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CONTROLLING THE FORMATION OF IMPERFECTIONS DUE TO POLYMERIC SHRINKAGE DURING MOLDING OPERATIONS
CONTROLLING THE FORMATION OF IMPERFECTIONS DUE TO POLYMERIC SHRINKAGE DURING MOLDING OPERATIONS
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机译:在成型过程中控制由于聚合物收缩引起的缺陷形成
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摘要
Particular embodiments of the invention include apparatus and methods for compensating for shrinkage of a polymeric material in a mold during curing operations. Embodiments of the method include providing a mold comprising a molding cavity defining an interior mold volume separated from an exterior environment and introducing a volume of polymeric material into the molding cavity. Such methods further include impeding the development of a void in the volume of polymeric material by, either: isolating the volume of polymeric material within the molding cavity from the exterior environment, or reducing the interior mold volume of the molding cavity to at least substantially consume a volume of polymeric material shrinkage. Such methods further include curing the polymeric material to form a molded polymeric form.
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