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1. 发明专利

JP2007308990A Tunnel construction method and tunnel where the method is implemented 审中-公开
标题翻译：隧道施工方法和隧道施工方法实施
公开(公告)号：JP2007308990A
公开(公告)日：2007-11-29
申请号：JP2006139964
申请日：2006-05-19
申请人： Nagoya Doro Engineer Kk , Nisshin Kokan Kk , Nisshin Steel Co Ltd , Non-Destructive Inspection Co Ltd , Oyo Corp , 名古屋道路エンジニア株式会社 , 応用地質株式会社 , 日新製鋼株式会社 , 日新鋼管株式会社 , 非破壊検査株式会社
发明人： OTSUKA YASUNORI , MATSUZAWA HIDETOSHI , MORI MASASHI , YABUSHITA HIDEKI , TANASE HIROYUKI , NAKAKO TAKEFUMI , MATSUBARA SHIGEO , INOUE SHOJI , KIKKO TOSHIHARU
IPC分类号： E21D9/00 , E21D20/00 , G01L5/00
摘要： PROBLEM TO BE SOLVED: To provide a tunnel construction method which is implemented by employing a simple structure at a low cost, and allows the substantial monitoring of a tunnel, and to provide the tunnel where the method is implemented.
SOLUTION: An ultrasonic axial force measuring rock bolt 10 of a steel pipe expanding type is driven into a tunnel internal wall, and tunnel excavation is carried out while an axial force generated at a rock bolt by the displacement of the tunnel internal wall is monitored. The rock bolt is formed of an expandable steel pipe 20 and a measuring rod 50 having a plurality of gauge marks 55 for measuring the axial force. Then the rock bolt is driven into the tunnel internal wall as part of timbering, and expanded to make intimate contact with the natural ground. Further, axial force distribution generated at the rock bolt is reflected to the designing of the timbering. Specifically, after driving/expansion, the monitoring of the axial force generated at the rock bolt is started, ultrasonic waves are made to fall on the measuring rod via an entrance portion 11 as an exposed section of the measuring rod, and receiving time differences of reflected waves are obtained from the gauge marks 55, to thereby calculate the axial force distribution.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过以低成本采用简单结构实现的隧道施工方法，并且允许隧道的实质监控，并提供实施该方法的隧道。解决方案：将钢管膨胀型的超声波轴向力测量岩石螺栓10驱动到隧道内壁中，并且通过隧道内壁的位移在岩石锚杆产生的轴向力进行隧道掘进被监视。岩石锚杆由可膨胀钢管20和具有用于测量轴向力的多个标记55的测量杆50形成。然后将岩石螺栓作为木材的一部分进入隧道内壁，并扩大以与自然地面紧密接触。此外，在岩石锚杆处产生的轴向力分布反映到木材的设计中。具体来说，在驱动/膨胀后，开始对在岩石锚杆产生的轴向力的监视开始，通过作为测量棒的露出部的入口部11使超声波落在测量杆上，并且接收时间差从标尺55获得反射波，从而计算轴向力分布。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JPH10237591A METAL STRIP FOR ROLL FORMING 失效
公开(公告)号：JPH10237591A
公开(公告)日：1998-09-08
申请号：JP5714097
申请日：1997-02-26
申请人： NISSHIN STEEL CO LTD
发明人： NAKAKO TAKEFUMI , NAKAHARA NORIYUKI , INOUE SHOJI
IPC分类号： C22C38/00
摘要： PROBLEM TO BE SOLVED: To avoid the occurrence of pocket wave in a roll forming stage with certainty by selecting manufacturing conditions so that the tensile strength and compressive strength, in a longitudinal direction, of a metal take values in specific ranges, respectively. SOLUTION: A stock is used at the time of forming a metal strip into a wide-cross-section product by roll forming. The absolute value of the yield stress when the stock is compressed in a longitudinal direction is regulated so that it is >=92% of the value of the yield stress when the stock is stretched in a longitudinal direction. These yield stresses can be replaced by the proof stress at 0.2% contraction or the proof stress at 2% elongation. A formed product obtained by roll forming is a wide-cross-section product having a flat part with a length >=90 times the plate thickness in a width direction. The proof stress at contraction does not take a value lower than the proof stress at stretching by >30MPa. The material of the stock is plain steel or stainless steel. By this method, restrictions in product shape can be avoided, and the necessity of particular countermeasures to forming means and equipment can be obviated.

3. 发明专利

JPH09267177A MANUFACTURE OF STEEL-MADE DOOR EXCELLENT IN CORROSION RESISTANCE 失效
公开(公告)号：JPH09267177A
公开(公告)日：1997-10-14
申请号：JP10388896
申请日：1996-03-29
申请人： NISSHIN STEEL CO LTD
发明人： INOUE SHOJI , FUKUMURA KATSUHIKO , NOBUTOKI TOMOKAZU
IPC分类号： E06B3/76 , B23K9/00 , B23K9/025 , B23K9/23 , B23K35/30 , B23K103/18 , B23P21/00
摘要： PROBLEM TO BE SOLVED: To manufacture a steel-made door in the high productivity by enabling bending after welding. SOLUTION: A stainless steel sheet and a plated steel sheet are butt-welded by using a adding metal so that Ni equivalent of welding metal satisfies Ni equivalent equal to and above 0.7×Cr equivalent + 20, and after forming these sheets to one of the steel sheet, the steel sheet is worked to the longitudinal frame of the door or the door sheet by cutting, bending, welding, etc., and the door is assembled so that the stainless steel part positions the longitudinal frame or the lower part of the door. By this method, the welded metal excellent in the ductility is formed and the crack is not developed at the time of bending.

4. 发明专利

JPH08243637A MANUFACTURE OF METALLIC WELDED TUBE 失效
公开(公告)号：JPH08243637A
公开(公告)日：1996-09-24
申请号：JP7236895
申请日：1995-03-06
申请人： NISSHIN STEEL CO LTD
发明人： ERIGUCHI TORU , INOUE SHOJI
IPC分类号： B21C37/08 , B21C9/00 , B21C43/00 , B21D5/10
摘要： PURPOSE: To manufacture a welded tube of excellent quality free from surface flaws or defective welds by the die draw forming method. CONSTITUTION: In manufacturing a welded tube 1c by forming a metallic strip 1 to be cylindrical by a forming die 20 having a through hole to achieve the contraction from the inlet side toward the outlet side, and welding an edge part on each side, the water-soluble lubricant 16 of 15-30vol.% in concentration is applied to the overall surface of a metal strip 1 which is on the outer side of the welded tube 1c by a lubricant applying equipment 10 arranged on the inlet side of the forming die 20, and the water-soluble solution adhered to the cylindrical metal strip 1 immediately after leaving the forming die 20 is removed by a wiping equipment 30. The surface of the cylindrical metallic strip 1 is heated and dried by a heating machine 35 after the water-soluble lubricant is wiped. Because the water-soluble lubricant 16 is not brought into the welded zone, the weld zone free from defects such as blowholes attributable to the gasification of water contents.

5. 发明专利

JPH07265941A MANUFACTURE OF WELDED TUBE EXCELLENT IN WORKABILITY BY ROLLESS TUBE MANUFACTURING METHOD 失效
公开(公告)号：JPH07265941A
公开(公告)日：1995-10-17
申请号：JP6091194
申请日：1994-03-30
申请人： NISSHIN STEEL CO LTD
发明人： ASADA HIROSHI , SOGA SATOSHI , INOUE SHOJI
IPC分类号： B21C37/08 , B23K26/21 , B23K26/00
摘要： PURPOSE:To provide a welded tube excellent in workability where no crack is generated in the weld zone during the working by the rollless tube manufacturing method. CONSTITUTION:When both end parts in the width direction of a metal strip 2 formed by the rolless tube manufacturing method is butt-welded by the laser beam welding, the relationship HVS=f(r/t) between the ratio r/t and the hardness of the base metal HVS, and the relationship HVW=g(P/V) between the ratio P/V and the hardness HVW of the weld zone are satisfied where r(mm) is the radius of a bending roll 4, (t)(mm) is the thickness of the metal strip 2, P(kW) is the output of a laser beam welding equipment, and V(m/minute) is the tube manufacturing speed. The radius (r) and thickness (t) are determined so that the ratio r/t may be kept in the range of 12-40, and the ratio PN is determined so that the difference DELTAHV=(=HVW-HVS) between the hardness HVS of the base metal of the obtained welded tube and the hardness HVW of the weld zone may be 10-80.

6. 发明专利

JPH0452283A PRODUCTION OF MATERIAL HAVING FERROMAGNETIC AREA 失效
公开(公告)号：JPH0452283A
公开(公告)日：1992-02-20
申请号：JP16312990
申请日：1990-06-21
申请人： NISSHIN STEEL CO LTD
发明人： INOUE SHOJI , TAKEZOE AKINOBU , FUKUMURA KATSUHIKO
IPC分类号： C23C26/00 , C23C30/00
摘要： PURPOSE:To enable accurate poatting of a fine pattern which gives high magnetic variation rate by melting ferrite-producing material provided on the surface of an austenite steel base body with a heat source of high energy density to make an alloy so that a ferrite phase is partially formed on the surface. CONSTITUTION:The surface of an austenite steel base body is coated with a ferrite-producing material. Then at least the surface of the base body is molten along a specified pattern C with a heat source of high energy density. Thereby, the ferrite-producing material is changed into an alloy with the base body, which partially gives a ferrite phase. Thus, an alloy area having high ferrite content and little variation in the ferrite content in the area can be formed.

7. 发明专利

JPH0299224A MANUFACTURE OF THIN-WALLED METALLIC TUBE 失效
公开(公告)号：JPH0299224A
公开(公告)日：1990-04-11
申请号：JP24946588
申请日：1988-10-03
申请人： NISSHIN STEEL CO LTD
发明人： NAKAKO TAKEFUMI , MIURA NORIMASA , INOUE SHOJI , TAKEZOE AKINOBU
IPC分类号： B21D5/12 , B21C37/06
摘要： PURPOSE:To prevent butted parts from forming a chevron-shaped state and unstable welding from occurring by bending both edge parts of metallic plate with one or more sets of forming rolls directly before the metallic plate is formed into a tubular form so as that the surface making the inside of a tube becomes the inside of the metallic plate. CONSTITUTION:In the metallic plate 1 through stages of plastic bending and unbending, both its edge parts are bent by one or more sets of forming rolls 8 through a bending roll 2 of small diameter in the width direction so that the surface making the inside of the tube becomes the inside of the metallic plate. Then, before the metallic plate arrives at seam guide rolls 9 provided at a position more than the times the diameter of the metallic tube be manufactured far from the bending roll, a tubular state bent to a product curvature in the width direction is obtained by the width direction residual curvature generated by plastic bending and unbending. The position of the edge is controlled by the seam guide rolls 9, the butted parts of the metallic plate 1 formed in the tubular form after it passes squeeze rolls 10 are welded and joined by a welding torch 11 to each other and then transferred and ejected by an urethane rubber lining pinch roll 12.

8. 发明专利

JPS6440187A MANUFACTURE OF TITANIUM CLAD MATERIAL 失效
公开(公告)号：JPS6440187A
公开(公告)日：1989-02-10
申请号：JP19271887
申请日：1987-08-03
申请人： NISSHIN STEEL CO LTD
发明人： INOUE SHOJI , TAKEZOE AKINOBU , MORI SUENORI
IPC分类号： B23K20/00 , B23K20/04
摘要： PURPOSE:To obtain clad material with high joining strength by heating an Al coated steel strip to the specific temperature range and superposing a Ti strip with specific thickness thereon and welding these with pressure by rolling at the specific reduction of area range to eliminate Ti combination of Fe and C of base metal. CONSTITUTION:The Al coated steel strip which has been plated with pure Al or has been clad with a pure Al strip on its surface or has been immersed in molten Al is heated to 300-500 deg.C in the air or a nonoxidizing atmosphere. Afterward, the Ti strip or Ti alloy strip with the thickness 0.1-5mm is immediately superposed thereon and rolled at the reduction of area range of 10-50% and welded with pressure. This welded strip with pressure is finished by cold or warm rolling so that the rolling rate 20-50% in total is attained. A Ti combination fragile intermetallic compound by Fe and C of the base metal is prevented from forming by interposing Al and the Ti clad material with the high joining strength is obtained.

9. 发明专利

JPS62124219A TIG WELDING PROCESS METHOD FOR FERRITIC STAINLESS STEEL SHEET 失效
公开(公告)号：JPS62124219A
公开(公告)日：1987-06-05
申请号：JP26155485
申请日：1985-11-22
申请人： NISSHIN STEEL CO LTD
发明人： INOUE SHOJI , MORI SUENORI , TAKEZOE AKINOBU
IPC分类号： C21D8/00
摘要： PURPOSE:To enable deformation working of the titled sheet without causing embrittlement racking after high speed welding, by reducing diffusive hydrogen quantity at weld zone to a prescribed range corresponding to working stress quantity by previous dehydrogenation treatment, in deformation working of the steel sheet welded with shield gas contg. H2. CONSTITUTION:Ferritic stainless steel sheet is TIG welded to body having a primary fixed shape by using gaseous mixture of inert gas and H2 as shield gas, and is deformation worked to a secondary prescribed shape. At this time, the welded body is dehydrogenation treated so that approvable residual diffusion hydrogen quantity (Y cc) per 100g metal of welded body is in the ranges of formulas I-IV at each division of stress quantity (X %) of deformation working, then deformation worked. Namely, it is in the range of Y of the formula I in case i) 15%>=X>=5%, the formula II in case ii) 5%>=X>=1.0%, the formula III in case iii) 1.0%>=X>=0.5%, the formula IV in case iv) 0.5%>=X>=0.1%.

10. 发明专利

JP2003239019A METHOD FOR MANUFACTURING ELECTROSEAMED FERRITIC STAINLESS STEEL TUBE WITH EXCELLENT WORKABILITY 审中-公开
公开(公告)号：JP2003239019A
公开(公告)日：2003-08-27
申请号：JP2002039999
申请日：2002-02-18
申请人： NISSHIN STEEL CO LTD
发明人： INOUE SHOJI , TARUMI KAZUMASA
IPC分类号： B21C37/08 , B23K31/00 , B23K101/06 , C21D9/08 , C21D9/50
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a welded tube at a low cost while securing workability by partly altering a conventional tube making method using high-frequency welding. SOLUTION: When butt-forming a ferritic stainless steel strip into circular cross-sectional form and applying high-frequency welding to the butt zone to manufacture the steel tube, cooling is performed, after the welding, at (70 to 700)°C/sec average cooling rate from welding temperature to 700°C by applying heat retention or heating to a weld zone. By this method, structure can be recovered while preventing the coarsening of crystal grains by the cooling at the cooling rate within a proper range, and as a result, toughness at low temperature can be improved. COPYRIGHT: (C)2003,JPO

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