First open the adjustment mode: (1) From the front room to the back room, press the forward button F3 of the pushing device until the signal light 1 of the material hook hooked to the material tray lights up, and then press the backward button F4 of the push-pull device to pull the tray out , Vacuum Heat Treatment of Fastenersuntil the material tray reaches the pulling position, the material hook is unhooked [unhook light 2 lights up] press F5 to open the middle door, press F3 to push the material tray into the back room, push it to the position and 4 lights up, the material hook returns to 5, and the middle door Closed, Vacuum sintering of transparent ceramicsthe material hook returns to the original position, and the action stops. (2) The material tray goes from the back room to the front room, firstly raise the lifting platform, Silicon Carbide Reaction Sintering Processpress the F3 material hook to 11, open the middle door, stop the material hook at 4, then press F3, the material hook reaches the 13 grabbing position, Press F4, the material hook reaches 14, close the middle furnace door, the lifting table goes down to the oil tank, and the material hook returns to the original position.Aluminum alloy and stainless steel vacuum brazing