Preparation method of copper-based friction material of brake pad

A technology for friction materials and brake pads, which is applied in the field of preparation of copper-based brake pad friction materials, can solve the problems of poor friction coefficient stability, poor wear resistance, lead pollution, etc., achieve high bonding strength, improve comprehensive performance, and prevent dust pollution Effect

Active Publication Date: 2018-11-30
滁州欧瑞斯机车部件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the affirmation of the above-mentioned prior art, the purpose of the present invention is to provide a preparation method of copper-based brake pad friction material, which solves the problem of poor stability of friction coefficient of existing brake pads, obvious thermal fading phenomenon, high noise, and poor wear resistance. and lead pollution

Method used

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  • Preparation method of copper-based friction material of brake pad
  • Preparation method of copper-based friction material of brake pad
  • Preparation method of copper-based friction material of brake pad

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] preparation figure 1 A motorcycle brake pad of a certain type shown includes the following steps:

[0037]Step 1, batching according to the proportion, 38 parts of the main component 250 mesh dendritic electrolytic copper powder, 2.2 parts of 40 micron tin powder, 22 parts of 300 mesh copper-tin composite powder, 1.5 parts of the auxiliary component 300 mesh reduced iron powder, 1 part of 300-mesh zinc powder, 15 parts of 300-micron scaly graphite powder for lubricating components, 2 parts of 200-mesh molybdenum disulfide powder, 1.5 parts of 80-mesh pore-forming agent calcium carbonate, 1.5 parts of friction component 100-mesh kaolin without corners , 2.5 parts of 100 mesh non-angular feldspar powder, 2.5 parts of 100 mesh non-angular zircon powder, 1.3 parts of 100 mesh non-angular high-purity mullite, 1.5 parts of 200 mesh vermiculite, 1.5 parts of 100 mesh aluminum silicate hollow ball share. ready to go.

[0038] Step 2, mixing and granulating, weighing the raw ...

Embodiment 2

[0047] preparation figure 2 A certain type of mountain bike brake pad shown includes the following steps:

[0048] Step 1, batching according to the proportion, 35 parts of the main component 300 mesh dendritic electrolytic copper powder, 3 parts of 30 micron tin powder, 25 parts of 300 mesh copper-tin composite powder, 3 parts of auxiliary component 250 mesh reduced iron powder, 1 part each of 400-mesh titanium powder and zinc powder, 12 parts of 300-micron scaly graphite powder for lubricating components, 2.5 parts of 200-mesh molybdenum disulfide powder, 2 parts of 100-mesh pore-forming agent calcium carbonate, and 100-mesh friction component without edges and corners 2.0 parts of kaolin, 3 parts of 100 mesh non-angular feldspar powder, 3 parts of 100 mesh non-angular zircon powder, 2.5 parts of 100 mesh non-angular high-purity mullite, 2 parts of 200 mesh vermiculite, 100 mesh silicic acid Aluminum hollow ball 2 parts. ready to go.

[0049] Step 2, mixing and granulati...

Embodiment 3

[0057] preparation image 3 The brake pads of a certain model of ATV shown include the following steps:

[0058] Step 1, batching according to the proportion, 37 parts of the main component 280 mesh dendritic electrolytic copper powder, 3 parts of 50 micron tin powder, 27 parts of 300 mesh copper-tin composite powder, 2 parts of auxiliary component 260 mesh reduced iron powder, 1.5 parts each of 300 mesh zinc powder and molybdenum powder, 11 parts of 330 micron scaly graphite powder for lubricating components, 2.5 parts of 200 mesh molybdenum disulfide powder, 1.5 parts of 100 mesh pore-forming agent calcium carbonate, and 100 mesh friction components without edges and corners 2.5 parts of kaolin, 2.5 parts of 100 mesh non-angular feldspar powder, 2.5 parts of 100 mesh non-angular zircon powder, 1.5 parts of 100 mesh non-angular high-purity mullite, 2.5 parts of 200 mesh vermiculite, 100 mesh alumina Hollow ball 1.5 parts; ready to place.

[0059] Step 2, mixing and granulat...

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Abstract

The invention relates to a preparation method of a copper-based friction material of a brake pad. The preparation method comprises the following steps of step 1, preparing of raw materials; step 2, mixing and granulating; step 3, cold pressing and forming; step 4, preparing of steel back; step 5, cold assembly and matching; step 6, placing and charging into a furnace; step 7, hot pressing and sintering; step 8, discharging out of the furnace, and inspecting. The copper-based friction material has the advantages that by adopting the coarser flaky graphite, the dust pollution is reduced; by adding a compound anti-abrasion component, the comprehensive property of the friction material is favorably improved; by adding a certain ratio of glycerol mixed solution, rolling by hands, stirring and granulating, the uniformity and stability of each component are guaranteed, the fluidity is good, the density distribution of the press billet is uniform, and the strength of the prepared press billetis high; by adopting the high-temperature pressurizing sintering parameters, the property requirement of the friction material is guaranteed, and the connecting strength with the steel back is also guaranteed; the technology process is simple, the cost is low, the production efficiency is high, the brake noise is avoided, the heat attenuation is little, the bonding strength between the steel backand a friction block is high, and the comprehensive property is good.

Description

technical field [0001] The invention relates to a light vehicle friction braking material, in particular to a preparation method of a copper-based brake pad friction material for motorcycles, bicycles, small engineering vehicles, special vehicles and special purposes. Background technique [0002] Modern friction materials are key materials for friction brakes and clutches in aviation, vehicles, machinery, etc. The role of brake and clutch friction material sheets is braking and transmission. They are the counterparts that promote two relative motions by means of friction, and eliminate relative motion in a very short time. With the development of science and technology, the power, speed and load of the machine are increasing day by day, and the working conditions are becoming more and more severe. Therefore, higher requirements are put forward for the comprehensive performance of friction materials, that is, usually in addition to having an appropriate friction coefficient,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D69/02C09K3/14
CPCF16D69/027F16D2200/0082
Inventor 欧阳方明
Owner 滁州欧瑞斯机车部件有限公司
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