专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明申请

WO03002771A8 LOW CARBON STEEL SHEET, LOW CARBON STEEL CAST PIECE AND METHOD FOR PRODUCTION THEREOF 审中-公开
标题翻译：低碳钢板，低碳钢铸件及其生产方法
公开(公告)号：WO03002771A8
公开(公告)日：2003-11-13
申请号：PCT/JP0206598
申请日：2002-06-28
申请人： NIPPON STEEL CORP , SASAI KATSUHIRO , OHASHI WATARU , MATSUMIYA TOORU , KIMURA YOSHIAKI , NAKASHIMA JUNJI
发明人： SASAI KATSUHIRO , OHASHI WATARU , MATSUMIYA TOORU , KIMURA YOSHIAKI , NAKASHIMA JUNJI
IPC分类号： C21C7/00 , C21C7/06 , C21C7/068
CPC分类号： C21C7/06 , C21C7/0006 , C21C7/068
摘要： A method for casting a molten steel which comprises decarbonizing a raw molten steel to a carbon content of 0.01 mass % or less, subjecting the resultant molten steel to a pre-deoxidation treatment by the addition of Al, to thereby prepare a molten steel having a dissolved oxygen content of 0.01 to 0.04 mass %, and then adding Ti and at least one of La and Ce; and a low carbon steel sheet and a low carbon steel cast piece produced from a molten steel produced by the method. In the steel sheet and cast piece, inclusions are prevented from coagulating and are dispersed in the form of fine particles, which results in preventing the occurrence of flaws on the surface thereof.
摘要翻译：一种用于铸造钢水的方法，其包括使原始钢水脱碳至0.01质量％以下的碳含量，通过添加Al对所得钢水进行预脱氧处理，由此制备具有溶解氧含量为0.01〜0.04质量％，然后添加Ti和La和Ce中的至少一种; 以及由该方法制造的钢水制成的低碳钢板和低碳钢铸件。在钢板和铸件中，防止了夹杂物的凝结，并以微粒的形式分散，从而防止其表面发生瑕疵。

22. 发明申请

WO0228558A3 SHEET WIDTH CONTROL METHOD IN HOT ROLLING 审中-公开
标题翻译：薄板宽度控制方法
公开(公告)号：WO0228558A3
公开(公告)日：2002-07-18
申请号：PCT/JP0108766
申请日：2001-10-04
申请人： NIPPON STEEL CORP , HIGO TSUYOSHI , ISHII ATSUSHI , YAMADA KENJI , OGAWA SHIGERU , KISHI KAZUHIKO , TAKAMACHI YASUYUKI
发明人： HIGO TSUYOSHI , ISHII ATSUSHI , YAMADA KENJI , OGAWA SHIGERU , KISHI KAZUHIKO , TAKAMACHI YASUYUKI
IPC分类号： B21B1/26 , B21B37/22
CPC分类号： B21B37/22 , B21B1/26
摘要： This invention provides a sheet width control method, in hot rolling, that calculates a sheet width (8) distribution of a rolling material (1) in a longitudinal direction and its temperature (9) on the entry side of a vertical rolling mill set as the object for controlling the sheet width, further calculates a distribution of sheet width change amounts of the rolling material along the longitudinal direction occurring on the downstream side to the vertical rolling mill (3) along a rolling direction, and calculates and controls roll gap of the vertical rolling mill in the longitudinal direction of the rolling mill on the basis of a sheet width distribution of the rolling material determined from the distribution of the sum of the calculated sheet width change amounts along the longitudinal direction and on the basis of a final target sheet width.
摘要翻译：本发明提供一种热轧时的板宽度控制方法，其计算轧制材料（1）的长度方向的板宽（8）分布及其在垂直轧机组入口侧的温度（9）为用于控制纸张宽度的目的还进一步计算轧制材料沿轧制方向沿垂直轧机（3）沿下游侧的纵向方向的轧制材料的宽度变化量的分布，并且计算和控制轧制间隙根据轧制材料的纸张宽度分布，根据计算的纸张宽度变化量的总和沿着纵向方向的分布和基于最终目标的分布确定的轧制机纵向轧制机纸张宽度。

23. 发明申请

WO0212742A3 HYDROSTATIC GAS BEARING 审中-公开
标题翻译：静压气体轴承
公开(公告)号：WO0212742A3
公开(公告)日：2002-04-18
申请号：PCT/JP0106536
申请日：2001-07-30
申请人： NIPPON STEEL CORP , NIPPON KOGAKU KK , MUKAI TOSHIO , TANAKA KEIICHI
发明人： MUKAI TOSHIO , TANAKA KEIICHI
IPC分类号： F16C29/02 , F16C32/06
CPC分类号： F16C29/025 , F16C32/0614
摘要： The present invention has its object to provide a hydrostatic gas bearing excellent in a vibration-damping characteristic. The hydrostatic gas bearing is provided with a gas ejecting equipments composed of a cylindrical fine hole having a diameter of not less than 0.04 mm and not more than 0.4 mm, wherein a helium gas is ejected through the cylindrical fine hole. The cylindrical hole has a diameter D and a length L, and in the case where a relationship of D /L is not more than 2 x 10 mm is established, the hydrostatic gas bearing excellent in the vibration-damping characteristic is specifically realized.
摘要翻译：本发明的目的是提供一种阻尼特性优异的静压气体轴承。静压气体轴承设置有由直径不小于0.04mm且不大于0.4mm的圆柱形细孔组成的气体喷射设备，其中氦气通过圆柱形细孔喷射。圆柱形孔的直径D和长度L成立，在D 4 / L的关系不大于2×10 -4 mm 3的情况下，具有优异的静压气体轴承具体实现了减震特性。

24. 发明申请

WO1981001812A1 METHOD OF BUILD UP WELDING OF MEMBER HAVING CYLINDRICAL SURFACE AND APPARATUS FOR EXECUTING THE SAME 审中-公开
标题翻译：具有圆柱形表面的构件的焊接方法和用于执行其的装置的方法
公开(公告)号：WO1981001812A1
公开(公告)日：1981-07-09
申请号：PCT/JP1981000001
申请日：1981-01-05
申请人： NIPPON STEEL CORP
发明人： NIPPON STEEL CORP , ASAI Y , TOKUMITSU N , HORI M
IPC分类号： B23K25/00
CPC分类号： B23K25/005
摘要： An electro slag welding process for a cylindrical member such as an iron roll for a steel mill. The purposes of this invention are to solve the problems of (1) what type of electrode should be used to supply the large current to the slag, and (2) how to prevent the tendency of the depth of penetration of the weld into the base metal to increase excessively due to an increased melting of the base metal resulting from increasing the build-up depth, and thus to increase the welding heat supplied, and to decrease the rising speed of the melt (i.e. the welding speed). In this process a plurality of large consumable bar electrodes (12) supply polyphase AC current to the slag; and the base metal (10) and pad (16) are rotated while continuously adding molten metal (13) to the surface of the slag bath (14). This may be utilized for producing and repairing a cylindrical composite member.
摘要翻译：一种用于钢厂的诸如铁辊的圆柱形构件的电渣焊接方法。本发明的目的是解决（1）应该使用什么类型的电极来向炉渣供应大电流的问题，和（2）如何防止焊接深度穿入基底的趋势金属由于增加堆积深度导致的贱金属熔化增加而过度增加，从而增加供应的焊接热量，并降低熔体的上升速度（即焊接速度）。在该过程中，多个大的可消耗条电极（12）向炉渣供应多相交流电流; 并且在将熔融金属（13）连续地添加到炉渣槽（14）的表面的同时旋转贱金属（10）和衬垫（16）。这可以用于生产和修理圆柱形复合构件。

25. 发明申请

WO1981001157A1 METHOD OF IMPARTING RUST RESISTANCE TO STEEL MATERIALS 审中-公开
标题翻译：对钢材的耐腐蚀性的方法
公开(公告)号：WO1981001157A1
公开(公告)日：1981-04-30
申请号：PCT/JP1980000254
申请日：1980-10-22
申请人： NIPPON STEEL CORP , OTSUKA CHEM CO LTD , OTSUKA S , TANIKAWA K , INUBUSHI A , OBI T , MANABE I , MAEDA C
发明人： NIPPON STEEL CORP , OTSUKA CHEM CO LTD
IPC分类号： C23F11/14
CPC分类号： C23F11/10
摘要： Hot-rolled, acid-washed steel plates, cold-rolled steel plates, cast iron, etc. are treated with an aqueous solution or emulsion having a pH of 7 to 10 and containing mainly a 1-hydroxybenzotriazole compound represented by the following general formula: (FORMULA) (wherein X and Y each represents a hydrogen atom, a hydroxy group, an alkyl group, a carboxyl group, a nitro group or a sulfo group) and further containing one, two or more of aliphatic dicarboxylic acids to impart rust resistance to the steel plates.

26. 发明申请

WO2008117765A1 ABNORMALITY DIAGNOSTIC METHOD AND DEVICE OF EXTREMELY LOW SPEED ROTARY MACHINE 审中-公开
标题翻译：异常低速旋转机异常诊断方法及装置
公开(公告)号：WO2008117765A1
公开(公告)日：2008-10-02
申请号：PCT/JP2008055351
申请日：2008-03-17
申请人： NIPPON STEEL CORP , MURAYAMA TSUNEMI
发明人： MURAYAMA TSUNEMI
IPC分类号： G01M13/04 , G01H17/00
CPC分类号： G01M13/04 , F16C19/527 , G01H1/003 , G01M13/045
摘要： Inexpensive method and device for diagnosing abnormality of an extremely low speed rotary bearing of 10 rpm or less with high precision using an acoustic signal. An acoustic signal generated from the rolling bearing of an extremely low speed rotary machine of 10 rpm or less is detected using a detection end having a sound collection function of 10 kHz or less, spectral distribution is determined by frequency analysis, the spectral average value or effective value of a frequency analysis waveform obtained by processing the spectral distribution at a frequency not lower than the natural frequency of the bearing is compared with a reference value, and a judgment is made that the bearing is abnormal if the spectral average value or effective value exceeds the reference value.
摘要翻译：用于使用声信号以高精度诊断10rpm以下的极低转速旋转轴承的异常的廉价方法和装置。使用10kHz以下的声音收集功能的检测端检测从10rpm以下的极低速旋转机的滚动轴承产生的声音信号，频谱分布由频率分析，频谱平均值或将以不低于轴承的固有频率的频率进行频谱分布而获得的频率分析波形的有效值与参考值进行比较，并且如果频谱平均值或有效值，则判断为轴承异常超过参考值。

27. 发明申请

WO2005061749A3 STEEL PLATES FOR ULTRA-HIGH-STRENGTH LINEPIPES AND ULTRA-HIGH-STRENGTH LINEPIPES HAVING EXCELLENT LOW-TEMPERATURE TOUGHNESS AND MANUFACTURING METHODS THEREOF 审中-公开
标题翻译：用于超高强度钢板的钢板和具有优异的低温韧性的超高强度钢板及其制造方法
公开(公告)号：WO2005061749A3
公开(公告)日：2006-08-10
申请号：PCT/JP2004019468
申请日：2004-12-17
申请人： NIPPON STEEL CORP , EXXONMOBIL UPSTREAM RES CO , ASAHI HITOSHI , HARA TAKUYA
发明人： ASAHI HITOSHI , HARA TAKUYA
IPC分类号： C22C38/04 , C22C38/00 , C22C38/08 , C22C38/12
CPC分类号： C22C38/12 , C22C38/002 , C22C38/04 , C22C38/08
摘要： Ultra-high-strength linepipes having excellent low-temperature toughness manufactured by welding together the edges of steel plates comprising C of 0.03 to 0.07 mass%, Si of not more than 0.6 mass%, Mn of 1.5 to 2.5 mass%, P of not more than 0.015 mass%, S of not more than 0.003 mass%, Ni of 0.1 to 1.5 mass%, Mo of 0.15 to 0.60 mass%, Nb of 0.01 to 0.10 mass%, Ti of 0.005 to 0.030 mass%, Al of not more than 0.06 mass%, one or more of required amounts of B, N, V, Cu, Cr, Ca, REM (rare-earth metals) and Mg, with the remainder consisting of iron and unavoidable impurities and having a (Hv-ave)/(Hv-M) ratio between 0.8 and 0.9 at 2.5 = P = 4.0, wherein Hv-ave is the average Vickers hardness in the direction of the thickness of the base metal and Hv-M is the martensite hardness depending on C-content (Hv-M = 270 + 1300C) and a tensile strength TS-C between 900 MPa and 1100 MPa; P = 2.7C + 0.4Si + Mn + 0.8Cr + 0.45(Ni + Cu) + (1 + ß)Mo - 1 + ß(ß = 1 when B = 3 ppm and ß = 0 when B
摘要翻译：通过将包含0.03〜0.07质量％的C，不大于0.6质量％的Si，1.5〜2.5质量％的Mn，1.5〜2.5质量％的Mn，不为P的钢板的边缘焊接在一起，制造出优异的低温韧性的超高强度线管大于0.015质量％，S：0.003质量％以下，Ni：0.1〜1.5质量％，Mo：0.15〜0.60质量％，Nb：0.01〜0.10质量％，Ti：0.005〜0.030质量％大于0.06质量％，所需量的B，N，V，Cu，Cr，Ca，REM（稀土金属）和Mg中的一种或多种，其余由铁和不可避免的杂质组成，并具有（Hv- ave）/（Hv-M）的比例在2.5 = P = 4.0时，其中Hv-ave是贱金属厚度方向上的维氏硬度平均值，Hv-M是取决于C的马氏体硬度（Hv-M = 270±1300℃），拉伸强度TS-C在900MPa〜1100MPa之间; P = 2.7C + 0.4Si + Mn + 0.8Cr + 0.45（Ni + Cu）+（1 +ß）Mo-1 +ß（B = 3ppm时ß= 1，B <3ppm时ß= 0）。

28. 发明申请

WO03002771B1 LOW CARBON STEEL SHEET, LOW CARBON STEEL CAST PIECE AND METHOD FOR PRODUCTION THEREOF 审中-公开
标题翻译：低碳钢板，低碳钢铸件及其生产方法
公开(公告)号：WO03002771B1
公开(公告)日：2003-03-06
申请号：PCT/JP0206598
申请日：2002-06-28
申请人： NIPPON STEEL CORP , SASAI KATSUHIRO , OHASHI WATARU , MATSUMIYA TOORU , KIMURA YOSHIAKI , NAKASHIMA JUNJI
发明人： SASAI KATSUHIRO , OHASHI WATARU , MATSUMIYA TOORU , KIMURA YOSHIAKI , NAKASHIMA JUNJI
IPC分类号： C21C7/00 , C21C7/06 , C21C7/068
CPC分类号： C21C7/06 , C21C7/0006 , C21C7/068
摘要： A method for casting a molten steel which comprises decarbonizing a raw molten steel to a carbon content of 0.01 mass % or less, subjecting the resultant molten steel to a pre-deoxidation treatment by the addition of Al, to thereby prepare a molten steel having a dissolved oxygen content of 0.01 to 0.04 mass %, and then adding Ti and at least one of La and Ce and a low carbon steel sheet and a low carbon steel cast piece produced from a molten steel produced by the method. In the steel sheet and cast piece, inclusions are prevented from coagulating and are dispersed in the form of fine particles, which results in preventing the occurrence of flaws on the surface thereof.
摘要翻译：一种用于铸造钢水的方法，其包括使原始钢水脱碳至0.01质量％以下的碳含量，通过添加Al对所得钢水进行预脱氧处理，由此制备具有溶解氧含量为0.01〜0.04质量％，然后添加Ti和由该方法制造的钢水制成的La和Ce中的至少一种以及低碳钢板和低碳钢铸件。在钢板和铸件中，防止了夹杂物的凝结，并以微粒的形式分散，从而防止其表面发生瑕疵。

29. 发明申请

WO0220874A2 HEXAVALENT CHROMIUM-FREE SURFACE-TREATING AGENT FOR SN- OR AL-BASED COATED STEEL SHEET, AND SURFACE TREATED STEEL SHEET 审中-公开
标题翻译：用于基于SN或AL的涂层钢板和表面处理钢板的无铬无铬表面处理剂
公开(公告)号：WO0220874A2
公开(公告)日：2002-03-14
申请号：PCT/JP0107748
申请日：2001-09-06
申请人： NIPPON STEEL CORP , NIHON PARKERIZING , IZAKI TERUAKI , FUDA MASAHIRO , NAKAMURA MITSURU , KAWAKAMI KATSUYUKI , MIZUNO KENSUKE
发明人： IZAKI TERUAKI , FUDA MASAHIRO , NAKAMURA MITSURU , KAWAKAMI KATSUYUKI , MIZUNO KENSUKE
IPC分类号： C23C22/56 , C09D5/08 , C09D191/06 , C09D191/08 , C23C2/08 , C23C2/12 , C23C2/26 , C23C22/58 , C23C22/74 , C23C28/00 , C23C22/00 , C09K5/08 , C23F11/00
CPC分类号： C23C22/74 , C09D5/084 , C09D191/06 , C09D191/08 , C23C28/00 , C23C28/021 , C23C28/023 , C23C2222/10 , Y10T428/31714
摘要： A hexavalent chromium-free surface treating agent for Sn- or Al-based coated steel sheet, comprising a trivalent chromium compound (A), a water-dispersible silica (B), a lubricity imparting component (C) made of one or more waxes of polyolefin wax, fluorine-containing wax and paraffin wax, and water, a mass ratio on the solid content basis of the water-dispersible silica (B) to the lubricity imparting component (C), (B)/(C), being within a range from 5/95 to 95/5.
摘要翻译：含有三价铬化合物（A），水分散性二氧化硅（B），由一种或多种蜡制成的润滑赋予成分（C）的Sn-或Al系涂层钢板的六价铬无铬表面处理剂聚烯烃蜡，含氟蜡和石蜡以及水，水分散性二氧化硅（B）与赋予润滑性成分（C），（B）/（C）的固体成分的质量比，为在5/95至95/5的范围内。

30. 发明申请

WO0008221A9 ROLLED STEEL PRODUCT EXCELLENT IN WEATHERABILITY AND FATIGUE RESISTING CHARACTERISTIC AND METHOD OF PRODUCTION THEREOF 审中-公开
标题翻译：轧制钢产品具有良好的耐候性和耐疲劳特性及其生产方法
公开(公告)号：WO0008221A9
公开(公告)日：2000-05-25
申请号：PCT/JP9904239
申请日：1999-08-05
申请人： NIPPON STEEL CORP , YAMAMOTO KOUICHI , SATOH HIRONORI
发明人： YAMAMOTO KOUICHI , SATOH HIRONORI
IPC分类号： C22C38/00 , C22C38/42 , C22C38/44 , C21D8/00 , C22C38/16 , C22C38/58
CPC分类号： C22C38/42 , C22C38/001 , C22C38/44
摘要： A simple method of producing at a low cost a rolled steel product which is used for a steel structure member such as a bridge and a steel tower to be installed on a seashore where there is a possibility of a corroded steel product and a fatigued joint due to scattered sea salt particles and in an area where snow melting salt is used, which is excellent in weatherability and fatigue resisting characteristic, which is a building construction steel product containing 0.02 to 0.20 wt.% of C and trace amounts of Ni, Cu and Mo as added essential elements, and which has a Ni/Cu concentration ratio of not less than 0.8, not larger than 2 mu m of inner oxidation layer in the steel product surface and concentrated layers of Ni, Cu and Mo not smaller than 2 mu m deep on the inner oxidation layer.
摘要翻译：一种简单的方法，以低成本生产用于诸如桥梁和钢铁塔等钢结构构件的轧制钢制品，以安装在可能存在腐蚀钢制品和疲劳接头的海岸上作为含有C：0.02〜0.20重量％，微量的Ni，Cu和Cu的建筑用钢材，具有耐候性和耐疲劳特性优异的海盐分散体和使用融雪盐的部位 Mo作为添加必需元素，并且其具有不小于0.8的Ni / Cu浓度比，不大于2μm的钢制品表面中的内部氧化层以及不小于2μm的Ni，Cu和Mo的浓缩层深入内部氧化层。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式