CN104482086A - Carbon fiber composite ceramic brake pad - Google Patents

Abstract

The invention discloses a carbon fiber composite ceramic brake pad. The carbon fiber composite ceramic brake pad is composed of the components including, by weight percentage, 5-25% of blanc fixe, 5-35% of ceramic fiber, 5-15% of carbon fiber, 5-25% of flake graphite, 5-25% of brass scales, 5-25% of potassium hexatitanate whiskers, 3-5% of frictional powder, 1-4% of rubber powder, 2-6% of waste tyre powder, 1-3% of brown fused alumina, 2-5% of ferrochrome powder, 1-4% of molybdenum disulfide, 6-8% of resin and 1-2% of aramid fiber. According to the carbon fiber composite ceramic brake pad, a carbon fiber composite ceramic matrix material is excellent in performance when serving as the frictional braking material, solves the problem of thermal recession compared with semimetal or other frictional materials, and with its natural wear-resisting performance, greatly enhances the friction performance of the brake pad.

Description

A kind of carbon fiber composite ceramic brake block

Technical field

The present invention relates to brake block technical field, be specifically related to a kind of carbon fiber composite ceramic brake block.

Background technique

Along with developing rapidly of science and technology, Brake Products is more and more high to the requirement of friction material, except at a high speed, and the requirements at the higher level such as high temperature, outside the Security in the bad working environments situations such as high pressure and travelling comfort, also been proposed energy-conservation, environmental protection in recent years, clean.

In China's the 12 five-year plan, propose clearly, the most important thing of the national economic development is energy-conservation, environmental protection, and steadily, the Scientific Outlook on Development continued, makes China develop into one in a short time and stablize, flourishing power.

In 30 years of reform and opening-up, the friction industry of China is also the same with national all trades and professions, there is significant progress, be main from the asbestos friction material at the beginning of last century 80, develop into the semimetal goods of the nineties gradually, 2000 later mixes and to optimize and nonmetal, and non-asbestos (NAO) goods are main.Successively release ceramic fibre brake component again in recent years.And move towards domestic and international market step by step.Although still belong to minority in the manufacturer of China's ceramic brake, universal not enough, really also illustrate that the developing steps forward international market of China's friction industry is drawn close and integrates with.In order to realize the overall technique production domesticization of ceramic brake, China successively last century the nineties from having introduced many ceramic fiber production technology lines abroad, established certain technical foundation for China progressively realizes Brake Products ceramic.

Along with the development and progress of society, the mankind are more and more high to the requirement of environmental protection, progressively urbanization of villages is realized in China, urban population increases year by year, people require also more and more higher to the overall situation of life, and the develop rapidly in recent years of China's automobile, enter prostatitis, the world (producing about 1,500 ten thousand per year).Just think so many automobile brake sheets, if the abrasive dust of every day has severe contamination, so the air quality in town and country will be had a strong impact on, if all brake blocks are all used instead free of contamination brake block, the change of matter will occur our inhabitation overall situation.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of Security, travelling comfort good, environmental protection, noiseless carbon fiber composite ceramic brake block.

Technical problem to be solved by this invention realizes by the following technical solutions:

A kind of carbon fiber composite ceramic brake block, is made up of the component of following mass percent:

Blanc fixe 5-25%

Ceramic fiber 5-35%

Carbon fiber 5-15%

Crystalline flake graphite 5-25%

Brass borings 5-25%

Six titanium whisker 5-25%

Frication powder 3-5%

Rubber powder 1-4%

Tyre talc 2-6%

Brown Alundum 1-3%

Chromite powder 2-5%

Molybdenum disulfide 1-4%

Resin 6-8%

Aramid fiber 1-2%.

The better quality percentage of each component is:

Blanc fixe 12%

Ceramic fiber 25%

Carbon fiber 5%

Crystalline flake graphite 10%

Brass borings 10%

Six titanium whiskers 10%

Frication powder 5%

Rubber powder 2%

Tyre talc 5%

Brown Alundum 2%

Chromite powder 4%

Molybdenum disulfide 2%

Resin 6%

Aramid fiber 2%.

A preparation process for carbon fiber composite ceramic brake block, comprises following process step:

1) prepare burden: batch mixing in proportion, weigh by recipe requirements;

2) batch mixing: batch mixing 20 minutes in feeding plough type batch mixer;

3) steel backing prepares: first with special cleaning machine cleaning steel backing surface blot, then carry out ball blast with Shot-blasting Machine and make steel backing reach the roughness of expection, finally carry out glue spraying process;

4) hot-forming: to be 150-160 DEG C by above-mentioned ready material and steel backing hot pressing die in temperature, pressure is 35MPa, the time is hot-forming under the condition of 10min, exit 3-6 time in the 1-3min that hot pressing starts, then carry out pressurize, the required dwell time is determined according to 0.5min/mm according to the thickness of goods;

5) heat treatment; By above-mentioned hot-forming after goods put into temperature control drying oven, heat-treat condition: 140 DEG C two hours, 160 DEG C two hours, 180 DEG C two hours;

6) through plain grinding after cooling with stove, chamfering, fluting, electrostatic spraying, mark, riveted joint, installation accessories, the obtained finished product of packaging;

7) check, warehouse-in.

Adopt carbon fiber as reinforcement, carbon fiber is the one of fiber, the amount of its carbon containing is more than 90%, carbon fiber has the features such as intensity is large, modulus is high, density is low, heat conduction is good, heat-resisting, rub resistance, adopt and use it as reinforcing fiber and diffusivity can be scattered in the matrix of friction material and form random interleaved structure, stability and the mechanical property of friction material submicroscopic structure can be ensured.

The invention has the beneficial effects as follows: the present invention adopts carbon fiber composite ceramic sill as its superior performance of friction braking material, relative to semimetal and other friction material, solve " heat fade " problem, in addition the wear-resisting property of its essence, makes the frictional behaviour of brake block be greatly improved.

Embodiment

The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific embodiment, setting forth the present invention further.

Embodiment 1

A kind of carbon fiber composite ceramic brake block, is made up of the component of following mass percent:

Blanc fixe 12.00%

Ceramic fiber 25.00%

Carbon fiber 5.00%

Crystalline flake graphite 10.00%

Brass borings 10.00%

Six titanium whiskers 10.00%

Frication powder 5.00%

Rubber powder 2.00%

Tyre talc 5.00%

Brown Alundum 2.00%

Chromite powder 4.00%

Molybdenum disulfide 2.00%

Resin 6.00%

Aramid fiber 2%;

Preparation process is as follows:

1) prepare burden: batch mixing in proportion, weigh by recipe requirements;

2) batch mixing: batch mixing 20 minutes in feeding plough type batch mixer;

3) steel backing prepares: first with special cleaning machine cleaning steel backing surface blot, then carry out ball blast with Shot-blasting Machine and make steel backing reach the roughness of expection, finally carry out glue spraying process;

4) hot-forming: to be 150-160 DEG C by above-mentioned ready material and steel backing hot pressing die in temperature, pressure is 35MPa, the time is hot-forming under the condition of 10min, exit 3-6 time in the 1-3min that hot pressing starts, then carry out pressurize, the required dwell time is determined according to 0.5min/mm according to the thickness of goods;

5) heat treatment; By above-mentioned hot-forming after goods put into temperature control drying oven, heat-treat condition: 140 DEG C two hours, 160 DEG C two hours, 180 DEG C two hours;

6) through plain grinding after cooling with stove, chamfering, fluting, electrostatic spraying, mark, riveted joint, installation accessories, the obtained finished product of packaging;

7) check, warehouse-in.

Embodiment 2

A kind of carbon fiber composite ceramic brake block, is made up of the component of following mass percent:

Blanc fixe 17%

Ceramic fiber 20%

Carbon fiber 10%

Crystalline flake graphite 6%

Brass borings 8%

Six titanium whiskers 12%

Frication powder 4%

Rubber powder 3%

Tyre talc 4%

Brown Alundum 2%

Chromite powder 2%

Molybdenum disulfide 3%

Resin 8%

Aramid fiber 1%.

Preparation process is as follows:

1) prepare burden: batch mixing in proportion, weigh by recipe requirements;

2) batch mixing: batch mixing 20 minutes in feeding plough type batch mixer;

3) steel backing prepares: first with special cleaning machine cleaning steel backing surface blot, then carry out ball blast with Shot-blasting Machine and make steel backing reach the roughness of expection, finally carry out glue spraying process;

4) hot-forming: to be 150-160 DEG C by above-mentioned ready material and steel backing hot pressing die in temperature, pressure is 35MPa, the time is hot-forming under the condition of 10min, exit 3-6 time in the 1-3min that hot pressing starts, then carry out pressurize, the required dwell time is determined according to 0.5min/mm according to the thickness of goods;

5) heat treatment; By above-mentioned hot-forming after goods put into temperature control drying oven, heat-treat condition: 140 DEG C two hours, 160 DEG C two hours, 180 DEG C two hours;

6) through plain grinding after cooling with stove, chamfering, fluting, electrostatic spraying, mark, riveted joint, installation accessories, the obtained finished product of packaging;

7) check, warehouse-in.

More than show and describe basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.

Claims (3)

1. a carbon fiber composite ceramic brake block, is characterized in that, is made up of the component of following mass percent:

Blanc fixe 5-25%

Ceramic fiber 5-35%

Carbon fiber 5-15%

Crystalline flake graphite 5-25%

Brass borings 5-25%

Six titanium whisker 5-25%

Frication powder 3-5%

Rubber powder 1-4%

Tyre talc 2-6%

Brown Alundum 1-3%

Chromite powder 2-5%

Molybdenum disulfide 1-4%

Resin 6-8%

Aramid fiber 1-2%.

2. a kind of carbon fiber composite ceramic brake block according to claim 1, is characterized in that, be made up of the component of following mass percent:

Blanc fixe 12%

Ceramic fiber 25%

Carbon fiber 5%

Crystalline flake graphite 10%

Brass borings 10%

Six titanium whiskers 10%

Frication powder 5%

Rubber powder 2%

Tyre talc 5%

Brown Alundum 2%

Chromite powder 4%

Molybdenum disulfide 2%

Resin 6%

Aramid fiber 2%.

3. prepare a technique for brake block described in claim 1 or 2, it is characterized in that:

1) prepare burden: batch mixing in proportion, weigh by recipe requirements;

2) batch mixing: batch mixing 20 minutes in feeding plough type batch mixer;

3) steel backing prepares: first with special cleaning machine cleaning steel backing surface blot, then carry out ball blast with Shot-blasting Machine and make steel backing reach the roughness of expection, finally carry out glue spraying process;

4) hot-forming: to be 150-160 DEG C by above-mentioned ready material and steel backing hot pressing die in temperature, pressure is 35MPa, the time is hot-forming under the condition of 10min, exit 3-6 time in the 1-3min that hot pressing starts, then carry out pressurize, the required dwell time is determined according to 0.5min/mm according to the thickness of goods;

5) heat treatment; By above-mentioned hot-forming after goods put into temperature control drying oven, heat-treat condition: 140 DEG C two hours, 160 DEG C two hours, 180 DEG C two hours;

6) through plain grinding after cooling with stove, chamfering, fluting, electrostatic spraying, mark, riveted joint, installation accessories, the obtained finished product of packaging;

7) check, warehouse-in.