Ultrasonic energy, when applied to immersion stages of cleaning and phosphating in pretreatment lines, can improve the zinc phosphate coating in hard to reach areas. It also has the theoretical potential to increase the speed of cleaning and phosphating, thus shortening the prepaint line. To be successful, the ultrasonic application must be carefully designed to fit the process, the workpiece, and chemistry of the cleaning and phosphating baths. Some of the critical ultrasonic variables are discussed.
How ultrasonic energy improves pretreatment
Wie die Ultraschallenergie die Vorbehandlung verbessert
1988
5 Seiten, 3 Quellen
Conference paper
English
Automotive plastic pretreatment
British Library Conference Proceedings | 1991
|Online Contents | 1994