Application of thermal spraying technology in metallurgical industry

Spraying technology started at the beginning of this century. In the beginning, only the molten metal was formed into a stream of compressed air and sprayed onto the surface of the coated substrate to form a film-like structure. The spraying temperature, the impact speed of the droplets on the surface of the substrate and the properties of the material forming the coating constitute the core of the spraying technology.

The entire development of thermal spray technology is basically advancing along these three main lines. The temperature and speed depend on different heat sources and equipment structures. In a sense, the higher the temperature and the higher the speed, the more conducive to the formation of an excellent coating, which leads to the competition and coordination of the two elements of temperature and speed in the entire technological development process.

The choice of a wide range of spraying materials is another advantage of thermal spraying technology, which can make the working surface of different equipment be “pointed into gold, wearing helmets and armor”. It is these three elements, and many other controllable influencing factors that make thermal spraying a truly unique technology with superimposing effects. It can design a variety of modified surfaces required to obtain maintenance from general machinery. ,

Until it is widely used in high-tech fields such as aerospace and biological engineering. Not long ago, at the 14th International Thermal Spray Conference held in Kobe, Japan, the automotive, metallurgy, and energy industries were taken as the three major themes of the deep application and key development of thermal spray technology, showing the technology’s usefulness in expanding applications. New trends.