| 摘要 |
<p>The exposed surface of a molten metal, ferrous or non-ferrous in a ladle is covered by an expanding insulating ladle covering compound that is capable of absorbing and removing non-metallic inclusions in a predictable volume. The compound includes burnt lime in amounts between 56% and 60% by weight, aluminum dross, including Al2O3 in amounts between 22% and 30% by weight,fluorspar in amounts between 7% and 9% by weight, and acid treated graphite in amounts between 1% and 4% by weight.</p> |
