Preparation device and method for carbon fiber pipe fitting

Abstract

The invention discloses a preparation device and method for a carbon fiber pipe fitting. The method includes the following steps that a pipe blank composite part is prepared; a first pipe fitting mold, a second pipe fitting mold and granular media are heated; a releasing agent is smeared on the inner side of the first pipe fitting mold and the inner side of the second pipe fitting mold; an air bagprovided with the pipe blank composite part is placed between the first pipe fitting mold and the second pipe fitting mold, and the first pipe fitting mold and the second pipe fitting mold are closed; the heated granular media are placed in the pipe blank composite part; the granular media, the first pipe fitting mold and the second pipe fitting mold are heated; the granular media are pressurizedto the first set pressure value; the temperature is increased continuously to the third set temperature value; the granular media are pressurized continuously, and the temperature and the pressure are kept for the first set time; the temperature is increased continuously, the granular media are pressurized, and the temperature and the pressure are kept for the second set time; and the granular media are cooled to the room temperature, the pressure is released gradually, and a carbon fiber pipe fitting finished product is obtained. With the method, the material strength and the forming precision of the pipe fitting can be improved.

Description

technical field [0001] The invention relates to the field of carbon fiber pipe preparation, in particular to a carbon fiber pipe preparation device and method. Background technique [0002] Lightweight is one of the effective ways to achieve the goal of energy saving, emission reduction and environmental protection. Carbon fiber composite material refers to a composite material made of carbon fiber and epoxy resin, which has high strength (5 times that of steel), excellent heat resistance (can withstand high temperatures above 2000°C), and excellent thermal shock resistance , low thermal expansion coefficient (small deformation), small heat capacity (energy saving), small specific gravity (1 / 5 of steel), excellent corrosion resistance and radiation performance, and many other advantages play a key role in lightweighting. Carbon fiber composite hollow variable cross-section parts are typical lightweight components that combine material reduction and structure reduction. The...

AI Technical Summary

Problems solved by technology

Its cost is high, the forming process consumes a lot, and it is difficult to realize low-cost and rapid manufacturing of structural parts

The molding method is a process that uses a rigid mold to provide pressure forming. It is not suitable for tubular parts, and it is prone to problems such as difficulty in demoulding, shape defects, etc.

It is difficult to prepare parts with concave surfaces by winding method, and the cost of winding machine is high

All of these methods are prone to demoulding problems due to the change of cross-section when forming hollow variable-section parts.

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