Hot Dip Galvanizing: Difference between revisions
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=Howto= | |||
#Sand blast | #Sand blast | ||
#Base bath - 10 minutes min | #Base bath - 10 minutes min | ||
Revision as of 21:27, 16 September 2020
Howto
- Sand blast
- Base bath - 10 minutes min
- Base bath - 7 minutes min
- Flux - ammonium
- Actual dip - 3.5 minutes (until base metal reaches melt temp of 835F)
- Water - trapped water explodes, and is dangerous, so first dip is dangerous and venting must be assured.
- Zinc - 2400 lb blocks are the feedstock for hot dip baths. This is only 0.1 cubic meter - or 4 cubic feet.
https://www.aisc.org/globalassets/modern-steel/archives/2014/08/2014v08_galvanizing.pdf
More about surface preparation: [1]