Question

The process of heating iron sheets with zinc dust is called:

• A. galvanization
• B. electroplating
• C. electrogalvanizing
• D. none of these

Answer 1

Answer: (D)

none of these

The process of heating iron sheets with zinc dust is called sherardizing.
Prepared iron or steel articles are heated with zinc dust and sand in a slowly rotating drum at a temperature just below the melting point of zinc until the zinc has formed a zinc-iron alloy coating over their surfaces. The coating is very even, matt-grey in appearance and is mainly used for fairly small articles because of the difficulty of heating the contents of large drums evenly.