Mineral fiber and carbon fiber automobile brake pad and preparation method thereof

A mineral fiber and carbon fiber technology, applied in chemical instruments and methods, friction linings, mechanical equipment, etc., can solve problems such as poor wear resistance and heat resistance, poor thermal conductivity of asbestos, and performance degradation of brake pads, etc., to achieve The data is stable, the noise is eliminated, and the performance is maintained well.

Inactive Publication Date: 2015-03-11
HANGZHOU KEBO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, (1) asbestos type: because asbestos fibers have the characteristics of high strength and high temperature resistance, they meet the requirements of brake pads and clutch discs, and have the tensile strength of fibers and the hardness and wear resistance of high-grade metal materials; but asbestos fibers Fiber may cause lung cancer and does not meet modern environmental protection requirements. Asbestos has poor thermal conductivity. After repeated braking, heat will accumulate in the brake pads, resulting in a decline in the performance of the brake pads.
(2) Semi-metallic type: rough steel wool is mainly used as a mixture of reinforcing fibers and important friction coefficients. The main advantage is that it can adapt to normal work at higher temperatures; but the noise is too large, and the wear rate of the brake disc is relatively high. Big
(3) Asbestos-free organic type: glass fiber, aromatic polyester fiber and other fibers are mainly used as reinforcement materials, and its performance mainly depends on the type of fiber and other mixtures. The advantages are no dust pollution and low noise. The disadvantage is that the wear resistance and heat resistance are not strong

Method used

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  • Mineral fiber and carbon fiber automobile brake pad and preparation method thereof
  • Mineral fiber and carbon fiber automobile brake pad and preparation method thereof
  • Mineral fiber and carbon fiber automobile brake pad and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0092] Such as figure 1 According to the preparation process shown, the weight of each component is determined according to the weight percentage of each component in the raw material, and the specific weight of each component is determined as follows: 6kg of PAN-based carbon fiber, 36kg of sepiolite fiber, 6kg of acicular wollastonite, cashew nut shell oil Modified phenolic resin 20kg, filler 32kg.

[0093] Sampling respectively according to the percentage by weight of each component in the filler, the specific weight of each component in the filler that determines 32kg is: calcium carbonate 7kg (21.88%), kaolin 4kg (12.5%), iron black 4kg (12.5%), oxidation Aluminum 3kg (9.38%), copper powder 1kg (3.12%), graphite particles 8kg (25%), friction powder 1kg (3.12%), molybdenum disulfide 4kg (12.5%). Put each component in the filler with the above weight into a high-speed mixer, mix thoroughly for 20 minutes, and make a filler.

[0094] Cut the PAN-based carbon fibers into cho...

Embodiment 2

[0097] Such as figure 1 According to the preparation process shown, the filler weight is determined according to the weight percentage of each component in the raw material, and the specific weight of each component is determined as follows: PAN-based carbon fiber 8kg, sepiolite fiber 36kg, acicular wollastonite 6kg, cashew nut shell oil modification 18kg of phenolic resin, 32kg of filler.

[0098] Sampling respectively according to the percentage by weight of each component in the filler, the specific weight of each component in the filler that determines 32kg is: calcium carbonate 7kg (21.88%), kaolin 4kg (12.5%), iron black 5kg (15.62%), oxidation Aluminum 3kg (9.38%), copper powder 1kg (3.12%), graphite particles 6kg (18.75%), friction powder 2kg (6.25%), molybdenum disulfide 4kg (12.5%). Put each component in the filler with the above weight into a high-speed mixer, mix thoroughly for 20 minutes, and make a filler.

[0099] Cut the PAN-based carbon fibers into chopped f...

Embodiment 3

[0102] Such as figure 1 According to the preparation process shown, the filler weight is determined according to the weight percentage of each component in the raw material, and the specific weight of each component is determined as follows: PAN-based carbon fiber 8kg, sepiolite fiber 30kg, acicular wollastonite 5kg, cashew nut shell oil modification 20kg of phenolic resin, 37kg of filler.

[0103] Sampling respectively according to the percentage by weight of each component in the filler, the specific weight of each component in the filler that determines 37kg is: calcium carbonate 10kg (27.03%), kaolin 4kg (10.81%), iron black 5kg (13.51%), oxidation Aluminum 3kg (8.11%), copper powder 1kg (2.7%), graphite particles 8kg (21.62%), friction powder 2kg (5.41%), molybdenum disulfide 4kg (10.81%). Put each component in the filler with the above weight into a high-speed mixer, mix thoroughly for 20 minutes, and make a filler.

[0104] Cut the PAN-based carbon fibers into chopped...

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Abstract

The invention provides a mineral fiber and carbon fiber brake pad. The mineral fiber and carbon fiber brake pad comprises the following raw materials by weight percentage: 3-25 wt. % of carbon fiber, 10-50 wt. % of sepiolite, 1-15 wt. % of wollastonite; 10-30 wt. % of phenolic resin and 5-50 wt. % of filler. The invention further provides a preparation method for the mineral fiber and carbon fiber brake pad. The mineral fiber and carbon fiber brake pad provided by the invention has the advantages that the high-temperature and high-speed braking performance, the braking comfort, the high-temperature and high-pressure resistance and the impact resistance are excellent, the wear rate is extremely low, not only can the service life of the product be prolonged to a great extent, but also the resource consumption can be reduced and the influence on the environment is reduced. Used raw materials for making the mineral fiber and carbon fiber brake pad are common and easy to obtain, the production cost can be effectively reduced and the mineral fiber and carbon fiber brake pad and the preparation method thereof have a great significance to the improvement of added values of rich mineral resources in China.

Description

technical field [0001] The invention belongs to the technical field of automobile brake systems, and in particular relates to a mineral fiber carbon fiber brake pad and a preparation method thereof. Background technique [0002] As one of the most important links in the entire braking system, the performance of the brake pad will directly affect the reliability of the entire braking system. During the braking process, the brake pads and brake discs (or brake drums) rub against each other to form a frictional couple, generate braking torque, and convert the kinetic energy of the car into heat energy. When braking, the temperature of the brake pads and brake discs will rise to 300-400°C. It can be seen that the brake pads and brake discs (or brake drums) are one of the most stressed components in the vehicle, and they are subjected to high temperature, mechanical and chemical extreme loads for a long time. Therefore, the basic quality requirements for brake pads are: wear re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D69/02C09K3/14C04B26/12
Inventor 姜如尧蔡斌何美凤张鸿羽徐伟
Owner HANGZHOU KEBO TECH
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