The deoxidation process in vacuum induction melting of Inconel 601 alloy by using of large-scale vacuum induction furnace made in China was studied.The equilibrium values of C-O reactions in liquid alloy were calculated from thermodynamics.The best ranges of parameters having influence on the oxygen content during vacuum induction melting and the quality of rolled sheet were determined by adjusting the parameters of melting process.The results showed that the oxygen content of molten alloy could be controlled to below 10×10-6 and more than 90％of oxygen could be reduced during the melting,when the melting time was prolonged to 365-370 min and the vacuum degree was improved to be above of 1.2 Pa and the initial addition content of carbon was about 0.050％.High purity Ni-base superalloy could be produced by using of 6 t domestic large-scale vacuum induction furnace.
维普
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