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1. 发明专利

JPH06116049A SPINEL MONOLITHIC REFRACTORY 失效
公开(公告)号：JPH06116049A
公开(公告)日：1994-04-26
申请号：JP29395492
申请日：1992-10-08
申请人： NIPPON STEEL CORP , KUROSAKI REFRACTORIES CO
发明人： TAKEUCHI KAZUHIKO , NAKAO ATSUSHI , YAMADA JUNJI , KONO KOJI , EGAMI JUN
IPC分类号： C04B35/66
摘要： PURPOSE:To control rate of linear change after sintering to 0 to +2% regardless of the ratio of magnesia and alumina to spinel in a raw material by restricting the particle diameter of alumina in a monolithic refractory containing magnesia, alumina and spinel as a main component. CONSTITUTION:This monolithic refractory contains (A) 100 pts.wt. sum consisting of 5-95 pts.wt. magnesia and 95-5 pts.wt. alumina with a small quantity of a binder and a slaking preventive by external multiplication or (B) 100 pts.wt. sum consisting of 5-95 pts.wt. magnesia, 95-5 pts.wt. alumina and 0.1-90 pts.wt. spinel with a small quantity of the binder and the slaking preventive by external multiplication, where the alumina used for both (A) and (B) contains 3-10 pts.wt. alumina having

2. 发明专利

JPH06116048A SPINEL MONOLITHIC REFRACTORY 失效
公开(公告)号：JPH06116048A
公开(公告)日：1994-04-26
申请号：JP29395392
申请日：1992-10-08
申请人： NIPPON STEEL CORP , KUROSAKI REFRACTORIES CO
发明人： TAKEUCHI KAZUHIKO , NAKAO ATSUSHI , YAMADA JUNJI , KONO KOJI , EGAMI JUN
IPC分类号： C04B35/66
摘要： PURPOSE:To improve high temp. strength without using a sintering assistant by restricting the particle diameter of alumina in a monolithic refractory containing magnesia, alumina and spinel as a main component. CONSTITUTION:This monolithic refractory contains (A) 100 pts.wt. sum consisting of 5-95 pts.wt. magnesia and 95-5 pts.wt. alumina with a small quantity of a binder and a slaking preventive by external multiplication or (B) 100 pts.wt. sum of 5-95 pts.wt. magnesia, 95-5 pts.wt. alumina and 0.1-9.0 pts.wt. spinel with a small quantity of the binder and the slaking preventive by external multiplication, where the alumina having 0.5-1.0mm particle diameter occupies

3. 发明专利

JPH0618520A METHOD FOR EVALUATING CORROSION RESISTANCE OF REFRACTORY 失效
公开(公告)号：JPH0618520A
公开(公告)日：1994-01-25
申请号：JP19583792
申请日：1992-07-01
申请人： NIPPON STEEL CORP , KUROSAKI REFRACTORIES CO , HARIMA CERAMIC CO LTD
发明人： TAKEUCHI KAZUHIKO , OKAWA KIYOSHI , ISOBE TOSHIHIRO , SUEKAWA YUKIHIRO
IPC分类号： G01N33/38
摘要： PURPOSE:To obtain a method by which the corrosion resistance of a refractory to be evaluated can be evaluated with high accuracy. CONSTITUTION:When the title method is used, a high-frequency induction furnace is lined with a refractory to be evaluated and a prescribed quantity of steel and slag added as an eroding agent are melted in the furnace by induction heating so as to bring the molten steel and slag come into contact with and erode the refractory to be evaluated. Then refractory erosion tests are conducted by lining the furnace with the refractory to be evaluated after the furnace is lined with an insulator and adding slag as an eroding agent by a prescribed amount at which the slag forms a layer of 10-30mm in thickness when the slag is melted.

4. 发明专利

JP2012228853A Mold for hexagonal cross-sectional refractory brick, method for molding hexagonal cross-sectional refractory brick, and method for manufacturing container for molten metal 有权
$Mold for hexagonal cross-sectional refractory brick, method for molding hexagonal cross-sectional refractory brick, and method for manufacturing container for molten metal$
标题翻译：用于六角形横截面耐火砖的模具，用于模制六角形横截面耐火砖的方法以及用于制造用于金属的容器的方法
公开(公告)号：JP2012228853A
公开(公告)日：2012-11-22
申请号：JP2011099981
申请日：2011-04-27
申请人： Nippon Steel Corp , 新日本製鐵株式会社 , Kurosaki Harima Corp , 黒崎播磨株式会社
发明人： TAIRA HATSUO , KOBAYASHI SHINTARO , TAKEUCHI KAZUHIKO
IPC分类号： B28B7/00 , B28B3/02 , F27D1/04
摘要： PROBLEM TO BE SOLVED: To provide a mold capable of molding even a hexagonal pillar-shaped brick of which the cross-sectional shape is changed in a length direction and having uniform quality regardless of a length.SOLUTION: The mold 1 for a hexagonal cross-sectional refractory brick includes two opposed side molds 11a and 11b and a lower surface mold 12 and an upper surface mold 13 arranged between the two side molds and a body for the brick is housed in a space 15 surrounded by the lower surface mold 12, the upper surface mold 13 and the two opposed side molds 11a and 11b. Opposed surfaces of the two side molds are vertical surfaces 14a and 14b symmetrically arranged so as to be spaced apart from each other with respect to a first axis A extending in a horizontal direction, and the opposed surface of the lower surface mold 12 to the upper surface mold 13 and the opposed surface of the upper surface mold 13 to the lower surface mold 12 comprise cross-sectionally V-shaped valley recessed parts where the space 15 side extending in the direction of the first axis A is recessed, and both the lower and upper surface molds or bottoms 12a and 13a of the valley-shaped recessed part of the upper surface mold have predetermined radii of curvatures.
摘要翻译：要解决的问题：提供一种即使在横截面形状在长度方向上变化并且具有均匀质量而不管长度的六边形柱状砖的模具。解决方案：用于六边形横截面耐火砖的模具1包括两个相对的侧模具11a和11b以及下表面模具12和布置在两个侧模具之间的上表面模具13和用于砖的主体在由下表面模具12，上表面模具13和两个相对的侧模具11a和11b围绕的空间15中。两侧模具的相对表面是相对于沿水平方向延伸的第一轴线A对称地布置成彼此间隔开的垂直表面14a和14b，并且下表面模具12的相对表面到上部表面模具13和上表面模具13相对于下表面模具12的相对表面包括横截面V形谷凹部，其中在第一轴线A的方向上延伸的空间15侧凹陷，并且两个下部并且上表面模具的谷形凹部的上表面模具或底部12a和13a具有预定的曲率半径。版权所有（C）2013，JPO＆INPIT

5. 发明专利

JPH0781998A CARBON-CONTAINING REFERACTORY AND PRODUCTION THEREOF 失效
公开(公告)号：JPH0781998A
公开(公告)日：1995-03-28
申请号：JP27894093
申请日：1993-09-17
申请人： NIPPON STEEL CORP
发明人： TAKEUCHI KAZUHIKO , TERAJIMA HIDETOSHI
IPC分类号： C04B35/00
摘要： PURPOSE:To obtain a carbon-contg. refractory low in elastic modulus and excellent in resistance to thermal shock in the refractory consisting of a specified amt. of high-m.p. aggregate and powdery carbon by covering the aggregate with a specified amt. of resin and separating the aggregate and carbon. CONSTITUTION:A refractory consisting of 70-95wt.% of >=1 kind among refratory aggregate materials having

6. 发明专利

JPH0769712A REFRACTORY COMPOSITION AND ITS PRODUCTION 失效
公开(公告)号：JPH0769712A
公开(公告)日：1995-03-14
申请号：JP16841193
申请日：1993-06-16
申请人： NIPPON STEEL CORP
发明人： TERAJIMA HIDETOSHI , TAKEUCHI KAZUHIKO , ISHII AKIO , IDE HIDEO
IPC分类号： B22D41/02 , C04B35/00 , C04B35/04 , C04B35/101 , C04B35/443
摘要： PURPOSE:To obtain a refractory composition excellent in resistance to corrosion nd thermal shock. CONSTITUTION:This refractory composition excellent in resistance to corrosion and thermal shock has the following characteristics: composed of oxides such as MgO, Al2O3, Cr2O2, MgAl2O4 and MgCr2O4; containing, as chemical composition, MgO, Al2O3 and Cr2O3; MgO content is 40-90mol%; MgO/Cr2O3 (molar ratio) is >=1.0; (5) among grains composed of the oxides, at least those

7. 发明专利

JPH06287054A CARBON-CONTAINING NEUTRAL REFRACTORY 失效
公开(公告)号：JPH06287054A
公开(公告)日：1994-10-11
申请号：JP9510893
申请日：1993-03-31
申请人： NIPPON STEEL CORP
发明人： NAKAO ATSUSHI , TAIRA HATSUO , MATSUI TAKESHI , TAKEUCHI KAZUHIKO
IPC分类号： C04B35/00 , C04B35/10 , C04B35/103 , C22C1/05
摘要： PURPOSE:To inexpensively improve oxidation resistance and corrosion resistance without damaging spalling resistance by blending a mixture of given amounts of a neutral refractory raw material and a graphite with metal powder. CONSTITUTION:55-96wt.% of a neutral refractory raw material such as fused alumina having >=90wt.% purity is mixed with 3-30wt.% of a graphite such as coke having >=90wt.% purity and 1-15wt.% of SiC to give a mixture. Then 100 pts.wt. of the mixture is blended with 1-15wt.% of glass powder such as borosilicate glass having >=200mum particle size, 1-5wt.% metal Ti powder and the rest of Al and/or Si or 2-15wt.% of metal powder composed of Al-Mg to give a mixture. Then the blend is kneaded, molded, dried and hardened to produce neutral carbon-containing refractory.

8. 发明专利

JPH05221722A STOCK FOR REFRACTORY AND REFRACTORY USING THE SAME 失效
公开(公告)号：JPH05221722A
公开(公告)日：1993-08-31
申请号：JP5733192
申请日：1992-02-12
申请人： NIPPON STEEL CORP
发明人： MATSUI TAKESHI , TAIRA HATSUO , TAKEUCHI KAZUHIKO , NAKAO ATSUSHI
IPC分类号： C04B35/103 , C04B35/10 , C04B35/56 , C04B35/565 , C04B35/626
摘要： PURPOSE:To provide stock for refractories ensuring oxidation resistance to a molten metal and a dense refractory structure and to provide refractories having thermal shock resistance, excellent oxidation and corrosion resistance by using the stock. CONSTITUTION:Silicon carbide-based refractory starting materials are coated with one or more among Al, Mg, Zr, Ti, Ca and Cr to obtain stock for refractories and alumina and graphite are incorporated into the stock. This stock is, if necessary fired at >=400 deg. if necessary to obtain the objective refractories.

9. 发明专利

JPH05221706A REFRACTORY USING CARBON-CONTAINING STARTING MATERIAL FOR REFRACTORY 失效
公开(公告)号：JPH05221706A
公开(公告)日：1993-08-31
申请号：JP5918192
申请日：1992-02-14
申请人： NIPPON STEEL CORP
发明人： TAKEUCHI KAZUHIKO , TAIRA HATSUO , NAKAO ATSUSHI , MATSUI TAKESHI
IPC分类号： C04B35/00
摘要： PURPOSE:To form a dense structure and to improve resistance to oxidation, corrosion, thermal shock and slag penetration by blending specified electromelted clinker. CONSTITUTION:Electrofused clinker contg. one or more kinds of oxides such as magnesia, alumina, zirconia and chromia in the chemical compsn. and having 0.1-5wt.% carbon content and =60wt.% of this clinker is blended with a phenolic binder.

10. 发明专利

JPH05294764A 失效
公开(公告)号：JPH05294764A
公开(公告)日：1993-11-09
申请号：JP12539192
申请日：1992-04-20
申请人： NIPPON STEEL CORP
发明人： MATSUI TAKESHI , TAIRA HATSUO , TAKEUCHI KAZUHIKO , NAKAO ATSUSHI
IPC分类号： C04B35/103 , C04B35/71 , C04B41/50 , C04B41/85
摘要： PURPOSE:To improve oxidation resistance by impregnation treating a refractory, obtained by kneading each of a specific quantity of an Al2O3-kind fire-proofing raw material, a SiC-kind fire-proofing raw material and graphite, molding and firing in a non-oxidizing atmosphere at a prescribed temp., with multiple alkoxide. CONSTITUTION:The Al2O3-kind fire-proofing raw material of 60-90 pts.wt. (hereafter pts.) having >=95% purity, the SiC-kind fire-proofing raw material of 5-20 pts. having >=90% purity and graphite of 5-20 pts. having >=90% purity where particle diameter of these raw materials is =600 deg.C. After that, the multiple alkoxide having magnesium-aluminum spinel composition is impregnated into the fired material, is uniformly dispersed inside of the fired material and by heat treating, magnesium-aluminum spinel is formed and the carbon-containing refractory excellent in oxidation resistance and corrosion resistance is obtained.

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