Plastic article or earthenware shaping or treating: apparatus – With indicator – signal – recorder – illuminator – or inspection... – For molding temperature or pressure
Patent
1989-10-31
1992-06-30
Woo, Jay H.
Plastic article or earthenware shaping or treating: apparatus
With indicator, signal, recorder, illuminator, or inspection...
For molding temperature or pressure
73 5409, 264 401, 425149, 425171, 425544, B29C 4576, B29C 4792, G01N 1104
Patent
active
051258218
ABSTRACT:
A measuring device for enabling an evaluation of a moldability of a thermosetting resin by determination of parameters suitable for high accuracy forecasting of flow and curing behaviors of the thermosetting resin within a metal mold, as well as a metal mold for molding a thermosetting resin and method for constructing runners of the metal mold which is effective to minimize if not prevent the occurrence of false in moldings. By utilizing unique or peculiar parameters of the thermosetting resin which are not influenced by a molding condition and by conducting a flow simulation with a metal mold having a flow passage of arbitrary dimensions using the determined values for the parameters, a forecasting of a flow in an actual metal mold is enabled so as to preselect optimum molding conditions and flow passage dimensions for a metal mold.
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Saeki et al, "Simulation of Balanced Filling in a Multi-Cavity Mold for Encapsulation of Semiconductor Devices", 4th Annual International Polymer Processing Society Meeting, May 1988.
Kaneda Aizo
Nishi Kunihiko
Saeki Junichi
Sugino Kazuhiro
Yoshida Isamu
Hitachi , Ltd.
Mackey James P.
Woo Jay H.
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