After the hollow pin chain is used for a period of time, due to the influence of human or objective factors, rust spots often appear on the surface. The appearance of rusty spots greatly reduces the smoothness of the hollow pin chain. If the problem is not solved for a long time, the service life of the chain will also be shortened.

In this way, once the surface of the hollow pin chain has rust spots and needs timely treatment, it can be removed with pickling paste, which is helpful to improve the smoothness of the surface of the hollow pin chain. When the stainless steel is operated, the pickling paste is coated on the surface of the hollow pin chain, the thickness of the coating film is 0.5-2mm, and after the reaction time is 3-10min, the rust spots can be completely removed by brushing several times with a brush.

In order to avoid rust, clean it with clean water, but it is not possible to deal with the problem after it occurs, and prevention is needed in advance. Avoid contact of hollow pin chain with corrosive substances such as acid and alkali as far as possible, and at the same time, control the working environment of the chain to reduce the possibility of rust spots.