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Friction lining not containing copper and preparation method thereof

A friction lining and friction powder technology, applied in friction linings, chemical instruments and methods, mechanical equipment, etc., can solve the problems of short service life, high braking noise, environmental pollution, etc., and achieve increased wear resistance and stable Friction coefficient, noise reduction effect

Inactive Publication Date: 2020-06-30
HENGSHUI ZHONGCHENG FRICTION MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional asbestos friction material products have instantaneous high temperature due to high-speed braking, which makes the surface prone to severe thermal recession, high braking noise, short service life and strong carcinogenicity, which causes great pollution to the environment and has not adapted to the development of the times. Requirements, gradually replaced by semi-metallic and asbestos-free organic friction materials, new high-temperature resistant non-asbestos friction materials, such as the process of replacing asbestos with glass fibers, mineral fibers, and metal fibers has developed rapidly

Method used

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  • Friction lining not containing copper and preparation method thereof
  • Friction lining not containing copper and preparation method thereof
  • Friction lining not containing copper and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 1. Taking material

[0036] Take the following raw materials according to mass: 2 parts of aramid fibers, 15 parts of precipitated barium sulfate, 4 parts of nitrile rubber powder, 5 parts of cellulose fibers, and 15 parts of mineral fibers to obtain mixture A;

[0037] Mixture B was obtained by weighing 20 parts of potassium titanate, 4 parts of mica, 7 parts of resin, 5 parts of friction powder, 5 parts of antimony trisulfide, 15 parts of synthetic graphite, and 3 parts of fine rubber powder.

[0038] 2. Mixing

[0039] Put the mixture A into the plow-rake mixer with a reamer, plow for 15 minutes, and the reamer runs for 10 minutes; then put in the mixture B to mix it with the mixture A, plow for 30 minutes, and the reamer Run for 25 minutes to obtain a mixture; wherein, the coulter rotates at 400 rpm, the reamer at 1450 rpm, and the mixing temperature is not greater than 60°C

[0040] 3. Hot pressing

[0041] Install the predetermined type of mold on the 200T hydr...

Embodiment 2

[0056] 1. Taking material

[0057] Take the following raw materials according to mass: 4 parts of aramid fibers, 10 parts of precipitated barium sulfate, 5 parts of nitrile rubber powder, 5 parts of cellulose fibers, and 15 parts of mineral fibers to obtain mixture A;

[0058] Mixture B was obtained by weighing 20 parts of potassium titanate, 8 parts of mica, 10 parts of resin, 5 parts of friction powder, 5 parts of antimony trisulfide, 10 parts of synthetic graphite, and 3 parts of fine rubber powder.

[0059] 2. Mixing

[0060] Put the mixture A into the plow-rake mixer with a reamer, plow for 15 minutes, and the reamer runs for 10 minutes; then put in the mixture B to mix it with the mixture A, plow for 30 minutes, and the reamer Run for 25 minutes to obtain a mixture; wherein, the coulter rotates at 400 rpm, the reamer at 1450 rpm, and the mixing temperature is not greater than 60°C

[0061] 3. Hot pressing

[0062] Install the predetermined type of mold on the 200T hyd...

Embodiment 3

[0077] 1. Taking material

[0078] Take the following raw materials according to mass: 4 parts of aramid fibers, 20 parts of precipitated barium sulfate, 3 parts of nitrile rubber powder, 4 parts of cellulose fibers, and 10 parts of mineral fibers to obtain mixture A;

[0079] Mixture B was obtained by weighing 25 parts of potassium titanate, 10 parts of mica, 9 parts of resin, 6 parts of friction powder, 4 parts of antimony trisulfide, 15 parts of synthetic graphite, and 4 parts of fine rubber powder.

[0080] 2. Mixing

[0081] Put the mixture A into the plow-rake mixer with a reamer, plow for 15 minutes, and the reamer runs for 10 minutes; then put in the mixture B to mix it with the mixture A, plow for 30 minutes, and the reamer Run for 25 minutes to obtain a mixture; wherein, the coulter rotates at 400 rpm, the reamer at 1450 rpm, and the mixing temperature is not greater than 60°C

[0082] 3. Hot pressing

[0083] Install the predetermined type of mold on the 200T hyd...

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Abstract

The invention belongs to the technical field of friction materials and particularly relates to a friction lining not containing copper and a preparation method thereof. The friction lining comprises 9to 15 parts of a butyronitrile modified resin adhesive, 4 to 9 parts of a reinforcing agent comprising aramid fiber and / or cellulosic fiber, 28-53 parts of a friction increasing agent comprising potassium titanate, friction powder, mineral fiber and / or fine rubber powder, 11-30 parts of a lubricant comprising synthetic graphite, mica and / or antimony trisulfide, and 10 to 20 parts of a filler comprising precipitated barium sulphate or feldspar powder. The friction lining is stable in friction performance, resists heat fade, is high in structural strength, resists wear, does not contain copperor other metal compositions, and is green, environmentally-friendly and free of pollution. The preparation method has the characteristics of being simple in technological process, convenient in raw material selection and low in preparation cost and facilitating production and processing.

Description

technical field [0001] The invention belongs to the technical field of friction materials, and in particular relates to a copper-free friction lining and a preparation method thereof. Background technique [0002] Friction linings are widely used in the brakes and clutches of automobiles, trains, airplanes and other vehicles, and are a component material that relies on friction to perform braking and transmission functions. Friction lining is a polymer ternary composite material, which is a physical and chemical compound. It is composed of three major categories: polymer binder (resin and rubber), reinforcing fiber, friction performance modifier and other compounding agents. , a product made through a series of production and processing. It has a good coefficient of friction and wear resistance, as well as certain heat resistance and mechanical strength. [0003] The advancement of science and technology has promoted the rapid development of the automobile industry, and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D69/02C09K3/14
CPCC09K3/149F16D69/023F16D2069/002F16D2200/0052F16D2200/006F16D2250/0023
Inventor 刘兰云穆崇李何春王建刘彬
Owner HENGSHUI ZHONGCHENG FRICTION MATERIAL
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