Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
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Pretreatment of areas where welding or grinding remove galvanizing
I am using Electrogalvanized sheet for making enclosures. The spec is EN 10152 Ze 25/ZE 25 , commercial grade. I have problems with some components which undergoes welding and grinding on the corners / edges of the components.The grinding removes the zinc coating on the components.I want to know the method of treating the exposed ground areas.What will passing hours in salt spray then?
Ramadoss RajaSheet steel enclosures - Chennai, TamilNadu and INDIA
2006
I am no expert in this area, especially QC Testing; however, in the manufacture of galvanized welded tubing there is a spray process that applies galvanizing to the welded area. How well this process hold up to testing is unknown to me, but I suspect the industry would not use it if it wasn't very effective.
AF Kenton
retired business owner - Hatboro, Pennsylvania
2006
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