METHOD FOR ELECTRIC ARC WELDING BY SUBMERGED NON-CONSUMABLE ELECTRODE

METHOD FOR ELECTRIC ARC WELDING BY SUBMERGED NON-CONSUMABLE ELECTRODE

electric arc gas-shield welding by non-consumable electrode for making constructions with mean and high thickness from active metals such as titanium, aluminum and magnesium alloys in different industry branches. SUBSTANCE: method comprises steps of feeding gas forming electric arc and plasma, stabi...

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1. Verfasser: ASTAF'EV A.G
Format: Patent
Sprache:eng ; rus
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 ASTAF'EV A.G
description electric arc gas-shield welding by non-consumable electrode for making constructions with mean and high thickness from active metals such as titanium, aluminum and magnesium alloys in different industry branches. SUBSTANCE: method comprises steps of feeding gas forming electric arc and plasma, stabilizing gas and shielding gas simultaneously by three separate fluidic streams; forming annular streams by imparting to each stream rotation around electrode axis along helix in the same direction by different twisting angles and with different gas emission rates increased from inside to outside; additionally orienting outer shielding stream around welding bath by means of protective nozzle; after termination of welding cutting off gas streams according to next order: at first electric arc-plasma forming and stabilizing gas stream, then outer shielding stream. It allows to use simple sharpening contours of tungsten electrodes. EFFECT: enlarged manufacturing possibilities of welding process, increased fusion depth at less welding current, improved structure, mechanical properties and geometry parameters of welded joint. 1 dwg
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language eng ; rus
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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 METHOD FOR ELECTRIC ARC WELDING BY SUBMERGED NON-CONSUMABLE ELECTRODE
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