Heat treatment of welds

Details Heat treatment of welds Heat treatment of welds

1977-11-25

1979-07-10

Dost, Gerald A.

Metallurgical apparatus

Means treating solid metal

By contact with gas

266258, 266259, C21D 110

Patent

active

041605438

ABSTRACT:
Apparatus for heat treating the weld and heat affected zone between a steel pipe and a steel connector, the apparatus including an induction coil to heat the weld and weld heat affected zone to a selected temperature. A ring shaped manifold having nozzle means to direct flow outwardly is connected with pumping means to pump gas simultaneously against the interior and exterior of the weld and heat affected zone.

REFERENCES:
patent: 2009078 (1935-07-01), Ziska
patent: 2218958 (1940-10-01), Nelson
patent: 2288038 (1942-06-01), Somes
patent: 2556236 (1951-06-01), Strickland
patent: 2623836 (1952-12-01), Noren
patent: 3294599 (1966-12-01), Huseby
patent: 3407099 (1968-10-01), Schell
patent: 3458922 (1969-08-01), Schellstede et al.
patent: 3622138 (1971-11-01), Kostyal

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