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1. 发明专利

JP2000129474A METHOD FOR BUFFERING HYDROGEN ABSORBING EMBRITTLEMENT OF TITANIUM CLAD STEEL 失效
公开(公告)号：JP2000129474A
公开(公告)日：2000-05-09
申请号：JP30185198
申请日：1998-10-23
申请人： NIPPON KOKAN KK , NIPPON BOSHOKU KOGYO KK
发明人： SHIMIZU YOSHIAKI , FUJITA SAKAE , TANAKA YASUSHI , TAKANO TOSHIO , KARASAWA TAKESHI , KONO KENJI , HANAYAMA KAN
IPC分类号： E02B17/00 , B23K9/00 , C23F13/00 , E02D31/06
摘要： PROBLEM TO BE SOLVED: To suppress the excessive convertion of the electric potential of titanium clad steel into the baser one, to buffer the hydrogen absorbing embrittlement therein and to maintain its durability by providing titanium clad steel joined to a steel structure in which the submerged part is subjected to electric corrosion prevention with a metallic material having a natural electric potential baser than that of the steel and joining it with the steel. SOLUTION: The submerged part 2 in seawater of the steel pipe pile 1 of a landing bridge 7 is, e.g. fitted with a voltaic anode 3, which is subjected to electric corrosion prevention. Moreover, titanium clad steel 5 having high corrosion resistance is coiled directly below a droplet zone and a tide zone 4 severe in corrosive environments in the steel pipe pile 1, and its corrosion resistance is moreover increased. In this steel structure, from the tide seawater face of the titanium clad steel 5 to below about 1 m, a metallic material 8 with a planar, helical or netty shape or the like of copper, a copper alloy, stainless steel, cupro, a nickel base alloy or the like having a natural electric potential baser than that of the steel is coiled, and, moreover, this metallic material 8 is welded and joined to the steel pipe pile 1. In this way, protective current is flowed on the metallic material, and it is made hard to flow on the titanium clad steel to prevent hydrogen absorption.

2. 发明公开

EP0198084A4 PROCESS FOR PRODUCING THIN MAGNETIC STEEL PLATE HAVING HIGH PERMEABILITY. 失效
标题翻译：法生产薄的电磁钢板高渗。
公开(公告)号：EP0198084A4
公开(公告)日：1989-01-19
申请号：EP85904865
申请日：1985-09-26
申请人： NIPPON KOKAN KK
发明人： NAKAOKA KAZUHIDE , TAKADA YOSHIKAZU , TANAKA YASUSHI
IPC分类号： C21D8/12 , C23C10/08 , H01F1/147 , H01F1/16
CPC分类号： H01F1/14783 , C21D8/1255 , C23C10/08 , H01F1/14775

3. 发明公开

EP1134297A4 STEEL SHEET FOR HEAT SHRINK BAND AND METHOD FOR PRODUCING THE SAME 审中-公开
标题翻译： VERFAHREN ZU DESSEN HERSTELLUNG的STAHLBLECHFÜRWÄRMESCHRUMPFFÄHIGES
公开(公告)号：EP1134297A4
公开(公告)日：2006-05-24
申请号：EP00949970
申请日：2000-08-03
申请人： NIPPON KOKAN KK , SONY CORP
发明人： HIRATANI TATSUHIKO , MATSUOKA HIDEKI , TANAKA YASUSHI , SUGIHARA REIKO , SATO CHOHACHI , KATO HIROAKI , OKADA MASAMICHI
IPC分类号： C23C14/40 , C21D8/02 , C21D8/12 , C21D9/46 , C22C38/00 , C22C38/04 , C22C38/12 , C22C38/14 , H01F1/16 , H01J29/87 , H01J37/32 , H01J37/34 , H01J29/07
CPC分类号： C21D8/1233 , C21D8/0236 , C21D8/1272 , C21D9/46 , C22C38/004 , C22C38/04 , H01F1/16 , H01J29/87 , H01J2229/87
摘要： A steel sheet for a heat shrink band having a non-hysterisis magnetic permeability in a magnetic field of 0.35 Oe of 15000 or more and a yield stress of 24 kgf/mm or greater. The steel sheet for a heat shrink band can be produced by a method comprising a step of subjecting a steel containing C in an amount of 0.01 to 0.15 wt % to a hot or cold rolling, a step of annealing the rolled product at 650 to 900 DEG C, and subjecting the annealed product to temper rolling at a draft of 1.5 % or less. The steel sheet for a heat shrink band can be used for producing a cathode-ray tube which is almost free from the occurrence of color slippage and does not suffer the deformation of its panel face.
摘要翻译：本发明的热收缩带用钢板在0.35Oe时的磁滞磁导率为15000以上，屈服应力为24kgf / mm 2以上。钢板可以通过以下方法制造：包括以下步骤：热轧和/或冷轧含有0.01至0.15重量％C的钢; 在650〜900℃的温度下对轧制钢板进行退火; 以1.5％以下的压下率对退火后的钢板进行回火处理。由钢板制成的CRT导致极少的颜色偏差，并且实际上没有面板表面的变形。

4. 发明专利

CA1314461C METHOD OF PRODUCING GRAIN ORIENTED SILICON IRON PLATE OF LOW IRON LOSS 未知
公开(公告)号：CA1314461C
公开(公告)日：1993-03-16
申请号：CA579755
申请日：1988-10-11
申请人： NIPPON KOKAN KK
发明人： TAKADA YOSHIKAZU , INAGAKI JUNICHI , TANAKA YASUSHI , ABE MASAHIRO
IPC分类号： C21D8/12
摘要： With respect to a grain oriented silicon iron plate containing Si of more than 1.0 wt% to less than 4.0 wt% and having a (110) aggregate structure, by passing through the steps of removing oxidized films from the surface thereof, heating to temperatures of 1000 to 1250.degree.C, siliconizing by contacting to an atmospheric gas bearing SiC14 of 5 to 40 vol%, subjecting to diffusion uniformalization annealing in a protecting atmospheric gas at temperatures of 1000 to 1400.degree.C and coating, after cooling, an isolation film thereon, the invention produces such a grain oriented silicon iron plate containing the Si content of 4.0 to 7.0 wt%.

5. 发明专利

DE3585686D1 未知
公开(公告)号：DE3585686D1
公开(公告)日：1992-04-23
申请号：DE3585686
申请日：1985-09-26
申请人： NIPPON KOKAN KK
发明人： NAKAOKA KAZUHIDE , TAKADA YOSHIKAZU , TANAKA YASUSHI
IPC分类号： C21D8/12 , C23C10/08 , H01F1/147 , H01F1/16
摘要： PCT No. PCT/JP85/00535 Sec. 371 Date Mar. 3, 1986 Sec. 102(e) Date Mar. 3, 1986 PCT Filed Sep. 26, 1985 PCT Pub. No. WO86/02105 PCT Pub. Date Apr. 10, 1986.An ordinarily made thin steel sheet is placed in an atmosphere bearing SiCl4, and subjecting to Si penetrating treatment at temperatures between 1100 DEG C. and 1200 DEG C. for a determined period of time. A heating rate is used which is more than 50 DEG C./sec at the temperatures of more than 1000 DEG C. in the SiCl4 atmosphere. Thereby, it is possible to manufacture thin steel sheet of high magnetic permeability without internal defects.

6. 发明专利

DE69214554D1 未知
公开(公告)号：DE69214554D1
公开(公告)日：1996-11-21
申请号：DE69214554
申请日：1992-07-29
申请人： NIPPON KOKAN KK
发明人： ARAI KENICHI , ISHIYAMA KAZUSHI , TANAKA YASUSHI , HIURA AKIRA , NAMIKAWA MISAO
IPC分类号： C21D1/76 , C21D8/12 , C22C38/02
摘要： The present invention provides a method of manufacturing a silicon steel sheet having grains precisely arranged in the Goss orientation, comprising the steps of preparing a steel material containing 0.01wt% or less of C, 2.5 to 7.0wt% of Si, 0.01wt% or less of S, 0.01wt% or less of A l , 0.01wt% or less of N, subjecting the steel material to hot rolling maintained 1000 DEG C or higher such that the temperature of the rolled material at an end of the hot rolling step falls within the range of 700 to 950 DEG C, subjecting the steel material to a primary cold rolling process at a rolling reduction of 30 to 85%, annealing the steel material at a temperature of 600 to 900 DEG C, subjecting the steel material to a secondary cold rolling process at a rolling reduction of 40 to 80%, annealing the steel material again at a temperature of 600 to 900 DEG C, subjecting the steel material to a tertiary cold rolling process at a rolling reduction of 50 to 75%, and annealing the steel material in a reducing atmosphere, or in a non-oxidizing atmosphere having an oxygen partial pressure of 0.5Pa or less, or in a vacuum having an oxygen partial pressure of 0.5Pa or less, at a temperature in the range of 1000 to 1300 DEG C.

7. 发明专利

CA2232129C NON-ORIENTED ELECTROMAGNETIC STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME 未知
公开(公告)号：CA2232129C
公开(公告)日：2004-05-11
申请号：CA2232129
申请日：1998-03-16
申请人： NIPPON KOKAN KK
发明人： YAMADA KATSUMI , TAKAHASHI NORITAKA , IIZUKA SHUNJI , TANAKA YASUSHI , YAMAGAMI NOBUO , MATSUOKA HIDEKI , ODA YOSHIHIKO , CHINO ATSUSHI , HIURA AKIRA
IPC分类号： C21D8/12 , C22C38/60
摘要： A non-oriented electromagnetic steel sheet contains 0.005 wt.% or less C, 0.2 wt.% or less P, 0.005 wt.% or less N, 4.5 wt.% or less Si, 0.05 to 1.5 wt.% Mn, 1.5 wt.% or less Al and 0 . 001 wt.% or less S, at least one element selected from the group of 0.001 to 0.05 wt.% Sb, 0.002 to 0.1 wt.% Sn, 0.0005 to 0.01 wt.% Se and 0.0005 to 0.01 wt. % Te; and the balance being Fe and inevitable impurities. The non-oriented electromagnetic steel sheet is produced by the steps of: hot-rolling a slab to form a hot-rolled steel sheet, cold-rolling the hot-rolled steel sheet to form a cold-rolled steel sheet; and finish annealing the cold-rolled steel sheet.

8. 发明专利

DE69605522T2 未知
公开(公告)号：DE69605522T2
公开(公告)日：2000-05-18
申请号：DE69605522
申请日：1996-09-30
申请人： NIPPON KOKAN KK
发明人： FUJITA KOICHIRO , TANAKA YASUSHI , NINOMIYA HIRONORI , HIRATANI TATSUHIKO , KASAI SHOJI
IPC分类号： C23C10/08 , C21D8/12 , C22C38/00 , C22C38/02 , C22C38/06 , C23C10/06 , C23C10/60 , H01F1/147
摘要： A silicon steel sheet contains 0.01 wt.% or less C, 4 to 10 wt.% Si, 0.5 wt.% or less Mn, 0.01 wt.% or less P, 0.01 wt.% or less S, 0.2 wt.% or less sol. Al, 0.01 wt.% or less N, 0.02 wt.% or less O and the balance being Fe. The silicon steel sheet has grain boundaries and carbides which are precipitated on the grain boundaries. The carbides have an area of 20% or less to an area of the grain boundaries. The steel sheet is cooled at a cooling speed of 5 DEG C/sec. or more in a temperature range of from 300 to 700 DEG C.

9. 发明专利

CA1323291C METHOD FOR PRODUCING HIGH SILICON STEEL STRIP IN A CONTINUOUSLY TREATING LINE 未知
公开(公告)号：CA1323291C
公开(公告)日：1993-10-19
申请号：CA579756
申请日：1988-10-11
申请人： NIPPON KOKAN KK
发明人： ABE MASAHIRO , OKADA KAZUHISA , FUKUDA SHUZO , TANAKA YASUSHI , YAMATO MASAYUKI , TAKADA YOSHIKAZU
IPC分类号： C21D8/12 , C23C10/08 , C23C16/24 , C23C16/54 , C23C16/56 , H01F1/147
摘要： The present invention relates to a method for producing high silicon steel strip in a continuously treating line through a chemical vapor deposition, wherein the steel strip is treated continuously with siliconization at temperatures between 1023 and 1200.degree.C by chemical vapor deposition in a non-oxidizing gas atmosphere containing SiCl4 between 5 and 35% in molar fraction, and subsequently performed with a diffusion treatment in a non-oxidizing gas atmosphere not containing SiCl4 for diffusing Si uniformly within the steel strip, and coiled after cooling. If a steel strip coated with an insulating film is required, the insulating film can be applied after the diffusion treatment - cooling, and coiled after a baking treatment.

10. 发明专利

DE69605522D1 未知
公开(公告)号：DE69605522D1
公开(公告)日：2000-01-13
申请号：DE69605522
申请日：1996-09-30
申请人： NIPPON KOKAN KK
发明人： FUJITA KOICHIRO , TANAKA YASUSHI , NINOMIYA HIRONORI , HIRATANI TATSUHIKO , KASAI SHOJI
IPC分类号： C23C10/08 , C21D8/12 , C22C38/00 , C22C38/02 , C22C38/06 , C23C10/06 , C23C10/60 , H01F1/147
摘要： A silicon steel sheet contains 0.01 wt.% or less C, 4 to 10 wt.% Si, 0.5 wt.% or less Mn, 0.01 wt.% or less P, 0.01 wt.% or less S, 0.2 wt.% or less sol. Al, 0.01 wt.% or less N, 0.02 wt.% or less O and the balance being Fe. The silicon steel sheet has grain boundaries and carbides which are precipitated on the grain boundaries. The carbides have an area of 20% or less to an area of the grain boundaries. The steel sheet is cooled at a cooling speed of 5 DEG C/sec. or more in a temperature range of from 300 to 700 DEG C.

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