FLUX FOR MECHANIZED WELDING AND OVERLAYING OF STEELS Russian patent published in 2018 - IPC B23K35/362 

FIELD: metallurgy.

SUBSTANCE: flux contains liquid glass as a binding agent and is made in form of granules with size 0.45-2.5 mm at the following ratio of components, wt %: silicon manganese production slag 60-85; liquid glass 15-40. Silicon manganese production slag has a fraction of less than 0.45 mm and contains, wt %: SiO₂ 25-49, Al₂O₃ 4-28, CaO 15-32, CaF₂ 0.1 -1.5, MgO 1.7-9.8; MnO 3-17; FeO 0.1-3.5; S≤0.20; and P≤0.05.

EFFECT: improvement of mechanical properties of weld seam and reduction of welds seam rejection level.

1 cl