Wedge main friction plate made of high-temperature-resistant high-polymer composite and production method of wedge main friction plate

A composite material and high-temperature-resistant technology, which is applied in the direction of layered products, chemical instruments and methods, and synthetic resin layered products, can solve problems such as thermal recession, and the decrease and decrease of the friction coefficient of the main friction plate of the wedge.

Active Publication Date: 2015-07-29
HEBEI XINJI TENGYUE INDAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a high-temperature-resistant polymer composite oblique wedge main friction plate, which can overcome the drop or sharp drop in the friction coefficient of the oblique wedge main friction plate during use , Defects that cause thermal recession

Method used

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  • Wedge main friction plate made of high-temperature-resistant high-polymer composite and production method of wedge main friction plate
  • Wedge main friction plate made of high-temperature-resistant high-polymer composite and production method of wedge main friction plate
  • Wedge main friction plate made of high-temperature-resistant high-polymer composite and production method of wedge main friction plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A high-temperature-resistant polymer composite oblique wedge main friction plate, the production method of which is as follows:

[0053] (1) Resin copolymerization reaction:

[0054] The raw materials were weighed according to the following components by weight: 1.6 Kg of 4,4-diphenylmethane bismaleimide, and 0.9 Kg of diallyl bisphenol A.

[0055] Add 4,4-diphenylmethane bismaleimide, diallyl bisphenol A and catalyst in proportion to a three-necked flask equipped with a stirrer, thermometer and reflux condensation, heat to 125°C to melt prepolymerization, and control The reaction temperature is 125~130°C, and the prepolymerization time is 3.5~4 hours to obtain a solid copolymerized modified resin. It is pulverized and sieved with 100 meshes to obtain the desired copolymerized modified resin powder. Wherein, the catalyst adopts n-butylamine, and its consumption is the consumption of catalyst in general chemical reaction, with 3‰~20% of the weight of 4,4-diphenylmethan...

Embodiment 2

[0073] A high-temperature-resistant polymer composite oblique wedge main friction plate, the production method of which is as follows:

[0074] (1) Resin copolymerization reaction:

[0075] The raw materials were weighed according to the following components by weight: 1.0 Kg of 4,4-diphenylmethane bismaleimide, and 1.2 Kg of diallyl bisphenol A.

[0076] Add 4,4-diphenylmethane bismaleimide, diallyl bisphenol A and a catalyst in a three-necked flask equipped with a stirrer, a thermometer and reflux condensation according to the proportion, heat to a certain temperature to melt the prepolymerization, and control The reaction temperature is 125~130°C, and the prepolymerization time is 3.5~4 hours to obtain a solid copolymerized modified resin. It is pulverized and sieved with 100 meshes to obtain the desired copolymerized modified resin powder. Wherein, the catalyst adopts n-butylamine, and its consumption is the consumption of catalyst in general chemical reaction, with 3‰~2...

Embodiment 3

[0093] A high-temperature-resistant polymer composite oblique wedge main friction plate, the production method of which is as follows:

[0094] (1) Resin copolymerization reaction:

[0095] The raw materials were weighed according to the following components by weight: 1.7 Kg of 4,4-diphenylmethane bismaleimide, and 0.6 Kg of diallyl bisphenol A.

[0096] Add 4,4-diphenylmethane bismaleimide, diallyl bisphenol A and a catalyst in a three-neck flask equipped with a stirrer, a thermometer and reflux condensation according to the proportion, heat to a certain temperature to melt the prepolymerization, and control The reaction temperature is 125~130°C, and the prepolymerization time is 3.5~4 hours to obtain a solid copolymerized modified resin. It is pulverized and sieved with 100 meshes to obtain the desired copolymerized modified resin powder. Wherein, the catalyst adopts n-butylamine, and its dosage is the dosage of catalysts in general chemical reactions, preferably 3‰~20‰. ...

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Abstract

The invention relates to a wedge main friction plate made of a high-temperature-resistant high-polymer composite. The wedge main friction plate comprises an enhancement layer and a wear-resistant layer, wherein the enhancement layer is prepared from 35-45 parts of copolymerized and modified resin and 55-65 parts of alkali-free glass cloth; the wear-resistant layer is prepared form 12-20 parts of sepiolite fibers, 5-15 parts of molybdenum disulfide, 10-15 parts of graphite, 1-5 parts of copper fibers, 1-5 parts of aramid fibers, 9-15 parts of carbon fibers, 3-8 parts of glass fibers, 5-10 parts of chromite ore powder, 5-10 parts of kaolin, 1-4 parts of titanium dioxide and 14-23 parts of copolymerized and modified resin; the copolymerized and modified resin is prepared from 1.0-1.7 parts of 4,4-diphenylmethylenebismaleimide and 0.6-1.2 parts of diallyl bisphenol A. The decomposition temperature of the friction plate which is under a partially larger friction shear stress working condition for a long time is greatly increased. The invention further provides a production method of the wedge main friction plate made of the high-temperature-resistant high-polymer composite.

Description

technical field [0001] The invention relates to the technical field of railway vehicle equipment, in particular to a high-temperature-resistant polymer composite oblique wedge main friction plate and a production method thereof. Background technique [0002] The main friction plate of the wedge made of polymer composite material is one of the components of the railway wagon. It is installed in the wedge body of the friction and damping device of the wagon bogie, and is under the condition of high friction and shear stress for a long time. [0003] The matrix (adhesive) of existing friction materials is thermosetting resin phenolic resin and rubber. When the friction plate is under the condition of high frictional shear stress for a long time, the frictional surface of it and the metal pair will generate a very high temperature, reaching 200-300°C, or even higher. This has reached the thermal decomposition temperature region of resins and rubbers. At this time, the macromol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/04B32B27/28B32B27/18C08L79/08C08L77/10C08K13/04C08K7/10C08K7/06C08K7/14C08K3/30C08K3/04C08K3/34C08K3/22C08G73/12
Inventor 许全起满伟方永智
Owner HEBEI XINJI TENGYUE INDAL
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