Why do thick-walled alloy tubes need to be coated?
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Thick-walled alloy tube coating is used to prevent corrosion or damage caused by storage and transportation of steel pipes. Anti-corrosion coating treatment of thick-walled alloy tubes, such as exporting thick-walled alloy tubes (may need to be stored in open storage yards of ports) And the sea meets bad weather), oilfield pipes, etc. There are mainly electrostatic painting equipment and high-pressure spraying equipment, but in the use, there are always problems of long drying time and unsatisfactory anti-corrosion effect, as well as safety (fireproof) and environmental protection (oil-soluble paint is very toxic). At present, in the field of coating materials, the development of translucent, transparent water-soluble quick-drying paint suitable for spraying; in the field of equipment, the development of automatic equipment for high-pressure painting and coating recycling; in the process of development, research and development of steel pipe pre- Hot (intermediate frequency) spraying or post-spray drying process.