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2. 发明授权

EP2878696B1 ELECTRIC-RESISTANCE-WELDED STEEL PIPE EXHIBITING EXCELLENT HIC RESISTANCE AND LOW-TEMPERATURE TOUGHNESS AT ELECTRIC-RESISTANCE-WELDED PARTS, AND PRODUCTION METHOD THEREFOR 有权
标题翻译：随着对生产优秀的耐HIC性能及WIDERSTANDSGESCHWEISSTEN零部件的耐低温性和工艺WIDERSTANDSGESCHWEISSTES钢管
公开(公告)号：EP2878696B1
公开(公告)日：2017-01-04
申请号：EP13839516.5
申请日：2013-09-20
申请人： JFE Steel Corporation
发明人： TOYODA, Shunsuke , GOTO, Sota , OKABE, Takatoshi , YONEMOTO, Atsushi
IPC分类号： B21C37/08 , B21D5/12 , C21D9/08 , C21D9/50 , C22C38/00 , C22C38/04 , C22C38/58 , B23K11/08 , B23K13/00 , B23K35/30 , C22C38/02 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/18 , C22C38/16 , B23K101/06 , B23K103/04
CPC分类号： B23K11/0006 , B21B23/00 , B21C37/08 , B23K11/0873 , B23K13/025 , B23K35/3053 , B23K35/3073 , B23K2201/06 , B23K2203/04 , C21D1/60 , C21D1/613 , C21D6/001 , C21D6/002 , C21D6/004 , C21D6/005 , C21D6/008 , C21D9/08 , C21D9/50 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/18 , C22C38/20 , C22C38/28 , C22C38/32 , C22C38/34 , C22C38/38 , F16L9/02 , Y10T428/12
摘要： The invention provides electric resistance welded steel pipes or steel tubes with a tensile property TS of not less than 434 MPa which have electric resistance welded parts exhibiting both excellent HIC resistance and excellent low-temperature toughness, and methods for manufacturing such steel pipes or steel tubes. The electric resistance welded steel pipe or steel tube has a controlled chemical composition including, by mass%, C: 0.03 to 0.59%, Si: 0.10 to 0.50%, Mn: 0.40 to 2.10% and Al: 0.01 to 0.35%, the Si content and the Mn content being such that Mn/Si (mass ratio) is in the range of 6.0 to 9.0, the balance being Fe and inevitable impurities, the steel pipe or steel tube having a tensile strength TS of not less than 434 MPa, the steel pipe or steel tube including an electric resistance welded part in which the total amount of silicon, manganese, aluminum, calcium and chromium present in inclusions having an equivalent circle diameter of 8 µm or more is not more than 16 ppm in terms of mass% relative to the total mass of a 2 mm wide portion of the electric resistance welded part including base iron, the electric resistance welded part having both excellent HIC resistance and excellent low-temperature toughness.

3. 发明授权

EP0249947B1 Vorrichtung zum Herstellen von längsnahtgeschweissten Rohren aus einem Blechband 失效
标题翻译：使用金属条制造具有直径的管的管子的装置
公开(公告)号：EP0249947B1
公开(公告)日：1990-09-26
申请号：EP87108661.7
申请日：1987-06-16
申请人： Schoeller Werk GmbH & Co KG
发明人： Crome, Rolf, Dipl.-Ing.
IPC分类号： B23K11/08 , B23K31/02 , B21C37/08
CPC分类号： B21C37/08 , B23K31/027

4. 发明公开

EP0214560A3 Continuous motion circumferential seam welder 失效
标题翻译：连续运动圆弧焊接机
公开(公告)号：EP0214560A3
公开(公告)日：1988-01-07
申请号：EP86111904
申请日：1986-08-28
申请人： NEWCOR, INC.
发明人： Geiermann, Thomas Joseph
IPC分类号： B23K11/08
CPC分类号： B23K11/093
摘要： A method and apparatus for creating a circumferential seam weld in surrounding relationship to a cylindrical workpiece. The workpiece is moved continuously along a work path at a preselected velocity, and is simultaneously supported for free rotation about its longitudinal central axis. The workpiece moves into engagement with opposed surfaces defined by a pair of electrodes, one of which moves relative to the other and relative to the workpiece through approximately one-half revolution, whereby the two electrodes simultaneously form two welds which are about 180° apart and which may individually extend up to a total angle of rotation of about 180°, or slightly in excess thereof, so that the welds overlap.

5. 发明公开

EP0249947A1 Vorrichtung zum Herstellen von längsnahtgeschweissten Rohren aus einem Blechband 失效
标题翻译： Vorrichtung zum Herstellen vonlängsnahtgeschweisstenRohren aus einem Blechband。
公开(公告)号：EP0249947A1
公开(公告)日：1987-12-23
申请号：EP87108661.7
申请日：1987-06-16
申请人： Schoeller Werk GmbH & Co KG
发明人： Crome, Rolf, Dipl.-Ing.
IPC分类号： B23K11/08 , B23K31/02 , B21C37/08
CPC分类号： B21C37/08 , B23K31/027
摘要： Vorrichtung zum Herstellen von längsnahtgeschweißten Rohren aus einem Metallband, mit einer aus mehreren Rollenpaaren gebildeten Formstation (3) zum Erzeugen eines Schlitzrohres aus dem Metallband, mit einer Schweißstation (8), die Rollelektroden (9) und eine nachgeschaltete Entgrateinrichtung (13) aufweist, und mit einer aus wenigstens zwei versetzt zueinander angeordneten Rollenpaaren (14, 15) gebildeten Kalibrierstation (16) für das fertig geschweißte Rohr (12) sowie mit einer am fertigen Rohr angreifenden Zugvorrichtung (17), wobei wenigstens in der Formstation (3) alle Rollenpaare (4, 5, 6, 7) in einem lösbar mit einem Maschinengestell (22) verbundenen, kastenartigen Längsrahmen (21) gelagert sind, der in seinem Querschnitt im wesentlichen symmetrisch zur Durchlaufachse des Metallbandes (2) ausgebildet ist.
摘要翻译： 1.一种用于从金属带沿着纵向接缝焊接的管的装置，具有由多对辊（4-7）形成的成形台（3），用于从金属条（2）产生裂开管，具有焊接站（8），其具有一对焊接辊（9）和后续的去毛刺设备（13），并且具有由相对偏移的至少两对辊（14,15）形成的校准站（16）相对于成品焊接管（11）并且还具有与成品管接合的拉拔装置（17），其特征在于，至少在成型台（3）中，在具有成对辊的工位中，所有成对的辊子（4,5,6,7）安装在可拆卸地紧固到机架（22）上的盒状纵向框架（21）中，其纵向框架的横截面设计成基本上对称于金属条（2），并且纵向框架（21）由至少两个平行的纵向条（25）形成，彼此刚性地连接，各个滚子（4,5,6,7）各自松动地安装在轴（26）上，轴（26）可拆卸地连接到纵向杆（25），并且，所述轴（26）的至少一部分同时被设计成能够与所述纵向杆（25）一起被支撑为所述纵向框架（21）的加强件。

6. 发明公开

EP0214560A2 Continuous motion circumferential seam welder 失效
标题翻译：环缝焊接装置与连续进料。
公开(公告)号：EP0214560A2
公开(公告)日：1987-03-18
申请号：EP86111904.8
申请日：1986-08-28
申请人： NEWCOR, INC.
发明人： Geiermann, Thomas Joseph
IPC分类号： B23K11/00 , B23K11/08
CPC分类号： B23K11/093
摘要： A method and apparatus for creating a circumferential seam weld in surrounding relationship to a cylindrical workpiece. The workpiece is moved continuously along a work path at a preselected velocity, and is simultaneously supported for free rotation about its longitudinal central axis. The workpiece moves into engagement with opposed surfaces defined by a pair of electrodes, one of which moves relative to the other and relative to the workpiece through approximately one-half revolution, whereby the two electrodes simultaneously form two welds which are about 180° apart and which may individually extend up to a total angle of rotation of about 180°, or slightly in excess thereof, so that the welds overlap.

7. 发明公开

EP4453265A1 STEEL GRADE FOR A TUBE FOR LOW INTERNAL PRESSURE APPLICATIONS 失效
公开(公告)号：EP4453265A1
公开(公告)日：2024-10-30
申请号：EP22844105.1
申请日：2022-12-22
申请人： Tata Steel Nederland Technology B.V.
发明人： VAN DER HOEVEN, Job, Anthonius , CRUIJFF, Marcel , VAN DEN BERG, Frenk , VAN DER WEIJDE, Dammes, Hans
IPC分类号： C21D9/08 , B21C37/12 , B23K9/032 , B23K11/08 , C22C38/02 , C22C38/04 , C22C38/06 , F16L9/16 , B21B37/16
CPC分类号： C21D9/08 , F16L9/165 , B21C37/122 , C21D2211/00520130101 , C22C38/02 , C22C38/04 , C22C38/06

8. 发明授权

EP3854509B1 VORRICHTUNG FÜR EINE SCHWEISSSTEUERUNG UND VERFAHREN ZUR ERZEUGUNG VON KRAFTWERTEN BEI DER STEUERUNG EINES SCHWEISSWERKZEUGS 有权
公开(公告)号：EP3854509B1
公开(公告)日：2024-02-07
申请号：EP20214031.5
申请日：2020-12-15
发明人： Stolze, Josephine
IPC分类号： B23K11/11 , B23K11/08 , B23K11/25 , B23K101/00 , B23K101/18

9. 发明授权

EP2868763B1 HIGH CARBON STEEL PIPE HAVING EXCELLENT COLD WORKABILITY, MACHINABILITY, AND QUENCHING PROPERTIES, AND METHOD FOR MANUFACTURING SAME 有权
标题翻译：具有优异的冷加工性，加工性和淬火性的高碳钢管及其制造方法
公开(公告)号：EP2868763B1
公开(公告)日：2018-04-18
申请号：EP12880052.1
申请日：2012-06-28
申请人： JFE Steel Corporation
发明人： ARATANI, Masatoshi , TOYODA, Shunsuke , OKABE, Takatoshi , KAWABATA, Yoshikazu , IWAZAKI, Kenichi
IPC分类号： C22C38/00 , C21D9/08 , C22C38/06 , C22C38/38 , B21B17/14 , C21D8/10 , C22C38/02 , C22C38/04 , B23K11/08 , B23K11/16 , B23K13/02
CPC分类号： C22C38/16 , B21B17/14 , B23K11/08 , B23K11/16 , B23K13/025 , B23K2101/06 , B23K2103/04 , C21D6/005 , C21D6/008 , C21D8/105 , C21D9/08 , C21D2211/003 , C21D2211/005 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14
摘要： Provided are a high-carbon electric-resistance-welded steel tube that combines superior cold workability, machinability, and hardenability and a method for manufacturing such a high-carbon electric-resistance-welded steel tube. Specifically, a high-carbon steel tube is provided as a raw steel tube. The raw steel tube has a composition containing, by mass, 0.25% to 0.60% carbon, 0.01% to 2.0% silicon, 0.2% to 3.0% manganese, 0.001% to 0.1% aluminum, 0.001% to 0.05% phosphorus, 0.02% or less sulfur, 0.0010% to 0.0100% nitrogen, 0.0003% to 0.0050% boron, and 0.0001% to 0.0050% calcium, the balance being iron and incidental impurities. The raw steel tube is heated to and soaked at an Ac 3 transformation point or higher and is then subjected to stretch-reducing rolling at a finishing temperature of rolling of 900°C to (Ac 1 transformation point) with a cumulative reduction in diameter of 30% to 70% within the temperature range of 900°C or lower. This allows the formation, without spheroidizing annealing, of a microstructure containing a ferrite phase and cementite grains dispersed therein that have an average grain size d of 0.1 to less than 0.5 µm and an average distance L between surfaces of adjacent cementite grains of 0.5 to 10 µm. In particular, the steel tube has significantly improved machinability.

10. 发明授权

EP0834240B1 INDUCTION WELDING OF TUBING WITH MULTIPLE INDUCTION COILS 失效
标题翻译：管件的使用帮助若干感应线圈的感应
公开(公告)号：EP0834240B1
公开(公告)日：2006-01-18
申请号：EP96914732.1
申请日：1996-05-21
申请人： Thermatool Corp.
发明人： RUDD, Wallace, C.
IPC分类号： H05B6/40 , B23K11/08 , B23K13/02
CPC分类号： H05B6/44 , B23K13/025 , H05B6/40 , H05B6/42
摘要： A method and apparatus in which edge portions of metal parts (1), the edge portions being disposed with opposed surfaces (3, 4), are heated by high frequency electrical currents as the edge portions are advanced and brought together at a weld point (5). The electrical currents are induced in the edge portions in advance of the weld point (5) by two induction coils (6, 7), one at one side of the metal parts (1) and the other at the other side of the metal parts (1), disposed and energized from a high frequency electrical source so that the electrical currents at the opposed surfaces flow in opposite directions at any given time and the currents induced by one coil (6) add to the currents induced by the other coil (7).

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