There is an abundance of literature devoted to the topic of biological effects on metal structures, especially as it relates to corrosion of in-service goods. Little is said, however, of the effects or control of bio-contaminants during surface finish processing. Biological contamination in tankline processes affect part quality, cycle time and worker safety. The processes affected are varied and occur in both high and low pH conditions. The organisms of bio-contaminants have been observed to be fungal (alternaria, fusarium and Penicillium) and bacterial (pseudonomas). Case studies of several processes are provided: Magnetic particle inspection, boric-sulfuric acid anodizing, and acid and alkaline etch rinsing. Process descriptions, deleterious effects and summary cause analyses are provided along with the found remedy, required engineering testing and implementation results.
Bio-contamination control in metal surface finishing operations
2002
16 Seiten, 7 Bilder, 21 Quellen
Conference paper
Storage medium
English
Alkalibehandlung , anodische Oxidation , Arbeitssicherheit , Auskleidung , Bakterien , biologische Korrosion , biologische Wirkung , Borsäure , Fallstudie , Film (Dünnschicht) , Flugzeug , Kontamination , Magnetpulverprüfung , Metall (Werkstoff) , Oberflächenangriff (Korrosion) , Oberflächenveredlung , pH-Einfluss , Pilz , Säureätzung , Schwefelsäure , Tank
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