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Method and application of using basalt microfibers for preparing brake pads

A technology of ultra-fine fiber and brake pads, which is applied in the field of auto parts, can solve the problems of unsuccessful production, achieve moderate price, improve wear resistance and improve high temperature performance

Active Publication Date: 2018-09-21
HUANGSHI JINZHAOYANG POWDER MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the 1970s, scientists in the United States and Germany have conducted a lot of research on the preparation of continuous basalt fibers, but failed to achieve commercialization.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] ① First, add 8 kg of phenolic resin, 5 kg of steel fiber, 2 kg of carbon fiber, and 15 kg of basalt superfine fiber into the mixer according to the amount, run for 2 minutes, stop for 5 minutes, run again for 2 minutes, and stop for 5 minutes;

[0025] Then 3 kg of flake graphite, 3 kg of artificial graphite particles, 3 kg of chromite powder, dolomite

[0026] 5 kg, 3 kg of fluorite powder, 2 kg of nitrile rubber powder, and 5 kg of silica fume cotton were respectively poured into the mixer in sequence, and the mixer was operated for 5 minutes, stopped for 5 minutes, and then operated for 3 minutes again to obtain a mixture;

[0027] ③Put the obtained mixture in the brake pad mold for hot pressing, the hot pressing temperature is 150 degrees, the holding pressure is 15MPa, the hot pressing time is 5 minutes, and the first time of deflation: after holding the pressure for 20 seconds, release the air for 5 seconds; The second deflation time: after holding the pressure ...

Embodiment 2

[0034] ① First, add 16kg of phenolic resin, 15kg of steel fiber, 5kg of carbon fiber, and 45kg of basalt superfine fiber into the mixer according to the amount, run for 2 minutes, stop for 5 minutes, run again for 2 minutes, and stop for 5 minutes;

[0035] Then flake graphite 8kg, artificial graphite particles 12kg, chromite powder 10kg, dolomite

[0036] Pour 8kg powder, 8kg fluorite powder, 5kg nitrile rubber powder, and 10kg silica fume cotton into the mixer in turn, and the mixer runs for 5 minutes, stops for 5 minutes, and then runs for 3 minutes again to obtain a mixture;

[0037] ③Put the obtained mixture in the brake pad mold for hot pressing, the hot pressing temperature is 160 degrees, the holding pressure is 15 MPa, the hot pressing time is 5 minutes, and the first deflation time: after holding the pressure for 20 seconds, deflate for 5 seconds; The second deflation time: after holding the pressure for 15 seconds, deflate for 15 seconds; the third deflation time:...

Embodiment 3

[0044] ① First, add 12kg of phenolic resin, 8kg of steel fiber, 3.5kg of carbon fiber, and 35kg of basalt superfine fiber into the mixer according to the amount, run for 2 minutes, stop for 5 minutes, run again for 2 minutes, and stop for 5 minutes;

[0045] Then flake graphite 5kg, artificial graphite particles 8kg, chromite powder 7kg, dolomite powder 6.5kg,

[0046] Pour 5.5 kg of fluorite powder, 3.5 kg of nitrile rubber powder, and 7.5 kg of silica fume cotton into the mixer respectively, and the mixer runs for 5 minutes, stops for 5 minutes, and then runs for 3 minutes again to obtain a mixture;

[0047] The resulting mixture is placed in a brake pad mold and hot-pressed at a temperature of 155 degrees, and the holding pressure is

[0048] 15MPa, hot pressing time is 5 minutes, the first deflation time: after holding pressure for 20 seconds, deflate for 5 seconds; the second deflation time: after holding pressure for 15 seconds, deflate for 15 seconds; the third defl...

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PUM

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Abstract

The invention discloses a method for preparing a brake pad from basalt superfine fibers and application of the basalt superfine fibers in preparation of the brake pad. The method comprises the following steps that 1, 8-16 parts by weight of phenolic resin, 5-15 parts by weight of steel fibers, 2-5 parts by weight of carbon fibers and 15-45 parts by weight of basalt superfine fibers are added into a mixer to be mixed; 2, 3-8 parts by weight of crystalline flake graphite, 3-12 parts by weight of delanium graphite particles, 3-10 parts by weight of chromite powder, 5-8 parts by weight of dolomite powder, 3-8 parts by weight of fluorite powder, 2-5 parts by weight of butadiene-acrylonitrile rubber powder and 5-10 parts of by weight of wollastonite are sequentially poured into the mixer to be mixed; 3, the obtained mixture is placed in a brake pad mold for hot pressing, and mold stripping is carried out; 4, the brake pad obtained after mold stripping is subjected to heat treatment; 5, the brake pad obtained after discharge is subjected to machining treatment, label printing and packaging, and the brake pad is obtained. The shock strength of the prepared brake pad can reach 5.5 dj.cm<3> or above, and the high temperature fading rate is smaller than 15%; the experiment is completed according to GB6763-2008, the total wear rate is smaller than 0.23.

Description

technical field [0001] The invention relates to an automobile part, in particular to a method and application of using basalt superfine fibers for preparing brake pads. Background technique [0002] Brake pads are the most critical safety parts in the braking system of a car. Brake pads play a decisive role in whether the braking effect is good or not. Brake pads are generally composed of steel plates, bonded heat insulation layers and friction blocks. The heat insulation layer is made of Composed of materials that do not conduct heat, the purpose is to insulate. The friction block is composed of friction material and adhesive, which is squeezed on the brake disc or brake drum to generate friction during braking, so as to achieve the purpose of vehicle deceleration and braking. Due to friction, the friction block will be gradually worn, generally speaking, the lower the cost of the brake pads, the faster the wear. After the friction material is used up, the brake pads shou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L61/06C08L9/02C08K13/04C08K7/06C08K7/10C08K3/04C08K3/34F16D65/02C09K3/14
CPCC08L61/06C09K3/149F16D65/02F16D2200/0086C08L9/02C08K13/04C08K7/06C08K7/10C08K3/04C08K3/34
Inventor 袁文来
Owner HUANGSHI JINZHAOYANG POWDER MATERIALS
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