| 摘要 |
PCT No. PCT/SU82/00015 Sec. 371 Date Dec. 23, 1982 Sec. 102(e) Date Dec. 23, 1982 PCT Filed Apr. 23, 1982 PCT Pub. No. WO82/03582 PCT Pub. Date Oct. 28, 1982.A teeming ladle with at least one tapping hole (3) formed in the bottom of its body (1). According to the invention, a sleeve (4) is arranged around each tapping hole (3) substantially coaxially therewith. The sleeve (4) has one of its ends tightly connected with the ladle bottom and the other end immersed in the melt during casting. The diameter of the sleeve (4) is so many times larger than that of the tapping hole that after being immersed in the melt, a space is left in the sleeve interior filled with a gas medium under a pressure ranging from 0.02 to 1.0 time the pressure under which the melt is discharged from the ladle.
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