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公开(公告)号：EP2173917A2
公开(公告)日：2010-04-14
申请号：EP08835615.9
申请日：2008-07-02
IPC分类号： C22C38/22
摘要： The present application is directed towards a steel compositions that provide improved properties under corrosive environments by providing protection on the surface of the steel, reducing the permeation of hydrogen. Good process control, in terms of heat treatment working window and resistance to surface oxidation at rolling temperature, are further provided.
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2.发明公开Threaded joint with improved resilient seal ring 有权Gewindeverbindungsstückmit verb desserten elastischen Dichtungsringen
公开(公告)号：EP2096253A1
公开(公告)日：2009-09-02
申请号：EP08102184.2
申请日：2008-02-29
IPC分类号： E21B17/042 , F16L15/04
CPC分类号： E21B17/042 , F16L15/003 , Y10T403/52
摘要： A threaded joint (1) comprises a first seal ring (30) having a tapered shape in a cross section on an axial plane, this ring having an L-shaped metal reinforcement ring (34) embedded in it, and a second seal ring (6) positioned more internal to the first seal ring (30) and located in a housing (18) between the end of a threaded section (5) and the nose (15) of the box. The second seal ring (6) has a first base, a second base axially opposite to the first base, and protruding annular ribs either on the external surface or on an internal surface.
摘要翻译： 螺纹接头（1）包括在轴向平面上具有锥形形状的第一密封环（30），该环具有嵌入其中的L形金属加强环（34）和第二密封环 6）定位在第一密封环（30）的内部，并且位于螺纹部分（5）的端部与箱体的鼻部（15）之间的壳体（18）中。 第二密封环（6）具有第一基座，与第一基座轴向相对的第二基座和在外表面上或在内表面上的突出的环形肋。
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3.发明公开SEAMLESS PRECISION STEEL TUBES WITH IMPROVED ISOTROPIC TOUGHNESS AT LOW TEMPERATURE FOR HYDRAULIC CYLINDERS AND PROCESS FOR OBTAINING THE SAME 有权具有改进的各向同性的冲击强度无缝钢管精密钢管的AT液压缸和用于生产低温工艺
公开(公告)号：EP2044228A1
公开(公告)日：2009-04-08
申请号：EP06763964.1
申请日：2006-06-29
摘要： Process for manufacturing seamless precision steel tubes with improved isotropic toughness at low temperature for hydraulic cylinders comprising the following steps; -(i) providing a steel having a composition comprising 0.06 -0,15% by weight of carbon, 0.30 - 2.5% by weight of Mn, and 0.10 - 0.60% by weight of Si, -(ii) hot-rolling the said steel at a temperature higher than Ac3 such as to obtain a seamless steel tube, -(iii) heating the said seamless steel tube at a temperature in the range between Ac1 and Ac3, -(iv) quenching the said heated seamless steel tube, such as to establish a dual (or multi-) phase microstructure in the steel employed, composed of ferrite and martensite and optionally bainite and/or retained austenite, -(v) cold drawing the quenched seamless steel tube such as to provide a seamless precision steel tube of the desired dimensions, -(vi) subjecting the so-obtained seamless precision steel tube to stress relieving treatment to improve its isotropic toughness, and optionally -(vii) straightening the so-obtained seamless precision steel tube with improved toughness.
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公开(公告)号：EP1540227B1
公开(公告)日：2007-12-12
申请号：EP03793808.1
申请日：2003-09-06
IPC分类号： F16L15/06
CPC分类号： F16L15/004 , E21B17/042
摘要： A threaded tube joint for oil extraction industry has a trapezoidal thread and a toroidal sealing surface (11) placed at its end near the thread and engages, for sealing, a corresponding frusto-conical sealing surface (12) wherein the toroidal sealing surface (11) has a radius Rs value comprised within the range given by the formula (I).
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5.发明公开
公开(公告)号：EP1678335A1
公开(公告)日：2006-07-12
申请号：EP04769605.9
申请日：2004-10-11
摘要： A low carbon alloy steel tube and a method of manufacturing the same, in which the steel tube consists essentially of, by weight: about 0.06% to about 0.18% carbon; about 0.5% to about 1.5% manganese; about 0.1% to about 0.5% silicon; up to about 0.015% sulfur; up to about 0.025% phosphorous; up to about 0.50% nickel; about 0.1% to about 1.0% chromium; about 0.1% to about 1.0% molybdenum; about 0.01% to about 0.10% vanadium; about 0.01% to about 0.10% titanium; about 0.05% to about 0.35% copper; about 0.010% to about 0.050% aluminum; up to about 0.05% niobium; up to about 0.15% residual elements; and the balance iron and incidental impurities. The steel has a tensile strength of at least about 145 ksi and exhibits ductile behavior at temperatures as low as -60 °C.
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公开(公告)号：EP1554518A1
公开(公告)日：2005-07-20
申请号：EP03788949.0
申请日：2003-10-10
CPC分类号： F16L15/001 , C10M103/04 , C10M103/06 , C10N2230/06 , C10N2250/121 , C10N2250/14 , C10N2280/00 , E21B17/042 , F16L58/182
摘要： A threaded metallic pipe for oil extraction industry has a threaded end portion with treated surface in which the metal surface has a roughness (Ra) comprised of 2,0 µm and 6,0 µm, which is covered by a uniform layer (7) of a dry corrosion inhibiting coating and a second uniform layer (8) of dry lubricant coating. Alternatively the layers (8, 9) combined into one uniform layer (9) of a dry corrosion inhibiting coating containing a dispersion of particles of solid lubricant.
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7.发明公开Measurement method and device for thread parameters 无效Messverfahren und MessvorrichtungfürGewindeparameter
公开(公告)号：EP2194358A1
公开(公告)日：2010-06-09
申请号：EP08170841.4
申请日：2008-12-05
IPC分类号： G01B11/24
CPC分类号： G01B11/2425
摘要： A measurement method for thread parameters for a threaded object (3), by means of a measurement device (1) defining a spatial reference system (X, Y, Z) incorporating an optical sensor (5) to retrieve the shape of the threaded object, and defining a spatial reference system (X', Y', Z'), the measurement device (1) having a computer to assemble a first matrix that describes the quadratic form representing the threaded object in the spatial reference system (X, Y, Z), thus providing the relationship between the two spatial reference systems. The method comprises the steps of:
a) predefining at least one trajectory of the at least one optical sensor (5) on the threaded object, along which measurement points are selected such that the matrix evaluated on these values satisfies the condition that it has maximum rank,
b) performing a first scanning operation by the at least one optical sensor (5) along said at least one trajectory and retrieving data of the predefined measurement points,
c) feeding these data to the first matrix and calculating an axes transformation matrix relating the first spatial reference system with the second spatial reference system for defining the relative position of the threaded object with respect to the second spatial reference system,
d) using the axes transformation matrix to convert all data retrieved from the second spatial reference system to the first spatial reference system.摘要翻译： 一种用于螺纹对象（3）的螺纹参数的测量方法，借助于测量装置（1），所述测量装置定义了包含光学传感器（5）的空间参考系（X，Y，Z）以检索所述螺纹对象的形状 ，并且定义空间参考系统（X'，Y'，Z'），所述测量装置（1）具有计算机，以组装描述在所述空间参考系统（X，Y）中表示所述线程对象的二次形式的第一矩阵 ，Z），从而提供两个空间参考系之间的关系。 该方法包括以下步骤：a）预先确定螺纹物体上的至少一个光学传感器（5）的至少一个轨迹，沿着这些轨迹选择测量点，使得在这些值上评估的矩阵满足其具有最大值 等级，b）沿着所述至少一个轨迹执行所述至少一个光学传感器（5）的第一扫描操作并检索预定义的测量点的数据，c）将这些数据馈送到第一矩阵并计算相关的轴变换矩阵 所述第一空间参考系统具有用于定义所述螺纹对象相对于所述第二空间参考系统的相对位置的第二空间参考系，d）使用所述轴变换矩阵将从所述第二空间参考系统检索到的所有数据转换为所述第一空间参考系 空间参考系统。
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8.发明公开Threaded joint with high radial loads and differentially treated surfaces 有权Gewindeverbindungsstückmit hoher Radiallast und unterschiedlich behandeltenOberflächen
公开(公告)号：EP2028403A1
公开(公告)日：2009-02-25
申请号：EP07114961.1
申请日：2007-08-24
发明人： Santi, Nestor J.
IPC分类号： F16L15/06
CPC分类号： F16L15/004 , E21B17/042
摘要： A threaded joint has an interference between thread roots of pin and thread crests of the box of value comprised between 1% and 5% of the average thickness of the connection, and a root to load flank radius R comprised in the range of 0,2 mm and 0,4 mm and a surface treatment comprising shot peening applied to the beginning and end of the threaded zone of the pin. In other embodiments the interference can be between thread roots of box and thread crests of the pin.
摘要翻译： 螺纹接头在销的螺纹根部和螺纹牙顶之间的干涉在箱的平均厚度的1％和5％之间，并且负载侧面半径R的根部包含在0.2的范围内 mm和0.4mm，并且表面处理包括施加到销的螺纹区域的开始和结束处的喷丸硬化。 在其他实施例中，干涉可以在盒的螺纹根和销的螺纹牙顶之间。
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9.发明公开
公开(公告)号：EP2009340A1
公开(公告)日：2008-12-31
申请号：EP07111204.9
申请日：2007-06-27
IPC分类号： F16L15/04 , F16L17/10 , E21B17/042
CPC分类号： F16L15/003 , E21B17/042 , F16L17/10
摘要： A threaded joint comprises one or a pair of seal rings (11, 11') having a frustoconical section with one or more annular ribs (9) protruding from its internal surface, and located in a portion of the pin surface after the end of the threaded section of the pin (3) in tight sealing contact with an internal surface of an annular groove (10) of the box (2) by means of its external cylindrical surface (25) and in tight sealing contact with an external surface of the pin (3) by means of its annular ribs (9). The threaded joint has hydraulic actuating means to pressurize the seal ring (11) against said pin, to provide improved sealability of the joint.
摘要翻译： 螺纹接头包括一个或一对具有截头圆锥形部分的密封环（11,11'），所述截头圆锥形部分具有从其内表面突出的一个或多个环形肋（9），并且位于所述销表面的一部分之后 销（3）的螺纹部分通过其外部圆柱形表面（25）与箱体（2）的环形槽（10）的内表面紧密密封接触，并且与外部表面紧密接触 销（3）通过其环形肋（9）。 螺纹接头具有用于将密封环（11）压靠在所述销上的液压致动装置，以提供接头的改善的密封性。
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10.发明公开
公开(公告)号：EP2007914A2
公开(公告)日：2008-12-31
申请号：EP07734171.7
申请日：2007-04-02
IPC分类号： C22C38/00
CPC分类号： C21D8/10 , C21D8/00 , C21D9/08 , C21D9/50 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/28 , C22C38/44
摘要： A low carbon alloy steel tube and a method of manufacturing the same, especially for a stored gas inflator pressure vessel, in which the steel tube consists essentially of, by weight: about 0.06% to about 0.18% carbon, about 0.3% to about 1.5% manganese, about 0.05% to about 0.5% silicon, up to about 0.015% sulfur, up to about 0.025% phosphorous, and at least one of the following elements: up to about 0.30% vanadium, up to about 0.10% aluminum, up to about 0.06% niobium, up to about 1% chromium, up to about 0.70 % nickel, up to about 0.70 % molybdenum, up to about 0.35 % copper, up to about 0.15% residual elements, and the balance iron and incidental impurities. After a high heating rate of about 100 °C. per second; rapidly and fully quenching the steel tubing in a water-based quenching solution at a cooling rate of about 100 °C. per second. The steel has a tensile strength of at least about 145 ksi and as high as 220 ksi and exhibits ductile behavior at temperatures as low as -100 °C.
摘要翻译： 低碳合金钢管及其制造尤其用于存储气体发生器压力容器中的相同，爱的方法，其中，所述钢管besteht本质上的，按重量计：约0.06％至约0.18％碳，约0.3％至约1.5 ％的锰，约0.05％至约0.5％的硅，高达大约0.015％的硫，至多约0.025％的磷，以及下列元素中的至少一种：最高达约0.30％钒，高达吨约12：10％的铝，至多 约0.06％的铌，至多约1％的铬，至多约0.70％的镍，至多约0.70％的钼，最多约0.35％至铜，至多约0.15％至残余元素，以及余量的铁和附带的杂质。 约每秒100℃的高加热速率之后; 以每秒约100℃的冷却速度快速充分骤冷的水基淬火溶液中的钢管结合。 该钢具有至少约145 ksi的拉伸强度和高至220 ksi的展品和延展性在温度低至-100℃
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