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Automobile ceramic brake and preparation method thereof

A technology of brake pads and ceramics, applied in the field of ceramic brake pads, can solve problems such as weak toughness, impact damage, uneven mixing of adhesives, etc., to achieve improved wear resistance, high strength heat resistance, and enhanced friction coefficient and toughness effects

Inactive Publication Date: 2019-05-07
枣阳神虎摩擦材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides an automotive ceramic brake pad and a preparation method thereof, which solves the problem that in the existing process of making ceramic brake pads, the binder and the mixture are added together for mixing. , it is easy to cause uneven mixing of the adhesive inside the brake pad, and the friction coefficient of the existing ceramic brake pad is not stable enough, the toughness is not strong, and it is easy to be damaged by the impact force

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of automobile ceramic brake pad, its raw material comprises by weight: 26 parts of ceramic fiber, 3 parts of high carbon graphite, 14 parts of fluoroapatite, 7 parts of antimony sulfide, 3 parts of chromite, 15 parts of inorganic binder, copper 13 parts fiber and 5 parts barite.

[0024] Step 1: Ingredients: Accurately weigh a certain amount of ceramic fiber, high-carbon graphite, fluoroapatite, antimony sulfide, chromite, copper fiber and barite, and crush them separately, and filter them through different sizes Filter through a sieve, and place the above-mentioned material after filtering in a mixer, and then weigh a quantitative amount of inorganic binder;

[0025] Step 2: Mixing: Start the mixer, place the inorganic binder at the discharge inlet of the mixer, control the speed of the inorganic binder discharge, and make the mixer work while the inorganic binder Put it into the mixer completely in 1 minute, and then stir the mixture for 3 minutes;

[0026] S...

Embodiment 2

[0030] A kind of automobile ceramic brake pad, its raw material comprises by weight: 27 parts of ceramic fiber, 3.5 parts of high-carbon graphite, 15 parts of fluoroapatite, 8 parts of antimony sulfide, 4 parts of chromite, 16 parts of inorganic binder, 15 parts of copper fiber and 6 parts of barite.

[0031] Step 1: Ingredients: Accurately weigh a certain amount of ceramic fiber, high-carbon graphite, fluoroapatite, antimony sulfide, chromite, copper fiber and barite, and crush them separately, and filter them through different sizes Filter through a sieve, and place the above-mentioned material after filtering in a mixer, and then weigh a quantitative amount of inorganic binder;

[0032] Step 2: Mixing: Start the mixer, place the inorganic binder at the discharge inlet of the mixer, control the speed of the inorganic binder discharge, and make the mixer work while the inorganic binder Put it into the mixer completely in 1.5 minutes, and then stir the mixture for 3.5 minutes...

Embodiment 3

[0037] An automotive ceramic brake pad, characterized in that: its raw materials include by weight: 28 parts of ceramic fiber, 4 parts of high-carbon graphite, 20 parts of fluoroapatite, 9 parts of antimony sulfide, 5 parts of chromite, inorganic adhesive 18 parts of agent, 18 parts of copper fiber and 8 parts of barite.

[0038] Step 1: Ingredients: Accurately weigh a certain amount of ceramic fiber, high-carbon graphite, fluoroapatite, antimony sulfide, chromite, copper fiber and barite, and crush them separately, and filter them through different sizes Filter through a sieve, and place the above-mentioned material after filtering in a mixer, and then weigh a quantitative amount of inorganic binder;

[0039] Step 2: Mixing: Start the mixer, place the inorganic binder at the discharge inlet of the mixer, control the speed of the inorganic binder discharge, and make the mixer work while the inorganic binder Put it into the mixer completely in 2 minutes, and stir the mixture f...

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PUM

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Abstract

The invention discloses an automobile ceramic brake and a preparation method thereof. The automobile ceramic brake comprises the following raw materials in parts by weight: 26-28 parts of ceramic fibers, 3-4 parts of high-carbon graphite, 14-20 parts of fluorapatite, 7-9 parts of antimony sulfide, 3-5 parts of chromite, 15-18 parts of an inorganic adhesive, 13-18 parts of copper fibers and 5-8 parts of barite. The preparation method comprises the following steps: accurately and quantitatively weighing ceramic fibers, high-carbon graphite, fluorapatite, antimony sulfide, chromite, copper fibersand barite; respectively crushing the weighed raw materials; and respectively filtering the crushed raw materials with filter sieves of difference sizes. The invention relates to the technical fieldof ceramic brakes and particularly provides the automobile ceramic brake and the preparation method thereof. The adopted inorganic adhesive is a high-temperature-resistant inorganic nano composite adhesive prepared by polycondensation of an inorganic nano-material, and has high heat resistance, and the adhesiveness thereof cannot be adversely affected by the temperature. Besides, since ceramic fibers, high-carbon graphite and fluorapatite are adopted, the friction coefficient and the toughness of the brake can be enhanced, and the wear resistance of the brake is greatly improved.

Description

technical field [0001] The invention relates to the technical field of ceramic brake pads, in particular to an automotive ceramic brake pad and a preparation method thereof. Background technique [0002] Ceramic brake pads are a type of brake pads, including mineral fibers, aramid fibers, and ceramic fibers (because steel fibers will rust, generate noise and dust, so they cannot meet the requirements of ceramic-type formulas), and are lighter in color than other brake pads And more expensive, ceramic-type brake pads are cleaner and quieter, and provide superior braking performance without wearing out their counterparts. Many consumers mistakenly think that ceramics are made of ceramics at first. In fact, ceramic brake pads are based on the principle of cermets rather than non-metallic ceramics. When the brake pads are braked at high speed and vigorously, high temperature will be generated on the friction surface. According to the measurement, it can reach 800 ~900 degrees, ...

Claims

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Application Information

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IPC IPC(8): F16D69/02C04B28/00C04B111/00
Inventor 李冬生徐志丹李军
Owner 枣阳神虎摩擦材料有限责任公司
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