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.


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    Title :

    How ultrasonic energy improves pretreatment


    Additional title:

    Wie die Ultraschallenergie die Vorbehandlung verbessert


    Contributors:


    Publication date :

    1988


    Size :

    5 Seiten, 3 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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