​Ten Common Sense Of Ultrasonic Welding Machine

​Ten Common Sense Of Ultrasonic Welding Machine

Date:Mar 31, 2021


Ten common sense of ultrasonic welding machine


Ultrasonic welding equipment is a high-tech technology for welding cooked plastic products. All kinds of cooked plastic parts can be processed by ultrasonic welding. When welding plastic products, neither add any adhesive, filler or solvent nor consume a lot of heat. , It has the advantages of simple operation, fast welding speed, high welding strength and high production efficiency. Therefore, ultrasonic welding technology is more and more widely used.


Common sense one:

After the ultrasonic welding machine is switched on (turned on), it cannot be put into use immediately. Wait two minutes to test the ultrasound before it is normal, and then put it into use.


Common sense two:

The ultrasonic welding head (upper die) cannot pass the test appraisal during inspection, please do not continue to use it! Otherwise, expensive components such as amplifiers, transducers, etc. will be burned out!


Common sense three:

Ensure that the compressed gas provided is dry and clean. Regularly check whether the inside of the filter on the back of the ultrasonic welding machine is clean (if there is oil, please clean it). Before replacing the ultrasonic welding head (upper mold), check whether there is oxide (usually black or white substance) in the connection position. If there is, please use 800 (or finer) sandpaper to polish it off and wipe it clean with alcohol. Can be installed; during installation, it must be assembled and fastened without any looseness.


Common sense four:

Ensure that the compressed gas provided is dry and clean. Regularly check whether the inside of the filter on the back of the ultrasonic welding machine is clean (if there is oil, please clean it).


Common sense five:

Ultrasonic welding head (upper die) can pass the ultrasonic test, but there is heat during use, no matter how busy you are, you must stop using it and wait for its natural conditions to cool down before you can continue to use it; if there is heat within half an hour to two hours, it must be Replace it.


Common sense six:

For plastic parts with non-special structures (materials), please adjust the "delay time" to the moment before the ultrasonic welding head (upper mold) touches the plastic parts. [If only the reaction force triggers the ultrasonic system, please adjust the switch to the minimum power trigger point.


Common sense seven:

The power supply range should be within 5% of 220VAC. At the same time, it is necessary to use a stabilized power supply for the metal part of the ultrasonic welding machine shell (usually double grounding).


Common sense eight:

If you hear abnormal noises when welding plastic parts, please stop working and check whether the ultrasonic welding head (upper die) amplifier transducer has cracks or whether they are in good contact with each other. If there are cracks, they must be replaced; if there is any looseness, please face each other. Tighten.


Common sense nine:  

It is not advisable to hold down the detection button for a long period of time to detect the ultrasonic mold frequency; when adjusting the frequency, do not adjust the frequency knob while holding down the ultrasonic testing button.


Common sense ten:

The frequency of each ultrasonic welding head (upper mold) must be adjusted before use. As long as it is no longer necessary to adjust the frequency one by one when changing between the molds made by myself, only the frequency of the first mold needs to be adjusted. It is strictly forbidden to adjust the frequency during the continuous use of the ultrasonic upper mold after the frequency is adjusted and determined.


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