UEBERZUGS- BZW. AKDECKFILME FUER DAS GIESSVERFAHREN MIT ABGEDICHTETER VAKUUM- GIESSFORM

摘要

A covering film containing a thermoplastic resin productive of burnt dregs and a thermoplastic resin not productive of burnt dregs moderately disperses in the refractory filler of the mold and forms a relatively thin shell layer near the wall defining the mold cavity in order to successfully avoid generation of mold destruction and sand inclusion and streamline the whole casting process.