RTM (resin transfer molding) mold

Abstract

The invention provides an RTM (resin transfer molding) mold. The RTM mold comprises a male mold and a female mold, wherein glass fiber reinforced plastics are adopted for the male mold as a substrate, the female mold is divided into a female mold main body and an edge, silica gel is adopted for the female mold main body as a substrate, the glass fiber reinforced plastics are adopted for the edge as a substrate, and the edge is symmetrical with respect to the main body; the middle position of each end of the male mold is respectively provided with a positioning pin, the edge of the female mold is provided with a positioning hole corresponding to the positioning pin, the lower edge and peripheral edge of the female mold are provided with a sealing rubber strip, the sealing rubber strip is telescopic, the female mold main body is provided with two through holes, namely an air suction opening and a rubber injection opening, and the air suction opening and the rubber injection opening are respectively and correspondently provided with a sealing cover for sealing the air suction opening and the rubber injection opening. The RTM mold has the beneficial effects: the problems of the long-time vacuum bag pressed glass fiber reinforced plastic molding process that the vacuum bag film cannot be reused, the inner surface of a product is not smooth and the like can be solved, the problems of the traditional RTM mold that the product resin is accumulated, the strength is reduced due to the untightness in sealing can be solved, the working environment can be greatly improved, the strength of the product main body can be improved, and the accumulated resin can be eliminated.

Description

technical field [0001] The invention belongs to the technical field of composite fiberglass product molding, in particular to the fiberglass product formed by RTM. Background technique [0002] Traditional RTM molding FRP products need to be pressed with a vacuum bag, which cannot be reused multiple times, or the mold is deformed due to long-term use of the mold during the pressing process of the FRP mold, resulting in resin deposition on the product surface or insufficient strength of the finished product due to loose mold fit. The problem is that the current production method is to repair the product by grinding and resin painting after the product is formed. This production method wastes a lot of man-hours and materials, and the dust generated by grinding seriously affects the operating environment, and it is difficult to guarantee product quality. Contents of the invention [0003] The purpose of the present invention is to overcome the traditional RTM molded FRP produ...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the traditional RTM molded FRP product surface resin deposition, insufficient product strength and other problems caused by grinding, repair work caused by man-hours, waste of materials and the impact of a large amount of dust due to grinding on the working environment, and it is difficult to ensure Product quality and other issues

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