FUSING AGENT FOR WELDING AND ELECTROSLAG REMELTING Russian patent published in 2002 - IPC

FIELD: welding technology. SUBSTANCE: fusing agent contains, wt %: alumina 20-25, calcium oxide 5-8, mixed zirconium and hafnium oxyfluoride 2-5, and calcium fluoride - the balance. Sources of calcium fluoride and zirconium and hafnium oxyfluorides utilized are leaching products of zircon cake, potassium silicofluoride, and potassium chloride. Microalloying and modifying metal to increase corrosion and mechanical properties thereof is also possible. EFFECT: improved quality of surface of welded metal and high-temperature conductance stability of fusing agent. 2 cl, 2 tbl