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Regarding hot dip galvanising dross formation

Regarding process of hot dip galvanising please explain difference among top dross, bottom dross and zinc ash (wet flux process) and their source of formation and how to control them.

A Kothia
- Biratnagar, Morang, Nepal
2003

Hopefully someone will answer you soon, cousin Kothia. But we've found that the readers are more disposed to help inquirers who pose their questions in terms of their own real-world situation, so we urge you to please tell us what is going on. Thanks!

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Need quick confidential answers? $25
Need project assistance? $100/hr.
2003

Bottom dross is formed due to reaction of free iron particles on the strip and reaction of Zn with the iron of kettle,,,,
Top dross is formed due to oxidation of Zn due to contact with air,,,,

D K Jain
- NOIDA, UP, India
February 3, 2011

adv.
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