| 摘要 |
PCT No. PCT/CH82/00065 Sec. 371 Date Jan. 7, 1983 Sec. 102(e) Date Jan. 7, 1983 PCT Filed May 4, 1982 PCT Pub. No. WO82/03875 PCT Pub. Date Nov. 11, 1982.A plunging capsule for introducing a highly volatile, vaporizable additive, such as pure magnesium, into a metal melt in a treatment vessel comprises a wall oriented vertically in an operating position of the capsule. The wall has an upper portion forming two-thirds of the wall and a lower portion forming one-third of the wall, and defines a chamber for the additive. At least one outlet opening is provided in the upper portion. At least one inlet opening is provided in the lower portion. The transverse cross-sectional area of the inlet opening is less than that of the outlet opening. |
