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Friction material and preparation method thereof

A technology of friction material and mesh cloth, which is applied in the field of materials, can solve the problems of material waste, achieve the effects of protecting the environment, not easy to delaminate, and increasing the shear strength

Active Publication Date: 2021-06-25
TALFRI BRAKES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, delamination will occur in the production process of the existing laminated friction materials; and because the laminated cloth layer must be consistent with the product size or machined after being produced into a large plate, no matter which method will cause a lot of material waste

Method used

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  • Friction material and preparation method thereof
  • Friction material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] This embodiment provides a method of preparing a friction material, comprising the steps of:

[0034] (1) According to the weight of the copper wire, the weight of the short cotton is 20%, and the weight of glass is 65% compared to 5% of the viscosity weight, and prepared into a core yarn;

[0035] (2) The woven woven fabric is made from the woven machine to obtain a net gauze; wherein the wire density contains 15 wires per 10 cm; the latitude density is 15 wires within 10 cm;

[0036] (3) Immerse the mesh cloth into a phenol resin having a solid content of 85%, dried under 80 ° C for 5 h, and the mesh cloth increases weight, and the resin mesh is obtained.

[0037] (4) Cut the resin grid to the size of about 20 mmX50 mm and placed in the mold, and pressulate it under 120 ° C, 12 MPa, and the exhaust gas is 3 times, the total pressure is 10 min, and the semi-finished product;

[0038] (5) The semi-finished product continues to curing 1 h at 120 ° C, and then take out the in...

Embodiment 2

[0040] This embodiment provides a method of preparing a friction material, comprising the steps of:

[0041] (1) According to the weight of the copper wire, the weight of the short cotton line accounts for 24%, and the weight of the glass is 60% and the viscose weight is 6%, prepared into the core yarn;

[0042] (2) The woven woven fabric is obtained by a knitting machine to obtain a grid (therein, wherein the linear density is 30-wire 30; the weft density is 30 wires per 10 cm;

[0043] (3) Immerse the mesh cloth into a solid content of 85% epoxy resin, drying under 110 ° C for 2 h after impregnation, and the weight of the mesh is increased by 80%, and the resin mesh is obtained.

[0044] (4) Cut the resin grid to a size of about 25 mm × 150 mm and placed in the mold, and press the pressure under 170 ° C, 23 MPa, and the exhaust gas is 10 times, the total pressure is 12 minutes, and the half finished product ;

[0045] (5) The semi-finished product continues to curing 5 h at 180 ...

Embodiment 3

[0047] This embodiment provides a method of preparing a friction material, comprising the steps of:

[0048] (1) According to the weight of the copper wire, the weight of the short cotton line accounts for 15%, and the glass fiber is 73% and the viscose weight is 4%, and the brain core is prepared;

[0049] (2) The woven woven fabric is made from the woven machine to obtain a net grid; wherein the lack density is 23 cm, and the latitude density is 23 cm.

[0050] (3) Immerse the mesh cloth into a solid content of 60% epoxy resin, drying under 110 ° C for 3 h after impregnation, and the mesh cloth weight is 60%, and the resin mesh is obtained.

[0051] (4) Charting the resin grid to a size of about 40 mm × 40 mm and placed in a mold, under pressure under 150 ° C, 18 MPa, and the exhaust gas is 15 times, the total pressure is 11 min, and the half finished product ;

[0052] (5) The semi-finished product continues to curing 12 h at 155 ° C, and then take out the inside and outside of ...

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Abstract

The invention relates to a friction material and a preparation method thereof. The method comprises the following steps: bonding metal wires, short cotton threads and reinforced fibers to prepare covering yarns; weaving the covering yarns to obtain gridding cloth; impregnating the gridding cloth in resin to be mixed and dried, and thus obtaining resin gridding cloth after drying is completed; cutting up the resin gridding cloth and pressing in a mold, and thus obtaining a semi-finished product; and continuously curing and processing the semi-finished product to obtain a friction material finished product. According to the production method, the gridding cloth is used for impregnating the resin, the gridding cloth is easy to impregnate and relatively uniform in impregnation, the gridding cloth is cut into cloth pieces by a cloth cutting machine, and the cloth pieces are staggered in the material to form a compact tissue structure after hot press molding, so that the shearing strength of the material is increased, and the material is not easy to layer; and meanwhile, the gridding cloth is cut into cloth pieces and then is subjected to hot press molding, so that materials are not wasted, the generation of garbage is greatly reduced, and the environment is protected.

Description

Technical field [0001] The present invention belongs to the field of material, and more particularly to a friction material and a method of preparation thereof. Background technique [0002] Friction materials are key parts for various types of mechanical brakes and drives, can't be lacking in various machines such as automobiles, motorcycles, ships, aircraft, construction machinery, transportation machinery, chemical machinery, mine machinery, oil machinery, construction machinery. The friction material is a key security accessory in its application, although the cost proportion of the host is small, but its functional status is important. Excellent performance of friction materials in addition to the actual application requirements in the application, as well as materials are easy to produce, do not produce waste, and reduce production costs to facilitate the popularity of friction materials. [0003] The existing lamination material will occur during production of the producti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/14F16D69/02
CPCC09K3/14F16D69/028F16D2200/0004F16D2200/0034F16D2200/0056F16D2200/006F16D2200/0086
Inventor 曾立宏杨正茂周继煜
Owner TALFRI BRAKES
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