Magnesia refractories
    2.
    发明专利

    公开(公告)号:JP4203157B2

    公开(公告)日:2008-12-24

    申请号:JP29896498

    申请日:1998-10-20

    Abstract: PROBLEM TO BE SOLVED: To obtain a magnesia refractory having the same thermal spalling resistance and structural spalling resistance as those of magnesia-chrome refractory or higher than them. SOLUTION: This magnesia refractory is obtained by molding a mixture comprising 93-97 wt.% of a magnesia clinker containing 1.5-4 wt.% of CaO and 3-1 wt.% of zirconia having =1700 deg.C. Particles havxng >=0.5 mm particle diameters in the magnesia clinker in the mixture is electromelted clinker and particles having

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