The full hydrogen bell annealing furnace is a discontinuous variable temperature furnace, and the furnace temperature changes with time according to the prescribed heating system. There is a sealing ring between the built-in flange and the flange of the hearth, and a closed space is formed between the inner cover and the hearth by manual compression (or hydraulic cylinder compression), and the workpiece to be processed is placed inside. Vacuum Brazing of Hydrogen Generator Components According to different process stages, the pressure in the furnace and the amount of protective gas in the furnace are controlled by the opening/closing of each intake/exhaust valve on the furnace platform, so as to achieve the quality of the workpiece to be processed and the safety of the equipment.Fault Analysis of Vacuum System of Vacuum Furnaces The protective gas needs to be f
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