This RTM is believed to be unfamiliar to everyone, so what is RTM? RTM is commonly known as vacuum introduction process, which refers to laying fiber cloth in the mold cavity, using injection equipment to inject a special resin system into the closed mold cavity, the mold has peripheral sealing and fastening, and injection and exhaust systems to ensure smooth resin flow and eliminate Full gas in the cavity and complete infiltration of fibers, also has a heating system, which can heat and cure the formed composite part.
RTM is suitable for large-scale FRP products such as blades, nacelles, yachts, etc. Its advantages are that the price of the intervention molding and resin material used in the resin transfer molding process is cheaper than that of prepreg, and it can be stored at room temperature, Moreover, during the molding process, the volatile components are burned, and the strength of the product is many times higher than that of the hand lay-up process, and the weight will be reduced a lot.
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