| 摘要 |
This invention relates to a tundish flux for use with aluminium-killed steel consisting essentially of 31 to 75% by weight calcium carbonate, 4 to 14% alkali metal carbonate, up to 18% fluorspar, and 14 to 38% sodium fluoride. Preferably, the ingredients are finely-divided materials which are blended and agglomerated into pellets about one-quarter to one-half inch in diameter.
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