Badge related knowledge
Tinplate is an iron sheet coated with a layer of tin on the surface. It is not easy to rust. It is also called tin-plated iron. The iron sheet is immersed in molten liquid tin. It is produced by Zhongyi. Tin is a metal that is inactive than iron. It is neither oxidized by air nor reacted with water, so it has quite strong corrosion resistance. A thin layer of tin on the iron sheet can provide good protection, but Once the plating layer is destroyed and electrochemical corrosion occurs, because iron is more active than tin, iron will be used as the negative electrode of the galvanic battery and will be lost due to oxidation reaction. The presence of tin will accelerate the corrosion rate of iron. Therefore, tinplate is different from white iron. The iron can be protected only when the coating is intact.
Tinplate badge regular size
Round: 18MM, 20MM, 25MM, 30MM, 32MM, 35MM, 38MM, 40MM, 44MM, 50MM
55MM, 56MM , 58MM, 65MM, 75MM, 100MM, 160MM (diameter)
Heart Shape: 43*38MM