Some advise for galvanizing processing during production of Hot dipped hot dipped galvanized oval (elliptical) finned tubes, rectangular fin tubes :
Sometimes, during galvanizing processing of finned tubes, it may happens that galvanizing layer is not even. Some place no zinc covered, while another places too much zinc spots. It is not a big question. From Magvant's production experience, we give below suggestion for your reference:
At first, put oval fin tubes into alkaline solution more than 1 hr. Before lifting, worker in charge should make sure no oil outside of fin tubes.
Secondly, after dipped in alkaline solution, put in air for 2 or 3 hrs.
Thirdly, put in acid solution 2 or 3 hrs, a little longer will be better.
Following above advise, you can check if the galvanizing problem is solved in next production. Welcome for Technical communicationwith Magvant. |
