Brazing Furnace Pressure Rising Rate Unqualified Caused by Leaks
I. Seal leakage damage.prior inspecting vacuum brazing furnace door seals, electrode seals, thermocouple seals and other interface seals, generally caused by the water pressure defect because of vacuum brazing seals aging.
II. Vacuum brazing furnace shell welded seam opened caused inner leakage or outer leakage by poor welding quality. If it’s inner leakage,it can’t be detected by a helium mass spectrometer leak detector.
III. Connected heat exchanger leak. The back of vacuum brazing furnace heat exchanger welded by poor quality. It need to separate inspect heat exchanger.
IV. Valve leakage.Vacuum brazing furnace commonly used on the butterfly valve, flapper valves, flapper valves, ball valves, solenoid valves, membrane valves and other valves, valve seals in a unclean environment will easily damage seals,in the polluted environment it should be filtered before entering the valve and pump.