Why is the ultrasonic welding machine's welding unstable? What should I do if the welding is normal for a while and abnormal for a while?
There are many reasons for the unstable welding of the ultrasonic welding machine:
1. Whether the voltage is stable;
2. Whether the air pressure is stable;
3. The frequency deviation of the mold for a long time leads to unstable welding;
4. The machine has been used for a long time, and the internal is worn out;
5. The welding material is not good;
The ultrasonic power is unstable, which mainly depends on the matching of the welding electromechanical box and the transducer and the stability of the electronic components.
If such a problem occurs at the beginning of use, the reasons may be:
1. Insufficient design power;
2. Unreasonable parameter settings;
3. The welding surface of the product and the contact surface of the mold are not flat;
4. There is a problem with the welding machine power supply or transducer or the design is unreasonable;
5. Insufficient welding pressure.
If the above problem occurs several hours after starting normal work, please check:
1. After working for a period of time, the working point drifts and needs to be adjusted;
2. Whether there are changes in welding materials, such as material, thickness, size, etc.;
3. Readjust the welding surface of the product and the contact surface of the mold;
4. The power supply or transducer of the welding machine is damaged;
5. Appropriately increase the welding pressure;
6. Ultrasonic transducer performance attenuation is too large, replace the welding transducer.
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