Extruder housing for a double-worm extruder and method of making

Details Extruder housing for a double-worm extruder and method of making Extruder housing for a double-worm extruder and method of making

1992-02-20

1993-06-29

Walsh, Donald P.

Stock material or miscellaneous articles

All metal or with adjacent metals

Having metal particles

428553, 419 8, 419 49, B22F 704

Patent

active

052233456

ABSTRACT:
An extruder-housing part for a double-worm extruder for the plastification of thermoplastic synthetic resin and plastic mixtures has two chambers for receiving the worms and forming a figure eight cavity. A wear-resistant material formed as a hard-phase layer is provided to line the chambers. The extruder-housing part is a one-piece seamless structure with an isotropic lattice of powder metallurgical origin with a hot isostatic pressing configuration.

REFERENCES:
patent: 4969262 (1990-11-01), Hiraoka et al.
patent: 5041168 (1991-08-01), Purnell et al.
patent: 5056209 (1991-10-01), Ohashi et al.
patent: 5069866 (1991-12-01), Ekbom

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