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公开(公告)号：US3613162A
公开(公告)日：1971-10-19
申请号：US3613162D
申请日：1970-03-10
Applicant: STANDARD OIL CO OHIO
Inventor： TALSMA HERBERT
CPC classification number: B29C47/24 , B29C47/0023 , B29C47/003 , B29C47/0033
Abstract: PLASTIC RESIN IS EXTRUDED OVER A ROTATABLE COOLING MANDREL IN A DIE ASSEMBLY WHICH IS DISPOSED UPON THE BARREL OF AN EXTRUDER. A ROTATABLE DIE BUSHING EMBRACES THE END OF THE MANDREL; WHEN THE DIE BUSHING IS ROTATED IN UNISON WITH THE MANDREL IN A DIRECTION COUNTER TO THAT IMPARTED THE EXTRUDATE BY THE HELIX, AND EXTRUDATE WITH NO NET ROTATION IS PRODUCED.
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