RTM

The basic principle of Resin Transfer Molding refers to laying fiberglass, fiberglass fabrics, various inserts, demolding cloths, resin penetration layers, laying resin pipelines, and covering nylon (or rubber, silicone) flexible films (i.e. vacuum bags) on the cured adhesive layer, with the film tightly sealed around the edges of the mold cavity. Vacuum the mold cavity and inject resin into it. The molding process of impregnating fiber bundles with resin flowing along resin pipelines and fiber surfaces in a vacuum state, and curing products at room temperature or heating conditions.
1. Compared with hand laid components, the mechanical performance of components formed by vacuum induction technology can be improved by 1.5 times in terms of strength, stiffness, and other physical properties.
2. Components with good repeatability have a relatively constant resin ratio, with a porosity of ≤ 1% and a hand layup of ≥ 5%
3. The lightweight fiber content can reach up to 75-80%, without the need for additional materials to connect the core material.
4. The environmentally friendly vacuum import process is almost a closed mold forming process, and volatile organic compounds and toxic air pollutants are limited in the vacuum bag.
5. Low cost, high efficiency, high fiber content, resin waste rate less than 5%, can save labor by more than 50% compared to the mold opening process. Before and after adding the core material, there is no need to wait for the resin to cure. Especially when reinforcing in the board, the material and labor savings are considerable.