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Basic tasks and means of steelmaking (19th Jun 19 at 2:08am UTC)Quote Reply

1. Why do you want to stop the slag tapping?

Answer: Less slag or slag tapping is one of the necessary means to produce pure steel. The purpose is to facilitate accurate control of molten steel composition, effectively reduce the return of molten steel, increase the absorption rate of alloy elements, and reduce alloy consumption. It is beneficial to reduce the content of inclusions in steel and improve the scouring effect of ladle. It is also beneficial to reduce the corrosion of ladle refractories. At the same time, it also increases the life of the converter tap.

2. What is the basic task of steelmaking? By what means?

Answer: The basic tasks of steelmaking are decarburization, dephosphorization, desulfurization, deoxidation, removal of harmful gases and non-metallic inclusions, increase of temperature, and adjustment of molten steel composition. Oxygen supply, slagging, agitation, and alloying are the means to accomplish the steelmaking task.

3. Briefly describe the main role of converter steelmaking in adding dolomite.

Answer: Dolomite is a slag-regulating agent with the distinction of raw dolomite and light burnt dolomite. According to the needs of slag splashing protection technology, the amount of MgO in the slag is added to maintain saturation or supersaturation to reduce the corrosion of the initial slag on the lining, so that the final slag can be made sticky, and the slag is discharged after tapping. Requirements.

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