Method of providing a wear-resistant lining in the work chamber

Details Method of providing a wear-resistant lining in the work chamber Method of providing a wear-resistant lining in the work chamber

1976-12-15

1978-10-03

Moon, Charlie T.

Metal working

Method of mechanical manufacture

Assembling or joining

29459, 425208, 366 83, B23P 1102

Patent

active

041175832

ABSTRACT:
A wear-resistant lining is provided in the work chamber of a screw extruder by providing an internal cavity in the extruder housing of a shape corresponding to the external cross-section of a wearing insert but sufficiently larger such that a gap of predetermined width is provided between the walls. A layer of soft, hardenable material is applied to the outer surface of the wearing insert to a thickness slightly greater than the gap. The extruder housing is heated until the cavity expands to a degree sufficient to allow insertion of the insert. The insert is then placed into the cavity and the material is allowed to harden, as by heat hardening due to the temperature of the extruder housing.

REFERENCES:
patent: 2519014 (1950-08-01), Bankey
patent: 3308524 (1967-03-01), Moyer
patent: 3382563 (1968-05-01), Barroil et al.
patent: 3496603 (1970-02-01), Listner et al.
patent: 3632255 (1972-01-01), Geyer
patent: 3718956 (1973-03-01), Sekimoto et al.
patent: 3900188 (1975-08-01), Seufert

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