Tsingitud roostetamine on normaalne.; vastasel juhul on tsinkplaat ebapuhas ja sisaldab lisandeid, nagu raud. Lisaks kaitseb tsink teisi metalle ja tsingi ebaühtlane kate paljastab sees oleva metalli, põhjustades korrosiooni. Või puutuvad need kogemata kokku teiste metallidega, põhjustades keemilise korrosiooni.
Kuumtsingitud terasplekk will also rust, but the galvanized layer is oxidized first to protect the steel sheet from rusting, and its service life is longer. In addition, the chrome-plated chrome layer will not react with oxygen, carbon dioxide, and water in the air under natural conditions, nor will it be corroded by weak acids and alkalis. Its anti-rust effect is better.
Kuumtsingitud terasplekk will not rust in a typical environment, but it may rust due to improper storage, scratches and bumps, water intrusion, and steam fumigation. Galvanized sheet rusts because zinc is corroded, protecting other metals. Otherwise, the zinc plate is impure and contains impurities, such as iron.
