Cause Analysis and Countermeasure of Early Failure in Corrugated Furnace Top Pressure Die

Through the detection for chemical composition and microstructure of Cr12 type steel of corrugated furnace die,the reasons for early failure caused by wear and cracking were analyzed, and in view of the above reasons, a new improved technology of heat treatment that high temperature solution and double refine treatment plus isothermal quenching process was put forward. The results show that since the process is used in production, the strength and toughness of the die improve significantly, and the product quality is stable. Service life is increased by 2.5 times and the better result is remarkable.