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公开(公告)号:JP4203157B2
公开(公告)日:2008-12-24
申请号:JP29896498
申请日:1998-10-20
Applicant: 住友金属工業株式会社 , 黒崎播磨株式会社
IPC: C04B35/043
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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