In process for molding foamed-plastic products, gases that are formed as byproducts of foaming reaction escape through perforated die. Thus, volatiles are not trapped in pockets that can deform and weaken the molded part.
Distortion-free foamed-plastic parts
NASA Tech Briefs ; 4 , 2
1979-12-01
Miscellaneous
No indication
English
Engineering Index Backfile | 1953
Investigations of plastic and foamed mandrels
NTRS | 1962
|Smooth, ripple-free plastic parts
Automotive engineering | 1979
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