Friction material without asbestos layer and manufacturing method

A technology of friction materials and manufacturing methods, applied in chemical instruments and methods, textiles and papermaking, and other chemical processes, can solve problems such as poor molding and poor tooth strength, achieve uniform distribution, reduce production costs, and integrate as a whole good sex effect

Inactive Publication Date: 2013-10-09
TALFRI BRAKES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the disadvantages that the existing "pressed friction material" is not well formed after mechanical processing, especially the strength of the teeth after mechanical gear shaping is poor, and cannot meet the requirements of user

Method used

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  • Friction material without asbestos layer and manufacturing method
  • Friction material without asbestos layer and manufacturing method
  • Friction material without asbestos layer and manufacturing method

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Experimental program
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Effect test

Embodiment Construction

[0024] Use liquid phenolic resin (or modified phenolic resin) as the adhesive. Friction modifiers may or may not be used. Reinforcement materials are: glass fiber, aramid fiber, copper wire and friction spinning. Friction spinning is made by blending viscose fiber, glass fiber and acrylic fiber in a ratio of 1:1:1. Its formula is as follows:

[0025]

[0026] The manufacturing method is as follows:

[0027] The glass fiber, the aramid fiber, the 0.2mm copper wire and the friction spinning yarn are plied according to the above ratio, and the plied twist is 9-10 / 10CM.

[0028] Then the twisted on-line knitting machine is woven into a grid cloth with a width of 900 mm, a warp density of 38 / CM, and a weft density of 30 / CM.

[0029] Put the grid cloth into a dipping tank filled with liquid phenolic resin to fully impregnate it, remove it and drip it dry, bake it in an oven at 100°C for 1 hour, and then take it out.

[0030] Then cut according to the size of the desired fric...

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PUM

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Abstract

The invention relates to a friction material without an asbestos layer and a manufacturing method thereof. The friction material without the asbestos layer consists of an adhesive, reinforcing fibers and a friction performance regulating agent. The reinforcing fibers comprise glass fibers, aramid fibers, copper wires and friction spinning yarns. The manufacturing method of the friction material without the asbestos layer comprises the steps: acquiring the friction spinning yarns; twisting together for two times to obtain twisted threads; weaving the twisted threads to form a piece of mesh cloth; dipping the mesh cloth with the adhesive, and baking; clipping; carrying out press vulcanization after overlapping; and grinding the surface to obtain the finished product. The production cost of the friction material without the asbestos layer is low, the base material has better overall associativity, the metal wire distribution is more uniform, and the heat conductivity and the heat dissipation of the friction material are faster and better. The precision of the manufactured friction element size is higher than that of a friction element manufactured by a conventional method. Phenomena of blistering, swelling, stratifying and warping that often appear during the production of laminated products are completely avoided. The manufactured finished product has higher curing degree and more stable friction coefficient.

Description

technical field [0001] The present invention relates to friction materials for brakes and clutches widely used in industries such as mines, oil production, ships, automobiles, metallurgy, and papermaking and its manufacturing technology, especially friction materials for brakes and clutches for high-power braking torques and their manufacturing techniques. Manufacturing Technology. Background technique [0002] Friction material is a functional accessory used in many sports machinery and equipment to play the role of transmission, braking, deceleration, steering, parking, etc. It can be said that since the beginning of mechanical movement, human beings have the requirement of braking, wooden blocks, Cowhide, rubber, etc. have all been used as braking materials. Before the 1970s and 1980s, asbestos friction materials had been widely used by humans as a traditional product. After that, it was rumored that asbestos could cause lung lesions and mesothelioma, and was related to ...

Claims

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Application Information

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IPC IPC(8): C09K3/14C08J5/14C08J3/24C08L61/06C08L61/14D02G3/04D02G3/12D04C1/02D04C1/06D06M15/41
Inventor 李全武刘礼安曾立宏
Owner TALFRI BRAKES
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