Shroud canister

Details Shroud canister Shroud canister

1997-03-11

1999-04-20

Hail, III, Joseph J.

Metal deforming

With exposure of work to gas, vapor, mist, or modified...

722531, 72271, B21B 900

Patent

active

058947515

ABSTRACT:
A shroud canister for reducing the oxidation of extruded metal in an extrusion press. The shroud canister introduces a relatively inert substance which is gaseous at standard temperatures and pressures into the bore of the platen of an extrusion press, confines the relatively inert substance with the bore of the platen, and precludes any of the relatively inert substance which is in liquid form from coming into contact with the extruded metal. In one embodiment, the shroud canister consists of a faceplate to be attached to the platen of the extrusion press, a fluid supply tube to inject the relatively inert substance into the bore of the platen, and a shield to preclude any of the relatively inert substance which is in liquid form upon leaving the fluid supply tube from coming into contact with the extruded metal. A second embodiment consists of a cylindrical canister having one or more product apertures for the extruded metal and a main relatively inert substance supply cavity communicating with secondary relatively inert substance supply cavities to inject the relatively inert substance into the product apertures.

REFERENCES:
patent: 3342055 (1967-09-01), Blankenship et al.
patent: 4829802 (1989-05-01), Baumann

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