Polymer composite material slant wedge friction board for railroad cargo vehicle

A technology of composite materials and railway freight cars, which is applied in the field of the composition of polymer composite materials and its production technology, and can solve the problems that have not been seen before.

Inactive Publication Date: 2005-05-25
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

A wedged friction plate for the railway car is prepared from the high-molecular composite material, which is prepared from chrysotile fibres or sepiolite fibres or preoxidized fibres, copper (or steel) fibres, phenolic resin or the cashew shell oil (or nitrile rubber) modified phenolic resin, MoS2 and graphite. Its advantages are high stability of friction coefficient, and no damage to the vibration damper.

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 (seconda...

Claims

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Application Information

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IPC IPC(8): C08J5/14C08K7/06C08L61/14
Inventor 赵泽
Owner 赵泽
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