Flash butt welder for joining flat strip ends

Details Flash butt welder for joining flat strip ends Flash butt welder for joining flat strip ends

1982-09-20

1984-12-18

Albritton, C. L.

Electric heating

Metal heating

For bonding with pressure

219 97, B23K 1104

Patent

active

044892292

ABSTRACT:
In a flash butt welder for joining strip ends, the improvement for improving the quality of flash butt welds made in specialty grade steels, such as high strength low alloy, as well as for considerably reducing the upset current requirement, by applying a protective atmosphere of combustible gas, such as propane, natural gas, or hydrogen during the flash butt welding process. Welds free from any detectable defects can be made with lower upset current densities thus extending the equipment welding capacity.

REFERENCES:
patent: 2286212 (1942-06-01), Gorn
patent: 2719207 (1955-09-01), Moyer
patent: 2794111 (1957-05-01), Seeloff et al.
Cary, Howard B., Modern Welding Technology, (1979), pp. 361, 363-364.

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