Resin vacuum forming device and component preparation method

Abstract

The invention discloses a resin vacuum forming device and component preparation method. The resin vacuum forming device comprises a curing device and a mold, wherein a second vacuum bag, an air guidetool and a first vacuum bag are arranged on the mold, the air guide tool comprises an air guide support and a vacuum tank, one side of the vacuum tank is connected with the first vacuum bag, a pair ofmatching vacuum nozzles are arranged on the other side of the vacuum tank and the second vacuum bag correspondingly, the vacuum nozzles are connected with a vacuum system through a second vacuum pipe, a first one-way permeable membrane is arranged outside the air guide support in a matching mode, a ventilated felt is arranged outside the vacuum tank in a matching mode, and a flow guide medium, aporous isolating membrane and a preformed body are arranged in the first vacuum bag. The invention further discloses a component preparation method by adopting the device. According to the resin vacuum forming device and the component preparation method, the two vacuum bags are arranged in the device to meet vacuum introduction of resin, the air tightness of the vacuum system is guaranteed, rigidsupporting is completed between the two vacuum bags, discharging of volatile matter is facilitated, and the problems that in the prior art, air tightness is poor, air leakage is likely to happen, theobtained component is poorer in performance, and the porosity of the component is high are effectively solved.

Description

technical field [0001] The invention belongs to the technical field of composite material forming devices and methods, and in particular relates to a resin vacuum forming device and component preparation method. Background technique [0002] Liquid forming is considered to be one of the advanced technologies that can effectively reduce the production cost of high-performance composite materials. It has been widely used in aerospace, shipbuilding and other fields. According to its forming principle, it can be divided into RTM (resin transfer molding technology) , VARTM (Vacuum Assisted Resin Transfer Molding Technology), VIP (Vacuum Introduction Molding Technology), etc. Among them, the vacuum-assisted resin transfer molding technology is completed more in the curing process than in the oven, and the pressure applied is mostly a vacuum negative pressure, and the porosity of the product is relatively large. The autoclave forming process, as the mainstream technology for the p...

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Problems solved by technology

[0003] In view of the above deficiencies, the present invention provides a resin vacuum forming device and component preparation method. Two vacuum bags are set in the device to meet the vacuum introduction of the resin and ensure the airtightness of the vacuum system. The introduction of rigid support is conducive to the discharge of volatile matter, and effectively solves the problems of poor air tightness, easy air leakage, poor performance of the obtained components and high porosity in the prior art.

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