Apparatus for welding with preheated filler material

Details Apparatus for welding with preheated filler material Apparatus for welding with preheated filler material

1997-07-17

1999-09-28

Shaw, Clifford C.

Electric heating

Metal heating

Nonatmospheric environment at hot spot

219136, B23K 9167

Patent

active

059582618

ABSTRACT:
A hot-wire nozzle for feeding pre-heated filler material into a welding groove. The nozzle has a contact tube made of electrically conductive material surrounded by a thin structural outer sheath. The outer sheath is electrically insulated from the contact tube by means of layers of electrically insulating material sandwiched between the contact tube and the outer sheath. The contact tube is configured to feed two or more filler wires simultaneously.

REFERENCES:
patent: 3992603 (1976-11-01), Reynolds
patent: 4110590 (1978-08-01), Batey et al.
patent: 4343983 (1982-08-01), Schneider et al.
patent: 4591685 (1986-05-01), Hinger et al.
patent: 4617444 (1986-10-01), Engelhard et al.
patent: 4639575 (1987-01-01), Asano

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