A wear-resistant and high-temperature-resistant polymer composite side bearing wear plate and its production method

A composite material and production method technology, applied in the direction of layered products, chemical instruments and methods, synthetic resin layered products, etc., can solve problems such as poor fracture toughness, adhesive wear of dual materials, unstable friction coefficient, etc., and achieve wear performance Significant, superior wear resistance, obvious effect

Active Publication Date: 2018-11-13
HEBEI XINJI TENGYUE INDAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing side bearing wear plates use pure diphenylmethane bismaleimide (BMI). The disadvantages of pure diphenylmethane bismaleimide (BMI) are brittleness, poor fracture toughness, and unstable friction coefficient. Serious adhesive wear occurs with the dual material, and the friction between the side bearing wear plate and the dual produces a high temperature. The strength of the side bearing wear plate is weakened due to heat extrusion, and the wear increases, causing recession and forming with the convex umbilicus of the side support body. clearance fit, causing looseness

Method used

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  • A wear-resistant and high-temperature-resistant polymer composite side bearing wear plate and its production method
  • A wear-resistant and high-temperature-resistant polymer composite side bearing wear plate and its production method
  • A wear-resistant and high-temperature-resistant polymer composite side bearing wear plate and its production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A wear-resistant and high-temperature-resistant polymer composite side bearing wear plate, which includes a reinforcement layer and a wear-resistant layer. The specific production method is as follows:

[0047] (1) Preparation of copolymerized modified resin:

[0048] Weigh the following raw materials: diphenylmethane bismaleimide (BMI) 200Kg, diaminodiphenylmethane (DDM) 100Kg, nano-Si 3 N 4 Particles 4.5Kg and diethylamine 1.5Kg.

[0049] Add diphenylmethane bismaleimide (BMI), diaminodiphenylmethane (DDM), nano Si 3 N 4 Particles and diethylamine, the reaction temperature is controlled at 125°C, and the prepolymerization time is 3.5 hours to obtain a solid copolymerization modified (BMI) resin. Crush it and sieve it with 100 meshes to get the required copolymerization modified (BMI) resin powder.

[0050] (2) Preparation of the reinforcement layer blank

[0051] Mix and dissolve 40Kg of copolymerized modified resin powder and acetone 1:1 according to the weight r...

Embodiment 2

[0062] A wear-resistant and high-temperature-resistant polymer composite side bearing wear plate, which includes a reinforcement layer and a wear-resistant layer. The specific production method is as follows:

[0063] (1) Resin copolymerization reaction:

[0064] Made according to the following components by weight: diphenylmethane bismaleimide (BMI) 150Kg, diaminodiphenylmethane (DDM) 80Kg, nano-Si 3 N 4 Particles 2.3Kg and diethylamine 0.75Kg

[0065] Add diphenylmethane bismaleimide (BMI), diaminodiphenylmethane (DDM), nano Si 3 N 4 Particles and diethylamine, the reaction temperature is controlled at 125°C, and the prepolymerization time is 3.5 hours to obtain a solid copolymerization modified (BMI) resin. Crush it and sieve it with 100 meshes to get the required copolymerization modified (BMI) resin powder.

[0066] (2) Preparation of the reinforcement layer blank

[0067] Mix and dissolve 35Kg of copolymerized modified (BMI) resin powder and acetone 1:1.2 according...

Embodiment 3

[0078] A wear-resistant and high-temperature-resistant polymer composite side bearing wear plate, which includes a reinforcement layer and a wear-resistant layer. The specific production method is as follows:

[0079] (1) Resin copolymerization reaction:

[0080] Made according to the following components by weight: diphenylmethane bismaleimide (BMI) 350Kg, diaminodiphenylmethane (DDM) 160Kg, nano-Si 3 N 4 Particles 10.2Kg and ethylenediamine 2.55Kg;

[0081] Add diphenylmethane bismaleimide (BMI), diaminodiphenylmethane (DDM), nano Si 3 N 4 Particles and ethylenediamine, the reaction temperature is controlled at 125°C, and the prepolymerization time is 3.0 hours to obtain a solid copolymerization modified (BMI) resin. Crush it and sieve it with 100 meshes to get the required copolymerization modified (BMI) resin powder.

[0082] (2) Preparation of reinforced layer blank

[0083] Mix and dissolve 45Kg of copolymerized modified (BMI) resin powder and acetone 1:0.9 accordi...

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Abstract

The invention relates to a wear-resistant high-temperature-resistant high-polymer composite side bearing wear plate and a production method thereof. The wear-resistant high-temperature-resistant high-polymer composite side bearing wear plate comprises a reinforcement layer and a wear layer, wherein the reinforcement layer is prepared from a copolymerization modified resin and an alkali-free glass cloth; the wear layer is prepared from the following raw materials in parts by weight: meerschaum fibers, barite, coke, copper fibers, aramid fibers, ceramic fibers, glass fibers, chromite powder, kaolin, titanium white and a copolymerization modified resin; the copolymerization modified resin is prepared from the following raw materials in parts by weight: 1.5-3.5 parts of diphenylmethane bismaleimide (BMI), 0.8-1.5 parts of diaminodiphenylmethane (DDM), nano Si3N4 and a right amount of chain extender; and the nano Si3N4 accounts for 0.5-2.0 wt% of the copolymerization modified resin raw material. By compounding multiple raw materials, the obtained high-polymer composite side bearing wear plate has the characteristics of high temperature resistance and excellent wear resistance.

Description

technical field [0001] The invention relates to a wear-resistant and high-temperature-resistant polymer composite side bearing wear plate and a production method thereof, belonging to the technical field of railway vehicle equipment. Background technique [0002] The side bearing wear plate increases the turning resistance moment between the bogie and the car body, and improves the high-speed running stability of the bogie. [0003] The existing side bearing wear plates use pure diphenylmethane bismaleimide (BMI). The disadvantages of pure diphenylmethane bismaleimide (BMI) are brittleness, poor fracture toughness, and unstable friction coefficient. Serious adhesive wear occurs with the dual material, and the friction between the side bearing wear plate and the dual produces a high temperature. The strength of the side bearing wear plate is weakened due to heat extrusion, and the wear increases, causing recession and forming with the convex umbilicus of the side support body...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B17/04B32B17/10B32B27/28B32B27/18B32B37/06B32B37/10C08L79/08C08L77/10C08K7/14C08K3/34C08K13/04C08K7/10C08K3/30C08K3/04C08K7/06C08K7/04C08K3/22
CPCB32B5/024B32B27/12B32B27/18B32B27/281B32B37/06B32B37/10B32B2260/021B32B2260/046B32B2262/0269B32B2262/10B32B2262/101B32B2262/103B32B2262/105B32B2307/306B32B2307/554B32B2605/10C08K3/34C08K7/14C08K2201/011C08L79/08C08L2201/08C08L2205/16C08L77/10C08K13/04C08K7/10C08K2003/3045C08K3/04C08K7/06C08K7/04C08K3/346C08K2003/2241
Inventor 许全起方永智满伟
Owner HEBEI XINJI TENGYUE INDAL
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