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公开(公告)号：JPH10144967A
公开(公告)日：1998-05-29
申请号：JP31012396
申请日：1996-11-06
Applicant: NHK SPRING CO LTD
Inventor： TERAKADO KENJI , AYADA TOMOHIKO , SATO SHIGEMI
Abstract: PROBLEM TO BE SOLVED: To provide a thermoelectric element module for cooling that is simple in structure, achieves a high cooling performance, is of high quality, and have a high productivity. SOLUTION: A metal substrate whose surface is subjected to insulation treatment is used on substrates 2 and 3, and an electrode film is bonded to it using a thermally conductive adhesive with a direct thermal conductivity of 0.1W/mK or higher, thus improving the cooling characteristic with a simple structure, improving the junction strength, and achieving miniaturization. Especially, by setting the thickness of the adhesive to 10μm or less, strength is improved and a thermal deformation prevention effect is improved. Further, by forming a recessed part for accepting a thermoelectric element 1 individually and positioning it on the surface of the substrates 2 and 3, ease of assembly, namely productivity and position accuracy of the thermoelectric element are improved. A junction area increases and hence junction strength is improved, further the mechanical strength due to the engagement of recess and projection is improved, and hence the strength of the entire module is improved. Then, a module can be miniaturized in a height direction by the amount corresponding to part recessed, thus further promoting the miniaturization of the module.
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公开(公告)号：JPH07138067A
公开(公告)日：1995-05-30
申请号：JP8381694
申请日：1994-03-29
Applicant: NHK SPRING CO LTD
Inventor： SATO SHIGEMI , AKI MINCHIYORU , KOBAYASHI YASUYOSHI , ANDOU CHIYUU
Abstract: PURPOSE:To obtain a ceramic spring causing no decline in its mechanical strength even in an atmosphere at elevated temperatures, low in elastic modulus, and improved in both fracture stress and flexural strength, by heat treatment of a composite sintered compact prepared by dispersing fine carbide particles in a matrix consisting of mullite. CONSTITUTION:Firstly, a matrix consisting of mullite is subjected to wet mixing with fine powder of at least one kind of carbide selected from among TiC, SiC, VC, NbC, B4C, TaC, WC, HfC, Cr2C2 and ZrC, followed by drying into mixed powder. Second, the mixed powder is hot-pressed to produce a composite sintered compact, which is then heat treated at temperatures >=1200 deg.C but not higher than the sintered temperature to obtain the objective ceramic spring material. Finally, this material is formed to a desired shape to obtain the other objective ceramic spring.
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公开(公告)号：JPH01110907A
公开(公告)日：1989-04-27
申请号：JP26833087
申请日：1987-10-26
Applicant: NHK SPRING CO LTD
Inventor： ADACHI RYUJI , NAKATANI MASAHIKO , SATO SHIGEMI , TONO TOYOYUKI , NOMURA HIDE , ADACHI RYUSUKE
IPC: B28B1/40
Abstract: PURPOSE:To prevent wire from breaking, deforming and the like and consequently reduce the scattering in shape by a method wherein organic material for giving formability and water are added to ceramic powder so as to kneaded one another, formed in wire and dried and, after that, immersed in solvent so as to be given plasticity. CONSTITUTION:Ceramic powder, the which organic material for giving formability and water as its solvent are added and kneaded, is extruded with a die in the form of wire. The wire is dried so as to fully shrink on drying. Next, the dry wire is immersed in coiling solvent. The, wire, which is given plasticity by being immersed in the coiling solvent, is coiled round a mandrel and, after that, dried and finally the resultant formed body in coiled form is removed from the mandrel. As the resultant formed body, almost no shrinkage on drying after coiling develops and the breakage and deformation at the inside of the coil of the wire are little. Further, scattering in shape is little even in comparison among a large number of formed bodies.
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公开(公告)号：JPS6267159A
公开(公告)日：1987-03-26
申请号：JP20632685
申请日：1985-09-20
Applicant: NHK SPRING CO LTD , SUMITOMO SPEC METALS
Inventor： HANAKI KOUJI , KATO KENZO , TONO TOYOYUKI , SATO SHIGEMI , SUZUKI KIKUO
Abstract: PURPOSE:To increase the shape restoring power in the circumferential direction and to obtain strong tightening power in the circumferential direction by cutting off the bottom of a cup-shaped intermediate product obtd. by deep drawing in a prescribed limit drawing ratio. CONSTITUTION:A plate of a shape memory alloy is deep drain in
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公开(公告)号：JP2004315839A
公开(公告)日：2004-11-11
申请号：JP2003107307
申请日：2003-04-11
Applicant: Nhk Spring Co Ltd , 日本発条株式会社
Inventor： CHIBA MASAHIKO , ONO YOSHIKI , SATO SHIGEMI , AYADA TOMOHIKO , SUZUKI TAKESHI , KAI MORIMICHI
Abstract: PROBLEM TO BE SOLVED: To provide a Co-Cr-Mo-based fine wire superior in biocompatibility, corrosion resistance, abrasion resistance, workability and flexibility, to provide a manufacturing method therefor, and to provide a sheet-shaped body or the like formed of the fine wire. SOLUTION: The fine wire comprises 26-31 mass% Cr, 8-16 mass% Mo and the balance Co with unavoidable impurities; has a diameter of 200 μm or smaller; has a circularity (minor diameter/major diameter) of a cross section of 0.6 or more; and has a uniform inner structure having a ratio of a concentration in a high Mo phase to that in a low Mo phase in an amount of 1.8 or less. COPYRIGHT: (C)2005,JPO&NCIPI
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Patent Agency Ranking6.发明专利
公开(公告)号：JP2004035974A
公开(公告)日：2004-02-05
申请号：JP2002197142
申请日：2002-07-05
Applicant: Daido Steel Co Ltd , Nhk Spring Co Ltd , Tohoku Nippatsu Co Ltd , 大同特殊鋼株式会社 , 日本発条株式会社 , 東北日発株式会社
Inventor： CHIBA MASAHIKO , TAKEDA SHIRO , AYADA TOMOHIKO , SATO SHIGEMI , UEDA SHIGENORI , NODA TOSHIHARU
CPC classification number: C22C30/00 , C22C19/055 , C22C19/056 , C22C19/07 , C22F1/10
Abstract: PROBLEM TO BE SOLVED: To provide a precipitation strengthening type Co-Ni-based heat resistant alloy, to be more specific, the precipitation strengthening type Co-Ni-based heat resistant alloy which has Co
3 Mo or Co
7 Mo
6 precipitated in an interface between a fine twin structure and a parent phase, and is suitable for a spring, a bolt or the like used in a site exposed to a high temperature such as an engine exhaust system and a perimeter of a gas turbine, and to provide a manufacturing method therefor.
SOLUTION: This alloy comprises, by wt.%, 0.05% or less C, 0.5% or less Si, 1.0% or less Mn, 25-45% Ni, 13-22% Cr, 10-18% of Mo+1/2W, 0.1-5.0% Nb, 0.1-5.0% Fe, further one or more elements of 0.007-0.10% REM, 0.001-0.010% B, 0.0007-0.010% Mg, and 0.001-0.20% Zr, and 0.1-3.0% Ti as needed, and the balance Co with unavoidable impurities, and has a structure in which Co
3 Mo or Co
7 Mo
6 is precipitated in the interface between the fine twin structure and the parent phase.
COPYRIGHT: (C)2004,JPO-
公开(公告)号：JP2002097537A
公开(公告)日：2002-04-02
申请号：JP2000282868
申请日：2000-09-19
Applicant: NHK SPRING CO LTD , TOHOKU NIPPATSU CO LTD , DAIDO STEEL CO LTD
Inventor： CHIBA MASAHIKO , TAKEDA SHIRO , SATO SHIGEMI , UEDA SHIGENORI , NODA TOSHIHARU , OKABE MICHIO
Abstract: PROBLEM TO BE SOLVED: To provide a heat resistant alloy which has higher strength than a conventionally used Ni-based super heat-resistant alloy, and keeps the strength even after use at high temperatures for a long time, and a manufacturing method therefor. SOLUTION: This Co-Ni based heat resistant alloy includes 0.05% or less C, 0.5% or less Si, 1.0% or less Mn, 25-45% Ni, 13 to less than 18% Cr, 7-20% Mo+1/2W in one or two kinds of Mo and W, 0.1-3.0% Ti, 0.1-5.0% Nb, 0.1-5.0% Fe, by weight %, and Co and inevitable impurities as the balance.
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公开(公告)号：JP2542641B2
公开(公告)日：1996-10-09
申请号：JP26832887
申请日：1987-10-26
Applicant: NHK SPRING CO LTD
Inventor： NAKATANI MASAHIKO , SATO SHIGEMI , TONO TOYOYUKI , NOMURA HIDE , ADACHI RYUSUKE
IPC: C04B35/626 , C01B21/068 , C04B35/58 , C04B35/622 , C04B35/628
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公开(公告)号：JPH05174884A
公开(公告)日：1993-07-13
申请号：JP34304891
申请日：1991-12-25
Applicant: NHK SPRING CO LTD
Inventor： KATO SUNAO , SATO SHIGEMI , KAYAMOTO TAKASHI , MIYAHARA JUNICHI
IPC: H01R43/02
Abstract: PURPOSE:To feed a specific amount of brazing material to a specific position accurately and easily. CONSTITUTION:A connector main body 11 consists of a ceramics as an insulator, and a through hole 15 is formed therein. A conductor pin 12 is inserted to the through hole 15, and soldered to the connector main body 11. A brazing material 30 before heating has a coil form, and it is installed to a specific position of the conductor pin 12. The brazing material 30 is housed in a diameter expanding part 20 provided at the upper end side of the through hole 15. After the conductor pin 12 to which the brazing material 30 is installed to a specific position is set in the through hole 15 in such a way, it is heated, and the brazing material 30 is let flow to the lower side of the through hole 15 by utilizing the dead weight of the molten brazing material 30, so as to carry out the brazing.
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公开(公告)号：JPH04209587A
公开(公告)日：1992-07-30
申请号：JP40538190
申请日：1990-12-05
Applicant: NHK SPRING CO LTD
Inventor： SAITO SHINJI , TANGE AKIRA , KATO SUNAO , KAYAMOTO TAKASHI , SATO SHIGEMI
Abstract: PURPOSE:To improve heat radiation property and improve the adhesion by temperature change by using glass, where ceramic particles are dispersed, for an insulating layer. CONSTITUTION:First, metallic alkoxide solution is applied on the surface of a metallic base material layer 2, and this substrate 1 is dried at, for example, approximately a room temperature to 200 deg.C, and then it is heated in atmospheric temperature, and kept at a specified temperature for, for example, ten minutes, and then it is cooled at a speed of specified temperature per minute, thus a metallic oxide layer 3 is baked. Next, at the surface of this metallic oxide layer 3 is printed the screen of paste, wherein ceramic Al2O3 particles and lead borosilicate crystallized glass powder are dispersed uniformly in vehicle consisting of an organic solvent at the ratio of 1:1 in this case, by raising the temperature at a speed of, for example, 35 deg.C per minute so as to bake an insulating layer 4.
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