2024-02-19
Tinplate-How is Tinplate Processed?
Since the 1940s, tin is applied to the steel sheets electrolytically. Before that, tin was applied through hot dipping. Tinplate production is the major use of tin and uses 30% of all tin produced. By 2018, 30% of all tin production was from recycled sources.Electrolysis has the advantage of achieving thin tin coatings and controlling the thickness of coating. This is important as coating thickness can vary on the two sides of the steel sheet to produce ‘differential coated tinplate’. Modern tinplate has tin coatings that are only 0.1 to 1.5 microns thick.