Common problems of transducer in ultrasonic cleaner

The common problems of transducer of ultrasonic cleaning machine are as follows: ⑴ the transducer is damp Generally, use a megger to check the plug connected with the transducer, and check the insulation resistance between the positive and negative poles of the transducer Generally, the insulation resistance is more than 30 megohm If the insulation resistance is not reached, it is likely that the transducer is damped The maintenance method is to put the whole transducer (excluding the plastic spraying shell) into the oven and set it at about 100 ℃, dry it for three hours or use the electric blower to remove the moisture until the resistance value is normal The transducer vibrator ignites and the ceramic material breaks It can be checked with naked eye and megger during maintenance Generally, as a measure of emergency treatment, the damaged transducer can be disconnected without affecting the normal use of other transducers (2) the transducer is degummed We know that most of the manufacturers use adhesive to fix the transducer, but after long-term use of the ultrasonic cleaning machine, due to the vibration, there will be degumming phenomenon There are also manufacturers that adopt the way of cementation and screw fastening, generally there will be no degumming Due to the role of screws, the vibrator will not fall off the vibration surface after degumming The general judgment method is to gently shake the vibrator's tail by hand, and carefully observe the glue situation on the vibration surface to make a judgment (3) generally, the output power of ultrasonic power supply is normal after the degumming of vibrator, but the vibration effect of the vibration surface is not good due to the poor connection between the vibrator and the vibration surface After a long time, because the energy cannot be released, it is likely to burn out the vibrator The degumming of vibrator is troublesome for the user to maintain Generally, it can only be sent back to the manufacturer for maintenance The effective way to avoid the degumming of vibrator is to pay attention not to impact the vibrating surface in normal use (4) the vibration surface is perforated Generally, the ultrasonic transducer may be perforated after several years of full load use, which is caused by the long-term high-frequency vibration fatigue of the stainless steel plate on the vibrating surface The perforation of the vibrating surface indicates that the service life of the transducer has reached, and the transducer can only be replaced in maintenance.