Extrusion machinery

Details Extrusion machinery Extrusion machinery

1984-06-13

1986-01-28

Larson, Lowell A.

Metal deforming

By extruding through orifice

By rotating impeller means

72342, 29434, 425376B, 425378R, B21C 2300, B21D 3716

Patent

active

045663033

ABSTRACT:
Conform machinery for continuous friction-effected extrusion having a wheel comprising two cheek members, a central hub which forms the base of the working passageway and two separate ring members which form the side walls of the working passageway and provide slip surfaces between the cheek members and the rings. The abutting slip surfaces of the cheek members and rings are shaped to allow thermal expansion of the rings relative to the cheek members with the slip surfaces in driving engagement but to limit radial movement in a radial direction at any particular place on the circumference to a distance less than the relative expansion in the diameter of the ring between ambient temperatures and the expected working conditions of the machine.

REFERENCES:
patent: 338783 (1886-03-01), Ritchie
patent: 2363526 (1944-11-01), Hobbs
patent: 3656784 (1972-04-01), Dow et al.
patent: 4468945 (1984-09-01), Fairey

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