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公开(公告)号:JP3803740B2
公开(公告)日:2006-08-02
申请号:JP6378498
申请日:1998-03-16
Applicant: 黒崎播磨株式会社
IPC: C04B35/101 , C21C7/072
Abstract: PROBLEM TO BE SOLVED: To produce a refractory for gas blowing excellent in a function to prevent bubbling defect at a low cost. SOLUTION: A refractory raw material using 65-80 wt.% alumina particle and 15-30 wt.% unstabilized zirconia particle having 0.3-2 mm particle diameter as aggregate raw materials and the balance at least one kind of a fine powdery raw material selected from the group composed of silica fine powder, alumina fine powder, clay fine powder and chromium oxide fine powder is prepared. A sintered compact having zirconia particle, around which fine cracks are generated, is obtained by adding a binder into the refractory raw material, kneading, forming into a prescribed shape and firing in the atmosphere.
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公开(公告)号:JP5565907B2
公开(公告)日:2014-08-06
申请号:JP2010505742
申请日:2009-03-25
Applicant: 黒崎播磨株式会社
IPC: C04B35/00 , B22D11/10 , B22D41/32 , C04B35/101
CPC classification number: B22D41/32 , B22F2998/00 , C04B35/103 , C04B35/106 , C04B35/62665 , C04B2235/3217 , C04B2235/3222 , C04B2235/3244 , C04B2235/3463 , C04B2235/349 , C04B2235/36 , C04B2235/3821 , C04B2235/3826 , C04B2235/401 , C04B2235/402 , C04B2235/425 , C04B2235/428 , C04B2235/48 , C04B2235/483 , C04B2235/5427 , C04B2235/5436 , C04B2235/5445 , C04B2235/5472 , C04B2235/656 , C04B2235/6587 , C04B2235/77 , C04B2235/96 , C22C21/06 , C22C29/12
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公开(公告)号:JP5564496B2
公开(公告)日:2014-07-30
申请号:JP2011515905
申请日:2010-05-27
CPC classification number: B22D41/32 , B22D11/10 , B22D41/54 , C04B35/013 , C04B35/103 , C04B35/443 , C04B35/62665 , C04B35/63476 , C04B2235/3217 , C04B2235/3222 , C04B2235/3821 , C04B2235/401 , C04B2235/422 , C04B2235/424 , C04B2235/425 , C04B2235/428 , C04B2235/5427 , C04B2235/80 , C04B2235/9676 , C22C32/00 , C22C38/002 , C22C38/02 , C22C38/60
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公开(公告)号:JPWO2010137333A1
公开(公告)日:2012-11-12
申请号:JP2011515905
申请日:2010-05-27
CPC classification number: B22D41/32 , B22D11/10 , B22D41/54 , C04B35/013 , C04B35/103 , C04B35/443 , C04B35/62665 , C04B35/63476 , C04B2235/3217 , C04B2235/3222 , C04B2235/3821 , C04B2235/401 , C04B2235/422 , C04B2235/424 , C04B2235/425 , C04B2235/428 , C04B2235/5427 , C04B2235/80 , C04B2235/9676 , C22C32/00 , C22C38/002 , C22C38/02 , C22C38/60
Abstract: 本発明は、45質量%以上、94質量%以下の理論組成のスピネル原料、1質量%以上、50質量%以下のアルミナ原料、1質量%以上、7質量%以下の金属Al、0.5質量%以上、2質量%以下の金属Si、0.5質量%以上、4質量%以下のカーボン原料、0.1質量%以上、1質量%以下のB4C、及び不可避的不純物を含む残部を含有する原料に、外掛けで2質量%以上、6質量%以下のバインダーを加えて混練、成形して得られるスライディングノズルを介して溶鋼を容器に供給する、鋼の連続鋳造方法を提供する。
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公开(公告)号:JPWO2009119683A1
公开(公告)日:2011-07-28
申请号:JP2010505742
申请日:2009-03-25
Applicant: 黒崎播磨株式会社
IPC: C04B35/00 , B22D11/10 , B22D41/32 , C04B35/101
CPC classification number: B22D41/32 , B22F2998/00 , C04B35/103 , C04B35/106 , C04B35/62665 , C04B2235/3217 , C04B2235/3222 , C04B2235/3244 , C04B2235/3463 , C04B2235/349 , C04B2235/36 , C04B2235/3821 , C04B2235/3826 , C04B2235/401 , C04B2235/402 , C04B2235/425 , C04B2235/428 , C04B2235/48 , C04B2235/483 , C04B2235/5427 , C04B2235/5436 , C04B2235/5445 , C04B2235/5472 , C04B2235/656 , C04B2235/6587 , C04B2235/77 , C04B2235/96 , C22C21/06 , C22C29/12
Abstract: 本発明は、使用時に発煙や刺激臭のあるガスの発生量が少なく、しかも高耐用なプレートれんがを提供する。本発明のプレートれんがは、アルミニウム及び/またはアルミニウム合金を0.5〜20質量%含有する耐火原料配合物に有機バインダーを添加し、混練後、成形し、400℃以上1000℃以下で熱処理し、その後、タール、ピッチ等の炭素質含有液状物を含浸させないプレートれんがであって、圧縮強度が180MPa以上、かつオートクレーブによる消化試験での重量増加率が1%以下である。
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公开(公告)号:JP3692387B2
公开(公告)日:2005-09-07
申请号:JP21210097
申请日:1997-08-06
Applicant: 黒崎播磨株式会社
IPC: B22D41/32 , C04B35/043 , C21C7/00
Abstract: PROBLEM TO BE SOLVED: To improve the excellent spalling resistance, wear resistance, erosion resistance and mechanical strength in a slide gate plate by heating and forming a mixed material containing a specific ratio of each raw material of magnesia quality, carbon quality and alumina-zirconia at specific temp. and pressure. SOLUTION: The slide gate plate 4 having a molten steel flowing hole 5 penetrated in the thickness direction is manufactured by heating at high temp. and forming the mixed material containing by wt.% of 55-92 magnesia quality raw material, 3-15 carbon quality raw material, 5-30 alumina-zirconia raw material of 30-97 Al2 O3 and 3-70 ZrO2 at 1000-1900 deg.C temp. and 10-20 MPa pressure. As the other way, this slide gate plate 4 has the slide gate plate 4 body having the molten steel flowing hole 5 and an annular or a cylindrical molten steel flowing member inserted in the molten steel flowing hole 5 and forming the surface contacting with the molten steel stream, and is formed while heating at high temp. as the same way as the above-mentioned.
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