Edge folding bending hemming machine

　　What are the potential issues with ultrasonic transducers

　　1. The ultrasonic transducer is damp. Generally, a megohmmeter is used to check the plug connected to the transducer, and the insulation resistance value between the positive and negative poles of the transducer can be checked to determine. Generally, it is required that the insulation resistance be greater than 30 megaohms or above. If the insulation resistance value cannot be reached, it is likely that the transducer is damp. The maintenance method is to place the entire transducer (excluding the spray coated casing) in an oven set at around 100 ℃, dry for three hours or use a hair dryer to remove moisture until the resistance value is normal.

　　2. The transducer oscillator ignites, causing the ceramic material to shatter. During maintenance, a combination of visual inspection and a megohmmeter can be used for inspection. As a general emergency measure, individual damaged transducers can be disconnected without affecting the normal use of other transducers.

　　3. The transducer is detached. We know that most manufacturers use adhesive to fix the transducer, but ultrasonic cleaning machines may experience delamination due to vibration after long-term use. Some manufacturers also use the method of bonding and fastening with screws, which generally does not cause delamination. Due to the action of the screws, the oscillator will not fall off the vibration surface after delamination. The general judgment method is to gently shake the tail of the oscillator by hand and carefully observe the glue situation on the vibration surface to make a judgment.

　　After the ultrasonic oscillator is detached, the output power of the ultrasonic power supply is normal. However, due to poor connection between the oscillator and the vibration surface, the vibration effect of the vibration surface is not good. After a long time, the energy cannot be released, and it is likely to burn out the oscillator. The detachment of the oscillator is quite troublesome for users to repair, and in general, it can only be sent back to the manufacturer for repair and treatment. The effective method to avoid detachment of the oscillator is to be careful not to hit the vibrating surface during normal use.

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