The reason for the weak welding of ultrasonic spot welding machine---Quanzhou ultrasonic spot welding machine

The reason for the weak welding of ultrasonic spot welding machine---Quanzhou ultrasonic spot welding machine

　　The reason for the insufficiency of the ultrasonic spot welder, what happened when the spot welder failed to weld? There are many reasons why the spot welder cannot be welded. The first is the material being welded. Second, the connected power cord is not thin enough to be welded. The third is that the machine itself is faulty. It mainly checks whether high-current components are burnt out. Also check whether the solder pins are oxidized and have poor contact and whether the spot welding electrodes are short-circuited. ---Quanzhou Ultrasonic Spot Melting Machine

　　The reasons for the weak welding of the spot welder: 1. The current is too small, adjust the current; 2. If the contact is worn too much, please replace or remove the contact to polish the following parts; 3. The air pressure is not enough, check whether the compressor is working properly ; 4. The contact point is not on a horizontal line, resulting in weak spot welding and some weak spot welding. What if the ultrasonic welding is not strong? What if the ultrasonic welding fails? Of course, we must understand that the strength of the ultrasonic welding operation can never reach the strength of single-piece forming, but can only be said to be close to the strength of single-piece forming. The required standard of welding strength must depend on the cooperation of many items. What are these coordinations? With the development of science and technology, many companies have replaced manual welding with mechanization. However, mechanical welding can also cause various problems. One of the problems is that the welding is not strong. However, internal testing will be carried out before leaving the factory. Only after confirming that there is no problem can the goods be shipped. However, why is the welding not strong during testing in the customer's workshop?

　　Today’s editorial will take you to discuss the influencing factors.

　　Ultrasonic welding part of the factors that affect the instability of ultrasonic welding: 1. Unstable ultrasonic welding. The intuitive reason is naturally a design problem. When the frame design of the ultrasonic welding machine is not reasonable and precise enough, although the ultrasonic generator is the core component, the overall frame structure is equally important. Otherwise, the qualified rate of the welded product will be affected during use, or if the processing department is more accurate, I will find the welding balance position when changing the mold, which will cause the product to fail to be welded. The solution is to directly replace the good framework. ---Quanzhou Ultrasonic Spot Melting Machine

　　The second factor affecting the instability of ultrasonic welding: The second factor is the ultrasonic generator itself, because many manufacturers often do not pay attention to the welding area of the ultrasonic welding machine of different products when buying the machine, so when buying a cheap machine, They must only meet the welding area standards of certain products, and when welding other products, because the ultrasonic power is not large enough, they cannot be welded firmly. The solution is to understand the detailed product parameters before buying, and they have purchased some welding machines with the highest power possible.

　　Factors affecting the instability of ultrasonic welding 3: The third factor is the material of the welding product, because if other materials are added to the welding product, it will also affect the firmness of the welding. For example, fiberglass is added to personal computers. The solution is to use some relatively single thermoplastic materials. For example, although we discussed whether ABS and PC are welded to each other, the result of ABS and ABS welding to each other is definitely stronger than the result of ABS and PC welding to each other, because the melting points of two different materials will not be the same, and of course the welding strength will not be the same. the same. ---Quanzhou Ultrasonic Spot Melting Machine

　　Our answer is that welding is entirely possible, but is the strength after welding what we want? Not necessarily. On the other hand, what if the acrylonitrile-butadiene-styrene copolymer is integrated with lotus seeds, polypropylene and polyethylene? If the ultrasonic horn emits 150 degrees of heat instantly, even though the ABS material has melted, nylon, polypropylene and polyethylene will only soften. We continue to heat to above 270 degrees. At this time, the lotus flower, PVC, polypropylene, and polyethylene have all reached the temperature of ultrasonic welding, but the ABS material has been analyzed into another molecular structure! Three conclusions can be drawn from the above discussion: 1. The welding strength of plastics with the same melting point is greater. 2. The greater the difference in melting point of plastic materials, the smaller the welding strength. 3. The higher the density (hardness) of the plastic material, the greater the welding strength than the low density (high toughness).

　　Causes of unstable operation of ultrasonic spot welding machine

　　When using an ultrasonic spot welding machine, the quality of welding products often appears to be unstable, that is, some products are of good quality and some are of poor quality, which is very annoying. In fact, the main reason for this phenomenon is the machine. The output power of the ultrasonic spot welding machine is unstable, which leads to the inability to generate stable frictional heat. So how to keep the output power of the ultrasonic spot welding machine stable? ---Quanzhou Ultrasonic Spot Melting Machine

　　1. The actual available output power of the machine = the output power of the machine + the expansion ratio of HorN. According to the formula, it can be known that maintaining a stable ultrasonic output power is to ensure that the output power of the machine and the expansion ratio of HorN are constant, which requires production The technology of ultrasonic welding has passed. Here we recommend choosing a trusted and well-known ultrasonic plastic welding machine company to be more secure.

　　2. Product design skills, product shape, material, positioning, etc., need to cooperate well with the existing ultrasonic pen, which is also an important factor affecting the stability of ultrasonic product quality.

　　3. During our company's long-term use of ultrasonic spot welding machine, we found a strange phenomenon. When the quality standard is not met within the range of normal working hours, but when everyone is off work and the voltage and pressure are not used by most of the common use, the quality To reach the standard, it can be seen that the voltage and air pressure have a very important effect on the stability of the final product quality of the ultrasonic plastic welding machine. Therefore, it is necessary to ensure the stability of the voltage and air pressure. ---Quanzhou Ultrasonic Spot Melting Machine

　　Finally, it is recommended that when choosing an ultrasonic spot welding machine, buying from a large manufacturer can largely avoid the instability of the product quality caused by the quality of the machine itself.