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71. 发明专利

JPH07205125A SLURRY CAST MOLDING METHOD FOR CERAMICS 失效
公开(公告)号：JPH07205125A
公开(公告)日：1995-08-08
申请号：JP685594
申请日：1994-01-26
申请人： NIPPON STEEL CORP
发明人： MATSUBAYASHI SHIGEHARU , NOSE TETSUO
IPC分类号： C04B35/622 , B28B1/26 , B28B17/00
摘要： PURPOSE:To form a liquid film for suppressing contamination of a molded form by improving a mold releasing effect when the form after it is solidified by water absorption by ceramic slurry cast molding is released from the form. CONSTITUTION:A method for cast molding ceramic slurry comprises the steps of generating a liquid film of soap solution containing 10ppm or less of alkaline metal such as sodium, potassium, etc., on an inner surface of a form for shaping when ceramic powder is cast in slurry state by water absorption to mold ceramic molded form, and then casting slurrylike ceramics. Thus, crack initiation rate when the form is released from the form can be reduced, and a decrease in physical properties after sintering can be suppressed.

72. 发明专利

JPH07136862A JOINT BODY OF CERAMICS MEMBER AND METAL MEMBER AND JOINTING METHOD 失效
公开(公告)号：JPH07136862A
公开(公告)日：1995-05-30
申请号：JP28152993
申请日：1993-11-10
申请人： NIPPON STEEL CORP
发明人： MATSUBAYASHI SHIGEHARU , NOSE TETSUO
IPC分类号： B23P11/00 , C04B37/02
摘要： PURPOSE:To improve the joint strength in torsion, drawing, etc., by specifying the ratio of the difference between the outside diameter of a projection part made of ceramics and the inside diameter of a recessed part made of metal. CONSTITUTION:Each of a projection part made of ceramics and a recessed part made of metal has a two-stage structure. The projection part consisting of the ceramics member is put within the dimension range at the room temperature before the fitting with the recessed part consisting of the metal member, and the difference ratio between the outside diameter Dc of the projection part consisting of the ceramics member and the inside diameter Dmi of the recessed part consisting of the metal member is prescribed as (Dc-Dmi)X100/Dc, and then the ratio is set to 0.15-0.50% on the large diameter side and set to 0.50-0.85% on the small diameter side. The projection part and the recessed part of these members are fitted, and the restriction in two stages is executed for the using conditions such as the shape before fitting, dimension, and the temperature in fitting, and the influence of the breakage of the contact surface in fitting and the deflection in the vertical direction in insertion can be reduced, and a positioning jig in fitting can be made simple.

73. 发明专利

JPH06293015A MULTILAYER SINTERED STRUCTURE USING POWDER OF CERAMIC OR METAL AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH06293015A
公开(公告)日：1994-10-21
申请号：JP10490493
申请日：1993-04-08
申请人： NIPPON STEEL CORP
发明人： MATSUBAYASHI SHIGEHARU , NOSE TETSUO , KUBO HIROSHI , HARA YOSHIAKI
IPC分类号： B22F7/06 , B28B3/00 , B28B3/02 , B28B11/02 , B30B11/00 , B32B5/16 , B32B5/22 , B32B7/00 , B32B15/02 , B32B18/00 , B32B37/10 , C04B35/64 , C04B37/00
摘要： PURPOSE:To provide a multilayer structure having sufficient joint strength without complicating a process at the time of manufacture regarding ceramics or a metallic material having different specific properties on the inside or the outside or on a surface or a rear and reduce the manufacturing cost by using low-grade powder. CONSTITUTION:A multilayer is embodied through a normally known press method without using a cementing material at the molding stage of ceramics or metal powder, and sintered. Accordingly, a high-quality powder can be employed only in a section, in which high specific properties are required, without complicating processes, thus intending the practical use of a low quality raw material or a raw material for disposal, then embodying the resources saving and the cost reduction.

74. 发明专利

JPH05294731A 失效
公开(公告)号：JPH05294731A
公开(公告)日：1993-11-09
申请号：JP11985392
申请日：1992-04-15
申请人： NIPPON STEEL CORP
发明人： NOSE TETSUO , KUBO HIROSHI
IPC分类号： C04B35/584 , C04B35/58
摘要： PURPOSE:To obtain a high toughness silicon nitride-based sintered compact hardly lowering its mechanical strength even in a hot oxidizing atmosphere by compacting a powdery mixture consisting of erbium oxide, zircon and silicon nitride, sintering the resulting compact, under specified conditions and forming a Zr3Er4O12 crystal phase as a grain boundary phase by a specified means. CONSTITUTION:A powdery mixture consisting of 5-15wt.% erbium oxide (Er2O3) 1-20wt.% zircon (ZrSiO4) and the balance silicon nitride (Si3N4) is compacted. The resulting compact is sintered at 1,700-2000 deg.C in an atmosphere of gaseous nitrogen and a Zr3Er4O12 crystal phase is formed as a grain boundary phase by adopting =2hr within the temp. range of 1,500-1,700 deg.C in a cooling stage after sintering or carrying out reheating by holding for >=2hr within the temp. range of 1,500-1,700 deg.C in a nitrogen atmosphere after sintering.

75. 发明专利

JPH01269506A CUTTING METHOD FOR CERAMICS 失效
公开(公告)号：JPH01269506A
公开(公告)日：1989-10-27
申请号：JP9824988
申请日：1988-04-22
申请人： NIPPON STEEL CORP
发明人： NAKANO TAKETO , ABE KOZO , NOSE TETSUO
IPC分类号： B24B27/06 , B28D5/00
摘要： PURPOSE:To cut ceramics without generating chippings by fixing a dressing material on the ceramics, cutting a revolving whetstone therein simultaneously, processing channels, and then removing remaining grinding margins by grinding. CONSTITUTION:A dressing material 12 is fixed on ceramics 10, and channel processing and ressing are carried out simultaneously by a diamond wheel 8. Channel processing leaving a grinding margin 13 can be carried out without generating chippings created by the tension applied to the ceramics 10 by fixing the dressing material 12 of the ceramics 10, and processing and dressing by means of the diamond wheel 8 can be carried out simultaneously. The grinding margin 13 is removed after said channel processing, and cutting without chippings is carried out.

76. 发明专利

JPS6487559A SILICON CARBIDE-BASED SINTERED BODY AND ITS PRODUCTION 失效
公开(公告)号：JPS6487559A
公开(公告)日：1989-03-31
申请号：JP24356587
申请日：1987-09-30
申请人： NIPPON STEEL CORP
发明人： NOSE TETSUO , FUJII TOSHIMITSU , KUBO HIROSHI
IPC分类号： C04B35/565 , C04B35/56
摘要： PURPOSE:To form the title silicon carbide-based sintered body having high strength at high temp., oxidation resistance, toughness, and reliability from the material contg. a rhenium compd., boron or a boron compd., carbon or a carbon compd., and the balance silicon carbide. CONSTITUTION:The mixed powder consisting of 0.1-30wt.% rhenium compd., 0.2-2.0wt.% of >=1 kind between boron and a boron compd., 0.1-5.0wt.% of >=1 kind between carbon and a carbon compd., and the balance silicon carbide is compacted. The compact is sintered at 1,900-2,300 deg.C in an inert gas other than nitrogen. At least one kind of compd. selected from rhenium silicide, rhenium boride, and rhenium carbide is preferably used as the rhenium compd.

77. 发明专利

JPS63242968A MANUFACTURE OF SILICON CARBIDE BASE SINTERED BODY 失效
公开(公告)号：JPS63242968A
公开(公告)日：1988-10-07
申请号：JP7792687
申请日：1987-03-31
申请人： NIPPON STEEL CORP
发明人： NOSE TETSUO , FUJII TOSHIMITSU
IPC分类号： C04B35/565 , C04B35/56

78. 发明专利

JP2002211981A SHIFT SIDE GUIDE ROLL 失效
公开(公告)号：JP2002211981A
公开(公告)日：2002-07-31
申请号：JP2001001861
申请日：2001-01-09
申请人： NIPPON STEEL CORP
发明人： MATSUBAYASHI SHIGEHARU , NOSE TETSUO , YOSHINO SHINICHI , TSUYUKI AKIRA
IPC分类号： B21B39/14 , C04B35/565 , C04B35/584
摘要： PROBLEM TO BE SOLVED: To provide a shift side guide roll for positioning in the width direction which has excellent mechanical stability and long term durability. SOLUTION: A particle-dispersed silicon nitride sintered body obtained by sintering Cr2N particle-dispersed silicon nitride or a particle-dispersed silicon carbide sintered body obtained by sintering silicon carbide in which one or two kinds of Ti-Zr-B solid solution particles and Ti-Hf-B solid solution particles are dispersed is subjected to forming into a ring shape. This ring is inserted at least into the sliding part with a steel sheet in a metallic shift side guide roll.

79. 发明专利

JP2002093896A ELECTROSTATIC CHUCK AND MANUFACTURING METHOD THEREOF 失效
公开(公告)号：JP2002093896A
公开(公告)日：2002-03-29
申请号：JP2000276194
申请日：2000-09-12
申请人： NIPPON STEEL CORP
发明人： OKITA TAKUSHI , NOSE TETSUO
IPC分类号： B23Q3/15 , C04B35/581 , H01L21/68 , H01L21/683 , H02N13/00
摘要： PROBLEM TO BE SOLVED: To provide a low-cost electrostatic chuck, together with its manufacturing method, which is satisfactory in heat-resistance and corrosion-resistance. SOLUTION: An electrostatic chuck is provided, which comprises a ceramic dielectrics layer 1, a ceramic insulating body substrate layer 2, an internal electrode layer 3 for electrostatic attraction, and an external-connection lead electrode 4 for applying voltage to the internal electrode layer 3. The lead electrode includes a conductive metal silicide.

80. 发明专利

JP2002093550A HEATER BUILT-IN CERAMICS MEMBER AND ITS MANUFACTURING METHOD 失效
公开(公告)号：JP2002093550A
公开(公告)日：2002-03-29
申请号：JP2000276195
申请日：2000-09-12
申请人： NIPPON STEEL CORP
发明人： OKITA TAKUSHI , NOSE TETSUO
IPC分类号： H05B3/20 , C04B35/581 , F27D11/02 , H05B3/03 , H05B3/10 , H05B3/14 , H05B3/18
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive heater built-in ceramics member superior in heat-resistance and corrosion resistance, and provide its manufacturing method. SOLUTION: This is the heater built-in ceramics member composed of a ceramics insulator layer, a heater layer inside the ceramics insulator layer, and a reed electrode for an external connection to supply a current to the heater layer, and the reed electrode comprises including electroconductive metal silicide.

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