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公开(公告)号：US06659509B2
公开(公告)日：2003-12-09
申请号：US10361763
申请日：2003-02-11
IPC分类号： F16L1504
CPC分类号： C23C28/00 , C10M103/02 , C10M103/04 , C10M103/06 , C10M107/38 , C10M2201/0413 , C10M2201/053 , C10M2201/0613 , C10M2201/0653 , C10M2201/0663 , C10M2213/0623 , C10N2220/082 , C10N2250/121 , C10N2250/14 , C23C24/08 , C23C26/00 , C23C28/321 , C23C28/3225 , C23C28/345 , C23C30/00 , E21B17/042 , F16L15/001 , F16L15/004 , F16L58/1027 , F16L58/182
摘要： This invention relates to a threaded joint for steel pipes which comprises a pin and a box each having a contact surface including a threaded portion and an unthreaded metal contact portion and which guarantees galling resistance and gas tightness in a stable manner without application of a compound grease. A solid lubricating coating comprising a lubricating powder (e.g., molybdenum disulfide) and an organic or inorganic binder is formed on the contact surface of at least one of the pin and the box. The proportion of area of a cross section along the thickness of the solid lubricating coating which is occupied by secondary particles of the lubricating powder having an equivalent circular diameter of 15-60 &mgr;m is from 5-90%. Alternatively, the solid lubricating coating comprises, in addition to the lubricating powder, a fibrous filler (e.g., inorganic whiskers) in such an amount that the mass ratio of the fibrous filler to the binder is 0.01-0.5. As a result, galling resistance is improved, particularly at high temperatures.
摘要翻译： 本发明涉及一种用于钢管的螺纹接头，其包括销和箱，每个销和盒均具有包括螺纹部分和无螺纹金属接触部分的接触表面，并且以不稳定的方式保证耐刮擦性和气密性，而不施加复合润滑脂 。 在销和盒中的至少一个的接触表面上形成包含润滑粉末（例如二硫化钼）和有机或无机粘合剂的固体润滑涂层。 沿着固体润滑涂层的厚度的面积的比例，该固体润滑涂层占据具有等同圆直径为15-60μm的润滑粉末的二次颗粒占5-90％。 或者，固体润滑涂层除了润滑粉末之外还包含纤维填料（例如无机晶须），其量使得纤维填料与粘合剂的质量比为0.01-0.5。 结果，耐擦伤性得到改善，特别是在高温下。
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公开(公告)号：US07360798B2
公开(公告)日：2008-04-22
申请号：US10765837
申请日：2004-01-29
IPC分类号： F16L15/00 , C10M159/06
CPC分类号： C10M177/00 , C10M2201/062 , C10M2201/0623 , C10M2201/103 , C10M2201/1033 , C10M2203/10 , C10M2203/1006 , C10M2205/16 , C10M2207/0285 , C10M2207/2623 , C10M2207/281 , C10M2207/2815 , C10M2219/046 , C10M2219/0463 , C10N2240/22 , C10N2250/10 , C10N2250/14 , E21B17/042 , F16L15/004 , F16L58/182 , Y10T428/1393
摘要： A threaded joint for steel pipes comprising a pin 1 and a box 2 each having a contact surface comprising a threaded portion 3 or 4 and an unthreaded metal contact portion 8 is provided with improved anti-galling propertied by forming a lubricating coating on the contact surface of at least one of the pin and the box, the lubricating coating exhibiting a self-repairing function by liquid lubrication and having a decreased greasiness. The lubricating coating is (1) a coating which comprises a lower lubricant layer which is in liquid form in the temperature range of above 0° C. and below 40° C. and an upper lubricant layer which is in solid form at 40° C., or (2) a coating which is semi-solid or solid at 40° C. and is formed of a mixture comprising a lubricating oil which is in liquid form in the temperature range of above 0° C. and below 40° C. and a wax which is in solid form at 40° C., the mixture preferably having been heated so as to liquefy the wax and dissolve in each other the wax and lubricant oil.
摘要翻译： 一种用于钢管的螺纹接头，其包括销1和盒2，每个具有包括螺纹部分3或4的接触表面和无螺纹金属接触部分8的盒子2具有通过在接触表面上形成润滑涂层而具有改进的防磨损 的销和盒中的至少一个，润滑涂层通过液体润滑显示出自修复功能并且具有降低的油脂性。 润滑涂层是（1）涂层，其包括在0℃以上且低于40℃的温度范围内为液态的下润滑剂层，以及在40℃为固体形式的上润滑剂层 ，或（2）在40℃下为半固体或固体的涂层，并且由包含在0℃以上且低于40℃的温度范围内为液态的润滑油的混合物形成的涂层 和在40℃下为固体形式的蜡，所述混合物优选已被加热以使蜡液化并彼此溶解蜡和润滑油。
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3.发明授权Threaded joint for steel pipes having improved galling resistance and rust-preventing properties 有权钢管螺纹接头具有改善的耐磨损性和防锈性能公开(公告)号：US06746057B2
公开(公告)日：2004-06-08
申请号：US10253421
申请日：2002-09-25
申请人： Kunio Goto , Toshiro Anraku
发明人： Kunio Goto , Toshiro Anraku
IPC分类号： F16L1504
CPC分类号： C10M169/02 , C10M2205/022 , C10M2207/0285 , C10M2207/126 , C10M2207/2623 , C10M2207/283 , C10M2209/084 , C10M2219/024 , C10M2219/0463 , C10M2223/04 , C10M2223/045 , C10N2230/12 , C10N2230/52 , F16L15/001 , F16L58/08 , F16L58/182 , Y10T428/1393
摘要： In a threaded joint for steel pipes comprising a pin and a box capable of mating with each other, the pin having an externally threaded portion and an unthreaded metal contact portion as a mating surface, and the box having an internally threaded portion and an unthreaded metal contact portion as a mating surface, the mating surface of at least one of the pin and the box is coated with a lower porous zinc or zinc alloy layer by blast plating and with an upper coating which is either a solid lubricating coating (comprising a lubricating powder in an organic or in organic binder) or a liquid, heavy metal powder-free coating (e.g., a liquid coating based on a highly basic organic acid metal salt such as a highly basic metal sulfonate). The threaded joint exhibits improved galling resistance, rust-preventing properties, and gas tightness even after exposure to a high temperature and makes it possible to perform repeated fastening (make-up) and loosening (break-out) in a high-temperature oil well without application of a compound grease containing a heavy metal powder.
摘要翻译： 在一种用于钢管的螺纹接头中，该螺纹接头用于包括能够彼此配合的销和箱体，该销具有外螺纹部分和无螺纹金属接触部分作为配合表面，并且该箱具有内螺纹部分和无螺纹金属 接触部分作为配合表面，销和箱中的至少一个的配合表面通过喷镀被涂覆有下多孔锌或锌合金层，并且具有上涂层，其为固体润滑涂层（包括润滑剂 有机或有机粘合剂中的粉末）或液体，重金属粉末涂料（例如基于高碱性有机酸金属盐如高碱性金属磺酸盐的液体涂料）。 螺纹接头即使在高温下暴露后也具有改善的耐磨损性，防锈性和气密性，并且可以在高温油井中进行重复的紧固（补充）和松动（脱落） 而不应用含有重金属粉末的复合润滑脂。
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公开(公告)号：US20050210944A1
公开(公告)日：2005-09-29
申请号：US11135409
申请日：2005-05-24
摘要： The present invention relates to a making method for a seamless metallic tube with a tilting roll type piercing rolling mill (piercer). According to the making method for a seamless metallic tube of the present invention, the rotary forging effect and the circumferential shearing strain can be significantly suppressed without generating uncompleted engagement of a billet. Accordingly, a product having reduced inside defects and excellent inside quality can be produced in high productivity. Further, by strengthening a plug nose rolling portion, a sharpened plug nose is obtained and an engagement limit can be increased. Additionally, a product further excellent in the inside quality can be efficiently produced. Accordingly, the present invention can be applied to wide fields of the piercing rolling of the seamless metallic tube.
摘要翻译： 本发明涉及一种具有倾斜辊式穿孔轧机（穿孔机）的无缝金属管的制造方法。 根据本发明的无缝金属管的制造方法，可以显着地抑制旋转锻造效应和周向剪切应变，而不产生坯料的未完全接合。 因此，能够高生产率地制造内部缺陷减少，内部质量优异的产品。 此外，通过加强塞子鼻部滚动部分，获得尖锐的塞子鼻部并且可以增加接合极限。 另外，可以有效地制造进一步优良的内部品质的产品。 因此，本发明可以应用于无缝金属管的穿孔轧制的广泛领域。
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公开(公告)号：US5824264A
公开(公告)日：1998-10-20
申请号：US686397
申请日：1996-07-25
申请人： Hideki Uno , Yoshitaka Nishiyama , Yoshiatsu Sawaragi , Nobuo Otsuka , Kazuhiro Ogawa , Toshiro Anraku
发明人： Hideki Uno , Yoshitaka Nishiyama , Yoshiatsu Sawaragi , Nobuo Otsuka , Kazuhiro Ogawa , Toshiro Anraku
CPC分类号： C22C38/54
摘要： A high-temperature austenitic stainless steel having improved weldability is disclosed. The steel consists essentially, by weight, of: C: 0.05%-0.15%, Si: less than 1.0%, Mn: 2.0% or less, P: 0.04% or less, S: 0.01% or less, Cr: 20%-30%, Ni: 10%-15%, N: 0.10%-0.30%, B: 0.0010%-0.01%, one or two of La and Ce: 0.01%-0.10% in total, Al: 0.01%-0.20%, and a balance of Fe and incidental impurities, wherein the contents of N and Al satisfy the following inequality: % N+2.times.% Al.ltoreq.0.500% and the value for Ni balance (Ni bal.) of the steel calculated by the following formula is in the range of from -1.0% to +3.0%: Ni bal. (%)=% Ni+0.5.times.% Mn+30.times.(% C+% N)-1.1.times.(% Cr+1.5.times.% Si)+8.2.
摘要翻译： 公开了具有改进的可焊性的高温奥氏体不锈钢。 钢主要由以下组成：C：0.05％-0.15％，Si：小于1.0％，Mn：2.0％以下，P：0.04％以下，S：0.01％以下，Cr：20％ -30％，Ni：10％-15％，N：0.10％-0.30％，B：0.0010％-0.01％，La和Ce中的一种或两种：总计0.01％-0.10％，Al：0.01％-0.20 ％，余量为Fe和杂质，其中N和Al的含量满足以下不等式：％N + 2x％Al
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6.发明授权
公开(公告)号：US5660211A
公开(公告)日：1997-08-26
申请号：US2492
申请日：1993-01-06
申请人： Nobuhiko Hiraide , Masakatsu Ueda , Toshiro Anraku
发明人： Nobuhiko Hiraide , Masakatsu Ueda , Toshiro Anraku
IPC分类号： E21B17/00 , E21B17/042 , F16L58/18 , F16L9/14
CPC分类号： F16L58/18 , E21B17/00 , E21B17/003 , F16L58/182 , Y10S138/06
摘要： A low corrosion resistant pipe 1 is jointed with a high corrosion resistant pipe 2 directly or via a coupling 3. An insulating ceramic film having a thickness of 0.4 .mu.m and a resistivity of 10.sup.8 .OMEGA. cm or more is formed on the outer and inner surfaces of the pipes 1 and 2 at a length L of 60 mm or more from the end of the pipe and on the surface which forms a space when the pipes 1 and 2 are jointed at a coverage ratio of 90% or more to less than 100%.
摘要翻译： 低耐腐蚀管1直接或通过联轴器3与高耐腐蚀管2接合。在外表面和内表面上形成厚度为0.4μm，电阻率为10 8Ω/ cm以上的绝缘陶瓷膜 的管道1和2的长度L从管的端部延伸60mm或更大，并且当管道1和管道2以90％以上至小于100的覆盖率连接时形成空间的表面上 ％。
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7.发明申请公开(公告)号：US20060130548A1
公开(公告)日：2006-06-22
申请号：US11291869
申请日：2005-12-02
申请人： Sumio Iida , Toshiro Anraku , Masami Imamura , Hirofumi Hori
发明人： Sumio Iida , Toshiro Anraku , Masami Imamura , Hirofumi Hori
IPC分类号： B21B17/10
CPC分类号： B21B25/00
摘要： By employing a Cr-plated mandrel bar for producing hot seamless tubes according to the present invention wherein centerline average roughness Ra in axial and circumferential directions as well as maximum depth Rv in axial and circumferential directions is specified and further maximum height Rp in axial and circumferential is specified, surface defects such as seizure unlikely generate in an elongation-rolling process by a mandrel mill so that the service life can be dramatically extended, thereby the remarkable reduction of tool cost can be achieved. Moreover, it contributes greatly to improve the inner surface quality of hot seamless tubes to be rolled by a mandrel mill rolling process. Also, the manufacturing method by the present invention makes it possible to efficiently manufacture Cr-plated mandrel bar for producing hot seamless tubes.
摘要翻译： 通过采用根据本发明的用于制造热无缝管的镀铬芯棒，其中规定轴向和圆周方向上的中心线平均粗糙度Ra以及轴向和圆周方向上的最大深度Rv，并且进一步确定轴向和周向上的最大高度Rp 规定了在芯棒式无缝管轧机的伸长轧制过程中不可能发生表面缺陷，例如发泡，从而可以显着延长使用寿命，从而可以显着降低工具成本。 此外，它通过芯棒式无缝管轧机轧制工艺大大有助于提高热轧无缝管的内表面质量。 另外，本发明的制造方法能够有效地制造用于制造热无缝管的镀Cr芯棒。
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公开(公告)号：US06988387B2
公开(公告)日：2006-01-24
申请号：US11135409
申请日：2005-05-24
IPC分类号： B21B19/04
摘要： The present invention relates to a making method for a seamless metallic tube with a tilting roll type piercing rolling mill (piercer). According to the making method for a seamless metallic tube of the present invention, the rotary forging effect and the circumferential shearing strain can be significantly suppressed without generating uncompleted engagement of a billet. Accordingly, a product having reduced inside defects and excellent inside quality can be produced in high productivity. Further, by strengthening a plug nose rolling portion, a sharpened plug nose is obtained and an engagement limit can be increased. Additionally, a product further excellent in the inside quality can be efficiently produced. Accordingly, the present invention can be applied to wide fields of the piercing rolling of the seamless metallic tube.
摘要翻译： 本发明涉及一种具有倾斜辊式穿孔轧机（穿孔机）的无缝金属管的制造方法。 根据本发明的无缝金属管的制造方法，可以显着地抑制旋转锻造效应和周向剪切应变，而不产生坯料的未完全接合。 因此，能够高生产率地制造内部缺陷减少，内部质量优异的产品。 此外，通过加强塞子鼻部滚动部分，获得尖锐的塞子鼻部并且可以增加接合极限。 另外，可以有效地制造进一步优良的内部品质的产品。 因此，本发明可以应用于无缝金属管的穿孔轧制的广泛领域。
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公开(公告)号：US06210806B1
公开(公告)日：2001-04-03
申请号：US09253140
申请日：1999-02-19
申请人： Yasuyoshi Hidaka , Toshiro Anraku , Hisashi Amaya
发明人： Yasuyoshi Hidaka , Toshiro Anraku , Hisashi Amaya
IPC分类号： B32B900
摘要： The martensitic stainless steel product comprises a base steel and a dual oxide scale layer on a surface of the steel, wherein the dual scale layer includes an inner scale layer containing FeCr2O4 and Fe3O4 as main components and an outer scale layer containing Fe3O4 as a main component and having an outermost Fe2O3 layer; or includes an inner scale layer containing FeCr2O4 and FeO as main components and an outer scale layer containing FeO and Fe3O4 as main components and having an outermost Fe2O3 layer. If the product is a steel pipe, it exhibits excellent corrosion resistance when used for an oil country tubular goods or line pipe.
摘要翻译： 所述马氏体系不锈钢制品在钢表面上含有基础钢和双氧化皮层，其中，所述双层氧化层包括含有FeCr 2 O 4和Fe 3 O 4作为主要成分的内标层和含有Fe 3 O 4作为主要成分的外标层 并具有最外层的Fe 2 O 3层; 或包含含有FeCr 2 O 4和FeO作为主要成分的内层，以及含有FeO和Fe 3 O 4作为主要成分并具有最外层的Fe 2 O 3层的外层。 如果产品是钢管，则在用于油罐管或管线管时表现出优异的耐腐蚀性。
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10.发明授权公开(公告)号：US07165431B2
公开(公告)日：2007-01-23
申请号：US11291869
申请日：2005-12-02
申请人： Sumio Iida , Toshiro Anraku , Masami Imamura , Hirofumi Hori
发明人： Sumio Iida , Toshiro Anraku , Masami Imamura , Hirofumi Hori
CPC分类号： B21B25/00
摘要： By employing a Cr-plated mandrel bar for producing hot seamless tubes according to the present invention wherein centerline average roughness Ra in axial and circumferential directions as well as maximum depth Rv in axial and circumferential directions is specified and further maximum height Rp in axial and circumferential is specified, surface defects such as seizure unlikely generate in an elongation-rolling process by a mandrel mill so that the service life can be dramatically extended, thereby the remarkable reduction of tool cost can be achieved. Moreover, it contributes greatly to improve the inner surface quality of hot seamless tubes to be rolled by a mandrel mill rolling process. Also, the manufacturing method by the present invention makes it possible to efficiently manufacture Cr-plated mandrel bar for producing hot seamless tubes.
摘要翻译： 通过采用根据本发明的用于制造热无缝管的镀铬芯棒，其中规定轴向和圆周方向上的中心线平均粗糙度Ra以及轴向和圆周方向上的最大深度Rv，并且进一步确定轴向和周向上的最大高度Rp 规定了在芯棒式无缝管轧机的伸长轧制过程中不可能发生表面缺陷，例如发泡，从而可以显着延长使用寿命，从而可以显着降低工具成本。 此外，它通过芯棒式无缝管轧机轧制工艺大大有助于提高热轧无缝管的内表面质量。 另外，本发明的制造方法能够有效地制造用于制造热无缝管的镀Cr芯棒。
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