Compared with ordinary flame spraying, what are the characteristics of arc spraying technology

       1) High thermal efficiency. Most of the heat during flame spraying is dispersed into the atmosphere and cooling system, and the utilization rate of heat energy is only 5%~15%; while in arc spraying, electricity is directly converted into heat energy to melt metal, and the utilization rate of heat energy is as high as 60%~70%. %.



    2) High production efficiency. The arc spraying technology has high production efficiency, which is reflected in the large quality of metal sprayed per unit time, and the production efficiency is proportional to the spraying current. In general, the productivity of arc spraying is more than 3 times that of flame spraying.

    3) The bonding strength of the coating is mainly. Arc spraying can obtain high bonding strength without increasing the temperature of the workpiece and without using expensive substrates, which is generally twice that of flame spraying.

    4) Low production cost. The price of electricity is much lower than that of oxygen and acetylene, the price of fuel consumed by flame spraying is several times the price of electricity, and the cost of arc spraying is more than 30% lower than that of flame spraying.

    5) Simple, safe and reliable operation. The arc spraying equipment does not have a complicated operating mechanism. As long as the process parameters are selected within the specified range according to the different spraying materials, the spraying quality can be guaranteed; and only electricity and compressed air are used, and flammable gases such as oxygen and acetylene are not used. Safe and reliable. It is also easy to carry out field work.

    6) Pseudo-alloy coatings can be prepared. Arc spraying requires only two wires of different compositions to produce pseudo-alloy coatings for unique comprehensive properties.

Arc spray equipment