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Preece test for galvanized steel wire

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12 years 10 months ago #874 by Archived Forum Admin
Preece test for galvanized steel wire was created by Archived Forum Admin
Dear All,

I have problem on Preece test( copper sulfate test) for galvanized steel wires. Some wire rods give good results but some of them give bad results. (Some red points on the wire after test according to EN 50189 std.) Do you have any ideas about what affects Preece test?
Best regards

Murat

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12 years 10 months ago #875 by Archived Forum Admin
Replied by Archived Forum Admin on topic Re: Preece test for galvanized steel wire
Check the flux , the zinc ammonium chloride, it is usually the cause of the red appearance on the wire.
when is not the right quality or gets damaged by acid drag from the cleaning baths.

Eduardo Anaya
Senior Consultant
INDEPA S.C.
Mexico City
Tel(011-52)555-407-7451
This email address is being protected from spambots. You need JavaScript enabled to view it.

chemicalland21.com/industrialchem/inorga...ONIUM%20CHLORIDE.htm

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