Reasons why the welding of ultrasonic welding machine is not fast

Why ultrasonic welding is not strong? There are many reasons why ultrasonic welding is not strong. Let's take a look at the reasons why ultrasonic welding is not strong.
A factor that causes the ultrasonic welding to be unstable——air pressure problem
Many ultrasonic welding machine manufacturers are troubled by the problem of unstable welding due to the unstable air pressure in the customer's factory floor after the machine is sold. Unstable air pressure is also an important factor that causes the ultrasonic welding to be unstable. First of all, the new machine will undergo rigorous internal testing before leaving the factory, and it will be shipped normally after it is confirmed that there is no problem. However, when the machine is used by the customer, various welding problems will occur. Before the machine is purchased, the customer will generally take samples to test the machine and make sure that the machine will be shipped after the proofing test is OK. Then why do you reach the customer? There will be a problem of poor welding. The ultrasonic generator has also been repeatedly tested and debugged and no problems have been found. So what is the problem?
After a long period of observation, it was found that the air pressure in the customer's factory workshop was unstable. Only when the machine was off work, the machine was very normal and did not show any welding problems. When the work was normal, the problem appeared again, so we judged that the pressure is not Stability has affected the normal welding of the ultrasonic welding machine. Because there are many devices that use gas when working normally, and the pressure will be reduced when the gas path is too far.
Solution: If the large machine is welding smaller products, you can try to replace the smaller cylinder, or add an independent air compressor to supply air to the ultrasonic welding machine.
The second factor that causes the ultrasonic welding to be unsatisfactory-the frame is not precise enough
The ultrasonic welding machine seems to be a device with no difficulty other than the ultrasonic system. In fact, this is a wrong view. The ultrasonic generator is the core part of the ultrasonic welding machine. In addition to the generator part, there is the problem of the plastic welding machine frame. If the design of a set of frames is not reasonable enough and the processing is not precise enough, it is likely to directly affect the welding qualification rate of your product during use. If the machine design is not reasonable, it will also affect the welding fastness of the product if the machine is tilted back. Also, if the processing is not precise, the balance position of the mold cannot be found when the mold is replaced, so it is also impossible to weld the product.
Solution: directly replace the better rack, try to do the purchase work before buying the machine, and understand the relevant information of the good equipment.
The third factor that causes the ultrasonic welding to be weak——the ultrasonic power is not enough

Insufficient power of the ultrasonic generator is also a factor that leads to weak welding. Considering that many factories will choose cheap machines when purchasing machines, and ignore the point that the processing and use of other products in the later stage of the machine, the ultrasonic power is not large enough, and the area of ​​the welding product If it exceeds the welding range, it will also result in weak welding.
Solution: Try to buy a high-power plastic welding machine to ensure subsequent use.
The fourth factor that causes the ultrasonic welding to be unsatisfactory——the problem of plastic material itself
There are many plastic materials that can be welded by using ultrasonic waves. If other materials are added to the materials that can be welded by ultrasonic waves, the welding fastness will also be affected. For example, the addition of glass fibers to the PC will affect the fastness of the entire welding.
Solution: Use a single thermoplastic material.
The above is a common problem that the ultrasonic plastic welding machine does not weld well, but other problems are also caused. These are all relatively invisible problems. It is difficult to find if you do not pay attention.
The fourth factor that causes the ultrasonic welding to be unsatisfactory——the problem of plastic material itself
There are many plastic materials that can be welded by using ultrasonic waves. If other materials are added to the materials that can be welded by ultrasonic waves, the welding fastness will also be affected. For example, the addition of glass fibers to the PC will affect the fastness of the entire welding.
Solution: Use a single thermoplastic material.
The above is a common problem that the ultrasonic plastic welding machine does not weld well, but other problems are also caused. These are all relatively invisible problems. It is difficult to find if you do not pay attention.

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