Method and apparatus for gushing air stream into metal molds in

Details Method and apparatus for gushing air stream into metal molds in Method and apparatus for gushing air stream into metal molds in

1988-09-15

1990-12-11

Heitbrink, Jill L.

Plastic and nonmetallic article shaping or treating: processes

With step of cleaning, polishing, or preconditioning...

26432814, 26432816, 264335, 264336, 425547, 425552, 425437, B29C 4572

Patent

active

049769006

ABSTRACT:
A method and an apparatus for injecting a steam into a mold in an injection molding machine by injecting a desired stream toward the opening of the metal mold including a gate and cavities in connection with the opening and closing operation of the metal mold thereby intending the cooling solidification of the molten resin on th gate portion and simultaneously intending removal of dewing and an oily matter on the surface of the metal mold.

REFERENCES:
patent: 3128499 (1964-04-01), Smolenski
patent: 3645319 (1972-02-01), Pondelicek et al.
patent: 3805875 (1974-04-01), Daugherty et al.
patent: 4151236 (1979-04-01), Ryder
patent: 4164523 (1979-08-01), Hanning
patent: 4687613 (1987-08-01), Tsutsumi
patent: 4707309 (1987-11-01), Voss et al.

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