Effects of continuous hot-dip galvanizing on zinc coatingsFunded under: FP4-BRITE/EURAM 3
This project has investigated the development of continuous hot-dip galvanizing. Such production methods are important in the automotive industry where it is necessary to manufacture hot-dip galvanized sheets for external bodywork. The galvanizing process involves the sheets being dipped in zinc baths. However through the continuous hot-dip galvanizing process, factors affecting the zinc coating are unknown. This project has investigated the influence of cleanness (during the cleaning mode) and the influence of the dew point of the annealing atmosphere on the zinc coating formation. The best cleaning results were reached by alkaline spraying and electrolyte degreasing treatment. A higher dew point in the annealing atmosphere and a higher Fe-content in the zinc-melt results in an acceleration and an irregular formation of FeZn-phases during galvanizing.
Bibliographic Reference: EUR 18425 DE (1998) 129pp.
Availability: Available from OOPEC Sales agents
ISBN: ISBN 92-828-4647-4
Record Number: 199910048 / Last updated on: 1999-02-18
Original language: de
Available languages: de,en,fr,de