| 摘要 |
<p>The present invention relates to a refractory composition and to a slide gate plate for steel casting manufactured with the same. A slide gate plate having a refractory material formed by sintering, which contains multiple components, contains a main component forming a base composition, wherein the main component contains 43 wt% or more and 77 wt% or less of electrofused magnesia; 10 wt% or more and 40 wt% or less of CaO stabilized zirconia; and 5 wt% or more and 10 wt% or less of carbon. The slide gate plate having a refractory material is manufactured to obtain a refractory composition with improved corrosion resistance and spalling resistance, thereby increasing resistance to chemically molten iron as for special steel casting like Nb, Mn, and Cr-added high oxygen steel. Therefore, the costs and time for maintenance of refractory material of a slide gate plate. Also, delay of casting work caused by unnecessary repair is controlled to improve productivity.</p> |
