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Preparation method of carbon fiber frictional particles

A technology of carbon fiber and chopped carbon fiber, which is applied in the field of preparation of carbon fiber friction particles, can solve problems such as difficulty in exerting excellent characteristics, achieve good infiltration, simple process, and reduce wear rate

Inactive Publication Date: 2015-03-25
SICHUAN CHUANGYUE CARBON MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if carbon fiber is not used effectively, it is difficult to exert its excellent characteristics in friction materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] In this embodiment, a method for preparing carbon fiber friction particles includes the following raw materials in parts by weight:

[0030] 90 parts of water, 0.3 part of methyl cellulose, 5 parts of carbon fiber treated with phenolic resin emulsion sizing, 5 parts of 100-mesh graphite powder, 5 parts of 100-mesh phenolic resin;

[0031] Concrete preparation method: comprise the following steps:

[0032] (1) Take 90 parts of water and 0.3 part of methylcellulose, put into a kneading pot with a discharge screw and fully dissolve to obtain a dissolving solution of methylcellulose;

[0033] (2) Then, 5 parts of carbon fiber, 5 parts of 100-mesh graphite powder, and 5 parts of 100-mesh phenolic resin treated with phenolic resin emulsion sizing are also poured into the kneading pot with a discharge screw in turn, stirred and dispersed uniform slurry formation;

[0034] (3) The slurry is extruded through the discharge screw of the kneading pot, dropped on the steel belt co...

Embodiment 2

[0040] In this embodiment, a method for preparing carbon fiber friction particles includes the following raw materials in parts by weight:

[0041] 100 parts of water, 2 parts of methyl cellulose, 10 parts of carbon fiber sizing treated with phenolic resin emulsion, 20 parts of 200-mesh graphite powder, 10 parts of 200-mesh phenolic resin;

[0042] Concrete preparation method: comprise the following steps:

[0043] (1) Take 100 parts of water and 2 parts of methylcellulose, put into a kneading pot with a discharge screw and fully dissolve to obtain a dissolving solution of methylcellulose;

[0044] (2) Then, 10 parts of carbon fiber, 20 parts of 200-mesh graphite powder, and 10 parts of 200-mesh phenolic resin that have been treated with phenolic resin emulsion sizing are also poured into the kneading pot with a discharge screw in turn, stirred and dispersed uniform slurry formation;

[0045] (3) Extrude the slurry through the discharge screw of the kneading pot, drop it on th...

Embodiment 3

[0051] In this embodiment, a method for preparing carbon fiber friction particles includes the following raw materials in parts by weight:

[0052] 95 parts of water, 1 part of methyl cellulose, 8 parts of carbon fiber sizing treated with phenolic resin emulsion, 15 parts of 150-mesh graphite powder, and 8 parts of 150-mesh phenolic resin.

[0053] Concrete preparation method: comprise the following steps:

[0054] (1) Take 95 parts of water and 1 part of methyl cellulose, put them into a kneading pot with a discharge screw and fully dissolve to obtain a dissolving solution of methyl cellulose;

[0055] (2) Then, 8 parts of carbon fiber, 15 parts of 150-mesh graphite powder, and 8 parts of 150-mesh phenolic resin that have been treated with phenolic resin emulsion sizing are also poured into the kneading pot with a discharge screw in turn, stirred and dispersed uniform slurry formation;

[0056] (3) Extrude the slurry through the discharge screw of the kneading pot, drop it ...

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Abstract

The invention belongs to the technical field of frictional materials and particularly relates to a preparation method of carbon fiber frictional particles. The preparation method comprises the following steps: by adopting water, a dispersant, chopped carbon fibers, micro inorganic powder and resin powder as raw materials, dissolving the dispersant, pouring the chopped carbon fibers, micro inorganic powder and resin powder into a mixing and kneading pot with a discharge screw, stirring and uniformly dispersing to form slurry; extruding and spreading out the slurry into a sheet, heating and drying, thereby obtaining a half-dry frictional material; mixing the half-drying frictional material into a sheet; continuously drying to obtain a sheet material; rolling and pressing the sheet material into mould plastic particles; and screening, grading and curing, thereby obtaining the carbon fiber frictional particles. The preparation method can be used for lowering the wear rate of the frictional material to a great extent, obtaining a porous high-damping composite material by utilizing fluffy structures of the carbon fibers and obtaining the frictional material with low abrasion, low hardness, no noises and low heat recession; besides, the preparation method is simple in process and capable of realizing dispersing the carbon fibers and soaking the resin very well.

Description

technical field [0001] The invention belongs to the technical field of friction materials, and in particular relates to a preparation method of carbon fiber friction particles used in braking equipment or components. Background technique [0002] The main function of the friction material used in braking is to convert kinetic energy into other forms of energy, thereby gradually reducing the relative motion speed between the brake pad and the paired parts it fits, until the motion stops, and the purpose of braking is achieved. In order for the brake pair to complete the above braking process, the ideal friction material should have the following properties: sufficient and stable friction coefficient; high thermal conductivity and heat resistance; high wear resistance; good resistance to oil, humidity and corrosion; Sufficient strength; there is little or no noise when it is in frictional contact with the parts to be bonded; no bonding or occlusion occurs during work; the sour...

Claims

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Application Information

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IPC IPC(8): C09K3/14
Inventor 张福强
Owner SICHUAN CHUANGYUE CARBON MATERIAL
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