Practice of Process for Rock Drill Steel Produced by Caster Flow

With CCM produced the rock drill Steel,controlling refining soft stirring in last stage of refining,increase the purity of liquid steel,adjusting the casting temperature,control overheating of liquid in Tundish between 15 ~ 25 ℃,whole process shield casting,the rock drill steel is successfully produced by caster flow sheet at No1 Steel making Works,Guiyang Steel,the product life and the main technical are superior to ingot's products,the product stable high.