The main smelting points of ABS ship steel plate are as follows:
(1) The hot metal of ABS ship steel plate is pre desulfurized.
(2) The end point carbon of converter is controlled between 0.06% and 0.10%.
(3) Slag retaining tapping, ladle with synthetic slag.
(4) The content of acid soluble aluminum in the steel is 0.004% ～ 0.005% before the ABS ship steel plate e enters the refining station.
(5) The content of acid soluble aluminum in ABS ship steel plate is stable at 0.02% ~ 0.04% when feeding aluminum line in refining station; the ratio of w [Ca] / w [A1] controlled by feeding calcium line is 0.1.
(6) Ensure the stirring time of weak argon blowing of ABS ship steel plate, and promote the inclusion to fully float.
(7) The whole process of continuous casting is protected.
