Galvanized seamless steel tube is an indispensable part
In the production of seamless steel pipes, the first step to be done is galvanizing, because galvanizing will allow the surface of the seamless steel pipe to be coated with an oxide film. This will play a certain protective role, and can make the seamless steel pipe long-term preservation, so that the hardness of the seamless steel pipe is improved, high temperature resistance and corrosion resistance.
It has been confirmed from historical tests and production practices that the temperature of the zinc bath for hot-dip galvanizing of seamless steel tubes is controlled at an optimum temperature in the range of 450 to 460'C. When the temperature is high, it will increase the heat consumption, shorten the service life of the steel zinc pot, accelerate the formation of zinc slag and zinc ash, and affect the quality of the galvanized silkworm plastic layer. When the temperature is low, it will affect the galvanizing ability of the seamless steel pipe, and the zinc layer will be thick and uneven due to the decrease in the fluidity of the zinc liquid.
In actual use and experiment, the difference between galvanized and non-galvanized is very large, and it can be better reflected in the service life. Therefore, seamless steel pipe galvanizing is an indispensable part and must be carried out.
It has been confirmed from historical tests and production practices that the temperature of the zinc bath for hot-dip galvanizing of seamless steel tubes is controlled at an optimum temperature in the range of 450 to 460'C. When the temperature is high, it will increase the heat consumption, shorten the service life of the steel zinc pot, accelerate the formation of zinc slag and zinc ash, and affect the quality of the galvanized silkworm plastic layer. When the temperature is low, it will affect the galvanizing ability of the seamless steel pipe, and the zinc layer will be thick and uneven due to the decrease in the fluidity of the zinc liquid.
In actual use and experiment, the difference between galvanized and non-galvanized is very large, and it can be better reflected in the service life. Therefore, seamless steel pipe galvanizing is an indispensable part and must be carried out.
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