Method of fabricating article by using non-sand core and article

Details Method of fabricating article by using non-sand core and article Method of fabricating article by using non-sand core and article

1993-07-28

1997-12-30

Bradley, P. Austin

Static molds

Including destructible feature

249 62, 249 80, 249DIG2, 164369, B28B 734, B22C 910

Patent

active

057026289

ABSTRACT:
A casting is produced using a non-sand plastic core. The plastic core is made of a thermoplastic resin and set in a casting mold so as to form a cavity in the casting mold. A molten metal such as aluminum is poured under pressure into the cavity to form the casting (product). The plastic core maintains its initial shape during casting. The remaining heat of the casting or the solidifying metal causes the plastic core to melt after the casting so that the molten plastic core is easily removed.

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patent: 4747573 (1988-05-01), Nagashima
patent: 5199482 (1993-04-01), Ruhle

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