, 5 parts of secondary reduced iron powder, 25 parts of rice-wheat straw activated carbon powder artificial graphite; Attachments are riveted to the steel back. The wheat straw activated carbon powder artificial graphite friction material prepared by the present invention increases the toughness of the brake pad, improves its performance and braking effect, ensures the stability of the friction coefficient of the brake pad, reduces the noise generated during friction, and is environmentally friendly and non-toxic. Pollution, while expanding the utilization channels of rice straw.

Description

technical field [0001] The invention relates to a brake pad and a manufacturing method thereof, in particular to a brake pad made of rice straw activated carbon powder artificial graphite friction material and a manufacturing method thereof. Background technique [0002] The brake pads in motor vehicles are mainly made of various raw materials such as asbestos, steel fiber, and resin. Poor reliability, fast wear, easy aging and fracture, short service life and other defects. Secondly, because asbestos contains carcinogens, it has been banned by the state. At present, as a substitute for asbestos brake pads, they are generally made of mineral fiber, carbon fiber, steel fiber and other materials, but they all have low melting point, low thermal stability, poor heat dissipation effect, small friction coefficient, and poor braking performance to varying degrees. , Short service life, high manufacturing cost and other disadvantages, especially in the state of frequent braking o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D69/02C09K3/14
Inventor 熊万军王兰芳
Owner JIANGSU JINMAISUI NEW ENERGY TECH
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