In the process of producing 410S stainless steel by Xinggang one-step method ( dephosphorization station + 60 t AOD + LF)

the tap-to-tap cycle of AOD is much larger than that of continuous casting machine pouring and dephosphorization station and the lower part of continuous casting nozzle etches seriously. It is impossible to realize continous-con- tinuous casting

which seriously affects the operation rate of continuous casting machine and the consumption of overall steel materials. Increasing the number of single-in-one continuous casting furnaces is beneficial to reduce the number of tundish used

increase the operating rate of the continuous casting machine

reduce the consumption of steel materials

reduce the consumption of auxiliary materials for continuous casting machines and energy media. By reasonably increasing the proportion of cold-returned scrap into the furnace (3.5 t/heat)

selecting the appropriate silicon content 3.5% to shorten the tap-tap cycle of the 410S stainless steel AOD to 71 minutes

the continuous casting machine adopts the split-pack water inlet quick change

so that the continuous casting 6 heats were raised to 12 heats.