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1. 发明专利

JP2515514B2 失效
公开(公告)号：JP2515514B2
公开(公告)日：1996-07-10
申请号：JP21820886
申请日：1986-09-18
申请人： NIPPON KOKAN KK
发明人： MASUDA SADAKAZU , YOSHINO MASAHIKO , KAMATA SHOSEI , FUJITA FUMIO , ARIIZUMI TAKASHI , YAMADA MAKOTO
IPC分类号： B21B3/00

2. 发明专利

JPH07102328A METHOD FOR COOLING STEEL STRIP IN COOLING ZONE OF CONTINUOUS ANNEALING FURNACE 失效
公开(公告)号：JPH07102328A
公开(公告)日：1995-04-18
申请号：JP24818393
申请日：1993-10-04
申请人： NIPPON KOKAN KK
发明人： YAMADA MAKOTO , HIRAKAWA TOMOYUKI , ISHIKAWA MASARU , ITO TERUO
IPC分类号： C21D9/573
摘要： PURPOSE:To uniformize the cooling speed in the width direction of a steel strip and to prevent the generation of defective shape to the steel strip by cooling the steel strip while partially heating only both edge parts in a cooling zone after annealing, at the time of annealing the cold-rolled steel strip in a continuous annealing furnace. CONSTITUTION:At the time of annealing the cold-rolled steel strip 3 by passing through the continuous annealing furnace composed of a heating zone and soaking zone, the steel strip 3 in the cooling zone is passed through while supporting by rotated pass line rolls 2. In this case, the center part of the pass line roll 2 brought into contact with the steel strip 3, absorbs the heat of the steel strip 3 and the steel strip becomes high temp., but the edge parts thereof brought into no contact with the steel strip 3 does not receive the heat and the temp. thereof is not raised. Therefore, the cooling speed at both edge parts of the steel strip 1 is quicker than the center part in the width direction, and both edge parts are lengthened more than the center part and formed as waving shape in the longitudinal direction and this steel strip becomes defective. In order to prevent this defect, one pair of edge heaters 4 are arranged at both sides of the steel strip 3 and the necessary parts of both edges of the steel strip 3 are partially heated and the development of the defective shape of the waving, etc., is prevented by acting the uniform tension to the whole width direction of the steel strip 3.

3. 发明专利

JPH05237518A 失效
公开(公告)号：JPH05237518A
公开(公告)日：1993-09-17
申请号：JP4356892
申请日：1992-02-28
申请人： NIPPON KOKAN KK
发明人： HAISHI HIROHISA , YAMADA MAKOTO , HIRAKAWA SATOSHI , ISHIKAWA MASARU
IPC分类号： B21B27/00 , B21B27/02 , B24C1/06
摘要： PURPOSE:To inexpensively and efficiently manufacture a rolling roll and to easily avoid contact seizure in an annealing time by making the Rsk of a steel plate which has been rolled by this roll sufficiently large. CONSTITUTION:The graph shows the Rsk of the roll after two times of dull working. The axis of ordinate shows the Rsk after the 2nd shot blast and the axis of abscissa shows the grit number of the 2nd shot blast by the ratio to the 1st one. The 1st shot blast is executed with the grit number of #120 and #240. When the 2nd grit number is between 1/3 and 2/3 of the 1st grit number, the Rsk of the roll is known to be -0.6 to -0.3.

4. 发明专利

JPH05301A SHEET FOR FE-NI SHADOW MASK AND PRODUCTION THEREOF 失效
公开(公告)号：JPH05301A
公开(公告)日：1993-01-08
申请号：JP19510491
申请日：1991-07-10
申请人： NIPPON KOKAN KK
发明人： HAISHI HIROHISA , ISHIKAWA MASARU , KAKUHARI FUMIO , YAMADA MAKOTO
IPC分类号： B21B1/22 , C23F1/00 , H01J9/14 , H01J29/07
摘要： PURPOSE:To prevent the seizure at the time of etching and annealing and to easily obtain the sheet of the shadow mask of the Fe-Ni shadow mask by speci fying the surface roughness of a steel sheet for the shadow mask. CONSTITUTION:The surface roughness of the steel sheet for the Fe-Ni shadow mask is specified to 0.3 to 0.8mum RsK+0.5 to +1.2 to adequately prevent the adhesion and seizure at the time of the etching and annealing. The upper limit of the Ra is specified to 0.8, by which the etching is adequately executed. Further, the upper limit of the RsK is specified to +1.2, by which the generation of the unequal etching is prevented and the easy tendency to generation again of the seizure by the excessive etching is averted.

5. 发明专利

JPS63177905A METHOD FOR COLD ROLLING OF ALPHA+BETA TYPE TITANIUM ALLOY SHEET 失效
公开(公告)号：JPS63177905A
公开(公告)日：1988-07-22
申请号：JP619887
申请日：1987-01-16
申请人： NIPPON KOKAN KK
发明人： MASUDA SADAKAZU , YOSHINO MASAHIKO , KAMATA SHOSEI , FUJITA FUMIO , ARIIZUMI TAKASHI , YAMADA MAKOTO
IPC分类号： B21B3/00
摘要： PURPOSE:To permit cold rolling of an alpha+beta type titanium alloy sheet by subjecting the alpha+beta type titanium alloy to annealing for 30-300min at 600-1,000 deg.C then to cold rolling at =1 passes of the cold rolling and annealing. Cracks are generated if the total draft exceeds 30% and scale is generated when the draft exceeds 100 deg.C. An annealing effect is insufficient at

6. 发明专利

JPS6376706A PRODUCTION OF THIN SHEET MADE OF ALPHA+BETA TYPE ALLOY TITANIUM 失效
公开(公告)号：JPS6376706A
公开(公告)日：1988-04-07
申请号：JP21820886
申请日：1986-09-18
申请人： NIPPON KOKAN KK
发明人： MASUDA SADAKAZU , YOSHINO MASAHIKO , KAMATA SHOSEI , FUJITA FUMIO , ARIIZUMI TAKASHI , YAMADA MAKOTO
IPC分类号： B21B3/00
摘要： PURPOSE:To improve the surface roughness and yield of a product in production of a thin sheet made of alloy Ti by annealing and stripping a pack hot rolled stock, then pickling the stock and subjecting the stock to cold rolling in the range of the draft expressed by the specific equation. CONSTITUTION:The pack hot rolled stock is subjected to annealing, descaling of the surfaces and pickling at the time of producing the broad and thin material of the alloy Ti. Such sheet is cold rolled in the draft gammasigma% range expressed by the equation: RmaxX100/t

7. 发明专利

JPS61166916A MANUFACTURE OF CR-MO STEEL EXCELLING IN TOUGHNESS AND CREEP STRENGTH 失效
公开(公告)号：JPS61166916A
公开(公告)日：1986-07-28
申请号：JP595285
申请日：1985-01-18
申请人： NIPPON KOKAN KK
发明人： TSUYAMA AOSHI , TAGAWA HISATOSHI , SUZUKI HARUO , YAMADA MAKOTO
IPC分类号： C22C38/00 , C21D6/00 , C21D8/02 , C22C38/28 , C22C38/32
摘要： PURPOSE:To improve both toughness and creep strength simultaneously by subjecting the Cr-Mo steel having a specific composition to rolling, normalizing or hardening under specific temp. conditions, and tempering. CONSTITUTION:The steel consisting of, by weight, 0.01-0.60% Si, 0.20-1.20% Mn, 1.80-3.50% Cr, 0.802.00% Mo, 0.005-0.05% SolAl,

8. 发明专利

JPS59170220A Production of un-tempered type low temperature steel plate 失效
标题翻译：生产不锈钢型低温钢板
公开(公告)号：JPS59170220A
公开(公告)日：1984-09-26
申请号：JP4436083
申请日：1983-03-18
申请人： Nippon Kokan Kk
发明人： YAMADA MAKOTO , KOUSAKA YOUJI
IPC分类号： C22C38/00 , C21D8/00
CPC分类号： C21D8/005
摘要： PURPOSE:To produce economically a titled Ni steel having excellent strength, ductility and toughness, and a characteristic for stopping the propagation of a brittle breaking by hot rolling a specifically composed low carbon steel contg. Si, Mn, Ni, S, Al, and N at a high comulative draft, and cooling quickly the steel at around the transformation point then allowing the steel to cool. CONSTITUTION:A steel contg., by weight %, 0.015% =30% in the un-recrystallization region of austenite and is then cooled at a cooling rate of 5-30 deg.C/sec in a range down to 500-650 deg.C and in succession, the steel is allowed to cool. The un-tempered low temp. Ni steel having >=33kg/mm. yield strength and >=45kg/mm. tensile strength is thus produced. A part of said Fe may be replaced with >=1 kind among 0.1- 1.0% Cr, 0.05-0.5% Mo, 0.005-0.1% V, 0.005-0.03% Ti, etc. according to need.
摘要翻译：目的：经济地生产具有优异的强度，延展性和韧性的标称的Ni钢，以及通过特定组成的低碳钢的热轧来阻止脆性断裂的传播的特性。 Si，Mn，Ni，S，Al和N，并在相变点附近快速冷却，然后使钢冷却。构成：钢的重量％，0.015％ = 30％的累积牵伸热轧，然后以冷却速度 5-30℃/秒，范围在500-650℃范围内，并连续地使钢冷却。不温暖的低温 > 33kg / mm 2的屈服强度> 45kg / mm 2的拉伸强度。根据需要，所述Fe的一部分可以在0.1〜1.0％的Cr，0.05〜0.5％的Mo，0.005〜0.1％的V，0.005〜0.03％的Ti等中替换为= 1种。

9. 发明专利

JPS59100214A PRODUCTION OF THICK WALLED HIGH TENSION STEEL 失效
公开(公告)号：JPS59100214A
公开(公告)日：1984-06-09
申请号：JP20762982
申请日：1982-11-29
申请人： NIPPON KOKAN KK
发明人： SUGA MASATAKA , YAMADA MAKOTO , TAKAHASHI KAZUHIDE , IWASAKI NORIHIRO , TAGAWA HISATOSHI , MATSUI KAZUYUKI , IZAWA TOORU , WATANABE ITARU
IPC分类号： B21B3/00 , C21D1/18 , C21D6/00 , C21D8/02 , C22C38/00 , C22C38/44 , C22C38/54
摘要： PURPOSE:To produce high tension steel by incorporating 1 or >=2 kinds among V, Ti, Nb in specific amt. to a blank material for the thick walled high tension steel and heating the same to the temp. at which carbonitride of V, Ti and Nb forms a solid solution thoroughly or above, then rolling the same and cooling the rolled steel at the specified volume of the cooling water used for the unit area of the sum of upper and rear surface of the steel plate per min corresponding to the thickness from a specific temp. CONSTITUTION:A steel material is composed, by weight %, of 0.04-0.16 C, 0.02-0.5 Si, 0.4-1.2 Mn, 0.8-5 Ni, 0.2-1.5 Cr, 0.2-1 Mo, 0.01-0.1 solAl, 0.03- 0.15 total of 1 or >=2 kinds among V, Ti, Nb, =40% cumulative draft in a

10. 发明专利

JPS5980717A MANUFACTURE OF UNNORMALIZED NI STEEL FOR LOW TEMPERATURE USE WITH SUPERIOR TOUGHNESS AT HIGH HEAT INPUT WELDED JOINT 失效
公开(公告)号：JPS5980717A
公开(公告)日：1984-05-10
申请号：JP18909882
申请日：1982-10-29
申请人： NIPPON KOKAN KK
发明人： YAMADA MAKOTO , KOUSAKA YOUJI , SUZUKI MOTOAKI
IPC分类号： C22C38/00 , C21D8/00
摘要： PURPOSE:To manufacture economically the titled Ni steel by heating a low carbon steel billet contg. Si, Mn, Nb and Ni as well as S and N restricted to small amounts to a high temp. and hot rolling the billet under specified conditions. CONSTITUTION:A steel billet consisting of, by weight, 0.005-0.10% C, 0.05-0.9% Si, 0.3-2.0% Mn, =30% total draft in a temp. range below the recrystallization temp. of austenite. The steel billet may further contain >=1 kind among 0.1-1.0% Cr, 0.05-0.50% Mo, 0.1- 1.0% Cu, 0.002-0.030% Ti, 0.005-0.100% V, 0.001-0.010% Ca and 0.001-0.010% La+Ce.

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