公开(公告)号：US20180023163A1

公开(公告)日：2018-01-25

申请号：US15520159

申请日：2015-10-19

申请人： JFE STEEL CORPORATION

发明人： Masatoshi Aratani ,  Yoshikazu Kawabata ,  Kenichi Iwazaki ,  Ryoji Matsui

IPC分类号： C21D9/50 ,  B21C37/08 ,  B21B23/00 ,  B23K26/282 ,  C21D9/08 ,  C22C38/42 ,  C22C38/50 ,  C22C38/46 ,  C22C38/28 ,  C22C38/24 ,  C22C38/26 ,  C22C38/20 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  F16L9/17

CPC分类号： C21D9/50 ,  B21B23/00 ,  B21C37/08 ,  B21C37/30 ,  B23K26/262 ,  B23K26/282 ,  B23K26/32 ,  B23K26/60 ,  B23K31/027 ,  B23K2101/06 ,  B23K2101/16 ,  B23K2103/04 ,  B60R21/26 ,  B60R21/261 ,  B60R2021/2612 ,  C21D8/105 ,  C21D9/08 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/20 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/38 ,  C22C38/42 ,  C22C38/46 ,  C22C38/50 ,  F16L9/17

摘要： Disclosed is a high-strength welded steel pipe for airbag inflators that has high toughness and workability. A base material portion of the steel pipe has a composition containing, in mass %, C: 0.02 to 0.08%, Si: 0.001 to 1.0%, Mn: 0.1 to 2.0%, P: 0.1% or less, Al: 0.01 to 0.1%, N: 0.01% or less, Ti: 0.01 to 0.20%, and V: 0.01 to 0.50%, with the balance being Fe and incidental impurities. The base material portion has a structure that includes a ferrite phase having an average grain size of 10 μm or less at an area fraction of 90% or more and a Ti, V-based carbide having an average grain size of 10 nm or less and dispersed in the ferrite phase. The welded steel pipe has a high tensile strength TS of 780 MPa or more and a strength-elongation balance TS×El of 15,000 MPa % or more. The difference ΔHV in Vickers hardness between the base material portion and the welded portion is 60 points or less. In a softened portion having Vickers hardness different from the Vickers hardness of the base material portion by at least 30 points, a softened width Ws in a circumferential direction is 0.05 mm or less.

公开(公告)号：US09731336B2

公开(公告)日：2017-08-15

申请号：US13698130

申请日：2011-06-08

申请人： Raimo Peltoniemi ,  Daniel Peltoniemi

发明人： Raimo Peltoniemi ,  Daniel Peltoniemi

IPC分类号： B21B19/04 ,  B21B15/00 ,  B21B23/00 ,  B21B25/00

CPC分类号： B21B15/00 ,  B21B19/04 ,  B21B23/00 ,  B21B25/00

摘要： The invention relates to a method for producing seamless pipes of heated massive metal blocks, by means of a mandrel (4), which is fastened on a rolling rod (5), in the case of which a coating material is applied onto the inner side of the hollow block (3) during the forming process by means of the influence of the rolling rod (5) from the massive metal block to a hollow block (3), which is created during the forming.

公开(公告)号：US09687894B2

公开(公告)日：2017-06-27

申请号：US14900794

申请日：2014-06-27

申请人： Danieli & C. Officine Meccaniche S.P.A.

发明人： Alfredo Poloni ,  Giuseppe Bordignon

IPC分类号： B08B9/04 ,  B21B45/08 ,  B21C43/00 ,  B08B9/032 ,  B21B23/00 ,  B21B39/00 ,  B21B45/04

CPC分类号： B21B45/08 ,  B08B9/0321 ,  B21B23/00 ,  B21B39/00 ,  B21B45/04 ,  B21C43/00

摘要： The descaling device (100) of the interior of a tube (1) comprises a supporting structure (9), a conveyor (2) for conveying the tube (1) with an inclinable stretch to arrange the tube in an inclined position by an angle with respect to the horizontal plane, a lance (3) with nozzles (4) to spray a fluid inside the tube (1) to carry out the operation of descaling the inner surface. The lance (3) is fixed to guides (7) above the conveyor (2) in an inclined position with respect to the horizontal plane, and may axially slide within the tube (1) during the descaling operation by spraying water into the tube.

公开(公告)号：US09333543B2

公开(公告)日：2016-05-10

申请号：US14228283

申请日：2014-03-28

申请人： Victaulic Company

发明人： Douglas R. Dole ,  Charles E. Wilk, Jr. ,  Scott D. Madara ,  Anthony J. Cuvo

IPC分类号： F16L23/00 ,  B21B23/00 ,  B21D41/00 ,  F16L17/025 ,  F16L21/02 ,  F16L25/12 ,  F16L17/04 ,  B21D17/04 ,  B21D39/04 ,  B21D41/02 ,  B21D15/06 ,  B21D22/16 ,  F16L21/06 ,  F16L23/08

CPC分类号： F16L21/06 ,  B21B23/00 ,  B21D15/06 ,  B21D17/04 ,  B21D22/16 ,  B21D39/046 ,  B21D41/00 ,  B21D41/023 ,  F16L17/025 ,  F16L17/04 ,  F16L21/022 ,  F16L23/08 ,  F16L25/12

摘要： A pipe element has a circumferential shoulder at one end. The shoulder has an outer diameter greater than the outer diameter of the pipe element. A groove is positioned adjacent to the shoulder. The groove has a floor surface with an outer diameter less than the outer diameter of the pipe element. A bead is positioned contiguous with the groove. The bead has an apex with an outer diameter greater than the outer diameter of the pipe element. A combination of roller tools is used to cold work pipe elements and impart a desired shape to the sidewall in one method of manufacture. In another method, a spin forming tool is revolved in an orbit of increasing diameter within the pipe element captured within a die.

摘要翻译： 管件在一端具有周向肩部。 肩部的外径大于管元件的外径。 凹槽位于肩部附近。 槽具有外径小于管元件的外径的地板表面。 珠子与凹槽相邻定位。 胎圈具有外径大于管元件的外径的顶点。 滚子工具的组合被用于冷加工管件，并且在一种制造方法中使侧壁具有所需的形状。 在另一种方法中，旋转成形工具在捕获在模具内的管道元件内的直径增加的轨道中旋转。

公开(公告)号：US09221087B2

公开(公告)日：2015-12-29

申请号：US14353038

申请日：2012-10-24

申请人： NIPPON STEEL & SUMITOMO METAL CORPORATION

发明人： Kouji Yamane ,  Tomio Yamakawa ,  Kazuhiro Shimoda

IPC分类号： B21B19/04 ,  B21B23/00 ,  B21B19/06

CPC分类号： B21B19/04 ,  B21B19/06 ,  B21B23/00

摘要： A method of producing a seamless metal pipe, which can suppress the occurrence of inner surface flaws, is provided. A method of producing a seamless metal pipe according to an embodiment of the present invention includes the steps of: heating a high alloy billet BL containing, by mass %, Cr: 20 to 30% and Ni: more than 22% and not more than 60% in a heating furnace F1 (S2); piercing-rolling the high alloy billet BL heated in the heating furnace F1 with a piercing machine P1 to produce a hollow shell (S3); cooling the hollow shell and then reheating the hollow shell in the heating furnace F1 (S4); and elongation-rolling the heated hollow shell with the piercing machine P1 (S5).

摘要翻译： 提供一种能够抑制内表面缺陷的产生的无缝金属管的制造方法。 根据本发明的实施方式的无缝金属管的制造方法包括以下步骤：将以质量％计含有Cr：20〜30％，Ni：超过22％且不大于 60％在加热炉F1（S2）; 用穿孔机P1对在加热炉F1中加热的高合金坯料BL进行穿孔轧制，制成中空壳体（S3）。 冷却中空壳，然后再加热加热炉F1中的中空壳（S4）; 并用穿孔机P1对加热的中空壳进行伸长轧制（S5）。

公开(公告)号：US20150314348A1

公开(公告)日：2015-11-05

申请号：US14696860

申请日：2015-04-27

申请人： CTE SISTEMI S.r.I.

发明人： Marco Dani

IPC分类号： B21B37/46 ,  B21B38/06 ,  B21B23/00 ,  B21B35/10 ,  B21B1/22 ,  B21B1/16

CPC分类号： B21B37/46 ,  B21B1/16 ,  B21B1/22 ,  B21B23/00 ,  B21B35/10 ,  B21B38/06 ,  B21C51/00 ,  B21D3/02 ,  B21D5/14

摘要： The apparatus includes a plurality of machines (10, 12, 14) arranged in line along a longitudinal direction (x) coinciding with a feed direction of the blank (C). Each machine (10, 12, 14) is provided with rollers (18, 20, 22) arranged to be driven into rotation by respective motors to work simultaneously on the blank (C) and with a control unit arranged to control these motors. Each machine (10, 12, 14) is provided with a measuring device (24) adapted to provide the control unit of that machine with a measure of the overall reaction exerted by the blank (C) under working on the rollers (18, 20, 22) of that machine along the longitudinal direction (x). The control unit of each machine (10, 12, 14) is arranged to torque-control the rollers (18, 20, 22) of that machine in such a manner that the overall reaction exerted by the blank (C) under working on the rollers (18, 20, 22) of that machine along the longitudinal direction (x) is equal to a predetermined value, zero included.

摘要翻译： 该装置包括沿着与坯料（C）的进给方向一致的纵向方向（x）排成一行的多个机器（10,12,14）。 每个机器（10,12,14）设置有辊（18,20,22），辊子被布置成被相应的电动机驱动旋转以同时在坯料（C）上工作，并且控制单元布置成控制这些电动机。 每个机器（10,12,14）设置有测量装置（24），该测量装置适于为该机器的控制单元提供由在坯料（C）上工作的辊（18,20）上施加的整体反应的量度 ，22）沿纵向（x）。 每个机器（10,12,14）的控制单元被布置成以这样的方式对该机器的辊（18,20,22）进行扭矩控制，使得由坯料（C）施加的整体反应在 该机器的纵向（x）的辊子（18,20,22）等于预定值，包括零。

公开(公告)号：US20150251268A1

公开(公告)日：2015-09-10

申请号：US14430771

申请日：2013-09-20

申请人： JFE STEEL CORPORATION

发明人： Shunsuke Toyoda ,  Sota Goto ,  Takatoshi Okabe ,  Atsushi Yonemoto

IPC分类号： B23K11/00 ,  B21B23/00 ,  B21C37/08 ,  C22C38/38 ,  C22C38/34 ,  C22C38/32 ,  C22C38/28 ,  C22C38/20 ,  C22C38/16 ,  C22C38/14 ,  C22C38/12 ,  C22C38/08 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C21D9/08 ,  C21D1/60 ,  C21D1/613 ,  C21D6/00 ,  F16L9/02 ,  B23K11/087

CPC分类号： B23K11/0006 ,  B21B23/00 ,  B21C37/08 ,  B23K11/0873 ,  B23K13/025 ,  B23K35/3053 ,  B23K35/3073 ,  B23K2101/06 ,  B23K2103/04 ,  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： 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.

摘要翻译： 具有不低于434MPa的拉伸性能TS的电阻焊钢管或钢管，其具有优异的耐HIC性和优异的低温韧性的电阻焊接部件，以及用于制造这种钢管或钢管的方法。

公开(公告)号：US20150191670A1

公开(公告)日：2015-07-09

申请号：US14412783

申请日：2013-08-13

申请人： NIPPON STEEL & SUMITOMO METAL CORPORATION

发明人： Sumio Iida ,  Masami Imamura ,  Takayuki Fukushima

IPC分类号： C10M125/26 ,  B21B17/02 ,  B21B45/02 ,  C10M125/18

CPC分类号： C10M125/26 ,  B21B17/02 ,  B21B19/04 ,  B21B23/00 ,  B21B25/04 ,  B21B45/0242 ,  C10M103/06 ,  C10M125/18 ,  C10M169/04 ,  C10M2201/081 ,  C10M2201/0873 ,  C10N2240/403 ,  C10N2250/08 ,  C10N2210/01 ,  C10N2210/02

摘要： A powder lubricant composition according to the present invention includes 65 parts by mass to 95 parts by mass of sodium borate, and 5 parts by mass to 35 parts by mass of cryolite. A method for manufacturing a seamless steel pipe according to the present invention includes adhering the above-described powder lubricant composition to a pipe inner surface of a work piece which is piercing rolled to have a tubular shape, and elongation rolling on the work piece after the adhering of the powder lubricant composition.

摘要翻译： 根据本发明的粉末润滑剂组合物包含65质量份至95质量份的硼酸钠和5质量份至35质量份的冰晶石。 根据本发明的无缝钢管的制造方法包括将上述粉末润滑剂组合物粘接到穿孔轧制成为筒状的工件的管内表面，以及在工件之后的伸长率轧制 粘附粉末润滑剂组合物。

公开(公告)号：US20150101381A1

公开(公告)日：2015-04-16

申请号：US14391808

申请日：2013-04-05

申请人： NIPPON STEEL & SUMITOMO METAL CORPORATION

发明人： Osamu Miyahara

IPC分类号： B21B21/00 ,  B21B23/00

CPC分类号： B21B21/00 ,  B21B23/00 ,  B21B2261/04 ,  B21B2263/20

摘要： In performing cold rolling on a seamless pipe as a mother pipe, it is possible to inhibit the generation of metal chips from the end portions of the mother pipe, and to prevent the formation of indentations therein that may be caused by the metal chips to thereby provide good surface appearance. This is made possible by using a mother pipe (1) having end portions at the cold rolling starting side and finishing side that have been R-chamfered, at each outer edge and at each inner edge, such that (T0−T1)/2≦R≦T0/2 is satisfied, where R is a radius (mm) of the R-chamfer on the outer edges and the inner edges of the end portions, T0 is a wall thickness of the mother pipe, and T1 is a wall thickness of the pipe after cold rolling.

摘要翻译： 在作为母管的无缝管中进行冷轧时，可以抑制从母管的端部产生金属屑，并且防止由金属屑引起的凹陷的形成 提供良好的表面外观。 这可以通过在每个外边缘和每个内边缘处使用在冷轧起始侧和已经R倒角的端部的母管（1）使得（T0-T1）/ 2＆nlE ; R＆nlE; T0 / 2，其中R是外边缘上的R倒角和端部的内边缘的半径（mm），T0是母管的壁厚，T1是壁 冷轧后管材厚度。

公开(公告)号：US08935946B1

公开(公告)日：2015-01-20

申请号：US13227020

申请日：2011-09-07

申请人： Davor Petricio Yaksic

发明人： Davor Petricio Yaksic

IPC分类号： B21B21/00 ,  B21C37/16 ,  B21B23/00

CPC分类号： B21C37/16 ,  B21B23/00 ,  B21C37/18 ,  B21D41/04

摘要： A radial dimension of a pipe is changed by applying contiguous pipe contacting surfaces of adjacent cam rollers. Pipe contacting surfaces uniformly vary in width of curvatures as distances change between a center of rotation of the cam rollers and the pipe contacting surfaces side walls of the cam rollers are shaped and adjacent. Bevel gear teeth on sloped side walls force all rollers to turn uniformly. Cylinders on a frame surrounding the pipe drive pistons, lever arms and cam rollers that move the pipe wall. Radial forces on the cam rollers hold sloped side walls adjacent, bevel gears engaged and pipe contacting surfaces contiguous. Smoothly deforming a pipe wall inward forms a nozzle sat an end, a restrictor, a pipe closure, a solid rod or a pipe joint. In a joint, outer and inner pipe walls are moved inward respectively beyond and within elastic limits, ensuring tightness.

摘要翻译： 通过施加邻近的凸轮辊的相邻管接触表面来改变管的径向尺寸。 当凸轮滚子的旋转中心与凸轮滚子的接触表面侧壁之间的距离变化时，管接触表面的曲率宽度均匀地变化。 倾斜侧壁上的锥齿轮齿可以使所有的滚轮均匀地转动。 围绕管道的框架上的气缸驱动活塞，杠杆臂和凸轮辊，其移动管壁。 凸轮滚子上的径向力保持倾斜的侧壁相邻，锥齿轮接合和管接触表面相邻。 向内形成管壁的平滑变形形成一个端部的喷嘴，限流器，管道封闭件，实心杆或管接头。 在接头中，外管壁和内管壁分别向内分别移动超过弹性极限，确保紧密度。