Four problems lead to weak ultrasonic welding
Many ultrasonic welding machine manufacturers are troubled by the unstable air pressure in the customer's workshop after selling the machine, which leads to the problem of unstable welding. Instability of air pressure is also an important factor in the failure of ultrasonic welding. First of all, the new machine will undergo strict internal testing before it leaves the factory, and it is normal to ship it only after it is confirmed that there is no problem. However, once the machine arrives at the place where the customer uses it, various welding problems will occur, because before the machine is purchased, samples are usually taken to test the machine to ensure that there is no problem with the machine proofreading inspection before shipment. So, when you arrive at the guests, why do you have welding problems? The ultrasonic generator part 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 is found that the instability of the air pressure in the away workshop is caused by the instability of the air pressure in the customer service workshop. The machine can be used normally only when the machine is working normally, and there are problems during normal operation. Therefore, it is judged that the unstable air pressure affects ultrasonic welding. The normal welding of the machine. Because many equipments that need to use gas at the same time during work, plus the gas channel with too long pressure, it will be reduced. The solution is, if a large machine is welding a smaller product, you can try to replace a smaller cylinder, or add a separate air compressor to provide gas for the ultrasonic plastic welding machine.
Insufficient power of the ultrasonic generator is also a factor that leads to welding. Considering that many factories will choose cheap machines when purchasing machines, but one thing that is overlooked is that the ultrasonic power is not large enough and the welding products exceed The area of the welding area can also cause welding failure. The solution is to buy a high-power plastic welding machine as much as possible to ensure future use.
There are many plastic materials that can be welded by ultrasonic. If other materials are added to the materials that can be used with ultrasonic welders, it will also affect the welding fastness, such as adding glass fiber to the PC. Use a single thermoplastic material to solve. The above are the common problems of unstable welding of ultrasonic plastic welders, but other problems will also cause more invisible problems. It is difficult to find if you do not pay attention to this point.
Ultrasonic welding machine seems to have no difficulty. Except for the ultrasonic system, this is actually a wrong view. Although the ultrasonic generator is the core component of the ultrasonic welding machine, it is also a problem with the plastic welding machine frame except for the generator. The frame design is unreasonable and the processing is not precise enough. During the use process, it is likely to directly affect the welding qualification rate of your product. If the mechanical design is unreasonable, the rear of the fuselage will also affect the welding fastness of the product. If the processing is inaccurate and rough, it is impossible to find the equilibrium position of the mold when changing the mold, and it may also cause the welding of the welded product. The solution is to directly replace a better rack, try to do a good job of purchasing before purchasing the machine, and understand the relevant information of the equipment.
