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hot dipped galvanized oval (elliptical) finned tubes, rectangular fin tubes

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Economizer for Boiler

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Some sugguestion about problems during Galvanizing processing

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.

 
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