| 摘要 |
A closed molded system uses reaction injection molding for producing large vessels with hulls, such as a boat hull or large containers. Inserts are used to create a cavity to produce a core. Thereafter the inserts are removed and the same mold is then used to make the other layers of the hull. Closed molding provides controlling the shape of both the outside and the inside of the part. Filler inserts can be used to section off the molds in order to allow for separate core densities.
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