Method and mold for manufacture of a solid molded article, and a solid molded article manufactured according to the method

摘要

A method for molding a thick part without significant surface distortion is disclosed. A cavity mold having a first core mold portion with strakes is used to create a first molded form having ribs proportioned and spaced apart to prevent distortions on one surface of the part due to shrinkage. A second core mold portion replaces the first core mold portion for creation of a second molded form having complementary ribs which are similarly proportioned to prevent distortions in an opposite surface of the part. The first form acts as a mold for the second form, the complementary ribs fuse together and form a homogeneous mass between the opposite surfaces of the part.