It is now known that there are two types of casting sand removal. In ultrasonic casting sand removal, FC gives poor results, while FCD gives relatively good results. FCD (spheroidal graphite cast iron) has a lower attenuation rate of ultrasonic waves compared to FC (filamentous graphite cast iron), and if the ultrasonic waves are strong…続きを読む
Chip seals for scroll compressor compressors have a delicate spiral shape and are often made of PPS. In addition to PPS, various other materials such as PEEK and PTFE are also used. Chip seals always have burrs due to the manufacturing process. Because the chip seal is fitted into the grooves of the fixed and…続きを読む
BlueStar has developed and begun supplying a deburring and cleaning system for precision stamped parts such as leadframes after stamping. The system can be installed in the middle of a reel-to-reel feeder and winder, or in the post-press process. The liquid used should be a hydrocarbon solvent if there is a large amount of mineral…続きを読む
Although we are convinced of the effectiveness of ultrasonic etching, our delivery record is limited. The reason for this is that we have tried to solve minute burrs and slight oxide film on the surface by using powerful ultrasonic waves in pure water. Furthermore, we have not been able to find a mixed acid that…続きを読む
Today, we succeeded in developing a high amplitude and new type of diaphragm. The measured value of the new sound pressure meter exceeded 30 [V]. When an aluminum can touches the surface of the liquid, it splashes violently, and the worker’s clothing becomes soaked. Estimated cavity diameter (microvacuum nucleus group) 12 mmφ. cavity impact force…続きを読む
Ultrasonic cleaning and deburring are performed using water or a water-soluble cleaning agent. Although it would be better if the parts could go directly to the drying process, they often have to pass through a hydrocarbon solvent cleaner. In this case, water must be completely removed and replaced with a hydrocarbon solvent. In this case,…続きを読む