Stove the furnace:Advantages of vacuum sintering of cemented carbide (1) Check the water level of the heating furnace. The liquid level gauge shows that the liquid level is between 40 and 70 (1/2 to 2/3 of the heating furnace). If the water level is lacking, fill the furnace with water and flush the level gauge at the same time.Differential ring gear vacuum heat treatment (2) Check the pressure regulating valve to ensure that the pressure of the gas supply line is within a suitable range (about 1 kPa).Vacuum annealing process of automobile half shaft 3) Turn on the power switch of the temperature control box and press the burner start button.Vacuum Heat Treatment and Nitrocarburizing of Hot Work Die Steel 4Cr5MoSiV1