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11. 发明专利

JPH0579727B2 失效
公开(公告)号：JPH0579727B2
公开(公告)日：1993-11-04
申请号：JP9105287
申请日：1987-04-15
申请人： NIPPON KOKAN KK
发明人： ONO TADASHI , SUGA MASATAKA
IPC分类号： C21D8/00 , C22C38/00 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/18 , C22C38/60

12. 发明专利

JPH0121848B2 失效
公开(公告)号：JPH0121848B2
公开(公告)日：1989-04-24
申请号：JP15571683
申请日：1983-08-27
申请人： NIPPON KOKAN KK
发明人： SUGA MASATAKA , TAKAHASHI KAZUHIDE , SAKUI ARATA , KUNISADA YASUNOBU , WATANABE ITARU , YAMADA MAKOTO
IPC分类号： C21D8/02

13. 发明专利

JPS6176615A Manufacture of wear resistant steel 失效
标题翻译：耐磨钢的制造
公开(公告)号：JPS6176615A
公开(公告)日：1986-04-19
申请号：JP19863284
申请日：1984-09-25
申请人： Nippon Kokan Kk
发明人： YAMADA MAKOTO , SHIKAUCHI NOBUO , SUGA MASATAKA , UNE MASAO
IPC分类号： C22C38/00 , C21D8/02 , C22C38/14 , C22C38/58
摘要： PURPOSE: To manufacture a wear resistant steel having no defect such as H
2 cracking, etc. superior soundness and small strain quantity, by applying quenching under a suitable condition after completing the hot rolling to a steel slab having a specified compsn. contg. C, Si, Mn, Ti, B, l, N, H.
CONSTITUTION: The steel slab composed of 0.05W0.40wt% C, 0.1W0.8% Si, 0.5%W2.0% Mn, 0.005W0.10% Ti, 0.0005W0.005% B, 0.005W0.10% sol.Al, ≤0.005% N, ≤0.0002% H, under Ti/N ≥3.0, further if necessary, at least one kind among ≤1.0% Cu, ≤1.0% Ni ≤2.0% Cr, ≤1.0% Mo, ≤0.1% Nb, ≤0.1% V, ≤0.01% Ca, ≤0.01% Mg, ≤0.01% rare earth element, and the balance Fe with inevitable impurities is heated to ≥1,000°C temp., then rolled while finishing it at temp. or Ar
3 point or above to obtain a steel material. At quenching said material, it is cooled from temp. of Ar
3 point or above at ≥3°C/sec rate, and the cooling is stopped at 150W300°C temp.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过在完成热轧后的适当条件下对具有规定的组成的钢板进行淬火，制造没有H 2裂纹等缺陷的耐磨钢等优异的良好性和小的应变量。对比 C，Si，Mn，Ti，B，l，N，H组成：由0.05-0.40wt％C，0.1-0.8％Si，0.5％-2.0％Mn，0.005-0.10％Ti，0.0005 -0.005％B，0.005-0.10％sol.Al，<= 0.005％N，<= 0.0002％H，在Ti / N> = 3.0的范围内，进一步如果需要，<= 1.0％Cu， 1.0％Ni <= 2.0％Cr，<= 1.0％Mo，<= 0.1％Nb，<= 0.1％V，<= 0.01％Ca，<= 0.01％Mg，<= 0.01％稀土元素，余量将Fe与不可避免的杂质加热至> = 1000℃，然后在温度下完成轧制。或Ar3点以上，得到钢材。在淬火所述材料时，从温度冷却。的Ar3点以上，> 3℃/秒的速度，冷却停止在150-300℃。

14. 发明专利

JPS6144161A 80kgf/mm2 class high tension steel for high heat input welding 失效
标题翻译： 80KGF / MM2高强度输入焊接高强度钢
公开(公告)号：JPS6144161A
公开(公告)日：1986-03-03
申请号：JP16488384
申请日：1984-08-08
申请人： Nippon Kokan Kk
发明人： SUGA MASATAKA , TAKAHASHI KAZUHIDE , SAKUI ARATA , WATANABE ITARU
IPC分类号： C22C38/00 , C22C38/46
摘要： PURPOSE: To obtain a high tension steel which can be subjected to high heat input welding without deteriorating the toughness of the weld heat-affected zone, the toughness of the base metal or the weldability by specifying a composition characterized by a high carbon equiv., a low carbon content and no boron.
CONSTITUTION: The titled high tension steel consists of >0.06W0.12% C, ≤0.50% Si, 0.50W1.50% Mn, ≤0.010% P, ≤0.004% S, 0.30W3.0% Ni, 0.20W1.0% Cr, 0.10W 0.80% Mo, 0.005W0.10% V, 0.015W0.080% Sol Al and the balance Fe and has ≥0.50% carbon equiv. Ceq represented by the equation. The high tension steel has strength and toughness which are equal to or higher than those of a conventional ≥80kgf/mm
2 class steel, and it forms a weld bond having such superior performance as ≤0°C vTs and a joint satisfying ≥80kgf/mm
2 tensile strength.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：为了获得可以进行高热输入焊接而不会劣化焊接热影响区的韧性，贱金属的韧性或通过指定以高碳等价物为特征的组成的高可焊性的高强度钢，低碳含量，不含硼。构成：标称的高压钢由> 0.06-0.12％C，<= 0.50％Si，0.50-1.50％Mn，<= 0.010％P，<= 0.004％S，0.30-3.0％Ni，0.20-1.0％ Cr，0.10-0.80％Mo，0.005-0.10％V，0.015-0.080％Sol Al，余量为Fe，具有≥0.50％的碳当量。 Ceq由方程表示。高强度钢具有等于或高于常规> = 80kgf / mm 2级钢的强度和韧性，并且形成具有如下优异性能的焊接接头：<= 0℃vTs和一个满足> = 80kgf / mm的接头<2>拉伸强度。

15. 发明专利

JPS53138916A MANUFACTURE OF WELDED STEEL PIPE WITH EXCELLENT STRESS CORROSION CRACKING RESISTANCE 失效
公开(公告)号：JPS53138916A
公开(公告)日：1978-12-04
申请号：JP5320777
申请日：1977-05-11
申请人： NIPPON KOKAN KK
发明人： MATSUBARA HIROYOSHI , TANIMURA MASAYUKI , TAIRA TADAAKI , SUGA MASATAKA , KOBAYASHI YASUO
IPC分类号： B21C37/08 , C21D1/78 , C21D6/00 , C21D9/08 , C21D9/50 , C22C38/00
摘要： PURPOSE:To improve the stress corrosion cracking resistance of the weld zones of a large-sized welded steel pipe for transportation of sour crude oil and natural gas by quench hardening the weld zones or the whole pipe including the weld zones at a specified temp. followed by tempering.

16. 发明专利

JP2870830B2 失效
公开(公告)号：JP2870830B2
公开(公告)日：1999-03-17
申请号：JP19878789
申请日：1989-07-31
申请人： NIPPON KOKAN KK
发明人： ENDO SHIGERU , NAGAE MORYASU , SUGA MASATAKA
IPC分类号： C21D8/02 , C22C38/00 , C22C38/58

17. 发明专利

JPH07173565A ALUMINUM ALLOY SHEET FOR PRESS FORMING EXCELLENT IN CURABILITY FOR COATING/BAKING 失效
公开(公告)号：JPH07173565A
公开(公告)日：1995-07-11
申请号：JP34272993
申请日：1993-12-16
申请人： NIPPON KOKAN KK
发明人： FUJITA TAKESHI , MITAO SHINJI , HASEGAWA KOHEI , SUGA MASATAKA , SATO KAORU
IPC分类号： C22C21/06
摘要： PURPOSE:To produce an aluminum alloy sheet showing excellent curability at the time of coating and baking and having sufficient elongation and press formability by forming an Al-Cu-Mg based modulated structure having a specified average diameter in an Al alloy having a specified componental compsn. by low temp. short time treatment. CONSTITUTION:The componental compsn. of an aluminum alloy is formed of the one contg., by weight, 1 to 6% Mg, 0.2 to 1.0% Cu, 0.05 to 0.3% Si, 0.03 to 0.25% Fe, 0.005 to 0.15% Ti and 0.0002 to 0.05% B, and the balance Al with inevitable impurities. The sheet of this alloy is subjected to low temp. short time treatment equivalent to coating and baking to form the Al-Cu-Mg based modulated structure having

18. 发明专利

JPH03170641A WELDED STEEL TUBE 失效
公开(公告)号：JPH03170641A
公开(公告)日：1991-07-24
申请号：JP26027189
申请日：1989-10-06
申请人： NIPPON KOKAN KK
发明人： SUGA MASATAKA , FUJITA SAKAE , NAGAE MORIYASU , ENDO SHIGERU , TOMA HIDEO , KUSAKA SHUICHI
IPC分类号： F16L9/02 , C22C38/00 , C22C38/06
摘要： PURPOSE:To manufacture the welded steel tube excellent in strength and toughness as well as excellent in selective corrosion resistance in a sea water environment, at the time of manufacturing a welded steel tube, by retaining specified quantitative relationship between the difference in the content of Ni and Mo included in a base metal steel plate of the steel tube and a weld metal. CONSTITUTION:A low carbon steel plate or a low carbon low alloy steel plate contg., by weight, 0.03 to 0.15% C, 0.05 to 0.50% Si, 0.50 to 2.00% Mn and 0.005 to 0.10% Al or furthermore contg. one or >=2 kinds among 0.05 to 2.0% Cu, 0.05 to 2.0% Ni, 0.05 to 2.0% Cr, 0.05 to 2.0% Mo, 0.005 to 0.20% Nb, 0.005 to 0.20% V, 0.005 to 0.20% Ti, 0.0005 to 0.0020% B and 0.0005 to 0.0050% Ca is welded to manufacture a steel tube. In this case, the quantitative relationship of Ni+7.5X Mo>=0.1 is retained between Ni and Mo, the difference in the content of Ni and Mo included in a weld metal and a steel tube base metal, by which the welded steel tube excellent in selective corrosion resistance as well as excellent in strength and toughness when used in a sea water environment or the like can be manufactured.

19. 发明专利

JPS6410564B2 失效
公开(公告)号：JPS6410564B2
公开(公告)日：1989-02-22
申请号：JP19863284
申请日：1984-09-25
申请人： NIPPON KOKAN KK
发明人： YAMADA MAKOTO , SHIKAUCHI NOBUO , SUGA MASATAKA , UNE MASAO
IPC分类号： C22C38/00 , C21D8/02 , C22C38/14 , C22C38/58

20. 发明专利

JPS63259022A MANUFACTURE OF HIGH-MN NONMAGNETIC STEEL EXCELLENT IN STABILITY OF MAGNETIC PERMEABILITY 失效
公开(公告)号：JPS63259022A
公开(公告)日：1988-10-26
申请号：JP9105287
申请日：1987-04-15
申请人： NIPPON KOKAN KK
发明人： ONO TADASHI , SUGA MASATAKA
IPC分类号： C21D8/00 , C22C38/00 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/18 , C22C38/60
摘要： PURPOSE:To stabilize magnetic permeability after cold working, by specifying the rolling-finishing temp. and reheating water toughening temp. of a steel having a specific composition in which small amounts of Nb and/or V are added so as to obtain fine recrystallized grains. CONSTITUTION:A slab of high-Mn nonmagnetic steel which has a composition consisting of, by weight, 0.20-1.50% C, >=0.80% Si, 11-26% Mn, 0.05-0.15% Nb and/or 0.30-0.50$ V, one kind among =7.5. By this method, the rise of magnetic permeability after cold working can be prevented without causing increase in cost due to the addition of alloying elements.

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