| 摘要 |
FIELD: metallurgy. ^ SUBSTANCE: invention refers to metallurgy field, particularly to tundishes. Locking device allows counterbore, at least one gas channel length of which exceed distance restricted by straight line between its ends. Cross-section area of channel is less than middle area of counterbore. Gas channel can be implemented in the form of spiral or meander. ^ EFFECT: due to creation of excessive pressure inside the locking opening it is prevented formation of vacuum in point of locking device and it is provided stability of pouring. ^ 11 cl, 3 dwg, 4 ex |
