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A low-cost and fast curing method for composite materials

A composite material, rapid curing technology, applied in the field of composite material molding, can solve the problems of high production cost, low energy consumption, slow temperature rise, etc., to achieve the effect of low heating energy consumption, accurate control, and ensure product quality

Active Publication Date: 2017-05-10
AEROSPACE RES INST OF MATERIAL & PROCESSING TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a low-cost rapid curing method for composite materials, which solves the problems of slow temperature rise, large energy consumption and high production cost of the traditional heat conduction heating mold, realizes rapid temperature rise, and improves the production efficiency of composite materials. And reduce the performance requirements of auxiliary materials, thereby reducing manufacturing costs, and low energy consumption

Method used

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  • A low-cost and fast curing method for composite materials
  • A low-cost and fast curing method for composite materials

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Embodiment 1

[0052] Intermediate frequency electromagnetic induction heating and curing molding temperature 300 ℃ ~ 320 ℃ carbon fiber polyimide panel, the details are as follows:

[0053] The pre-cured composite material is carbon fiber / polyimide plate, with a length of 400mm, a width of 260mm, and a thickness of 2mm.

[0054] The mold is processed by steel plate, one piece on the upper and lower sides, the length is 420mm, the width is 300mm, and the thickness is 12mm.

[0055] The breathable and thermal insulation layer adopts a 2-layer structure, and the inner layer material can withstand high temperatures exceeding 320°C. The upper and lower planes of the forming mold 2 are made of heat-insulating rock wool boards, with a thickness of 5mm. The narrow parts around the mold are made of glass fiber felt. The solid thickness is not less than 5mm to ensure that the steel mold is not exposed. The outer material is made of ordinary polyester non-woven air felt, which is heat-resistant to 20...

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Abstract

The invention relates to a low-cost quick solidifying method for a composite material. A middle-frequency electromagnetic induction coil directly acts on a metal mould to self heat and solidify to form a composite material, middle frequency heating speed is high, the uniformity of a temperature field is good, the control is exact, the temperature overshoot is small, the production efficiency is greatly improved, and the product quality is ensured; furthermore, by utilizing middle-frequency electromagnetic induction heating, only the self metal mould is heated, a non-metal auxiliary material for forming the composite material is not heated, and the ambient temperature is very low after a special coating is utilized in a forming process, so that a very expensive high-temperature-resistance auxiliary material is not necessary to use when a high-temperature-resistance composite material such as bismaleimide and polyimide is formed; therefore, the manufacturing cost is saved and the energy consumption is low.

Description

technical field [0001] The invention relates to a low-cost rapid curing method for composite materials, which uses a medium-frequency electromagnetic induction coil to act on the spontaneous heating of a metal mold to realize rapid curing and molding of composite materials, and belongs to the technical field of composite material molding. Background technique [0002] Composite materials are increasingly playing an important role in aerospace and other fields, and the research on forming technology has always been one of the hot topics in the field of composite materials. From the 1940s to the present, the composite material forming process has undergone tremendous and profound changes, which has played a decisive role in promoting the development of the entire composite material industry. In the future, with the progress of social industry and the rapid development of science and technology, the development direction of composite material component manufacturing technology ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C35/02B29C70/00
Inventor 崔超胡春雷蒋文革
Owner AEROSPACE RES INST OF MATERIAL & PROCESSING TECH
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