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Brake caliper heat shield and preparation method thereof

A technology of a brake caliper and a heat shield is applied in the field of a brake caliper heat shield and its preparation, which can solve the problem that the heat resistance temperature and compressive strength of the heat shield are low and cannot meet the requirements of the brake caliper heat shield. Heat-resistant temperature and compressive strength requirements, etc., to achieve the effect of high compressive strength, low thermal expansion, and good weather resistance

Active Publication Date: 2016-01-13
SHANGHAI REINPHEN NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The heat-resistant temperature and compressive strength of the heat-shielding plate obtained by this method are low, which cannot meet the heat-resistant temperature and compressive strength requirements of the heat-shielding plate of the brake caliper.

Method used

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  • Brake caliper heat shield and preparation method thereof
  • Brake caliper heat shield and preparation method thereof
  • Brake caliper heat shield and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1. Preparation of raw materials:

[0028] components

weight percentage

Epoxy modified phenolic resin

10％

Iron oxide yellow

25％

Barite

30％

glass fiber

35％

[0029] 2. Preparation:

[0030] Add the above-mentioned base materials, binders and heat insulation performance improvers to the high-speed rake mixer in proportion and mix them. The mixing time is controlled to be 2 minutes, and then the reinforcing materials are added in proportion to the high-speed rake mixer. Mix in the middle, control the mixing time to 2min, then spray alcohol, and then dry in the dryer. Place the obtained mixed material in a molding mold, control the molding temperature to 120°C, and the molding pressure to 300kg / cm 2 Press for 300s. Then, the formed heat shield is sintered at high temperature, the sintering temperature is controlled at 120° C., and the sintering time is 12 hours. After cooling the sintered heat shield to roo...

Embodiment 2

[0035] 1. Preparation of raw materials:

[0036] components

weight percentage

Cashew nut shell oil modified phenolic resin

15％

Mica

30％

Feldspar powder

15％

Aramid fiber

40％

[0037] 2. Preparation:

[0038] Add the above-mentioned base materials, binders and heat insulation performance improvers to the high-speed rake mixer in proportion to mix, control the mixing time to 3min, and then add the reinforcing materials to the high-speed rake mixer in proportion Mix in the middle, control the mixing time to 1min, then spray alcohol, and then dry in the dryer. Place the obtained mixed material in a molding mold, control the molding temperature to 140°C, and the molding pressure to 450kg / cm 2 Press for 250s. Then the formed heat shield is sintered at high temperature, the sintering temperature is controlled to be 100°C, and the sintering time is 20h. After cooling the sintered heat shield to room temperature, machin...

Embodiment 3

[0043] 1. Preparation of raw materials:

[0044] components

weight percentage

Silicone modified phenolic resin

12％

[0045] Iron Oxide Red

27％

Clay

23％

glass fiber

38％

[0046] 2. Preparation:

[0047] Add the above-mentioned base materials, binders and heat insulation performance improvers to the high-speed rake mixer in proportion to mix, control the mixing time to 4min, and then add the reinforcing materials to the high-speed rake mixer in proportion Mix in the middle, control the mixing time to 1min, then spray alcohol, and then dry in the dryer. Put the obtained mixed material in a molding mold, control the molding temperature to 135°C, and the molding pressure to 350kg / cm 2 Press for 350s. Then sinter the formed heat insulation board at high temperature, control the sintering temperature to 140° C., and the sintering time to 30 h. After cooling the sintered heat shield to room temperature, mac...

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Abstract

The invention relates to a brake clamp heat insulation plate and a preparation method thereof. The brake clamp heat insulation plate comprises the following components in percentage by weight: 15-30% of a base material, 30-40% of a reinforcing material, 10-20% of a bonder and 20-30% of a heat-insulating property modifying agent. The prepared method comprises the following steps: mixing the base material, the bonder and the heat-insulating property modifying agent, adding the reinforcing material, mixing, spraying alcohol, and drying in a dryer to obtain a mixed material for later use; forming the mixed material in a forming module to obtain a formed plate, sintering the formed plate, and then cooling to obtain the brake clamp heat insulation plate. Compared with the prior art, the brake clamp heat insulation plate prepared by the invention has the advantages ultra high strength, high temperature resistance, high pressure resistance and lower thermal conductivity; the long-term use temperature can reach higher than 250 DEG C; the compressive strength can reach higher than 230 MPa; the brake clamp heat insulation plate is excellent in oil resistance, corrosion resistance and weather resistance, can adapt to the temperature of -50 to 50 DEG C, can avoid negative phenomena such as layering and chipping during use, is simple in production processing process, environmental-protection and free of pollution, and can be formed in one step.

Description

technical field [0001] The invention relates to a composite material and a preparation method thereof, in particular to a brake caliper heat shield and a preparation method thereof. Background technique [0002] The heat insulation plate of the brake caliper of the motor car is a hydraulic component that uses the axial compression of the brake to generate friction to achieve braking. The failure of the ring and the increase of oil temperature or air temperature in the brake cylinder affect the compression ratio and thus affect the braking performance. [0003] In rail transit, braking is an important guarantee for driving safety. Due to the huge braking energy of bullet trains, the frictional temperature rises very high, and the heat shield has to be repeatedly pressed. Therefore, the heat shield of the brake caliper not only requires low thermal conductivity and high compressive strength, but also low thermal expansion to ensure that it will not crack or delaminate and fai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/12C04B14/04C04B14/42C04B14/06
Inventor 张定权
Owner SHANGHAI REINPHEN NEW MATERIAL TECH CO LTD
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