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1. 发明专利

JPH09279763A BUILDING PANEL AND BUILDING USING IT 失效
公开(公告)号：JPH09279763A
公开(公告)日：1997-10-28
申请号：JP11702896
申请日：1996-04-15
申请人： NIPPON STEEL CORP , NIKKEN BIRUKON KK
发明人： KURIYAMA MITSUNORI , ANDO KEIJI , TONAI SHIGEAKI , KITAMURA OSAMU , HAYASHI SHIGEO , MIYASHITA TADAHIRO , NISHIKAWA HIROKATSU , SUZUKI MASAYOSHI
IPC分类号： E04B1/04 , E04C2/38
摘要： PROBLEM TO BE SOLVED: To provide a high strength by connecting a vertical frame member or horizontal frame member formed of channel steel to an L-shaped connecting hardware by a high strength bolt to form a structural frame, fixing an interior material and a facing material to the inside and outside flanges of the structural frame by small screws. SOLUTION: Each frame member such as a vertical frame member 1 or horizontal frame member 2 formed of channel steel is arranged so that the web is turned in panel thickness direction, and mutually bonded by an L-shaped connector 5 and a high strength bolt to form a structural frame. An interior material and a facing material are fixed by small screws to the inside flange and outside flange of the vertical frame member 1 or the horizontal frame member 2 to form a building panel 17, and a wall part and a roof part are formed by use of the building panels 17. The upper end part of the wall part building panel 17 is bolted to the outer end part of the roof part building panel 17, and the lower end part of the wall building panel 17 is bolted to a foundation 18. Thus, this panel is strong to both vertical load and out-of-plane directional load, and a composite panel structure resistant to a large load such as outdoor wind load can be provided.

2. 发明专利

JPS5367611A ANNEALING METHOD FOR WELDED PART OF ELECTRICALLY SEAM WELDED STEEL PIPE 失效
公开(公告)号：JPS5367611A
公开(公告)日：1978-06-16
申请号：JP14361776
申请日：1976-11-30
申请人： NIPPON STEEL CORP
发明人： KAWABATA TOKUFUSA , SUZUKI MASAYOSHI
IPC分类号： B23K31/00 , C21D1/42 , C21D9/08 , C21D9/50
摘要： PURPOSE:To prevent the lowering of the toughness at the welded part, by setting the induced frequency of the high-frequency induction heating apparatus at the optimum value in the relation with the temperature difference between the inner surface and the outer surface of the welded part and the thermal efficiency of output of the induction heating apparatus.

3. 发明专利

JPS61221331A MANUFACTURE OF HIGH STRENGTH AND LOW YIELD RATIO TYPE ELECTRIC WELDED STEEL PIPE HAVING SUPERIOR TOUGHNESS AT LOW TEMPERATURE 失效
公开(公告)号：JPS61221331A
公开(公告)日：1986-10-01
申请号：JP6304485
申请日：1985-03-27
申请人： NIPPON STEEL CORP
发明人： WATABE YOSHIHIRO , IKEMOTO TAKESHI , SUZUKI MASAYUKI , SUZUKI MASAYOSHI
IPC分类号： C22C38/00 , C21D9/08 , C21D9/50 , C22C38/14
摘要： PURPOSE:To manufacture a high strength and low yield ratio type electric welded steel pipe having superior toughness at low temp. by heat treating the weld zone of an electric welded steel pipe made of a hot rolled steel sheet having a specified composition at a temp. close to the Ac3 point of the steel. CONSTITUTION:A hot rolled steel sheet contg. 0.03-0.50% C, 0.70-1.50% Mn and

4. 发明专利

JPS52142612A POSTANNEALER USING HIGH FREQUENCY INDUCTION HEATING 失效
公开(公告)号：JPS52142612A
公开(公告)日：1977-11-28
申请号：JP5908976
申请日：1976-05-24
申请人： NIPPON STEEL CORP
发明人： SATOU TOORU , SUZUKI MASAYOSHI , KAWABATA TOKUFUSA
IPC分类号： H05B6/10 , C21D1/26 , C21D1/42
摘要： PURPOSE:To improve the quality of a seam welded steel pipe in post-annealing the welded part of the pipe by high frequency induction heating, by using an inductor whose width is substantially wider than that of a part of the pipe to be annealed, thereby making a difference in temperature between the inner and outer surfaces of the welded part small.

5. 发明专利

JPH02247032A MANUFACTURE OF DUPLEX PIPE REDUCER FITTING 失效
公开(公告)号：JPH02247032A
公开(公告)日：1990-10-02
申请号：JP6902989
申请日：1989-03-20
申请人： NIPPON STEEL CORP , BENKAN CORP
发明人： INOUE SEISUKE , TAKADA NOBUHIRO , SUZUKI MASAYOSHI , YABE YASUO
IPC分类号： F16L13/02 , B21D41/04 , B21D51/16
摘要： PURPOSE:To prevent the development of fold buckling in an inner pipe by joining deep drawn tip parts of outer and inner face pipes with shrinking diameter pressing work for duplex pipe reducer fitting and executing the deep drawing work while restricting the inner pipe from the inside thereof with a plug hung to a pusher. CONSTITUTION:Only tip parts of deep drawing working side of the outer pipe 1 and the inner pipe 2 are joined with shrinking diameter pressing work of the double pipes for the reducer fitting and further, raw pipe, the inner pipe 2 of which is shorter than the outer pipe 1 at the pressing side, are formed. This raw pipe is received with a die 4 and pressed with the pusher 5 and at the same time, the deep drawing work is executed to the inner pipe 2 while restricting this from the inside with the plug 3 as freely hanging at lower part of the pusher 5. By this method, the double pipe reducer fitting can be manufactured without developing fold buckling in the inner pipe 2.

6. 发明专利

JPH01133624A MANUFACTURE OF TIGHTLY ATTACHED BIMETALLIC CURVED TUBE 失效
公开(公告)号：JPH01133624A
公开(公告)日：1989-05-25
申请号：JP29189687
申请日：1987-11-20
申请人： NIPPON STEEL CORP , DAI ICHI HIGH FREQUENCY CO LTD
发明人： TAKAGISHI MASAAKI , SOUSAI SHIYOUJI , TANAKA TAKASHI , MURAKAMI YASUO , SUZUKI MASAYOSHI , SUZUKI MASAO
IPC分类号： B21D39/08
摘要： PURPOSE:To manufacture a bimetallic curved tube in which an external tube is attached tightly to the external surface of an internal tube by giving internal pressure to the bimetallic curved tube to deform it in a radial and external direction and heating and cooling the circumference of the external tube continuously and annularly in its lengthwise direction. CONSTITUTION:An unattached bimetallic curved tube 1 composed of the external tube 11 and the internal tube 12 is set to a rotary frame 2 to fix a connector 7 and a blind patch 8 to both its ends. A hydraulic device 6 is connected with the connector 7 to fill the internal part of the curved tube 1 with pressure water, plastically deforming pressure is added to the internal tube 12 and the tube is stably and plastically deformed in the radial and outward direction to be pressed against the internal surface of the external tube 11. Simultaneously, one end of a zone to receive diameter- reducing treatment is begun to be heated by a thermally equalizing coil 4, is heated up to a desired temperature, and as so as spray cooling is started, a rotary frame 2 is revolved in an A-direction, the curved tube 1 is moved to the thermally equalizing coil 4 to make a continuous annular heating and cooling. In this way, the external tube 11 is thermally shrunk and attached tightly to the external surface of the internal tube.

7. 发明专利

JPS5121558A 失效
公开(公告)号：JPS5121558A
公开(公告)日：1976-02-20
申请号：JP9363974
申请日：1974-08-15
申请人： NIPPON STEEL CORP
发明人： SUZUKI MASAYOSHI , HAGA HIROTSUGU , OKAMURA TSUYOSHI
IPC分类号： C21D9/08 , B21C37/08 , C21D1/28 , C21D9/50

8. 发明专利

JPH064190B2 失效
公开(公告)号：JPH064190B2
公开(公告)日：1994-01-19
申请号：JP21418889
申请日：1989-08-22
申请人： NIPPON STEEL CORP
发明人： HOSHINO YOSHIMITSU , SUZUKI MASAYOSHI , MURAKAMI YASUO
IPC分类号： B23K9/02 , B23K9/028 , B23K9/23

9. 发明专利

JPH0381069A TUBE END SEAL WELDING METHOD FOR CORROSION RESISTANT DUPLEX TUBE 失效
公开(公告)号：JPH0381069A
公开(公告)日：1991-04-05
申请号：JP21418889
申请日：1989-08-22
申请人： NIPPON STEEL CORP
发明人： HOSHINO YOSHIMITSU , SUZUKI MASAYOSHI , MURAKAMI YASUO
IPC分类号： B23K9/02 , B23K9/028 , B23K9/23
摘要： PURPOSE:To prevent the occurrence of weld defects and weld metal cracking by forming a gap on an inner and outer tube boundary of tube ends and then, subjecting the interval between the tube end face of an outer tube and the outer peripheral surface of an inner tube to fillet welding with material of the same system as the inner tube. CONSTITUTION:The outer pipe 2 is fitter to the inner tube 3 on the duplex tube 1 and the inner tube 3 is exposed on the tube end. The outer peripheral surface 5 of the inner tube 3 is tack-welded with material of the same system as the inner tube 3 and the diameter of the exposed part of the inner pipe 3 is reduced by solidification and shrinkage of position beads 6 to form the gap 7 on the inner and outer tube boundary. The interval between the tube end face of the outer tube 2 and the outer peripheral surface 5 of the inner tube 3 is subjected to fillet welding with material of the same system as the inner tube 3 to form a fillet welded zone 8. By this method, the occurrence of the weld defects and weld metal cracking are prevented. Afterward, cladding by multilayer welding is performed to form a multilayer welded zone 9.

10. 发明专利

JPH01254834A INSPECTION METHOD FOR DOUBLE TUBE 失效
公开(公告)号：JPH01254834A
公开(公告)日：1989-10-11
申请号：JP8355288
申请日：1988-04-05
申请人： NIPPON STEEL CORP
发明人： TAKADA NOBUHIRO , NAOI HISASHI , SUZUKI MASAYOSHI
IPC分类号： G01M3/28
摘要： PURPOSE:To easily inspect an inner tube by making the interface gap of an inner tube and outer tube vacuum, detecting the absence of the penetration defect of the inner tube and measuring the degree of the integration of the inner and outer tubes by leading a gas into the interface gap in case of no defect being detected. CONSTITUTION:The position of a water tank 7b is decided so that the water level of the pipet 7a for the volume measurement is located at an optimum position in the state of making an interface gap 1c and pipe lines 4a-4d in an atmospheric pressure by opening stop valves 3a, 3b and a relief valve 8 at the beginning. The valve 8, 3b are then closed, a vacuum pump 6 is actuated and the absence of the inner tube damage is inspected by monitoring the vacuum state of the parts of the gap 1c and pipe lines 4a, 4c by a vacuum gage 5. And when the soundness of the inner tube is confirmed, the valve 3a is closed, the pump 6 is stopped, the valve 3b is opened and when the gas of the inside of the pipe lines 4b, 4d and pipet 7a is sucked into the gap 1c in a vacuum state, the water level of the pipet 7a varies. The measurement of the gap 1c is therefore unabled by measuring this amount. The penetration defect of the inner tube can thus be easily inspected.

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