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1. 发明专利

JPS59113987A Magnetically driven flash butt welding method 失效
标题翻译： MAGNETICALLY DRIVEN闪光焊接方法
公开(公告)号：JPS59113987A
公开(公告)日：1984-06-30
申请号：JP22456382
申请日：1982-12-21
申请人： Nippon Steel Corp
发明人： SATOU MAKOTO , SAITOU TATSUROU
IPC分类号： B23K11/04
CPC分类号： B23K11/04
摘要： PURPOSE:To improve workability and to obtain good joint performance by winding coils near the welding end faces of pipes or bars, applying opposite magnetic fields to the end faces, and controlling and scattering the molten steel produced by flashing to the outside surface by the effect of the magnetic field. CONSTITUTION:A coil 12 is wound on each welding material 10, and exciting current is applied thereto from a power source 14 to generate the magnetic pole of the same polarity on the end faces. Current (i) is then conducted in the axial direction of the pipe from a welding power source 16 to oscillate the materials 10 in a direction F1 and to scatter the molten steel produced by flashing in a tangential direction F2, so that the fresh press-contact surfaces are upset. The formation of the magnetic pole is also possible by the magnetic field along the end faces of the pipes or the coils or magnets perpendicular to the plane of the pipes. The exciting current is conducted in the process of flashing. The phases of the welding current and exciting current are synchronously controlled to control the falshing in the same direction in the case of AC welding. The improvement in the joint performance, the considerable improvement in workability and the reduction in the accuracy of the welding end faces are thus made possible.
摘要翻译：目的：为了提高加工性，通过在管子或棒的焊接端面附近卷绕线圈获得良好的接合性能，对端面施加相反的磁场，并通过效果控制和散射由闪光产生的钢水到外表面的磁场。构成：在每个焊接材料10上缠绕线圈12，并且从电源14向其施加励磁电流，以在端面上产生相同极性的磁极。电流（i）然后从焊接电源16在管的轴向上进行，以使材料10沿方向F1振荡，并且通过沿切线方向F2闪烁产生的钢水散开，接触面不安。磁极的形成也可以通过沿着管的端面的磁场或垂直于管平面的线圈或磁体来实现。令人兴奋的电流是在闪烁的过程中进行的。焊接电流和励磁电流的相位同步控制，以便在交流焊接的情况下控制相同方向的软化。因此，能够提高接合性能，可加工性的显着提高和焊接端面的精度的降低。

2. 发明专利

JPS58100624A PRODUCTION OF NI STEEL HAVING HIGH PERFORMANCE FOR STOPPING BRITTLE CRACKING 失效
公开(公告)号：JPS58100624A
公开(公告)日：1983-06-15
申请号：JP19815081
申请日：1981-12-09
申请人： NIPPON STEEL CORP
发明人： SATOU MAKOTO , SOGOU YASUO , KAKO KATSUO
IPC分类号： C22C38/00 , C21D8/00
摘要： PURPOSE:To obtain Ni steel having high performance for stopping brittle cracking by subjecting an Ni steel slab of specific compsns. to finish rolling at specific cumulative drafts in a temp. region of two phases then to quick cooling and tempering. CONSTITUTION:The steel contg. =1 kind among B, Ti, Zr, V, Ta, Ca, rare earth elements, =1 kind among Cu, Cr, Mo, W and the balance Fe is cast. Such ingot is roughly rolled according to need, and the slab is heated to 800- 1,180 deg.C. Thereafter, the slab is subjected to finish rolling at

3. 发明专利

JPS57207156A STEEL FOR WELDED STRUCTURE WITH HIGH COD VALUE AT WELD ZONE 失效
公开(公告)号：JPS57207156A
公开(公告)日：1982-12-18
申请号：JP9044481
申请日：1981-06-12
申请人： NIPPON STEEL CORP
发明人： SATOU MAKOTO , HAJI TOSHIAKI , KANETANI KEN
IPC分类号： C22C38/00 , C22C38/14 , C22C38/54
摘要： PURPOSE:To obtain the titled steel having superior COD at the weld bond zone and giving a weld bond with high toughness at low temp. by specifying the amounts of C, Si, Mn, Al, Zr, total N, P and S, the total amount of Zr, total N and S, and the total amount of impurities. CONSTITUTION:This steel for a welded structure consists of, by weight, =0.20mm. COD at -40 deg.C can be ensured at a thick plate welded joint with 30-60kJ/cm welding heat input, and >=0.15cm COD at -40 deg.C can be ensured at such a joint with 160-220kJ/cm welding heat input.

4. 发明专利

JPS572865A P-CONTAINING CORROSION RESISTANT STEEL WITH HIGH WELDABILITY 失效
公开(公告)号：JPS572865A
公开(公告)日：1982-01-08
申请号：JP7615680
申请日：1980-06-06
申请人： NIPPON STEEL CORP
发明人： SATOU MAKOTO , WATANABE TSUNEYASU , KANETANI KEN , OONO TAKAHIDE
IPC分类号： C22C38/00 , C22C38/06 , C22C38/08 , C22C38/10 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/22 , C22C38/42 , C22C38/44 , C22C38/50 , C22C38/60
摘要： PURPOSE:To obtain a low alloy steel with high weldability and superior corrosion resistance by preparing a steel contg. a specified percentage of C, Si, Mn, P, S, Al and N. CONSTITUTION:A low alloy steel is prepared consisting of

5. 发明专利

JPS56139655A LOW ALLOY STEEL WITH PITTING CORROSION RESISTANCE 失效
公开(公告)号：JPS56139655A
公开(公告)日：1981-10-31
申请号：JP4117380
申请日：1980-04-01
申请人： NIPPON STEEL CORP
发明人： WATANABE TSUNEYASU , MASUDA KAZUHIRO , SATOU MAKOTO , TODOROKI RIICHI , SEKIGUCHI SUSUMU
IPC分类号： C22C38/00 , C22C38/16 , C22C38/60
摘要： PURPOSE:To inexpensively enhance the pitting corrosion resistance of a low alloy steel by adding Cu and P as basic components and further adding a very small amount of Sb, Sn, As or Se. CONSTITUTION:This low alloy steel with pitting corrosion resistance has a composition consisting of

6. 发明专利

JPS54112369A ELECTRIC WELDED STEEL TUBE PROVIDED WITH HIGH TOUGHNESS ELECTRIC WELDED ZONE 失效
公开(公告)号：JPS54112369A
公开(公告)日：1979-09-03
申请号：JP2030078
申请日：1978-02-23
申请人： NIPPON STEEL CORP
发明人： SATOU MAKOTO , IINO MAKIO , HAGA HIROTSUGU , AOKI KAZUO
IPC分类号： B21C37/08 , B23K13/00 , C22C38/00
摘要： PURPOSE:To titled electric welded steel tube provided with improved quality, safety and reliability, containing a chemical composition consisting of iron as the main part, other usual alloy elements, and inevitable impurities; hereupon, the quantities of S and O in these impure elements and of A-group nonmetallic inclusions are respectively settled under individual specific values. CONSTITUTION:The electric welded steel tube is formed from th material whose chemical composition consists of iron as the main part, and other usual alloy elememts, that is C, Si, Mn, and if necessary, Ni, Cr, Mo, Cu, and a little quantity of Al, Nb, V, Ti, etc., and inevitable impurities. And in above impure elements, the content of S is settled under 0.002% and O is settled under 0.004%, and besides, the content of A-group nonmetallic inclusions specified by JIS G 0555 is settled under 0.009%. After normal seam welding is worked on this material, the impact value of the electric welded zone can be stably secured above 2.4 kg.m/cm , depending on the 2 mm V-notch Charpy impact test at the testing temperature -30 deg.C.

7. 发明专利

JPS5445612A LOWWALLOY STEEL FREE OF POSTTSTRESSSREMOVINGGANNEAL EMBRITTLEMENT IN HEAT AFFECTED ZONE 失效
公开(公告)号：JPS5445612A
公开(公告)日：1979-04-11
申请号：JP11155877
申请日：1977-09-19
申请人： NIPPON STEEL CORP
发明人： SATOU MAKOTO , TAKEDA TETSUJIROU , HORITANI TAKAO
IPC分类号： C22C38/00
摘要： PURPOSE:To relieve a low-alloy steel from embrittlement which occurs after stress- removing annealing in the heat affected zone, the content of N and B are lowered and rare earth metals are included. CONSTITUTION:Composition of normal soft steels or high-tension steels is so specified as to contain either less than 0.0035% of N and less than 0.005% of P, or alternatively less than 0.0040% of N, less than 0.005% of P and 0.005% to 0.1% of rare earth metals. The steels thus formulated, after subjection to welding heat cycles and normal treatment of stress-removing annealing, will have an increment of less than 20 deg.C in transitional temperature in the heat affected zone.

8. 发明专利

JPS58163581A TIG PENETRATION WELDING METHOD IN ALL POSITIONS 失效
公开(公告)号：JPS58163581A
公开(公告)日：1983-09-28
申请号：JP4558382
申请日：1982-03-24
申请人： NIPPON STEEL CORP
发明人： SATOU MAKOTO , NAMATAME YUTAKA , SHIYOUJI SHIGEJI , ISHIDA YOUICHI
IPC分类号： B23K9/16 , B23K9/167 , B23K9/23 , B23K35/30
摘要： PURPOSE:To enable penetration wleding of steel pipes of thick-walled materials easily in all butt positions, by using a high S filler wire contg. S in a specific range in automatic TIG welding. CONSTITUTION:Steel pipes of >=3mm. wall thickness are automatically TIG- welded in all butt positions by using a filler wire regulated to 0.015-0.030% S, and the content of S in weld metal is controlled to 0.012-0.025%, whereby the permissible range of the current value at which a penetration bead of a projecting shape is formed, and the selection of welding conditions is made extremely easy. The use of the high S wire results in the decreased temp. at which the solidification of molten steel is completed, the difficulty in the flow of the molten steel in a molten pool on account of an increased viscosity of the molten steel prior to solidifying, and the possibility of formation of the penetration bead having a projecting shape in a wide current range. If the content of S is

9. 发明专利

JPS5845321A PRODUCTION OF CONTINUOUSLY CAST, ROLLED AND REFINED LOW ALLOY STEEL HAVING LESS INTERNAL DEFECTS CAUSED BY HYDROGEN 失效
公开(公告)号：JPS5845321A
公开(公告)日：1983-03-16
申请号：JP14485181
申请日：1981-09-14
申请人： NIPPON STEEL CORP
发明人： SATOU MAKOTO , SOGOU YASUO , MORIKAWA HIROBUMI , KAKO KATSUO
IPC分类号： B21B3/00 , B22D11/00 , C21D8/00 , C22C38/00
摘要： PURPOSE:To obtain rolled and refined steel of a low alloy having less internal defect caused by hydrogen by casting the molten low alloy steel of a specific compsn. continuously with a limited amt. of hydrogen therein then subjecting the steel to slow cooling, heating, rolling, quick cooling and tempering under limited conditions. CONSTITUTION:The steel contg. =1 kind among Cr, Mo, Cu, W and =5 hours below the Ar1 point and is cooled down to =5% draft in an unrecrystallization temp. region down to the Ar3 point below 900 deg.C. The rolled steel is cooled quickly down to 400 deg.C at >=1 deg.C/sec and is tempered in an early time. According to this method, the continuously cast, rolled and refined steel material having less internal defects is obtained without dehydrogenation annealing.

10. 发明专利

JPS57198212A MANUFACTURE OF HIGH RIGIDITY STEEL PLATE WHICH IS EXCELLENT IN FLEXURAL RIGIDITY 失效
公开(公告)号：JPS57198212A
公开(公告)日：1982-12-04
申请号：JP7938081
申请日：1981-05-27
申请人： NIPPON STEEL CORP
发明人： SATOU MAKOTO , ASAI TOORU , HAYAKAWA HIROSHI
IPC分类号： B21B3/00 , C21D8/02
摘要： PURPOSE:To elevate rigidity without increasing weight of a steel plate, by providing a deviation of thickness to the intermediate part in the width direction and the plate end, in the hot rolling process of soft steel and high tension steel, and also finish-rolling it in an austenite-ferrite coexistent area. CONSTITUTION:In the hot-rolling process of soft steel and high tension steel containing = 5% in the austenite-ferrite coexistent area being = Ar1 critical point, by which a hot-rolling steel plate being excellent in flexural rigidity in the rolling right angle direction is obtained, and its rigidity can be further elevated by executing cold rolling and recovery annealing additionally.

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