Summary for galvanizing at point of bend Discussion
Galvanizing at point of bend is the issue here: Asif Ahmad asked how to stop zinc from peeling off 8 mm rods that must be bent after galvanizing to 240 degrees. The only answer in the thread came from Scott Packard, who suggested applying moderate heat at the bend point just before and during bending so the zinc can soften and flow with the metal. He cautioned that this may still leave the outer radius of the bend with a thinner coating. The discussion does not offer a guaranteed fix or a professional process specification, but it points toward controlled heating during bending as a practical way to reduce flaking.
Q. We have an order for galvanizing 8mm rods. The rod needs to be bent after galvanizing at 240 degrees. At present ,the zinc at the surface is peeling off at the point of bend. How do we avoid this.
ASIF AHMAD
PLATING SHOP – CALCUTTA, WEST BENGAL, India
2004
A. I’m not a professional at all, but can I suggest you apply some moderate heat at the point of the bend just prior to and during the bending? The goal would be to allow the zinc to soften and “flow” around the base metal during the bending process. You may still end up with too thin a coat on the outer radius of the bend.
Scott Packard
– Alhambra, California, USA
2004
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