Analysis of the key technology of supersonic spraying in hard sealing ball valve!

       The key technology of supersonic spraying is used in the production and manufacture of mechanical parts, which can significantly improve their physical properties and application service life. waste, resulting in excellent economic benefits.

Supersonic spraying has long been widely used by chemical plants, power plants and other companies with wear-resistant machinery and equipment. Thermal spraying increases the service life of such companies' production line equipment, ensures the normal operation of machinery and equipment, reduces the company's energy consumption, and fully Played an increasingly obvious effect.

However, such technical requirements are very high for the employees who actually operate, and they are generally all carried out by technicians with rich and colorful work experience, so as to ensure the actual effect of spraying. Metal material hard sealing ball valves have been widely used in crude oil, chemical plants, metallurgical industry and urban planning and construction.



According to different materials, metal material hard-sealed ball valves can be used with a variety of substances such as strong electrolytes, steam, refined oil, sodium cyanide, glacial acetic acid and urea solutions. According to the structural reliability design, the metal material hard sealing ball valve can complete the opening and closing without friction and low torque. In application, the key ineffective way of metal hard sealing ball valve is abrasion damage.



Although the service life and abrasion resistance of metal hard-sealed ball valves can be improved according to the surface heat treatment process or spray-welded cemented carbide tools, it is still impossible to transport steel ash, pulverized coal, silicon powder and aluminum oxide. Regulations for unique substances such as powder.



If the supersonic flame spraying technology is used to solve the ball, the cementite metal material ceramic coating can be produced on the surface of the ball. The compressive strength of the coating and the base material can reach 70MPa, the porosity is less than 2%, and it has a uniform and high-density structure. , The characteristics of the hard phase WC are maintained in detail, the strength is >1000HV, the wear resistance and corrosion resistance are good, and the physical properties of mechanical equipment are very good, which can improve the performance indicators of the gate valve.