Carbon-based ceramic friction material and application thereof

A technology of friction materials and carbon-based ceramics, applied in friction linings, other chemical processes, gear transmission mechanisms, etc., can solve the problems affecting the stability of friction coefficient and wear rate, toughness, poor thermal conductivity and air permeability, and poor stability of friction coefficient, etc. problems, to achieve the effect of improving thermal recession resistance, improving mechanical properties, and stabilizing friction coefficient

Active Publication Date: 2020-05-19
贵州领想科技制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ceramic-based friction materials have low density, high wear resistance, and stable high-temperature performance, but poor toughness, thermal conductivity, and air permeability, and there are defects such as friction fading and insufficient mechanical strength in braking performance.
[0004] In addition to ceramic-based friction materials, there are also metal-based, semi-metal-based, carbon-based, etc., but metal-based friction materials, such as iron-based friction materials, have a high friction coefficient, good heat resistance, high strength, and low cost, but they are easy to match with the dual The friction coefficient above 600°C has poor stability, poor wear resistance, and the friction surface is easy to oxidize. Copper-based friction materials have good thermal conductivity, stable friction coefficient, and low wear rate, but the cost is high and the high temperature performance is not good. Stable; semi-metallic friction material has good thermal conductivity and wear resistance, high friction coefficient, but when the temperature is above 350 ℃, the friction performance is not stable enough, and problems such as thermal decay rate and high hardness often occur in the braking process; carbon-based friction material It has the advantages of good thermal stability at high temperature (below 2000°C), wear resistance and low density, but in a humid environment at room temperature, the friction surface is easily oxidized, which strongly affects the stability of the friction coefficient and wear rate, and the preparation cycle is long and higher cost

Method used

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  • Carbon-based ceramic friction material and application thereof
  • Carbon-based ceramic friction material and application thereof
  • Carbon-based ceramic friction material and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A carbon-based ceramic friction material, comprising the following raw materials in parts by weight: 20 parts of ceramic fiber, 5 parts of quartz fiber, 1 part of steel fiber, 1 part of aluminum fiber, 10 parts of sisal fiber, 0.8 part of friction performance regulator, filler 20 parts, 2 parts of binder;

[0032] The friction performance modifier is composed of the following raw materials in parts by weight: 1 part of copper powder, 8 parts of bamboo charcoal powder, 1 part of tungsten powder, 0.04 part of silver powder and 0.01 part of rare earth powder.

[0033] The particle size of the friction modifier is 80 mesh;

[0034] The filler is composed of the following raw materials in parts by weight: 30 parts of vermiculite powder, 10 parts of potassium feldspar, 50 parts of ferronickel slag, 15 parts of coal gangue powder, and 15 parts of medical stone powder;

[0035] The particle size of the filler is 80 mesh;

[0036] The binder is composed of the following raw ma...

Embodiment 2

[0038] A carbon-based ceramic friction material, comprising the following raw materials in parts by weight: 40 parts of ceramic fiber, 9 parts of quartz fiber, 3 parts of steel fiber, 3 parts of aluminum fiber, 18 parts of sisal fiber, 1.4 parts of friction performance regulator, filler 30 parts, 4 parts of binder;

[0039] The friction performance regulator is composed of the following raw materials in parts by weight: 2 parts of copper powder, 10 parts of bamboo charcoal powder, 3 parts of tungsten powder, 0.08 part of silver powder and 0.03 part of rare earth powder.

[0040] The particle size of the friction modifier is 100 mesh;

[0041] The filler is composed of the following raw materials in parts by weight: 40 parts of vermiculite powder, 15 parts of potassium feldspar, 60 parts of ferronickel slag, 20 parts of coal gangue powder, and 20 parts of medical stone powder;

[0042] The particle size of the filler is 100 mesh;

[0043] The binder is composed of the followi...

Embodiment 3

[0045] A carbon-based ceramic friction material, comprising the following raw materials in parts by weight: 30 parts of ceramic fiber, 7 parts of quartz fiber, 2 parts of steel fiber, 2 parts of aluminum fiber, 14 parts of sisal fiber, 1.1 parts of friction performance regulator, filler 25 parts, 3 parts of binder;

[0046] The friction performance modifier is composed of the following raw materials in parts by weight: 1.5 parts of copper powder, 9 parts of bamboo charcoal powder, 2 parts of tungsten powder, 0.06 part of silver powder and 0.02 part of rare earth powder.

[0047] The particle size of the friction modifier is 90 mesh;

[0048] The filler is composed of the following raw materials in parts by weight: 35 parts of vermiculite powder, 125 parts of potassium feldspar, 55 parts of ferronickel slag, 18 parts of coal gangue powder, and 17 parts of medical stone powder;

[0049] The particle size of the filler is 90 mesh;

[0050] The binder is composed of the followin...

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Abstract

The invention relates to the technical field of friction materials, in particular to a carbon-based ceramic friction material and application thereof, the carbon-based ceramic friction material is prepared from the following raw materials in parts by weight: 20-40 parts of ceramic fibers, 5-9 parts of quartz fibers, 1-3 parts of steel fibers, 1-3 parts of aluminum fibers, 10-18 parts of sisal fibers, 0.8-1.4 parts of a friction performance regulator, 20-30 parts of a filler and 2-4 parts of a binder. According to the carbon-based ceramic friction material and the application thereof, the friction material has no heat recession, stable friction coefficient, good friction performance, stable braking, sensitive and reliable, low hardness, low wear rate and no damage to dual, and is used for manufacturing brake pads, and thus the brake pads have the characteristics of high temperature resistance, wear resistance, ablation resistance, high specific strength, high specific modulus, low noise, small thermal expansion coefficient, short run-in period, low braking dust, stable friction braking torque and the like.

Description

technical field [0001] The invention relates to the technical field of friction materials, in particular to a carbon-based ceramic friction material and its application. Background technique [0002] With the development of vehicles in the direction of environmental protection, high speed and heavy load, people put forward higher requirements on the performance of automobile braking materials, especially in high temperature braking, the stability and safety of materials are very important. Therefore, developing and researching a kind of high-performance automobile brake material is the task of top priority of today's friction material industry. [0003] As a new type of brake pad, ceramic brake pads have great advantages in braking performance, life and environmental impact. Ceramic brake pads are mainly composed of binders, reinforcing fibers, friction modifiers and fillers. Ceramic-based friction materials have low density, high wear resistance, and stable high-temperatu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D69/02C09K3/14
CPCC09K3/14F16D69/023F16D69/026F16D2200/0026F16D2200/003F16D2200/0039F16D2200/0052F16D2200/006F16D2200/0065F16D2200/0086F16D2250/0023
Inventor 周贵宏
Owner 贵州领想科技制造有限公司
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