Extruder housing for double-screw extruder having an annularly s

Details Extruder housing for double-screw extruder having an annularly s Extruder housing for double-screw extruder having an annularly s

1992-10-27

1994-10-04

Walsh, Donald P.

Stock material or miscellaneous articles

All metal or with adjacent metals

Having metal particles

419 8, 419 49, 366349, 366 84, 425208, 722531, 72272, B22F 704, B22F 708, B01F 712, A23P 112

Patent

active

053525396

ABSTRACT:
An extruder housing is formed for a double-worm or double-screw extruder by providing a steel body with a seamless one-piece structure and hot-isostatically pressing the body and the powder-metallurgical wear-resistant material lining the preferably conical bores of the housing to form a wear-resistant layer which is bonded to the steel body by a diffusion layer.

REFERENCES:
patent: 4855103 (1989-08-01), Ekbom
patent: 5116135 (1992-06-01), Kaiser et al.
patent: 5223345 (1993-06-01), Kaiser et al.

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