Under what conditions will the iron box rust?

Tinplate is also known as tin, tin-iron tires, under the action of water, oxygen, carbon dioxide, the primary battery reaction, because the iron is stronger than tin, the iron is corrosion of the cathode, sacrificing iron to protect the tin , accelerate the corrosion of iron.

There is no special way to prevent the tinplate from being corroded. You can brush oil or anti-rust paint on the outside of the tinplate, but you must not break the skin of the tinplate.

Tinplate iron box embroidery removal method:

Rust removal (underline treatment)→washing→flash plating replacement copper→water washing→mechanical galvanizing deposition transition bottom layer→mechanical galvanizing deposition→water polishing→parts pouring separation→hot water washing (or chromium passivation on the surface of required parts) Dip related protective layer) → dry and dry → test acceptance