Production of longitudinally welded pipe

Details Production of longitudinally welded pipe Production of longitudinally welded pipe

1975-02-10

1977-04-05

Truhe, J. V.

Electric heating

Metal heating

Of cylinders

219105, 219118, 228206, B23K 3106

Patent

active

040163946

ABSTRACT:
In the production of longitudinally welded pipes, the metal strip is treated with a chemical deoxidizing agent, such as a hydrazine compound, to remove oxides from at least the strip edges, prior to arc welding, to provide an improved weld.

REFERENCES:
patent: 2796508 (1957-06-01), Holman et al.
patent: 2892738 (1959-06-01), Dobratz
patent: 2936289 (1960-05-01), Harshman et al.
patent: 3280294 (1966-10-01), Polizzano
patent: 3764548 (1973-10-01), Redmore
The Condensed Chemical Dictionary, fourth edition, Turner ed., Reinhold Publishing Corporation, New York, copyright 1950.

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