Insert molding method using a crush rib

Details Insert molding method using a crush rib Insert molding method using a crush rib

B - Operations, Transporting

29

C

B29C 45/14 (2006.01)

Patent

CA 2091950

CASE 6612 INSERT MOLDING METHOD USING A CRUSH RIB ABSTRACT OF THE DISCLOSURE A method for encapsulating at least a portion of a heat sink insert with plastic material has been provided in which flashing has been eliminated. There is provided a heat sink insert which has a bottom surface, a shoulder portion, and a rib member formed integrally with and extending upwardly from the shoulder portion to define a crush zone. The rib member is deformed to conform with the contour of a cavity formed by the first and second mold plates so as to create a seal between the insert and the cavity. The rib member also serves to compensate for dimensional variations of the insert and the cavity.

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