Research on Heat Treatment Technology for High-end Special Steel Cutting Circular Blades
The research status of the process technology of cutting circular blades both domestically and in-ternationally was reviewed.Cr12Mo1V1 steel was used as the blade matrix material and the heat treatment process was studied based on the characteristics of high-end special steel cutting circular blades.The re-sults showed that the cutting circular blade had better mechanical properties after air-cooled quenching.The optimal heat treatment process for cutting circular blades of Cr12Mo1V1 material was determined as fol-lows:annealing heating to 790℃ for 2 h,cooling to 500℃ in the furnace,and then air cooling out of the furnace;the quenching process was divided into three stages,first heating to 600℃ for 0.5 h,then heating to 850℃ for 0.5 h,finally heating to 1050℃ for 1 h,and air cool to room temperature;the one time tem-pering process was 200℃ × 2 h,cooled to room temperature with the furnace,the secondary tempering process was 480℃ × 2 h,cooled to room temperature with the furnace.
high-end special steel slitting round bladeCr12Mo1V1 steelheat treatmentair cooling quenchingstrength and toughness