HYDROGEN REDUCING METHOD OF SUBMERGED ARC WELDED METAL OF STEEL

HYDROGEN REDUCING METHOD OF SUBMERGED ARC WELDED METAL OF STEEL

PURPOSE:To reduce diffusible hydrogen of a weld metal to very low level and heighten crack resistance of welded joint by specifying the position of the tip of a nozzle and angle of inclination, and blowing inert gas into the arc opening at a specified flow rate. CONSTITUTION:A heat resisting materia...

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1. Verfasser: TAKAMI TOSHIHIKO
Format: Patent
Sprache:eng
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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creator TAKAMI TOSHIHIKO
description PURPOSE:To reduce diffusible hydrogen of a weld metal to very low level and heighten crack resistance of welded joint by specifying the position of the tip of a nozzle and angle of inclination, and blowing inert gas into the arc opening at a specified flow rate. CONSTITUTION:A heat resisting material is used for a gas blowing nozzle 1. The tip of the gas blowing nozzle 1 is positioned within 15mm. in front of the electrode arc generating point in the direction W of advance of welding, and less than 15mm. above the weld line. The gas is blown at an angle of more than 10 degrees to the horizontal. The gas used is high purity and low dew point inert gas commonly obtained industrially such as Ar, He. The gas is blown into the arc opening 2 at a flow rate of 1-10l/min.
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subjects 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
title HYDROGEN REDUCING METHOD OF SUBMERGED ARC WELDED METAL OF STEEL
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