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1. 发明公开

EP2676746A4 METHOD FOR STRAIGHTENING 有权转让
标题翻译： BEGRADIGUNGSVERFAHREN
公开(公告)号：EP2676746A4
公开(公告)日：2016-09-07
申请号：EP12747318
申请日：2012-02-10
申请人： NIPPON STEEL & SUMITOMO METAL CORP
发明人： UCHIDA KAZUHIRO , KAWAKAMI TADASHI
IPC分类号： B21D3/02
CPC分类号： B21B23/00 , B21D3/04
摘要： There is provided a method for straightening a steel product, comprising using hard alloy straightening rolls each made of a tungsten carbide-cobalt (WC-Co) based sintered material (hard metal), wherein the hardness of each roll is HRA85 to 87. According to this straightening method, when bends of steel product are straightened, roll wear is suppressed, defective roll mark(s) caused by the roll wear is prevented from being formed on the surface of the product being straightened, and time for changeover and/or setup of rolls is shortened to enhance the operation rate of the straightening machine, whereby the efficiency of a finishing process and, in turn, the productivity can be improved. Therefore, this method is especially effective in the case where a product to be straightened is a high-strength product such as a steel pipe for a motor vehicle air bag.

2. 发明公开

EP2587206A4 HEAT TRANSFER TUBE FOR STEAM GENERATOR AND METHOD FOR PRODUCING SAME 有权转让
标题翻译：传热管用于生产蒸汽发生器和方法
公开(公告)号：EP2587206A4
公开(公告)日：2014-10-08
申请号：EP11800358
申请日：2011-06-07
申请人： NIPPON STEEL & SUMITOMO METAL CORP
发明人： TOYODA MASATOSHI , KURODA KOUICHI
IPC分类号： F28F1/00 , B21C3/10 , B21C9/00 , B21D3/02 , C22C19/05 , C22C38/00 , C22C38/58 , C22F1/00 , C22F1/10 , F28F1/40 , F28F21/08
CPC分类号： F22B37/12 , B21C9/00 , B21C19/00 , B21D3/02 , B21D3/04 , B21D22/201 , B21D51/24 , C21D6/004 , C22C19/05 , C22C38/40 , C22F1/10 , F28D2021/0064 , F28F1/40
摘要： In a heat transfer tube for a steam generator, a surface roughness of an inner surface of the tube is measured along a longitudinal direction and an amount of dimensional variation in a length of 50 mm taken from a measured roughness chart is 4 µm or less and an amount of bend crookedness in a portion of a length of 1000 mm from a tube end is 1 mm or less. Hence, when the tube is produced, an inspection of the tube by an eddy current flaw detection can be conducted at a high S/N ratio and hence an inspection efficiency can be improved, and when the tube is assembled into a heat exchanger, the assembling operation can be easily performed. It is preferable that the heat transfer tube for a steam generator according to the present invention is produced by the steps of cold drawing by use of a high-pressure lubricating oil of 40 MPa or more in pressure; solid solution heat treatment; and straightening by a roll straightening machine. Further, it is preferable that the roll straightening machine is a roll straightening machine using at least five pairs of concave globoidal drum type straightening rolls, each pair of rolls being arranged opposite to each other in a vertical direction and in a crossing manner where directions of rotating shafts cross each other.

3. 发明授权

EP1870174B1 AUTOMATIC CONTROL METHOD OF ROLL TYPE PIPE CORRECTION MACHINE 有权
标题翻译：自动控制方法滚子纠偏机管道
公开(公告)号：EP1870174B1
公开(公告)日：2014-09-17
申请号：EP06730626.6
申请日：2006-03-30
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： KISHI, Masatomo c/o SUMITOMO METAL INDUSTRIES, LTD
IPC分类号： B21D3/02 , B21D3/14 , B21D3/04
CPC分类号： B21D3/04

4. 发明公开

EP2587206A1 HEAT TRANSFER TUBE FOR STEAM GENERATOR AND METHOD FOR PRODUCING SAME 有权转让
标题翻译： WÄRMEÜBERTRAGUNGSROHRFÜRDAMPFERZEUGER
公开(公告)号：EP2587206A1
公开(公告)日：2013-05-01
申请号：EP11800358.1
申请日：2011-06-07
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： TOYODA, Masatoshi , KURODA, Kouichi
IPC分类号： F28F1/00 , B21C3/10 , B21C9/00 , B21D3/02 , C22C19/05 , C22C38/00 , C22C38/58 , C22F1/10 , F28F1/40 , F28F21/08 , C22F1/00
CPC分类号： F22B37/12 , B21C9/00 , B21C19/00 , B21D3/02 , B21D3/04 , B21D22/201 , B21D51/24 , C21D6/004 , C22C19/05 , C22C38/40 , C22F1/10 , F28D2021/0064 , F28F1/40
摘要： In a heat transfer tube for a steam generator, a surface roughness of an inner surface of the tube is measured along a longitudinal direction and an amount of dimensional variation in a length of 50 mm taken from a measured roughness chart is 4 µm or less and an amount of bend crookedness in a portion of a length of 1000 mm from a tube end is 1 mm or less. Hence, when the tube is produced, an inspection of the tube by an eddy current flaw detection can be conducted at a high S/N ratio and hence an inspection efficiency can be improved, and when the tube is assembled into a heat exchanger, the assembling operation can be easily performed. It is preferable that the heat transfer tube for a steam generator according to the present invention is produced by the steps of cold drawing by use of a high-pressure lubricating oil of 40 MPa or more in pressure; solid solution heat treatment; and straightening by a roll straightening machine. Further, it is preferable that the roll straightening machine is a roll straightening machine using at least five pairs of concave globoidal drum type straightening rolls, each pair of rolls being arranged opposite to each other in a vertical direction and in a crossing manner where directions of rotating shafts cross each other.
摘要翻译：在用于蒸汽发生器的传热管中，沿着纵向方向测量管的内表面的表面粗糙度，并且从测量的粗糙度图取得的长度为50mm的尺寸变化量为4μm以下，从管端的长度为1000mm的部分的弯曲弯曲量为1mm以下。因此，当制造管时，可以以高S / N比进行涡流探伤的管的检查，从而可以提高检查效率，并且当将管组装到热交换器中时，可以容易地进行组装操作。本发明的蒸汽发生器用传热管优选通过使用压力为40MPa以上的高压润滑油进行冷拉拔的工序来制造。固溶热处理; 并通过辊矫直机矫直。此外，优选的是，辊矫直机是使用至少五对凹球形滚筒式矫直辊的辊矫直机，每对辊沿垂直方向和横向方向彼此相对地布置，旋转轴彼此交叉。

5. 发明公开

EP2554287A1 STRAIGHTENING ROLL AND METHOD FOR STRAIGHTENING PIPES 有权转让
标题翻译： VERFAHREN ZUM RICHTEN VONRÖHREN
公开(公告)号：EP2554287A1
公开(公告)日：2013-02-06
申请号：EP11762196.1
申请日：2011-03-24
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： KUROIWA, Yoshiyuki , KURODA, Kouichi , YAMAKAWA, Tomio
IPC分类号： B21D3/02
CPC分类号： B21D3/04
摘要： A method for straightening a tube by using an asymmetric roll, which has different diameters D1 (exit side), D2 (entry side) at relative maximum diameter portions, left and right roll shoulder portions, as a straightening roll of a straightener, wherein the roll shoulder having a smaller diameter is disposed to be located on the tube entry side. The straightening roll used therefor comprises roll shoulders 3a and 3b and a roll barrel portion 4, in which D1 > D2 and 0.004 ≤ (D1 - D2)/d ≤ 0.2 (d: outer diameter of tube to be straightened) are satisfied. Further, an aspect of the invention may define radii of curvatures of entry-side and exit-side shoulder potions in a section of the roll cut along a plane including the roll central axis, or a curve representing an outer surface of the roll barrel portion. This roll can suppress the occurrence of leading-end deformation of a tube end portion during the straightening of the tube, thereby achieving enhanced straightening effects.
摘要翻译：作为矫直机的矫直辊的使用不对称辊的直径D1（出射侧），相对最大直径部分D2（进入侧），左右侧肩肩部分的矫正方法，其中，具有较小直径的辊肩设置在管入口侧。使用的矫直辊包括辊肩3a和3b以及辊筒部分4，其中D1> D2和0.004‰¤（D1-D2）/ d‰0.2（d：要矫直的管的外径）满足。此外，本发明的一个方面可以限定沿着包括辊中心轴的平面的辊切割部分中的入口侧和出口侧肩部的曲率半径，或表示辊筒部分的外表面的曲线。该辊可以抑制在管的矫直期间管端部的前端变形的发生，从而实现增强的矫直效果。

6. 发明授权

EP0411167B1 Schäl- und Richtmaschinenanlage zur Bearbeitung stangenförmigen Gutes wie Wellen, Draht und Rohren od. dgl. 失效
标题翻译：剥离和矫直机安装用于处理棒状材料，例如轴，电线和管外径一样。
公开(公告)号：EP0411167B1
公开(公告)日：1993-11-18
申请号：EP89114049.3
申请日：1989-07-29
申请人： Lindemann, Hans
发明人： Lindemann, Hans , Lindemann, Wolfgang, Dr.-Ing. Dipl.-Phys.
IPC分类号： B23B5/12 , B21D3/04
CPC分类号： B21D3/04 , B23B5/12

7. 发明公开

EP0555528A1 A pipe straightening machine 失效
标题翻译： RichtmaschinefürRohre。
公开(公告)号：EP0555528A1
公开(公告)日：1993-08-18
申请号：EP92118388.5
申请日：1992-10-28
申请人： INNSE INNOCENTI ENGINEERING S.p.A.
发明人： Quecchia, Giorgio
IPC分类号： B21D3/04
CPC分类号： B21D3/04
摘要： A pipe straightening machine comprises at least one lower roll (2a) and an upper roll (2b) journalled in respective supports (5), spaced to a distance D between their axes, the machine including, for at least one of the rolls (2a,2b), a hydraulic cylinder-piston unit (6) acting on respective supports (5) thereof to change said distance D between axes.
摘要翻译：管道矫直机包括至少一个下辊（2a）和上辊（2b），所述下辊（2a）和上辊（2b）轴颈连接在相应的支撑件（5）中，在它们的轴线之间间隔开距离D，所述机器包括用于至少一个辊，2b），作用在其相应支撑件（5）上的液压缸 - 活塞单元（6），以改变轴之间的所述距离D.

8. 发明公开

EP0054605A2 Richtmaschine mit 6 oder mehr schräg angestellten Richtrollen 失效
标题翻译： Richtmaschine mit 6 oder mehrschrägangestellten Richtrollen。
公开(公告)号：EP0054605A2
公开(公告)日：1982-06-30
申请号：EP81101167.5
申请日：1981-02-19
申请人： Th. Kieserling & Albrecht GmbH & Co.
发明人： vom Feld, Hans
IPC分类号： B21D3/04
CPC分类号： B21D3/04
摘要： Die Erfindung zeigt eine Lösung, wie der Durchmesserbereich von 6- oder mehr Walzenrichtmaschinen mit zur Durchlaufrichtung des Werkstücks schräg angestellten Richtrollen (7 bis 12) für Draht oder Rohre über die untere Grenze der nach dem Stand der Technik zu richtenden Werkstückdurchmesser hinaus erweitert werden kann. Dazu sind zwischen den aufeinanderfolgenden Richtrollen oder Richtrollengruppen Führungsdüsen (34, 35) für die Werkstücke vorgesehen, die den Zwischenraum zwischen den Rollen überbrücken und das Werkstück dort führen. Die Düsen sind an Tragarmen (26, 27) befestigt, die vom Rand der Maschine bis zwischen die Richtrollen ragen. Die Tragarme sind abnehmbar. Die Düsen werden nur beim Richten der kleinsten Durchmesser verwendet. Die Tragarme mit den Düsen sind in der Höhe verstellbar.
摘要翻译：本发明提出了一种解决方案，在矫直机中可以有六个或更多个矫直辊（7至12），用于线或管，相对于工件的通过方向倾斜布置以将直径范围延伸超出根据现有技术要矫直的工件直径的下限。为此，在顺序矫直辊或辊组之间设置用于工件的引导喷嘴（34,35），其将辊子之间的间隙桥接并在其上引导工件。喷嘴被紧固到从机器的边缘突出到矫直辊之间的支撑臂（26,27）。可以移除支撑臂。喷嘴仅用于矫直最小直径。具有喷嘴的支撑臂可以在高度上调节。

9. 发明公开

EP0051950A2 Mobile machine for straightening tubes 失效
标题翻译： Fahrbare RichtmaschinefürRohre。
公开(公告)号：EP0051950A2
公开(公告)日：1982-05-19
申请号：EP81305037.4
申请日：1981-10-26
申请人： OPENGLEAD LIMITED
发明人： Scriven, Cyril Edward
IPC分类号： B21D3/04
CPC分类号： B21D3/04
摘要： A mobile scaffold straightening machine comprising a chassis 1 and four road wheels 2, 3. A prime mover 7 is mounted on the chassis and drives a hydraulic pump 11. Fluid from the pump can be directed via a hydraulic circuit to a plurality of hydraulic drive motors for driving respective rollers 34-37 through which scaffold or similar tubes may be fed for straightening. The straightening rollers are waisted and their axes are inclined to the path of the tube being bent in such a manner that the line of contact of the tube is a tangent to the centre of the curved surface of each roller.
摘要翻译：一种移动式脚手架矫直机，其包括底盘1和四个车轮2,3。原动机7安装在底盘上并驱动液压泵11.来自泵的流体可经由液压回路引导至多个液压驱动用于驱动相应辊子34-37的电动机，脚架或类似的管子可以通过所述马达进给以矫直。矫正辊是腰部的，并且它们的轴线以使得管的接触线与每个辊的弯曲表面的中心相切的方式倾斜于弯曲管的路径。

10. 发明授权

EP2853614B1 DUPLEX STAINLESS STEEL TUBE AND METHOD FOR PRODUCING SAME 有权转让
标题翻译：双相不锈钢管和方法及其生产
公开(公告)号：EP2853614B1
公开(公告)日：2017-04-12
申请号：EP13833720.9
申请日：2013-08-22
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： SAWAWATARI, Naoki , KURODA, Koichi , UEYAMA, Masaki , UGAWA, Yusuke
IPC分类号： B21B3/02 , B21D3/04 , C21D8/10 , C22C38/00 , C22C38/58 , C21D6/00 , C21D7/10 , C21D9/08 , C22C38/02 , C22C38/04 , C22C38/42 , C22C38/44 , B21B19/06
CPC分类号： C21D9/08 , B21B3/02 , B21B19/06 , B21D3/04 , C21D6/004 , C21D6/005 , C21D6/008 , C21D7/10 , C21D8/10 , C21D8/105 , C21D2211/001 , C21D2211/005 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/42 , C22C38/44

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