Method of cleaning foamed articles

Details Method of cleaning foamed articles Method of cleaning foamed articles

1992-03-13

1993-06-15

Kisliuk, Bruce M.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51410, 51428, B24C 110

Patent

active

052187918

ABSTRACT:
Molded urethane articles (10) are deflashed by impinging or shooting particles (14) of polyvinyl chloride at the flash (18) which develops between the seams of the mold parts. The polyvinyl chloride particles (14) are random in shape and have a maximum cross-sectional measure of 0.125 inches. The polyvinyl chloride particles (14) are set in motion using a blast of air produced by a particle blaster (12). The polyvinyl chloride particles (14) have a hardness range (50-85 Shore A durometer) which is hard enough to deflash articles made of semi-rigid urethane and, yet, soft enough not to damage a polyvinyl chloride cone.

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