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Composite friction plate and preparation method thereof

A technology of friction plate and composite type, which is applied in the field of composite friction plate and its preparation, can solve the problems of low shear strength, etc., and achieve the effects of stable product quality, simple production process and high production efficiency

Active Publication Date: 2014-04-02
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a composite friction plate and its preparation method, which can effectively solve the problem of low shear strength between the wear-resistant layer and the reinforcing layer in the composite friction plate. The low temperature performance of the composite friction plate can be guaranteed, and its production process is simple, the production efficiency is high, and the product quality is stable

Method used

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  • Composite friction plate and preparation method thereof
  • Composite friction plate and preparation method thereof
  • Composite friction plate and preparation method thereof

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preparation example Construction

[0030] The present invention also provides a method for preparing the above-mentioned composite friction plate, which includes the following steps:

[0031] (1) Preparation of wear-resistant layer raw materials: Weigh 6 to 25 parts of bonding resin, 45 to 75 parts of fiber reinforced material, and 10 to 30 parts of friction performance adjusting material by weight, and add them to a high-speed mixer and stir for 5 to 35 minutes Mix evenly, and dry the mixed raw materials at a temperature of 80°C for 1 to 3 hours;

[0032] (2) Reinforcement layer pre-curing: Fix the upper and lower friction plate molds on the molding machine, and lay the glass fiber cloth reinforced phenolic resin neatly in the lower friction plate mold. The specific number of layers is determined by the thickness of the reinforcement layer. Then control the molding machine to close the upper and lower friction plate molds, first raise the temperature to 100 to 120°C, set the pressure of the molding machine to ...

Embodiment 1

[0036] Example 1: A composite friction plate, including a wear-resistant layer 1 and a reinforcing layer 2, the raw material ratio of the wear-resistant layer 1 is, in parts by weight: 15 parts of nitrile modified phenolic resin; 12 parts of carbon fiber , 35 parts of sepiolite fiber, 8 parts of copper fiber, 20 parts of potassium titanate whisker; 6 parts of molybdenum disulfide, 2 parts of zinc stearate, 2 parts of cashew nut shell oil friction powder. The mass ratio of glass fiber cloth and phenolic resin in the glass fiber cloth reinforced phenolic resin of the reinforcement layer 2 is 80:20. When the phenolic resin is at 125°C, its inclined plate flow distance is 50mm, and at 160°C, its hot plate curing is 60s.

[0037] When preparing a composite friction plate, first add the above-mentioned wear-resistant layer raw materials into a high-speed mixer and stir for 5 minutes to mix evenly. The uniformly mixed raw materials are dried at 80°C for 1.5 hours to complete th...

Embodiment 2

[0038]Example 2: A composite friction plate, including a wear-resistant layer 1 and a reinforcing layer 2, the raw material ratio of the wear-resistant layer 1 is, in parts by weight: 6 parts of nitrile-modified phenolic resin, boron-modified 10 parts of phenolic resin; 10 parts of carbon fiber, 30 parts of sepiolite fiber, 6 parts of copper fiber, 18 parts of potassium titanate whisker; 10 parts of molybdenum disulfide, 5 parts of zinc stearate, 5 parts of cashew nut shell oil friction powder. The mass ratio of glass fiber cloth and phenolic resin in the glass fiber cloth reinforced phenolic resin of the reinforcement layer 2 is 65:35. When the phenolic resin is at 125°C, its inclined plate flow distance is 30mm, and at 160°C, its hot plate curing time is 45s.

[0039] When preparing a composite friction plate, first add the above-mentioned wear-resistant layer raw materials into a high-speed mixer and stir for 15 minutes to mix evenly. The uniformly mixed raw materials ar...

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Abstract

The invention discloses a composite friction plate and a preparation method thereof. The composite friction plate comprises a wear resistant layer and a reinforcement layer, wherein the wear resistant layer is composed of the components: adhesive resin, a fiber reinforced material and a friction performance adjusting material; and the reinforcement layer is composed of the component: glass fiber cloth reinforced phenolic resin. By using the composite friction plate, the problem of low shear strength between the wear resistant layer and the reinforcement layer in the composite friction plate is effectively solved, and the low temperature performance of the composite friction plate is ensured; and in addition, the composite friction plate is simple in production process, high in production efficiency and stable in product quality so as to be widely applied to the fields such as railways, subways, military industry, engineering machines and the like with relatively high requirements for mechanical strength and friction performance.

Description

technical field [0001] The invention relates to a friction plate and a preparation method thereof, in particular to a composite friction plate and a preparation method thereof. Background technique [0002] With the continuous development of various mechanical equipment and vehicles in the direction of heavy loads and high speeds, higher and higher requirements are placed on the performance of friction materials. The friction materials used must have stable friction coefficients and good wear resistance. Wear resistance, sufficient mechanical strength, and excellent high and low temperature resistance can ensure the stability and reliability of the equipment. Therefore, it is imperative to develop composite friction products with high load-bearing and wear-resistant functions. Composite friction products usually consist of a wear-resistant layer and a reinforced layer. The wear-resistant layer has the functions of anti-wear and protecting the counterpart, and the reinfo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/14
Inventor 王全兵刘爱学钱磊张志军邓凯桓
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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