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Carbon fiber reinforced composite material driving wheel and preparation method thereof

A technology for reinforcing composite materials and carbon fibers, applied in the field of mechanical transmission, can solve the problems of large thermal expansion coefficient, low mechanical strength, poor thermal conductivity, etc., and achieve high specific gravity strength, good self-lubricating effect, and good chemical corrosion resistance.

Active Publication Date: 2012-10-03
常州神鹰碳塑复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at the same time, it also has disadvantages such as low elastic modulus, low mechanical strength, poor thermal conductivity, and large thermal expansion coefficient, which limit the use of plastic parts in high-load and high-speed occasions.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] A carbon fiber reinforced composite transmission wheel, including a transmission gear and a transmission pulley, etc., is made of the following raw materials in weight percentages,

[0019] Polyamide resin accounts for 50-75%, carbon fiber accounts for 10-30%, and the length is 0.5-5mm; glass fiber accounts for 10-20%, and the length is 0.5-5mm; silane coupling agent accounts for 0.5-3%, and silica accounts for 5-20%.

[0020] Put each raw material into the high mixer according to the above formula percentage, and fully stir at 80-110°C to mix all kinds of raw materials evenly, and keep the raw materials dry with a moisture content of less than 0.5%, and then enter the parallel mixer through the conveying device. Co-rotating twin-screw granulator for granulation, and finally placed in the drying oven of the injection molding machine to dry for 6-12 hours before injection molding.

[0021] During the granulation process, it is heated and melted in 9 heating zones, and t...

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Abstract

The invention relates to a carbon fiber reinforced composite material driving wheel. The carbon fiber reinforced composite material is prepared from the following raw materials in percentage by weight: 50-75% of polyamide resin, 10-30% of carbon fiber, 10-20% of glass fiber, 0.5-3% of silane coupling agent and 5-20% of silicon dioxide. The raw materials are granulated and then loaded into an injection molding machine for injection molding. The driving wheel made of the carbon fiber reinforced composite material has the advantages of easy processing, high production efficiency, energy saving, light weight, high specific strength, high specific modulus, good heat resistance, outstanding wear resistance and corrosion resistance, good processing property, good performance designability, stable size and long service life.

Description

technical field [0001] The invention relates to a mechanical transmission technology, in particular to a carbon fiber reinforced composite transmission wheel and a preparation method thereof. Background technique [0002] With the rapid development of the plastics industry, transmission parts such as plastic transmission wheels have replaced metal transmission parts in many occasions, and are more and more widely used in sports and power transmission occasions. The plastic transmission wheel has the advantages of low manufacturing cost, light weight, low noise, chemical corrosion resistance, and self-lubricating transmission. But at the same time, it also has disadvantages such as low elastic modulus, low mechanical strength, poor thermal conductivity, and large thermal expansion coefficient, which limit the use of plastic parts in high-load and high-speed occasions. Contents of the invention [0003] The technical problem to be solved in the present invention is to propo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/00C08K13/04C08K7/06C08K7/14C08K3/36B29B9/00
Inventor 张国良徐艳许太尚王宏亮
Owner 常州神鹰碳塑复合材料有限公司