Fault of CEFI medium frequency induction heating furnace in producing aluminum alloy wire-rod on continuous-properzi continuous casting-rolling line was analyzed.During producing six series aluminum alloy wire-rod

induction heating furnace exists in some problems including frequent trip and silicon controllable breakdown when induction heating furnace preheats the billet

leading to a serious safety problems.Through analyzing the fault mechanism of induction heating furnace

the structure of the furnace was modified

avoiding the frequent trip and silicon controllable breakdown

realizing the accuracy and stable operation as well as ensuring the quenching effects of wire-rod.The aluminum alloy wire-rod exhibits acceptable strength and plasticity after ageing treatment.