| 摘要 |
<p>A ceramic plate for a side weir of a twin drum type continuous casting apparatus, characterized in that it contains 9 mass % or more of Al, has a bending strength at room temperature of 120 MP or more, a bending strength at 1000ºC of 65 MPa or more, a hardness (Hv) of 50 to 350, a fracture toughness KIC at 1000ºC of 1 Mpa • m1/2 or more, a heat conductivity at a temperature of room temperature to 1000 º C of 8 W / (m • K) or less, an index of the resistance to thermal shock R' of 800 W / m or more and an contact angle υ (wetting characteristics) with molten steel of 120 ° or more. The ceramic plate for a side weir can be used for casting molten stainless steel continuously for a long period of time.</p> |
