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公开(公告)号：JP4272856B2
公开(公告)日：2009-06-03
申请号：JP2002239941
申请日：2002-08-20
Applicant: エル ダブリュ ビー リフラクトリーズ カンパニー , 黒崎播磨株式会社
Inventor： ドナルド ブルース フーバー , 浩二 緒方
CPC classification number: C04B41/009 , B22D41/54 , C04B35/057 , C04B41/4584 , C04B41/85 , C04B2111/00887 , C04B2235/3206 , C04B2235/80 , C04B41/0072 , C04B41/4519 , C04B41/4556 , C04B41/501 , C04B35/06
Abstract: Disclosed is a method of producing an immersion nozzle for continuous casting, which comprises integrally molding a first zirconia-graphite compound applied to a powder-line portion of the nozzle, and a second compound applied to at least an inner hole portion of the nozzle. The second compound includes 10 mass% or more of clinker particles each containing CaO as a mineral phase, and the surface of at least a part of the clinker particles is subjected to an anti-hydration treatment, such as a heat treatment to be performed under a CO2 atmosphere to convert CaO to CaCO3. The method of the present invention can suppress volume expansion caused by the reaction between CaO and water released from resin added as binder, so as to prevent the occurrence of cracks during a burning process of the molded piece.
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公开(公告)号：JP4261841B2
公开(公告)日：2009-04-30
申请号：JP2002239940
申请日：2002-08-20
Applicant: エル ダブリュ ビー リフラクトリーズ カンパニー , 黒崎播磨株式会社
Inventor： ドナルド ブルース フーバー , 浩二 緒方
CPC classification number: C04B41/009 , B22D41/54 , C04B35/06 , C04B41/501 , C04B41/85 , C04B2111/00887 , C04B2235/321 , C04B2235/425 , C04B2235/5427 , C04B2235/5436 , C04B2235/5463 , C04B2235/604 , C04B2235/652 , C04B41/0072 , C04B41/4519 , C04B41/4556 , C04B35/013 , C04B35/057
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公开(公告)号：JP4648506B2
公开(公告)日：2011-03-09
申请号：JP9436499
申请日：1999-03-31
Applicant: 黒崎播磨株式会社
Abstract: PROBLEM TO BE SOLVED: To provide a refractory for continuous casting which can integrally be formed and has excellent heat shock resistance at the using time and prevents the clogging of an immersion nozzle caused by the precipitation of Al2O3 without generating the crack at the firing time, by composing it of a specified wt. ratios of agalmatolite having specified grain diameter and carbon and the balance refractory oxide raw material. SOLUTION: This refractory is composed of 5-50 wt.% agalmatolite having
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公开(公告)号：JP4456443B2
公开(公告)日：2010-04-28
申请号：JP2004258692
申请日：2004-09-06
IPC: B22D11/10 , B22D41/32 , B22D41/54 , C04B35/043 , C04B35/06
Abstract: PROBLEM TO BE SOLVED: To prevent the sticking of alumina in molten steel onto a working surface in a long time casting of the molten steel and also, to improve the erosion, in a continuous casting nozzle disposing a refractory comprising a dolomite clinker on the surface in contact with the molten steel. SOLUTION: The refractory obtained by blending 90-99.7 mass% the dolomite clinker or the dolomite clinker and magnesia clinker and 0.3-1.0 mass% pitch powder so as to become 0.33-3.0 mass ratio W!/W2 of the content W1 of CaO component and the content W2 of MgO component, kneading by adding a binder, forming and heat-treating, is disposed at least at a portion in contact with the molten steel. COPYRIGHT: (C)2006,JPO&NCIPI
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Patent Agency Ranking
公开(公告)号：JP4331924B2
公开(公告)日：2009-09-16
申请号：JP2002242731
申请日：2002-08-22
Applicant: エル ダブリュ ビー リフラクトリーズ カンパニー , 黒崎播磨株式会社
Inventor： ドナルド ブルース フーバー , 温良 木村 , 浩二 緒方
CPC classification number: B22D41/02 , B22D41/18 , B22D41/32 , B22D41/54 , C04B35/013 , C04B35/06 , C04B35/62665 , C04B2235/5427 , C04B2235/5436 , C04B2235/5472 , C04B2235/9676
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公开(公告)号：JP3540891B2
公开(公告)日：2004-07-07
申请号：JP9154796
申请日：1996-04-12
Applicant: 黒崎播磨株式会社
Inventor： 浩二 緒方
IPC: B22D41/54 , B22D11/10 , C04B35/103
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