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31. 发明公开

EP2140950A1 COLD-FINISHED SEAMLESS STEEL PIPE FOR INTEGRALLY MOLDED DRIVE SHAFT, DRIVE SHAFT USING THE PIPE, AND METHOD FOR MANUFACTURING THE COLD-FINISHED SEAMLESS STEEL PIPE 有权
标题翻译： VERFAHREN ZUR HERSTELLUNG EINES KALTBEARBEITETES NAHTLOSES STAHLROHRFÜRINTEGRAL GEFORMTE ANTRIEBSWELLE
公开(公告)号：EP2140950A1
公开(公告)日：2010-01-06
申请号：EP08739032.4
申请日：2008-03-27
申请人： Sumitomo Metal Industries, Ltd.
发明人： YAMAMOTO, Tadayuki
IPC分类号： B21B23/00 , B21B17/14 , B21C37/15 , C21D9/08 , C22C38/00 , C22C38/32 , C22C38/58
CPC分类号： B21B23/00 , B21B17/04 , B21B17/14 , B21B19/04 , B21B27/024 , C21D8/105 , C21D9/08 , C22C38/04 , C22C38/06 , C22C38/28 , C22C38/32 , F16C3/02
摘要： Provided is a cold-finished seamless steel tube for an integrally-formed type drive shaft that is obtained by cold-drawing a mother tube hot-rolled by the Mannesmann tube-making method, the production of the steel tube involves subjecting steel billets with a specific chemical composition to piercing rolling by the Mannesmann tube-making method, elongation rolling, adjustment of the groove profile in sizing rolling, and subsequently adjustment of its thickness reduction rate in cold drawing in order to secure a maximum depth of inner surface wrinkles of the seamless steel tube being 0.1 mm or less which allows subsequent required processing such that a maximum wrinkle depth of the inner surface is 0.20 mm or less at an inside diameter reduction rate of 30% or more in the diameter reduced portion. As a result, the seamless steel tube can secure torsional fatigue characteristics excellent as an integrally-formed type automotive drive shaft having diameter reduced portions disposed at opposite end portions, and can be used as a hollow member optimal in attaining lightness and quietness. Its use allows automotive drive shafts to be efficiently manufactured.
摘要翻译：本发明提供一种用于整体式驱动轴的冷轧无缝钢管，其通过用Mannesmann制管方法冷轧母系而获得，钢管的制造包括用钢坯通过Mannesmann制造方法进行穿孔轧制的特定化学成分，伸长率轧制，上浆轧制中的槽轮廓的调整，以及随后在冷拉伸中调整其厚度减小率，以确保最大深度的内表面皱纹无缝钢管为0.1mm以下，允许随后进行的所需加工，使得在直径减小部分的内径减少率为30％以上时，内表面的最大褶皱深度为0.20mm以下。结果，无缝钢管可以确保作为设置在相对端部的具有直径减小部分的整体形成型的汽车驱动轴优异的扭转疲劳特性，并且可以用作在获得亮度和安静性方面最佳的中空构件。其使用可以有效地制造汽车传动轴。

32. 发明公开

EP2135696A1 METHOD OF PROCESSING END OF ELONGATED TUBE MATERIAL 有权
标题翻译： VERFAHREN ZUR BEARBEITUNG VONLÄNGLICHEMROHRMATERIAL
公开(公告)号：EP2135696A1
公开(公告)日：2009-12-23
申请号：EP08739192.6
申请日：2008-03-28
申请人： Sumitomo Metal Industries, Ltd.
发明人： ISHII, Kazuhiro
IPC分类号： B23B1/00 , B23B5/00 , B23B5/16 , B23B31/02
CPC分类号： B23G1/22 , B23B31/16 , B23B2231/22 , B23B2270/12 , B23G1/52 , B23Q3/183
摘要： Thread cutting of the end portion of a long tubular member (1) held by a chuck system (3) is carried out with high accuracy without leaving mill scale on the complete thread portion of the resulting threads. The protruding length L of the long tubular member from the chuck system (3) to the end face of the tubular member is controlled so that the ratio L/D of the protruding length L to the outer diameter D of the long tubular member (1) is in a range predetermined depending on the outer diameter D and the ratio t/D of the wall thickness t to the outer diameter D of the tubular member (1). When the chuck system is a floating chuck system having a floating chuck and a positioning chuck, the protruding length L of the tubular member from the floating chuck and the protruding length L'thereof from the positioning chuck are controlled.
摘要翻译：通过卡盘系统（3）保持的长管状构件（1）的端部的螺纹切割以高精度进行，而不会在所得螺纹的整个螺纹部分上留下磨痕。长管状部件从卡盘系统（3）到管状部件的端面的突出长度L被控制为使得长管状部件（1）的突出长度L与外径D的比L / D ）处于根据外径D和管状构件（1）的壁厚t与外径D的比率t / D预定的范围内。当卡盘系统是具有浮动卡盘和定位卡盘的浮动卡盘系统时，来自浮动卡盘的管状构件的突出长度L和来自定位卡盘的突出长度L L被控制。

33. 发明公开

EP2133443A1 LOW ALLOY STEEL FOR THE PIPE FOR OIL WELL USE AND SEAMLESS STEEL PIPE 审中-公开
标题翻译：结构钢低合金份额管油井及无缝化钢管
公开(公告)号：EP2133443A1
公开(公告)日：2009-12-16
申请号：EP08739237.9
申请日：2008-03-28
申请人： Sumitomo Metal Industries, Ltd.
发明人： OMURA, Tomohiko , ARAI, Yuji , TOMOMATSU, Kuniaki , ABE, Toshiharu
IPC分类号： C22C38/00 , C22C38/22
CPC分类号： C22C38/22 , C21D8/12 , C21D9/08 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , Y10T428/12292
摘要： A low alloy steel is provided for oil country tubular goods with a yield strength between 654 MPa and 757 MPa, and possessing excellent resistance to HIC and SSC in high-pressure hydrogen sulfides environment, and comprising, by mass %: 0.10 to 0.60% C; 0.05 to 0.5% Si; 0.05 to 3.0% Mn; 0.025% or less P; 0.010% or less S; 0.005 to 0.10% Al; 0.01% or less O (oxygen); 3.0% or less Cr; and 3.0% or less Mo, wherein the amount of Cr and Mo content is 1.2% or more, with the balance being Fe and impurities, and the number of nonmetallic inclusions whose major axis is 10 µm or more is 10 per square millimeter in the inspected cross section. The present invention provides a low alloy steel for oil country tubular goods possessing excellent resistance to sulfide stress cracking, and a seamless steel pipe.
摘要翻译：低合金钢被提供用于油井管具有654兆帕和757兆帕之间的屈服强度和波塞唱优良的耐HIC和SSC在高压氢硫化物环境中，并且包括以质量％计：0.10〜0.60％C ; 0:05〜0.5％的Si; 12:05〜3.0％的Mn; 0.025％或更少的P; 0.010％以下S; 0.005〜0.10％的Al; 0：01％以下O（氧）; 3.0％或更少的Cr; 和3.0％或更少的Mo，worin Cr和Mo的含量的量为1.2％以上，余量为Fe和杂质，并且在其主轴为10个微米或更多的是10每平方毫米的非金属夹杂物的数目检查的横截面。本发明提供了一种油井管波塞的低合金钢唱优良的耐硫化物应力开裂，和无缝钢管。

34. 发明公开

EP2131190A1 EDDY CURRENT EXAMINATION METHOD, AND EDDY CURRENT EXAMINATION APPARATUS 有权
标题翻译： WORBELSTROMUNTERSUCHUNGSVERFAHREN UND VORRICHTUNGSVERWENDUNG
公开(公告)号：EP2131190A1
公开(公告)日：2009-12-09
申请号：EP08722250.1
申请日：2008-03-17
申请人： Sumitomo Metal Industries, Ltd.
发明人： HYODO, Shigetoshi , NAKAO, Yoshiyuki
IPC分类号： G01N27/90
CPC分类号： G01N27/9013
摘要： It is an object of the present invention to provide an eddy current testing apparatus capable of accurately detecting any flaws occurring in a columnar or cylindrical subject to be tested regardless of their extending directions, with the use of the same probe coil.
The eddy current testing apparatus 100 according to the present invention comprises a spinning plate 1 and a probe coil 2 disposed on the spinning plate 1. The probe coil is a probe coil capable of obtaining a differential output about a scanning direction of a detection signal which corresponds to a detected eddy current induced in the subject to be tested. The spinning plate is disposed in such a position that a spinning center RC of the spinning plate faces with an axial center PC of the subject to be tested. A distance R between the spinning center of the spinning plate and a center of the probe coil is set so that a difference between a maximum amplitude of a differential output at an axially extending artificial flaw provided in the subject to be tested and a maximum amplitude of a differential output at a circumferentially extending artificial flaw provided in the subject to be tested falls within a predetermined range.
摘要翻译：本发明的目的是提供一种涡流测试装置，其能够使用相同的探针线圈来精确地检测在被测试的柱状或圆柱形物体中发生的任何缺陷，而不管其延伸方向如何。根据本发明的涡流测试装置100包括设置在纺丝板1上的纺丝板1和探针线圈2.探针线圈是能够获得关于检测信号的扫描方向的差分输出的探针线圈，对应于在待测试对象中感测的检测到的涡流。纺丝板设置在纺纱板的纺纱中心RC与待测试对象的轴心中心PC相对的位置。将纺丝板的纺丝中心与探针线圈的中心之间的距离R设定为使被测定对象物内的轴向延伸的人造缺陷的差动输出的最大振幅与最大振幅在待测试对象中设置的沿周向延伸的人造缺陷的差分输出落在预定范围内。

36. 发明授权

EP1679136B1 METHOD OF MANUFACTURING SEAMLESS TUBE BY THREE-ROLL MANDREL MILL 有权
标题翻译：用于生产的无缝管通过与三个辊一轧管机
公开(公告)号：EP1679136B1
公开(公告)日：2009-08-12
申请号：EP04792128.3
申请日：2004-10-07
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： INAGE, Takamitsu, c/o Sumitomo Metal Ind., Ltd. , KIDANI, Shigeru, c/o Sumitomo Metal Ind., Ltd. , NAKAIKE, Hirotsugu, c/o Sumitomo Metal Ind., Ltd.
IPC分类号： B21B17/02 , B21B27/02 , B21B17/04
CPC分类号： B21B17/04 , B21B25/00 , B21B27/024
摘要： A method of manufacturing a seamless tube, wherein the ratio of the inner peripheral length of a tube material to the outer peripheral length of a mandrel bar is set within the range of 1.07 to 1.17 in the final two stands of stands forming a mandrel mill where wall-thickness increasing processing is applied to the tube material. Thus, the occurrence of the defective extraction of the mandrel bar after rolling and the occurrence of scratches on the inner surface of the tube material by the mandrel bar can be effectively suppressed without excessively increasing a wall thickness difference (nonuniform wall thickness) in the circumferential direction of the tube material after rolling, and an operation by the three-roll mandrel mill can be actually performed. As a result, the method can be widely used as a method for manufacturing the seamless tube by a Mannesmann mandrel mill system.

37. 发明公开

EP2085157A1 Method and apparatus for adjusting rolling positions of rolling rolls constituting three-roll mandrel mill 有权
标题翻译：用于调节轧辊的位置对三辊芯棒式无缝管轧机的制备方法和装置
公开(公告)号：EP2085157A1
公开(公告)日：2009-08-05
申请号：EP09006388.4
申请日：2004-10-06
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： Yamane, Akihito
IPC分类号： B21B17/02 , B21B37/78
CPC分类号： B21B17/02 , B21B17/04 , B21B37/78 , B21B38/04
摘要： According to a method and an apparatus of the present invention for adjusting the rolling positions of the rolling rolls constituting a three-roll mandrel mill, a wall thickness of a rolled material is measured at a position corresponding to a groove bottom portion of each rolling roll, a deviation between each measured wall thickness and a target wall thickness determined by a rolling schedule is computed, and the rolling position of each rolling roll is adjusted based on each computed deviation. Therefore, the rolling position can properly be adjusted. The wall thickness of the rolled material is also measured at both positions corresponding to portions extended toward both flange portion sides from the groove bottom portions of the rolling rolls, and the rolling position of each rolling roll is adjusted based on the deviation between both measured values. Therefore, even if the rolling position of each rolling roll is considered to be apparently proper, actually the rolling position can be properly adjusted. Accordingly, the method and the apparatus of the present invention are widely adopted as means for adjusting the rolling positions of the rolling rolls constituting the three-roll mandrel mill.
摘要翻译：。根据用于调整构成三辊芯棒式无缝管轧机的轧制辊的压下位置的方法和辊到本发明的装置中，轧制材料的壁厚在对应于每个滚动的槽底部的位置处测得的，每个测量的壁厚和通过的轧制制度开采的目标壁厚确定性之间的偏差被计算，并且各轧辊的轧制位置基于每个计算的偏差进行调整。因此，滚动位置可适当调整。因此，轧制材料的壁厚是在这两个位置对应于部分测量朝向这两个凸缘部侧延伸从槽轧辊的底部部分，并且各轧辊的轧制位置是基于这两个测量值之间的偏差来调整，因此，即使每个轧辊的轧制位置被认为是明显正确的，实际上滚动位置可适当调整。因此，该方法和本发明的装置的广泛采用作为用于调整构成三辊芯棒式无缝管轧机轧制辊的压下位置。

38. 发明公开

EP2080569A1 DEVICE AND METHOD FOR MONITORING MANUFACTURING STATUS OF SEAMLESS PIPE AND SEAMLESS PIPE MANUFACTURING FACILITY 有权
标题翻译：装置及监测方法制造无缝管及设备的状态，制造无缝PIPES
公开(公告)号：EP2080569A1
公开(公告)日：2009-07-22
申请号：EP07792023.9
申请日：2007-08-06
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： IWAMOTO, Hiroyuki
IPC分类号： B21B19/04 , B21B23/00 , B21C51/00
CPC分类号： B21C51/00 , B21B19/04 , B21B37/78 , B21B38/006 , B21B38/04 , B21B2261/04 , B21B2261/10 , B21B2261/20 , B21B2261/21 , B21J5/10 , G01B17/02 , G01B21/085
摘要： It is an object of the present invention to provide a monitoring apparatus and the like of seamless pipe or tube production conditions which enable to quickly correct production conditions during operating the manufacturing facilities of a seamless pipe or tube.
The monitoring apparatus 20 of production conditions according to the present invention comprises an ultrasonic thickness meter 4 which is installed on the exit side of a piercing-rolling mill 10 piercing and rolling a billet B to produce a pipe S and measures a thickness of the pipe S produced by the piercing-rolling mill 10, a thermometer 5 which is installed on the exit side of the piercing-rolling mill 10 and measures a surface temperature of the pipe S produced by the piercing-rolling mill 10, and a computing and displaying device 6 which displays a thickness distribution in a circumferential direction of the pipe S and a surface temperature distribution in a circumferential direction of the pipe S based on the thickness of the pipe S measured by the ultrasonic thickness meter 4 and the surface temperature of the pipe S measured by the thermometer 5.
摘要翻译：本发明提供一种监视装置的对象等的无缝管的制造条件其使得能够快速地操作无缝管制造设备过程中正确的生产条件。其被安装在出口侧的制造状况监控装置20雅丁到超声波测厚计4的本发明包括所有的一穿轧机10穿孔轧制钢坯乙以产生管S和测量的厚度的管的由穿轧机10，其被安装在穿轧机10的出口侧，用于测量由穿轧机10制造的管S的表面温度的温度计5的所有，以及计算和显示产生的小号装置6显示在管S的周向和基于由超声波测厚计4测得的管S的厚度和管子的表面温度在管S的周向的表面温度分布的厚度分布 S按温度计测定。5

39. 发明授权

EP1611969B1 METHOD AND APPARATUS FOR PRODUCING PIPE, WALL THICKNESS VARIATION-OBTAINING DEVICE, AND COMPUTER PROGRAM 有权
标题翻译：方法和设备管生产设备，用于改变壁厚和计算机程序
公开(公告)号：EP1611969B1
公开(公告)日：2009-07-01
申请号：EP04719652.2
申请日：2004-03-11
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： YAMANE, Akihito, SUMITOMO METAL INDUSTRIES, LTD.
IPC分类号： B21B37/78 , B21B17/02
CPC分类号： G01B15/02 , B21B17/04 , B21B17/14 , B21B37/78 , B21B38/04
摘要： In a method of producing a pipe, the producing condition of the pipe is regulated as follows: complex Fourier transform is performed on measured values of thickness at different portions in an axial cross section of a pipe, kinds of wall thickness variations are classified, amounts of the variations are calculated from absolute values of complex Fourier components, positions of thick wall portions or thin wall portions are calculated from phases of the complex Fourier components, and the producing condition of the pipe is regulated based on the kinds of wall thickness variations, the amounts of the variations, and the positions of thick wall portions or thin wall portions. Relationship between an amount (r) of wall thickness variation of a primary wall thickness variation obtained for the axial cross section and a phase (theta), which is represented by r.exp (jtheta), is subjected to complex Fourier transform as a function in the length direction of the pipe. Wall thickness variations are further classified by frequency of torsion of the variations, and appropriate processing is performed in accordance with the classified variations so as to prevent the variations.

40. 发明公开

EP2060644A1 MARTENSITIC STAINLESS STEEL 审中-公开
标题翻译：马氏体不锈钢
公开(公告)号：EP2060644A1
公开(公告)日：2009-05-20
申请号：EP07792794.5
申请日：2007-08-21
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： TAKABE, Hideki , MORI, Tomoki , UEDA, Masakatsu
IPC分类号： C22C38/00 , C22C38/50
CPC分类号： C22C38/44 , C21D1/25 , C21D6/004 , C21D9/14 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/42 , C22C38/46 , C22C38/50
摘要： The martensitic stainless steel according to the invention includes, in percent by mass, 0.010% to 0.030% C, 0.30% to 0.60% Mn, at most 0.040% P, at most 0.0100% S, 10.00% to 15.00% Cr, 2.50% to 8.00% Ni, 1.00% to 5.00% Mo, 0.050% to 0.250% Ti, at most 0.25% V, at most 0.07% N, and at least one of at most 0.50% Si and at most 0.10% Al, the balance consists of Fe and impurities, and the martensitic stainless steel satisfies Expression (1) and has a yield stress in the range from 758 MPa to 862 MPa. In this way, the martensitic stainless steel has a yield stress of 110 ksi grade (a yield stress in the range from 758 MPa to 862 MPa) and the value produced by subtracting the yield stress from the tensile stress is not less than 20.7 MPa. 6.0 ≤ Ti / C ≤ 10.1
摘要翻译：根据本发明的马氏体不锈钢以质量百分比计包含0.010％至0.030％的C，0.30％至0.60％的Mn，至多0.040％的P，至多0.0100％的S，10.00％至15.00％的Cr，2.50％至8.00％Ni，1.00％至5.00％Mo，0.050％至0.250％Ti，至多0.25％V，至多0.07％N和至多0.50％Si和至多0.10％Al中的至少一种，余量由Fe和杂质构成，马氏体系不锈钢满足式（1），屈服应力为758MPa以上且862MPa以下。这样，马氏体系不锈钢的屈服应力为110ksi级（屈服应力为758MPa〜862MPa），从拉伸应力减去屈服应力而得到的值为20.7MPa以上。 6.0≤Ti/C≤10.1

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