Application of thermal spray technology
Thermal spraying, as one of the important surface engineering technologies, is a method to give the base material the surface properties necessary for the service environment by preparing material protective coatings and functional coatings on the surface of the material. Thermal spray technology is now more and more to make common.
Thermal spray technology is widely used in all walks of life, and there are many types of current thermal spray technology classification, atmospheric plasma spraying, low pressure plasma spraying, high speed oxygen fuel spraying, powder and wire material spraying, cold spraying, high pressure plasma spraying, etc. Thermal spraying technology is widely used in the automotive industry, aerospace, and steel industrialized production using today's research results.
At present, the spraying technology Method of thermal spraying mainly includes, sealing treatment, covering, hand-held spray gun, spray pretreatment and post-treatment operations, from high wear resistance, high quality, high work efficiency, corrosion resistance, and base material High bonding strength, high economic efficiency, corrosion resistance, adhesion resistance, heat resistance, high temperature resistance, corrosion resistance and other performance and work needs, reasonable and better selection of Thermal spray technology and materials to adapt to actual work condition.
The first method of Method of thermal spraying is flame spraying. Flame spraying has the characteristics of mature technology, simple equipment, strong adaptability, flexible operation, good economy and low noise. At present, it has been developed into the most widely used spraying process in thermal spraying technology.
The second type is supersonic flame spraying. Supersonic flame spraying uses a high-pressure water-cooled reaction chamber and a slender injection tube to send fuels such as acetylene, kerosene, propylene, hydrogen, and oxygen into the reaction chamber for combustion, and the burning flame is sprayed The tube compresses and accelerates the injection, and the powder is fed from the axial direction or the side of the injection tube. Compared with general flame spraying, this method of thermal spraying requires a large enough gas pressure to generate a flame flow with a velocity of 1830m/s, which is equivalent to 5 times the speed of sound. At the same time, the supersonic flame Spraying technology requires a huge gas supply system to meet a large amount of gas consumption, and the amount of oxygen used is 10 times that of ordinary flame spraying.
The number of thermal spray technology and patent applications is increasing year by year, and it is similar to foreign thermal spraying technology. The use of thermal spraying technology can have high bonding strength with the base material, high economic efficiency, corrosion resistance, adhesion resistance, heat resistance, and high temperature resistance. , Corrosion resistance and other properties, under actual production conditions, have a very distinct effect, better than electroplating, can improve the service life of equipment and related to production efficiency, so thermal spraying technology is widely used in all walks of life.
As a supplier of spraying systems, Guangzhou Ascend Precision Machinery Co., Ltd. provides excellent quality of spraying system products, so it has also gained a good reputation.
Tags:method of thermal spraying, thermal spray technology
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