Encapsulation means and method for reducing flash

Details Encapsulation means and method for reducing flash Encapsulation means and method for reducing flash

1984-11-30

1986-10-07

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

29407, 100258A, 264219, 264276, 425116, 425121, 425125, 425408, B29C 3320, B29C 3910

Patent

active

046158570

ABSTRACT:
Injection or transfer molding of plastic is performed in a manner that virtually eliminates flash. Deflection of the mold press is measured with the mold press in a clamping configuration. Then the support structure of the molds is arranged to apply an equal force to the mold face by configuring supporting pillars and bars such that they act as individual springs. Their spring constants and/or lengths are calculated to account for the actual deflection found in the mold press, thereby, producing a uniform pressure on the molds during clamping of the press.

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