The method of manufacturing the plate brick for the sliding nozzle device

    公开(公告)号:JP4119659B2

    公开(公告)日:2008-07-16

    申请号:JP2002081678

    申请日:2002-03-22

    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

    Carbon-containing refractories
    15.
    发明专利

    公开(公告)号:JP4856513B2

    公开(公告)日:2012-01-18

    申请号:JP2006284094

    申请日:2006-10-18

    Abstract: PROBLEM TO BE SOLVED: To provide a carbon-containing refractory having excellent slag resistance as well as excellent thermal shock resistance by a means where uniform dispersion is relatively simply made possible when carbon nanofibers are dispersed into a refractory for reducing carbon in a carbon-containing refractory. SOLUTION: Using, as raw materials, a catalyst-covered refractory raw material in which the surface of a refractory raw material is coated with one or more kinds of metals selected from the group consisting of V, Fe, Co, Ni, Cu, Mo, Pd, Rh, W and Pt, the oxide or metal salt of the metal(s), and an organic polymer resin or the precursor thereof, they are kneaded, molded and heat-treated, so as to be a nanocarbon-containing refractory in which nanocarbon tubes are uniformly dispersed into the structure. COPYRIGHT: (C)2008,JPO&INPIT

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