Polymer composite material slant wedge friction board for railroad cargo vehicle

A technology for composite materials and railway wagons, which is applied in the composition and production process of polymer composite materials, and can solve unseen problems

Inactive Publication Date: 2006-11-15
赵泽
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The result of the novelty search is that: there is no domestic similar literature report

Method used

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Embodiment Construction

[0045] Method 1: 44 parts by weight of chrysotile fiber; 2 parts by weight of steel fiber; 17 parts by weight of phenolic resin; 12 parts by weight of molybdenum disulfide; and 12 parts by weight of graphite.

[0046] This formula is produced by dry method, and the components and process are simple. Due to the excellent properties of chrysotile fiber itself and the very good binding force with the base material phenolic resin, the product performance is excellent, and because chrysotile is used, so No risk of cancer.

[0047] Method 2: 40 parts by weight of sepiolite fiber; 6 parts by weight of copper fiber; 19 parts by weight of cashew nut shell oil modified phenolic resin; 10 parts by weight of molybdenum disulfide; and 15 parts by weight of graphite.

[0048] The formula is produced by a dry method. Under the current situation that people generally have concerns about the carcinogenic effect of asbestos, it is more feasible to replace asbestos with sepiolite fiber. (The la...

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Abstract

The polymer composite cam friction plate for railway freight cars is a product containing polymer substances and the technical field of its forming and manufacturing, especially the composition and production process of the polymer composite material specially used for the railway freight car cam wedge friction plate. The technical problem to be solved is: the product is a safe and reliable friction plate with relatively stable friction coefficient, less influence by external environment and temperature, no damage to the body during operation. The technical scheme is as follows: the product is composed of the following components and parts by weight: 35-45 parts by weight of chrysotile fiber or sepiolite fiber or pre-oxidized fiber, 1-8 parts by weight of copper fiber or steel fiber; phenolic resin or cashew nut 17-23 parts by weight of shell oil-modified phenolic resin or nitrile-butadiene rubber-modified phenolic resin; 6-13 parts by weight of molybdenum disulfide; 8-15 parts by weight of graphite. It is then processed by conventional dry or wet processes. The test proves that the product has reached the design target. It can be used to manufacture the wedge friction plate of the wedge friction shock absorber of railway freight car bogies.

Description

technical field [0001] The invention belongs to the technical field of products containing polymer substances and their forming and manufacturing, and in particular relates to the composition and production process of polymer composite materials specially used for wedge friction plates of railway wagons. Background technique [0002] The wedge type friction shock absorber is a relatively mature technology in the field of railway vehicles. As far as the applicant knows, as far back as 1964, designed by Qiqihar Rolling Stock Works and Railway Science Research Institute, the turn 8A bogie trial-manufactured by Dalian Locomotive and Rolling Stock Works began to use the wedge type friction shock absorber. The shock absorber is composed of a spring, a side frame facade friction plate and an oblique wedge. The spring presses the oblique wedge tightly on the side frame elevation friction plate (primary friction surface) and the slope of the bolster (secondary fr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L61/14C08K7/06C08J5/14
Inventor 赵泽
Owner 赵泽
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