CONTROLLO DELL' ATMOSFERA INERTE DI UN SISTEMA DI SALDATURA A PRESSIONE CON RISCALDAMENTO PER INDUZIONE

CONTROLLO DELL' ATMOSFERA INERTE DI UN SISTEMA DI SALDATURA A PRESSIONE CON RISCALDAMENTO PER INDUZIONE

A method and apparatus is disclosed for purging air from multiple surfaces of members to be welded together. The apparatus includes a hood with the inert gas entering the hood at about 150 cubic feet per minute at between 2-5 pounds per square inch gauge when handling approximately 21/2 inch diamete...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MOELLER RICHARD E, BROLIN CHARLES A, JENNERJOHN DENNIS A
Format: Patent
Sprache:ita
Schlagworte:
CLADDING OR PLATING BY SOLDERING OR WELDING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
SOLDERING OR UNSOLDERING
TRANSPORTING
WELDING
WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:A method and apparatus is disclosed for purging air from multiple surfaces of members to be welded together. The apparatus includes a hood with the inert gas entering the hood at about 150 cubic feet per minute at between 2-5 pounds per square inch gauge when handling approximately 21/2 inch diameter tubes. The gas is first evenly spread in the hood to fill the entire cross sectional area thereof and is then moved through a straightening section to provide laminar flow of the gas across the multiple surfaces. An induction coil is moved between hood closure means into the hood to heat the weldable surfaces to a bonding temperature and after the coils have been removed from the hood, the members are urged together to upset the heated surfaces to weld the two members together.