Crosscut continuous casting method and the continuous casting apparatus of magnesium slab or magnesium alloy slab

摘要

[Challenge] the surface of the Mg slab or Mg alloy slab becomes black in the conventional manufacturing method. Cooling water there is also a danger of explosion touch. Surface was not possible to produce a smooth slab. A from the pouring basin of the tundish which is shielded from the surroundings by supplying a melt of Mg or Mg alloy into a mold, which is shielded from the surroundings, the Mg slab or Mg alloy slab, which is formed in the mold of the mold exit outside and pulled out, the Mg slab or Mg alloy slab cooled by ejecting a cooling medium at the outer or exit end of the mold exit the slab, the inert gas in the inner side from the outlet of the mold, nitrogen gas, fireproof gas, Nde a blow, and then seal the shielding plates of gap (upward) surrounding the top surface of Mg or Mg alloy of molten metal hot water surface and the mold of, oxygen from the gap in the mold, the droplets of the cooling medium, splash, etc. mold side were to be prevented from flowing back into. [Selection Figure] Figure 1