The sand washing machine has been subjected to long-term wind and rain in the process of use, and the working environment is bad. The surface of the sand making equipment will have problems such as rust and wear. The following is a explanation of the river pebble screening machine for the sand washing machine. The method of rust.
1. Chemical derusting: It is mainly a kind of descaling method that uses chemical reaction between acid and metal oxide to remove the corrosion product on the metal surface of the sand washing machine. It is usually called pickling and rust removal, which can only be used in the workshop. Internal operation.
Second, small wind or electric derusting: mainly powered by electric or compressed air, equipped with appropriate descaling device, reciprocating or rotating motion to meet the rust removal requirements of various occasions.
Third, the high-pressure water abrasive rust removal: the impact of high-pressure water jet (plus the abrasive grinding effect) and the action of water mash to destroy the corrosion and adhesion of the coating to the steel plate. Its characteristics are no dust pollution, no damage to the steel plate, greatly improve the rust removal efficiency, up to 15m2 / h or more, good derusting quality. However, after the rust-removed steel plate is easy to return to rust, it is necessary to apply a special wet rust-removing paint, which has a great influence on the coating of the general performance paint.
4. Apply anti-oxidation paint: Apply mineral oil, paint or fired enamel, spray, etc. on the surface of iron products.
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