| 摘要 |
PURPOSE: A discharge pipe for the steel-tapping hole of converter is provided to shorten the initial tapping time of discharge pipe for the steel-tapping hole of converter, thereby maintaining the even steel-tapping hole from the initial use to the late use. CONSTITUTION: A discharge pipe for the steel-tapping hole of converter includes a discharge pipe, a passage(110), a flow rate increasing part, and a flow rate delaying part. A discharge pipe main body is detachably combined in a converter. The passage is formed in a form that the passage penetrates the discharge pipe main body so as to be connected with the receiving part of converter. The flow rate increasing part increases the flow rate of molten steel which is discharged by forming at the inlet of the passage. The flow rate delaying part delays the flow rating of molten steel which is discharged by forming at the outlet of the passage. The flow rate increasing part includes a curved surface(120), which has a round shape, and an inclined surface(130). The flow rate delaying part is the flat surface(140). |
