Method of producing aluminum tube covered with zinc

Details Method of producing aluminum tube covered with zinc Method of producing aluminum tube covered with zinc

1991-10-21

1992-07-28

Rosenbaum, Mark

Metal working

Method of mechanical manufacture

Combined manufacture including applying or shaping of fluent...

29890053, 72262, 427423, 427321, 228164, 228183, 228238, B22D 11126

Patent

active

051331268

ABSTRACT:
A method of producing an aluminum tube covered by a layer of zinc using a continuous cold forming machine which includes the steps of: providing an extrusion die having a heating device and an inert gas-blowing tube to the cold forming machine, introducing an aluminum prime wire to the cold forming machine, extruding the prime wire through the extrusion die to form an aluminum tube while heating the die to a high temperature and blowing an inert gas across the die toward the tube to provide a high-temperature, non-oxidized aluminum tube, and flame spraying zinc powder onto the outer non-oxidized surface of the tube to cover the surface and provide an anticorrosive layer of zinc on the aluminum tube.

REFERENCES:
patent: 4615952 (1986-10-01), Knoll
patent: 4842185 (1989-06-01), Kudo et al.

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