ELECTRODE FOR WELDING OF HEAT-RESISTANT STEEL Russian patent published in 2014 - IPC B23K35/30 B23K35/365 

FIELD: metallurgy.

SUBSTANCE: invention can be used at manual arc welding of structures in chemical machine building from steels of 2.25%Cr-1%Mo-0.25%V composition. Electrode consists of the rod from alloyed steel 2.25%Cr-1%Mo-0.25%V and coating including the following components (in wt %): marble 30.5-56.0, fluor-spar concentrate 20.0-33.0; titanium dioxide 14.0-20.0; quartz sand 4.0-10.0; ferrosilicon 1.0-3.0; metal manganese 0.5-3.0; ferrotitanium 6.0-12.0; soda ash 0.5-2.5. Sodium-potassium liquid glass in amount of 23-32% of dry stock weight is used at production of electrodes.

EFFECT: high resilience of weld metal, higher strength and plastic properties.

2 cl, 4 tbl