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Additive for raw material mixing process of ceramic friction material, and preparation method thereof

A friction material and mixing process technology, which is applied in the field of additives and preparations of ceramic friction material raw material mixing process, can solve the problems of poor slipping and friction performance, poor toughness, potential safety hazards, etc., and achieve improved friction coefficient, improved surface activity, Prevent slippery effect

Active Publication Date: 2015-12-23
中山市翔宇汽车零件制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Due to its excellent characteristics, ceramic friction materials have been widely used in the field of braking, which makes the traditional pure metal braking devices easy to corrode, slip and have poor friction performance. The defects are solved, and the service life of the friction material is extended; however, with the continuous development of the ceramic friction material, the ratio and formula of the ceramic friction material are carried out on the friction performance of the ceramic friction material, such as the dynamic and static friction coefficient ratio, wear rate The improvement of thermal stability and so on has become a more difficult problem, which makes the dynamic and static friction coefficient of most ceramic friction materials maintain between 85-91%, and the wear rate increases continuously with the increase of temperature. trend, and the increase is relatively large, that is, the thermal stability of the ceramic friction material is poor, thereby shortening the service life of the ceramic friction material, and because the thermal stability of the existing ceramic friction material is poor, and thus in In low temperature environment, the toughness is poor, the hardness is high, and the wear resistance rate is strong, which makes the ceramic friction material easy to slip during braking, causing safety hazards

Method used

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  • Additive for raw material mixing process of ceramic friction material, and preparation method thereof

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Effect test

Embodiment 1

[0025] An additive used in the mixing process of ceramic friction material raw materials. The raw material components are 3kg of ceramic loose cotton, 0.3kg of carbon fiber, 0.1kg of potassium titanate fiber, 1kg of waste oil, 3kg of diesel oil, 1kg of paint, and 1kg of coal powder. Among them, ceramic loose cotton is made by treating 10 parts by mass of clay clinker, 9 parts by mass of alumina powder, 5 parts by mass of silica powder, and 1 part by mass of chrome sand at a temperature of 300 ° C for 20 minutes, and then melting them in an electric furnace It is obtained by spinning it into fibrous silk with a spinning machine, and then collecting cotton with a cotton collector.

[0026] The preparation method of the additive used in the raw material mixing process of the ceramic friction material comprises the following steps:

[0027] (1) Soak the ceramic loose cotton in waste oil, and during the soaking process, add one-third of the coal powder to it, and adjust the tempera...

Embodiment 2

[0032] An additive used in the mixing process of ceramic friction material raw materials. The raw material components are 7kg of ceramic loose cotton, 0.9kg of carbon fiber, 0.7kg of potassium titanate fiber, 3kg of waste oil, 7kg of diesel oil, 3kg of paint, and 7kg of coal powder. Among them, the ceramic loose cotton is made by treating 20 parts by mass of clay clinker, 11 parts by mass of alumina powder, 9 parts by mass of silica powder, and 3 parts by mass of chrome sand at a temperature of 500 ° C for 30 minutes, and then melting them in an electric furnace. It is obtained by spinning it into fibrous silk with a spinning machine, and then collecting cotton with a cotton collector.

[0033]The specific preparation method of the ceramic loose cotton is to mix clay clinker, alumina powder, silica powder and chrome sand, and then treat it at 500°C for 30 minutes, then use ultrasonic treatment for 10 seconds, and then add The clarified lime water accounting for 1% of the mixed...

Embodiment 3

[0041] An additive used in the mixing process of ceramic friction material raw materials, its raw material components by mass are ceramic loose cotton 5kg, carbon fiber 0.6kg, potassium titanate fiber 0.4kg, waste oil 2kg, diesel oil 5kg, paint 2kg, coal powder 3kg, Among them, the ceramic loose cotton is made by treating 15 parts by mass of clay clinker, 10 parts by mass of alumina powder, 7 parts by mass of silica powder, and 2 parts by mass of chrome sand at a temperature of 400 ° C for 25 minutes, and then melting them in an electric furnace. It is obtained by spinning it into fibrous silk with a spinning machine, and then collecting cotton with a cotton collector.

[0042] The specific preparation method of the ceramic loose cotton is to mix clay clinker, alumina powder, silica powder and chrome sand, and then treat it at 400°C for 25 minutes, then use ultrasonic treatment for 20s, and then add The clarified lime water accounting for 3% of the mixed material is sent into ...

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Abstract

The present invention relates to the technical field of ceramic friction material additives, especially to an additive for the raw material mixing process of a ceramic friction material, and a preparation method thereof. According to the present invention, ceramic loose cotton, carbon fibers, potassium titanate fibers, hogwash oil, diesel oil, paint and coal powder are subjected to reasonable ratio design so as to make the ceramic loose cotton, the carbon fibers and the potassium titanate fibers in the prepared additive be subjected to the microscopic chemical reaction, enhance the toughness of the carbon fibers, the potassium titanate fibers and the ceramic loose cotton, and improve the surface activity, and the subsequent preparation process is combined so as to make the materials in the additive be uniformly dispersed, make the treatment degree deep, and make the surface activity of the ceramic loose cotton, the carbon fibers and the potassium titanate fibers and the internal structure toughness be improved, such that the friction coefficient and the wear rate of the ceramic friction material are improved, the defect of easy slipping of the ceramic friction material is prevented, and the safety is improved.

Description

technical field [0001] The invention relates to the technical field of additives for ceramic friction materials, in particular to an additive used in the raw material mixing process of ceramic friction materials and a preparation method thereof. Background technique [0002] Due to its excellent characteristics, ceramic friction materials have been widely used in the field of braking, which makes the traditional pure metal braking devices easy to corrode, slip and have poor friction performance. The defects are solved, and the service life of the friction material is extended; however, with the continuous development of the ceramic friction material, the ratio and formula of the ceramic friction material are carried out on the friction performance of the ceramic friction material, such as the dynamic and static friction coefficient ratio, wear rate The improvement of thermal stability and so on has become a more difficult problem, which makes the dynamic and static friction ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/632
Inventor 周贵宏单全庆
Owner 中山市翔宇汽车零件制造有限公司
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