High-pressure gas tank forming device and method for polymer-based carbon fiber composite materials

Abstract

The invention discloses a high-pressure gas tank formation device and a high-pressure gas tank formation method for a polymer-based carbon fiber composite material. The device comprises a high-pressure gas tank, a control system, a polytetrafluoroethylene container, a microwave transmitter, a numerical control servo mechanism, a vacuum bag, a gas suction pipe, a thermocouple signal wire, a thermocouple, a vacuum pump and a high-pressure gas boosting pump. The method comprises the following steps of: arranging the vacuum bag filled with a blank into the polytetrafluoroethylene container, and positioning; fully filling microwave absorption liquid which is subjected to degassing treatment into the polytetrafluoroethylene container, and sealing; putting the sealed polytetrafluoroethylene container into the high-pressure gas tank, and closing; and controlling the microwave transmitter to scan and irradiate the microwave absorption liquid through a main control circuit, so that the polymer-based carbon fiber composite material blank is cured and formed at the temperature under the pressure. The method has a relatively independent high-temperature high-pressure environment and is high inthermal efficiency and low in energy consumption; and the device has a simple structure.

Description

technical field [0001] The invention relates to a forming device and method for composite materials, in particular to a high-pressure gas tank forming device and method for polymer-based carbon fiber composite materials. Background technique [0002] Polymer-based carbon fiber composites, also known as carbon fiber-reinforced resin-based composites, have excellent performance and a wide range of uses, especially in the aerospace field. [0003] At present, the method of producing high-quality polymer-based carbon fiber composite materials is mainly the autoclave forming method. This method is to impregnate the carbon fiber as a reinforcing fiber in the matrix material and lay it layer by layer to form a prepreg. The matrix material is epoxy resin. Resin, polyester resin or thermoplastic resin, etc., the prepreg is cut and laid on the mold to obtain a composite material blank, and then the composite material blank is placed in an autoclave, and the gas in the autoclave is he...

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Problems solved by technology

However, the disadvantages of the autoclave forming method are also obvious: (1) As a high-temperature and high-pressure pressure vessel, the manufacturing cost of the autoclave is high

(2) The temperature and pressure of the gas in the autoclave change slowly, the control accuracy is poor, and the temperature and pressure changes of the gas affect each other, making the control difficult

(3) In order to ensure the uniform temperature of the gas in the autoclave, a blast system working under high temperature and high pressure is required, which makes the internal structure of the autoclave complex

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