AGGLOMERATED FLUX MATERIAL FOR AUTOMATIC WELDING CORROSION-RESISTANT STEEL Russian patent published in 2009 - IPC B23K35/362 

FIELD: welding.

SUBSTANCE: invention can be used for automatic welding corrosion-resistant steel using austenitic welding wires. The flux material contains the following, in wt %: electrocorundum 23-29, fluorspar 65-69, barium fluoride 3.0-3.5, aluminium-magnesium powder 1.8-2.0, ferrotitanium 0.5-3.2, sodium-potassium silicate 6.1-7.5. Total content of ferrotitanium and aluminium-magnesium powder should be in the interval 2.5-5.0. The invention improves welding-processing properties of agglomerated flux material due to reduction of viscosity of slag and increases technological capabilities of the flux material by obtaining a good form of weld, including smoothness of coupling the joint with the base metal.

EFFECT: weld metal, obtained using the flux, has high strength, particularly resistance to high-temperature cracking and high impact energy at temperature of +20°C.

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