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21. 发明专利

JPH07284881A CONTINUOUS CASTING MOLD FOR CASTING MOLTEN STEEL CONTAINING ZINC AS IMPURITY 失效
公开(公告)号：JPH07284881A
公开(公告)日：1995-10-31
申请号：JP7515794
申请日：1994-04-13
申请人： NIPPON STEEL CORP
发明人： KUROKI MASATSUGU , SHIMA TETSUO , HAMAYA HIDEKI , ICHIYAMA YASUTOMO
IPC分类号： B22D11/04 , B22D11/059 , C25D5/12 , C25D5/14 , C25D7/00
摘要： PURPOSE:To restrain the developing of corrosion and crack caused by diffusion of zinc by applying Ni-plating film on a copper or copper alloy-made base plate and arranging two layers of Cr plating films on an upper layer of the Ni plating film as a protecting film. CONSTITUTION:In a mold for producing molten steel containing Zn as impurity, the electrolytic Ni plating 8 having >=0.1mm thickness is applied to the molten steel side of the copper or copper alloymade mold base plate 9 and further, on this film, the electrolytic Cr plating films 7 having =99% Cr are arranged at two or more layers. For example, in the case of arranging two layers of Cr plating film 7 having 15mum thickness on the Ni plating film applied on the copper alloy base plate, the infiltration of the zinc into the Ni film is restrained to about 1/2 in comparison with the arrangement of single layer of the Cr plating film 7 having 30mum thickness on the Ni plating film. By this method, the diffusion of the zinc into the Ni film 7 is restrained and the occurrence of the crack is delayed and the service life till grinding and replating, and the service life till disposing, are extended.

22. 发明专利

JPH073427A FLAME SPRAING METHOD FOR PARTIAL REINFORCING 失效
公开(公告)号：JPH073427A
公开(公告)日：1995-01-06
申请号：JP17366093
申请日：1993-06-22
申请人： NIPPON STEEL CORP
发明人： HAMAYA HIDEKI , ICHIYAMA YASUTOMO , INMAKI YOSHIHIRO , SAITO TORU , MIYAZAKI YASUNOBU , OBARA MASAHIRO
IPC分类号： C23C4/08 , C23C4/12
摘要： PURPOSE:To perform partial reinforcing with a flame spray coating in order to compensate the reduction in sheet thickness due to the weight reduction of a press-formed part made of steel sheet, such as automobile. CONSTITUTION:Flame spraying is partially applied to a press-formed part made of steel sheet by a high frequency plasma flame spraying method or a hybrid plasma flame spraying method, by which a flame sprayed coating is formed and the sheet thickness of this part is increased. Further, this coating is composed of one or >=2 kinds among iron, carbon steel, iron-base alloy, Ni-base alloy, Co-base alloy, Al, and Al alloy.

23. 发明专利

JP2012061481A Plasma welding method of aluminum alloy plate 有权
标题翻译：铝合金板的等离子体焊接方法
公开(公告)号：JP2012061481A
公开(公告)日：2012-03-29
申请号：JP2010205902
申请日：2010-09-14
申请人： Furukawa-Sky Aluminum Corp , Nippon Steel Corp , 古河スカイ株式会社 , 新日本製鐵株式会社
发明人： SAKIYAMA TATSUYA , ICHIYAMA YASUTOMO , OKADA TOSHIYA
IPC分类号： B23K10/02 , B23K103/10
摘要： PROBLEM TO BE SOLVED: To provide a plasma welding method of an aluminum alloy plate, capable of suppressing welding defects such as blow holes in welding parts, thereby obtaining an excellent welding joint without defects, even in the case of direct-current-plasma-welding the aluminum alloy plate.SOLUTION: In the method in which a plurality of aluminum alloy plates 1 with thickness of 0.5 to 3 mm as the materials to be welded are used and abutting end parts 1a, 1a themselves are welded by the direct current plasma positive polar plasma welding method for generating a plasma arc between the tungsten electrode 11 and the aluminum alloy plates 1, helium/argon mixed gas in which helium concentration is 75 vol.% or higher is used as a plasma gas PG is used, the distance between the tungsten electrode 11 and the aluminum alloy plates 1 being the materials to be welded is 2 mm or less, the coming-in heat quantity Qhi per unit plate thickness during the direct current positive polar plasma welding, represented by the following equation {60×(EI/Vt)}, is 2,500 (J/cm) or higher and lower than 10,000 (J/cm).
摘要翻译：要解决的问题：为了提供能够抑制焊接部件中的焊接缺陷如焊接孔的铝合金板的等离子体焊接方法，从而获得无缺陷的优良焊接接头，即使在直流电的情况下 - 焊接铝合金板。解决方案：在使用厚度为0.5至3mm的多个铝合金板1作为待焊接材料的方法中，并且通过直流等离子体正极性等离子体焊接邻接端部1a，1a本身使用在钨电极11和铝合金板1之间产生等离子弧的焊接方法，使用氦浓度为75体积％以上的氦/氩混合气体作为等离子体气体PG，钨之间的距离电极11和作为待焊接材料的铝合金板1为2mm以下，直流正极性等离子体焊接时的单位板厚的入热量Qhi由下式表示：ä60×（EI / Vt）}为2,500（J / cm 2 ）或更高且低于10,000（J / cm 2 ）。版权所有（C）2012，JPO＆INPIT

24. 发明专利

JP2003320455A Method for automatically controlling welding in initial layer penetration welding of multilayer fill arc welding 审中-公开
标题翻译：多层薄膜焊接初始层压焊接自动控制焊接方法
公开(公告)号：JP2003320455A
公开(公告)日：2003-11-11
申请号：JP2002130891
申请日：2002-05-02
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： MAEDA TAKESHI , ICHIYAMA YASUTOMO , FURUKAWA YUICHI , IKUNO YASUYUKI
IPC分类号： B23K9/095 , B23K9/127
摘要： PROBLEM TO BE SOLVED: To provide a method for automatically controlling welding in all attitude in an initial layer penetration welding of a multilayer fill arc welding which can suppress a change in a gap between a groove width and a backing metal in all attitude, further lack of fusion, in sufficient penetration and the like of a welding bead caused by a change or the like of an oscillation width, a welding quantity, etc.
SOLUTION: The method for automatically controlling welding in the initial layer penetration welding of the multilayer fill arc welding comprises the steps of: image processing the groove width direction of the molten pool image imaged from obliquely forward with respect to a welding advancing direction as an X-axis coordinate axis and the welding advancing direction as a Y-axis coordinate axis; deciding whether the molten pool front edge shape is an arch-state or an oblique shape according to the relation between the Y-axis coordinate value of left side lowermost end point and right side lowermost end point of the molten pool image measured by the image processing and the Y-axis coordinate value of the lower end point on the centerline of the pond image, increasing the welding speed of the welding torch in response to the decision, and controlling any of decreasing the oscillation width or reducing the welding speed.
COPYRIGHT: (C)2004,JPO
摘要翻译：解决的问题：提供一种能够在多层填充电弧焊接的初始层穿透焊接中自动控制焊接的方法，该多层填充电弧焊接可以抑制槽宽度和背衬金属之间的间隙在所有姿态中的变化，由于振荡宽度，焊接量等的变化等引起的焊缝的充分穿透等，进一步缺乏熔合。解决方案：用于自动控制初始层渗透中的焊接的方法多层填充电弧焊接的焊接步骤包括：将作为X轴坐标轴的焊接前进方向的倾斜向前成像的熔池图像的槽宽方向图像处理为Y轴，轴坐标轴; 根据通过图像处理测量的熔池图像的左侧最下端点的Y轴坐标值和右侧最下端点之间的关系来确定熔池前边缘形状是拱形状还是倾斜形状和池塘图像中心线下端点的Y轴坐标值，响应决定提高焊炬的焊接速度，控制振荡宽度减小或降低焊接速度。版权所有（C）2004，JPO

25. 发明专利

JP2003305580A Laser beam welding device 有权
标题翻译：激光束焊接设备
公开(公告)号：JP2003305580A
公开(公告)日：2003-10-28
申请号：JP2002111731
申请日：2002-04-15
申请人： Honda Motor Co Ltd , Nippon Steel Corp , Nippon Steel Weld Prod & Eng Co Ltd , 新日本製鐵株式会社 , 日鐵溶接工業株式会社 , 本田技研工業株式会社
发明人： SONODA HIROFUMI , OKUYAMA KENJI , IFUKURO JUNICHI , YAHABA TAKANORI , TAKIGAWA MASATO , ICHIYAMA YASUTOMO , UKIANA TOSHIYASU
IPC分类号： B23K26/00 , B23K26/02 , B23K26/04 , B23K26/06 , B23K26/10 , B23K26/20 , B23K26/24
CPC分类号： B23K26/037 , B23K26/244
摘要： PROBLEM TO BE SOLVED: To execute stable edge joint welding with high reliability by a laser beam. SOLUTION: The laser beam welding device is provided with a laser irradiation head 9 to be pointed to an overlapped joint position on the end face of the edge of an overlapped base material 21, a first set of rollers 12 copying one plane of the base material and a second set of the rollers 18 copying the other plane opposing to the one plane, a first member 11 connected to a head 9 and supporting the rollers 12 rotatably and a second member 17 connected to the head 9 and supporting the rollers 18 rotatably, and a pressurizing means 16 driving at least one of the first member 11 and the second member 17 in a direction to shorten a gap between the rollers 12, 18 and the base material 21 so as to pressurize the base material 21 by clamping the base material 21 by the rollers 12, 18. Moreover, the device is provided with copying means 1-9, 11, and 12 to constantly maintain a distance of a laser emitting nozzle of the head 9 to the upper end face of the base material 21. The first set of the rollers 12 is the copying roller having an upper flange. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：通过激光束实现高可靠性的稳定的边缘接头焊接。
解决方案：激光束焊接装置设置有激光照射头9，以指向重叠基材21的边缘的端面上的重叠接合位置，第一组辊12复制一个平面所述基材和第二组辊18复制与所述一个平面相对的另一个平面，连接到头部9并且可旋转地支撑辊12的第一构件11和连接到头部9并支撑辊的第二构件17 18是可旋转的，以及加压装置16，其沿着缩短辊12,18和基材21之间的间隙的方向驱动第一构件11和第二构件17中的至少一个，以通过夹紧来对基材21加压基体材料21由辊子12,18组成。此外，该装置设置有复印装置1-9,11和12，以将头部9的激光发射喷嘴的距离恒定地保持到基座的上端面材料21.第一套辊12是具有上凸缘的复印辊。版权所有（C）2004，JPO

26. 发明专利

JP2003200282A METHOD AND EQUIPMENT OF TWIN SPOT PULSE LASER WELDING 审中-公开
公开(公告)号：JP2003200282A
公开(公告)日：2003-07-15
申请号：JP2001397948
申请日：2001-12-27
申请人： HONDA MOTOR CO LTD , NIPPON STEEL CORP , NIPPON STEEL WELDING PROD ENG
发明人： SONODA HIROFUMI , OKUYAMA KENJI , IFUKURO JUNICHI , YAHABA TAKANORI , TAKIGAWA MASATO , ICHIYAMA YASUTOMO , UKIANA TOSHIYASU
IPC分类号： B23K26/00 , B23K26/067 , B23K26/21 , B23K26/24 , B23K26/26
摘要： PROBLEM TO BE SOLVED: To perform a defectless butt welding with a laser beam without requiring an accuracy in a butted gap and, giving a broad width of joined faces and a broad width of penetration for a lapped welding and a fillet welding and to obtain a high joint strength for any cases. SOLUTION: Twin spot pulse laser welding equipment is provided with a YAG laser oscillator 6, current control means 4 and 12 which control a lamp current, lamp current instruction means 10 and 11 which give a lamp current base value Wb, a peak value Wp and a pulsation period 1/T to the current control means, and a twin spot pulse laser head 14 which converges a laser beam outputted from the YAG laser oscillator onto two focal points 20R and 20L which are distributed with a small distance in x-direction. The YAG laser beam outputted from the YAG laser oscillator is guided to a laser head 14 via an optical cable 9. COPYRIGHT: (C)2003,JPO

27. 发明专利

JP2003094180A TREATMENT METHOD FOR PILE HEAD OF STEEL PIPE PILE 审中-公开
公开(公告)号：JP2003094180A
公开(公告)日：2003-04-02
申请号：JP2001286195
申请日：2001-09-20
申请人： NIPPON STEEL CORP , OKABE CO LTD
发明人： KODAMA SHINJI , ICHIYAMA YASUTOMO , TACHIKAWA HIROSHI , ERA YOSHIYUKI , OGAKI MASAYUKI , ENDO TOSHIMASA
IPC分类号： E02D5/34 , B23K25/00 , E02D27/12
摘要： PROBLEM TO BE SOLVED: To ensure the welding quality and to improve the efficiency of welding work in a treatment method for a pile head for welding a reinforcing bar on the head of a steel pipe pile. SOLUTION: In the treatment method for the pile head of the steel pipe pile, a reinforcing bar 1 having a specified shape is preferably made to abut in the vertical direction of the outer periphery of the head of the steel pipe pile. In a state that a copper, steel or ceramic strap (preferably a heat resisting material) 5 is installed so as to surround the reinforcing bar preferably in a range of a specified conditional equation, electroslag welding is conducted from the lower end part of the reinforcing bar toward the upward.

28. 发明专利

JP2003094170A MANUFACTURING METHOD OF TAILORED BLANK MATERIAL 审中-公开
公开(公告)号：JP2003094170A
公开(公告)日：2003-04-02
申请号：JP2001288117
申请日：2001-09-21
申请人： NIPPON STEEL CORP
发明人： ICHIYAMA YASUTOMO , KODAMA SHINJI , HAJI JUNJI , KAWAI KENJI
IPC分类号： B23K10/02 , B21D22/02
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of a tailored blank material in which high speed welding of steel plates with different thickness is conducted by using a plasma arc welding method. SOLUTION: The method to manufacture the tailored blank material by the plasma arc welding of the steel plates with different thickness is characterized in that the thicker side of the plate is welded by the plasma arc welding by using a steel material containing 0.1% C or more and/or 0.8% Si or more at a welding speed of 0.8 m/min or more.

29. 发明专利

JPH09295187A WIRE FOR GAS SHIELDED METAL ARC WELDING FOR LINE PIPE 失效
公开(公告)号：JPH09295187A
公开(公告)日：1997-11-18
申请号：JP13255896
申请日：1996-05-01
申请人： NIPPON STEEL CORP
发明人： KIMOTO ISAMU , HIRANO AKIRA , CHIBA TOSHIHIKO , ICHIYAMA YASUTOMO , KODAMA SHINJI
IPC分类号： B23K35/30 , B23K9/00 , B23K101/10 , C22C38/00 , C22C38/50 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a wire for gas shielded metal arc welding which is excellent in the selective corrosion resistance of a circumferential weld metal part of a line pipe to transport petroleum, natural gas, etc., is excellent in the cracking resistance and the welding workability, and capable of obtaining the weld metal excellent in the strength and the low temperature toughness. SOLUTION: The wire has a composition consisting of 0.02-0.20% C, 0.20-1.50% Si, 0.50-2.0% Mn, 0.0030-0.050% O, 0.10-2.00% Cr, and 0.10-5.50% Ni to the total weight of the wire, and contains one or two or more kinds of 0.005-0.20% Al, 0.005-0.20% Ti, and 0.005-0.20 % Zr.

30. 发明专利

JPH08281381A MOLD FOR HORIZONTAL CONTINUOUS CASTING 失效
公开(公告)号：JPH08281381A
公开(公告)日：1996-10-29
申请号：JP8159695
申请日：1995-04-06
申请人： NIPPON STEEL CORP
发明人： TANNO HITOSHI , ICHIYAMA YASUTOMO , OGAWA TAKESHI , KAWAI HIROYUKI , ASO TOSHIRO
IPC分类号： B22D11/04 , B22D11/059
摘要： PURPOSE: To prevent hoot tear and clod shut crack at the defects of a steel by forming a specific metal-base thermal-sprayed film from the starting pt. of solidified shell developed on an inner surface at the end part of a copper alloy-made cylindrical mold contacting with molten steel approaching to a brake ring to the other end side of the mold. CONSTITUTION: The copper alloy-made cylindrical mold 7 forms the metal-base thermal-sprayed film 9 of 0.1-10.0mm thickness excellent in heat shock resistance, zinc resistance and wear resistance on the inner surface at the end part of the brake ring side. This metal-base film 9 is formed so as to satisfy the relationship I to the position from the starting position fo solidified shell developed on the inner surface at the end part of the mold 7 to the other end side of the mold 7. Wherein, (d) is the film thickness at 0.1-10.0mm, K is thermal conductivity (kcal/m.hr. deg.C) and L is the film length (mm) from the starting pt. of solidification. Further, as the metal-base thermal sprayed film 9, Co-base alloy, etc., is suitable and inn order to secure the sticking force of the copper alloy forming the mold with these alloy, it is effective to interpose an Ni-plating film.

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