One of the metallization technologies used at RADMET is arc spraying. Coatings made with this technology can be used in the regeneration of machine parts and can protect parts from corrosion.

Arc spraying – or what?

During this method of metallization, the coating material is fed from two spools of wires acting as electrodes (solid or powder of equal or different chemical composition), which are passed to the gun. At their point of contact, an electric arc is generated, which reaches temperatures as high as 5000°C. It causes the metal to melt. Under the action of compressed air, the melted particles are transferred at speeds of up to 150 m/s to the prepared surface – this results in a permanent adhesive bonding of the two coatings into a single unit. The substrate, in some cases, must be additionally heated with a torch to prevent the generation of a large amount of stress during cooling. The most commonly used materials in arc spraying are aluminum, zinc, molybdenum, brass, monel, bronze, chrome-nickel and ferritic steels.

Advantages of the technology

Arc spraying is characterized by its ability to produce a denser coating than flame spraying. The technique is considered one of the more efficient. Coatings made with this technology can be used in the regeneration of machine parts and can protect parts from corrosion. Arc spraying allows us to mix two types of wires, so we can obtain different properties of coatings obtained after mixing different wire materials, such as bronze and steel.

If you are looking for a company that provides arc spraying services, we put ourselves at your disposal.

We have modern machinery, so we are able to meet the most unusual expectations of customers. We guarantee quick execution of the order with the utmost attention to detail.