METHOD FOR DISPLAYING FUSION BONDING AT FUSION BONDING ELECTRIC FUSION BONDING JOINT

摘要

PROBLEM TO BE SOLVED: To observe a residual time up to a completion of fusion bonding in a method for fusion bonding by an energy control type electric fusion bonding joint. SOLUTION: The method for fusion bonding at fusion bonding the electric fusion bonding joint comprises the steps of detecting a current of a sensor 7 simultaneously when a current of a constant voltage is supplied to the fusion bonding joint 4 from a power source 3 by turning ON a switch means 5, and calculating an integrated power from the current by a CPU 9. The method further comprises the steps of starting the fusion bonding obtained and then predicting and calculating a ratio of the integrated power to a predetermined integrated power required for fusion bonding and a time up to a predetermined integrated power from a counted-up time after the fusion bonding obtained from a clock mechanism 11.