The invention discloses a combined electric appliance
flange glue filling sealing detection method. The method comprises steps that S1, a
flange surface is cleaned, and the
flange surface to be irradiated by ultrasonic longitudinal
waves is guaranteed to be a plane; S2, the flange surface is irradiated by the ultrasonic longitudinal
waves after being cleaned, and the flange surface receives
colloid bottom echos; and S3, glue filling construction quality is determined through
colloid bottom echo conditions, on the condition that glue filling quality is good, three times of
colloid bottom echos are generated; under glue shedding conditions, one time of colloid bottom echos is generated, and echo heights can reduce to 40-60%; under the condition of no glue filling, no colloid bottom echo is generated. Through the method, an angle of an
ultrasonic sensor can be adjusted to make the ultrasonic longitudinal
waves irradiate the flange surface in a
vertical angle, multi-time reflection characteristics of the ultrasonic longitudinal waves in a glue filling sealing area colloid are utilized, detection on the
high voltage combined electric appliance glue filling areas is carried out, and the position and areas of non-filled, glue-shedding and perfect areas can be determined.