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公开(公告)号：JP4160796B2
公开(公告)日：2008-10-08
申请号：JP2002207403
申请日：2002-07-16
Applicant: 黒崎播磨株式会社
IPC: B22D41/32 , C04B35/103
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Patent Agency Ranking
公开(公告)号：JP4119659B2
公开(公告)日：2008-07-16
申请号：JP2002081678
申请日：2002-03-22
Applicant: 黒崎播磨株式会社
Abstract: PROBLEM TO BE SOLVED: To obtain a good effect of tar impregnation by increasing open pores and enlarging vent pore diameters in order to form a plate brick of a high strength and high corrosion resistance by a dense structure. SOLUTION: Refractory materials containing 1 to 10 mass% carbon raw materials and an organic binder are mixed and the mixture is subjected to molding and drying, then to weak oxidation firing within 6 to 48 hours in an atmosphere of 0.001 to 0.5% in oxygen concentration, 0.1 to 6% in carbon dioxide concentration and 0.1 to 6% in steam concentration, by which the molding is impregnated with tar formed. The resultant carbon-containing refractories have characteristics of a low hermetic porosity and high ventilation pore diameter, making it possible to obtain the dense structure by the good tar impregnation effect and to obtain the high strength and the high durability in an actual machine. COPYRIGHT: (C)2004,JPO
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公开(公告)号：JP4684464B2
公开(公告)日：2011-05-18
申请号：JP2001134910
申请日：2001-05-02
IPC: C04B35/632 , C04B35/00 , F27D1/00
CPC classification number: Y02P10/143
Abstract: PROBLEM TO BE SOLVED: To provide a refractory composition capable of obtaining a refractory excellent in stability of forming and formability, high in residual carbon amount and good in corrosion resistance. SOLUTION: The refractory composition is prepared by blending fireproof aggregate with phenol resin as binder component and ring compound, the boiling point of which is >=130 deg.C in atmosphere.
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