Hot Dip Galvanizing: Difference between revisions
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*Zinc Ammonium Chloride - used as flux - [https://en.wikipedia.org/wiki/Zinc_ammonium_chloride]. Zaclon in Ohio makes it. [https://www.zaclon.com/zaclon-galvanizing-products] | *Zinc Ammonium Chloride - used as flux - [https://en.wikipedia.org/wiki/Zinc_ammonium_chloride]. Zaclon in Ohio makes it. [https://www.zaclon.com/zaclon-galvanizing-products] | ||
*Coating thickness for 1/4" and above steel is 85 microns minimum. [https://en.wikipedia.org/wiki/Hot-dip_galvanization#Process] | *Coating thickness for 1/4" and above steel is 85 microns minimum. [https://en.wikipedia.org/wiki/Hot-dip_galvanization#Process] | ||
=Process= | |||
[[File:hotdip.png|500px]] | |||
=Howto= | =Howto= | ||
Revision as of 23:00, 11 February 2021
About
- Kettles - copper causes premature kettle failure.
- Kettle manufacturer - [1]
- Materials engineered for use in galvanizing operations - the specific property required is
- Wikipedia - [2]
- Zinc Ammonium Chloride - used as flux - [3]. Zaclon in Ohio makes it. [4]
- Coating thickness for 1/4" and above steel is 85 microns minimum. [5]
Process
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: [6]
Sourcing
- Acid -
- Base - KOH pr NaOH for grease - [7], NaOH doesn't require hot water.
- Ammonium chloride - $2/lb [8]
Zinc Ingots
See Zinc#Sourcing
- [9]
- Carter Alloys, 2" zinc balls [10]
- ACI - [11]
- Ney - [12]
- Industrial Metal Supply - [13]. Do they have ingot?
- Victory - [14]
- Milward - [15]
- Umicore - [16]
- Belmont Brooklyn - [17]
- AEM says zinc - [18]
- Ingots on Thomas Register - [19]
- Zinc Ingot on Thomas Register - [20]
- Zinc on Thomas Register - [21]