Qingdao iron processing welding is divided into two types, respectively:

surfacing

Surfacing welding is the process of applying a layer of metal to the surface of a part by welding. It is an important and economical means of manufacturing and repair in the machinery manufacturing industry. The purpose is to make the surface of the parts have special properties such as wear resistance, heat resistance, corrosion resistance of the fused metal, or to restore or increase the size of the parts. The alloys used for surfacing welding can be summarized into several types, such as iron base, nickel base, cobalt base, copper base and tungsten carbide.

Spray welding

Thermal spraying technology is a surface processing method that uses a heat source to heat metal or non-metal materials to a molten or semi-molten state, blows them into tiny particles (atomization) with high-speed air flow (in the spray gun), and jets them to the surface of the workpiece to form a firm covering layer. This method can make the workpiece surface obtain a variety of hardness, wear resistance, corrosion resistance, oxidation resistance, lubrication and other special physical and chemical properties. Many materials (metal, ceramic, plastic, cement, gypsum, wood, etc.) can be sprayed on the surface. In order to improve the bonding strength of the spray layer and the base material and reduce the porosity of the coating, the spray layer can be heated to melt by a heat source, so that the molten alloy of the spray layer and the base material metal are miscible and diffused to form a metallurgical bonding similar to brazing. This process is called spray welding, and the resulting coating is called the spray welding layer