TUNDISH IMPACT PAD,申请号CA19992338508-传众专利搜索

TUNDISH IMPACT PAD

申请公布号：CA2338508(A1)

申请号：CA19992338508

申请日期：1999.07.27

申请公布日期：2000.02.10

申请人：

FOSECO INTERNATIONAL LIMITED

发明人：SUTTON, DENNIS

分类号：B22D41/00;(IPC1-7):B22D41/00

主分类号：B22D41/00

摘要：A tundish impact pad comprises a body of refractory material capable of withstanding contact with molten steel, the body comprising a base (15) havi ng an impact surface for molten steel, an outer sidewall (17) extending upwardl y from the impact surface, the outer sidewall extending around the base to completely enclose it, an annular body portion (18) connected to the sidewal l and providing a top surface substantially parallel to the impact surface (19 ) and defining an opening into which molten steel can be poured, the lower fac e of the annular body portion and the inner face of the sidewall (17) defining a recess (21) having an undercut portion extending continuously around and abo ve the impact surface, wherein a first portion (22) of the top surface (19) is at a lower level (19A) than the remainder of the top surface and the recess beneath the first portion of the top surface (19) is of smaller cross-sectio n than the remainder of the recess, a temporary shield (24A, B) of material destructible by the molten metal being positioned on or adjacent to the lowe r surface portion to reduce or eliminate its height loss relative to the remainder of the top surface.