The lifting chain will be scrapped when it is broken, stretched, rusted and other conditions occur, but there are also standards for scrapping. Take the lifting chain as an example. Only when the lifting chain is seriously corroded, it will be scrapped directly. If it is slightly rusted, it is unnecessary to throw it away directly when the impact on the metal performance of the lifting chain is not great. However, if you want to continue using, you must carry out rust removal.
If you want to remove rust, you can use various tools to shovel it off, or you can soak it in acidic solution to dissolve it. After removing the rust, the iron surface must be treated, coated with a layer of lead, and then coated with paint; Or plated with other metals that are not easy to rust. A more thorough way is to add some other metals to iron to make stainless alloy. The stainless steel we are familiar with is an alloy made by adding a little nickel and chromium to the steel.
Derusting of the lifting chain is also a form of maintenance, but this form is based on the slight weakening of the lifting chain, so we should solve the problem from the root, and it is a better choice to do a good job of rust prevention
