High speed steel roll

The microstructure of HSS rolling mill shows that fine dispersed carbides of MC and M6C are embedded in martensite. The high speed steel rolling mill has excellent wear resistance, thermal hardness, and thermal fatigue resistance. 1. Regarding the rolling mill: Due to the high temperature of steel, the rolling mill should have relatively high strength and biting ability, moderate wear resistance and accident resistance, thereby increasing the failure rate. 2. Regarding the intermediate frame: As the hole type changes, the temperature of the steel decreases, and we should pay more attention to the uniformity between the groove bottom and both sides. The rolling mill should have relative strength, relatively high resistance to fire cracking, and wear resistance. 3. Precision rolling stand: During this period, the temperature of the steel is at its lowest, the speed of the rolling mill is relatively fast, and the rolling capacity is relatively small to ensure the surface quality and quantity of the steel product. We will focus on moderate hardness, hardness uniformity, and hardness reduction to ensure that the wear resistance points of each pass are the same, thereby increasing the quantity and quality of rolled products, reducing steel costs, and improving economic efficiency.

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