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Metal-free ceramic-type brake plate and processing method

A brake pad and ceramic type technology, which is applied in the field of metal-free ceramic brake pads and processing, can solve the problems of high-temperature slipping of dual brake discs, large dual wear, heat loss of asbestos-based friction plates, etc., and achieve stable friction coefficient and service life Long-term, pollution-reducing effect

Inactive Publication Date: 2008-05-21
杜亮
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

① Asbestos-based friction plates have serious heat loss and are not suitable for high-speed braking of vehicles, especially asbestos is a carcinogen that affects people’s health; ② Metal-based sintered friction plates are expensive, brittle, high friction temperature, and noisy , the wear of the pair is greater; ③Semi-metallic friction plates can only be used for disc brakes, not suitable for large-scale heavy-duty operations and transport vehicles, and have no wide application value
For this reason, the applicant applied for a ceramic brake pad and its processing method. The application number is 200510044055.3. It has been proved by tests that because the formula contains a certain amount of alumina, hollow steel balls, and stainless steel powder, the hardness is relatively high, and the dual brake disc has high temperature slippage. , scratch defects, affecting the service life of the dual brake disc

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] Example 1. Making disc brake pads

[0018] Bleaching beads, composite fiber, sepiolite, mica, wood fiber, hemp fiber, nitrile powder resin, graphite, urotropine, barite, light calcium, kaolin, clay, zinc oxide and flame retardant The mass percentage is: floating beads 15%, composite fiber 6%, sepiolite 3%, mica 10%, wood fiber 5%, hemp fiber 2%, resin 15%, graphite 6%, urotropine 2%, 11% of barite, 3% of light calcium, 4% of kaolin, 8% of pottery clay, and 2% of toothpaste-grade aluminum hydroxide are placed in a high-speed mixer and mixed together for stirring, and the mixture is evenly powdered and taken out. Put the powder into the mold block of the disc brake pad on the mold bed, put the mold bed on the molding bed, pressurize and heat at the same time, the pressure is increased to 16Mpa, and the temperature is increased to 150°C (the mold bed is equipped with an electric heating device), keep it for 20 minutes, and unload Press down to stop the temperature, take o...

example 2

[0019] Example 2. Making a disc friction plate

[0020] The floating beads, composite fiber, sepiolite, mica, wood fiber, hemp fiber, nitrile powder resin, graphite, urotropine, barite, light calcium, kaolin, pottery clay, and flame retardant It is: 10% of floating beads, 2% of composite fibers, 8% of sepiolite, 10% of mica, 2% of wood fibers, 3% of hemp fibers, 14% of nitrile powder resin, 8% of graphite, 1% of urotropine, 8% barite, 5% light calcium, 2% kaolin, 4% pottery clay, 3% toothpaste-grade aluminum hydroxide, put them in a high-speed mixer and mix them together, stir until they are evenly powdered, take them out, and pack the powder Put the mold bed into the mold block of the block-type friction plate on the mold bed, put the mold bed on the molding bed, pressurize and heat at the same time, increase the pressure to 180Mpa, and increase the temperature to 170°C (the mold bed is equipped with an electric heating device), maintain for 25 minutes, release the pressure a...

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PUM

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Abstract

The invention discloses a metalless ceramic braking piece, which comprises the following parts: 3-15% bleached ball, 1 -6% composite fiber, 1-9% fiber brucite, 1-15% mica, 5-10% wood fiber, 2-3% fibrilia, 10-30% butyronitrile powder resin, 1-15% graphite, 0.1-5% hexamethylenetetramine, 5-20% barite, 1-10% light calcium, 1-10% kaolin, 3-12% argil and 1-10% toothpaste-grade aluminum hydroxide.

Description

1. Technical field [0001] The invention relates to a friction material product used in friction braking devices of transportation machinery and engineering operation machinery, in particular to a metal-free ceramic brake pad and a processing method thereof. 2. Background technology [0002] At present, there are three main types of friction pads (brake pads) used for braking and transmission: asbestos-based friction pads, semi-metallic friction pads and metal-based sintered friction pads. These three types of friction pads still have certain defects in their applications. ① Asbestos-based friction plates have serious heat loss and are not suitable for high-speed braking of vehicles, especially asbestos is a carcinogen that affects people’s health; ② Metal-based sintered friction plates are expensive, brittle, high friction temperature, and noisy , The wear and tear on the pair is greater; ③Semi-metallic friction plates can only be used for disc brakes, not suitable for large...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/80C04B35/622B28B3/00
Inventor 杜亮
Owner 杜亮
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