Many product packaging boxes are now made of iron. Iron is a relatively lively metal. It ranks ahead of hydrogen in the order of metal activities. Therefore, iron is easy to rust, and the rust of tinplate boxes is a chemical reaction. When iron products are exposed to the air for a long time, the oxidation of oxygen will rust. In order to prevent the iron box from rusting, we will galvanize and paint the iron material to prevent oxidation and corrosion. Protect the iron box from acid and alkali corrosion, and protect the iron box from pollution. In order to effectively prevent the tinplate box from scratching the surface or scraping off the coating, the scratched area is easy to rust.
If the tinplate box has rusted, you can’t scrape off the rust first, then use a rust remover to wipe the rag clean, remove the rust after removing the rust, and apply a layer of varnish or similar paint film. You can also use a cloth with vinegar to wipe the rusty area. The principle is that acetic acid will react with iron oxide (rust). To remove rust, you can use various tools to shovel it away, or soak it in an acidic solution to dissolve it. After removing the rust, be sure to treat the surface of the ironware, apply a layer of lead red, and then paint; or plate other metals that are not easy to rust. A more thorough method is to add some other metals to iron to make a stainless alloy. The stainless steel we are familiar with is an alloy made by adding a little nickel and chromium to steel.
