| Patents for B21B 17 - Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling (1,014) |
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| 02/27/2013 | CN101610855B Rolling stand |
| 02/21/2013 | DE102011110938A1 Verfahren und Vorrichtung zum Herstellen kalt gepilgerter Rohre Method and apparatus for producing cold gepilgerter tubes |
| 02/19/2013 | US8375761 Method for producing an internally or externally toothed cup-shaped sheet material component and corresponding device |
| 02/07/2013 | WO2013018564A1 Controlled rolling method of seamless steel tube excellent in strength and low-temperature toughness |
| 02/06/2013 | CN202715613U Machine for continuously molding special section pipe from aluminum pipe coil |
| 01/16/2013 | CN102873099A Special-shaped copper tube processing equipment and method for copper-aluminum composite row |
| 01/16/2013 | CN102873098A Manufacturing method for ultrathin-wall titanium tubing |
| 01/10/2013 | US20130008219 Mandrel conveying device for a tube rolling mill |
| 01/09/2013 | EP2542361A1 Hot work tool and method for producing same |
| 01/02/2013 | CN102847710A Pipe contracting machine |
| 01/02/2013 | CN102021931B Weldless special pipe hoop for well pipe and manufacturing method thereof |
| 12/05/2012 | CN102806230A Floating core rod rolling copper pipe process and equipment for two-roll reciprocating-type pipe mill |
| 11/21/2012 | CN202539184U Annular-hole-type roller device for dual-roller-type seamless steel pipe cold rolling mill |
| 11/21/2012 | CN101300088B Hollow bar manufacturing process |
| 11/20/2012 | US8312751 Method for producing high alloy pipe |
| 11/15/2012 | US20120285215 Device and method to shape worked pieces |
| 11/14/2012 | CN102781600A Hot work tool and method for producing same |
| 11/13/2012 | US8307688 Process for producing seamless stainless steel pipe |
| 10/17/2012 | CN102179681B Pipe mold manufacturing process adopting continuous-casting blank to forge and roll rough blank periodically |
| 10/04/2012 | WO2012133484A1 Method for manufacturing roll for reducing, and roll for reducing |
| 09/19/2012 | CN102671949A Head rolling machine |
| 09/13/2012 | WO2012120111A1 Process for rolling tubes in a continuous multi-stand rolling mill |
| 09/12/2012 | EP2496370A2 Method and device for the optimized circulation of rods in the production of a seamlessly hot-fabricated steel pipe according to the continuous pipe method |
| 09/12/2012 | CN102665947A Method and device for the optimized circulation of rods in the production of a seamlessly hot-fabricated steel pipe according to the continuous pipe method |
| 08/08/2012 | EP2484458A1 Retract mandrel mill and method for rolling tubing |
| 08/08/2012 | EP2484457A1 Multi-roll mandrel mill and method for manufacturing seamless pipe |
| 08/08/2012 | CN101767108B Method for periodical rolling of seamless steel tube |
| 07/25/2012 | CN102189106B Rolling mill with stands with three adjustable rolls |
| 07/18/2012 | CN101618399B Cold-rolling mill for pipes |
| 07/11/2012 | CN102553925A Double-roller continuous pipe rolling mill |
| 07/04/2012 | CN102548677A Retract mandrel mill and method for rolling tubing |
| 07/04/2012 | CN102548676A Multi-roll mandrel mill and method for manufacturing seamless pipe |
| 07/04/2012 | CN101410194B Cold finish seamless steel pipe for drive shaft and method for producing the same |
| 06/27/2012 | CN102513360A Seamless steel tube hot rolling manufacture process |
| 06/20/2012 | EP2465618A1 Apparatus for adjusting screw-down position of mill roll which constitutes three-roll type mandrel mill, and method for manufacturing seamless pipe |
| 06/20/2012 | EP2313212B1 Rolling mill stand and related rolling mill for longitudinally rolling rod-shaped bodies |
| 06/20/2012 | EP1918034B1 Device and method for detecting flaw on tube |
| 06/13/2012 | EP1779939B1 Rolling control method for mandrel mill, rolling control device and control program |
| 06/07/2012 | WO2012075095A2 Pipe element having shoulder, groove and bead and methods and apparatus for manufacture thereof |
| 06/07/2012 | US20120139236 Pipe Element Having Shoulder, Groove and Bead and Methods and Apparatus for Manufacture Thereof |
| 06/07/2012 | US20120137745 Tube rolling plant |
| 06/07/2012 | CA2818980A1 Pipe element having shoulder, groove and bead and methods and apparatus for manufacture thereof |
| 06/06/2012 | CN202263771U 用于限动芯棒式连轧管机的旋转芯棒装置 Rotating mandrel means for limiting movement of the mandrel MPM |
| 05/30/2012 | CN102481607A Apparatus for adjusting screw-down position of mill roll which constitutes three-roll type mandrel mill, and method for manufacturing seamless pipe |
| 05/24/2012 | DE102011012761A1 Method for producing tube blank, involves rolling heated full block, perforating heated full block to hollow block by inner tool with piercer, and deoxidizing hollow block inner surface during rolling and/or perforating |
| 05/23/2012 | CN101468360B Seamless oil well steel tube restraint tandem rolling processing equipment |
| 05/16/2012 | EP2028284B1 High-strength seamless steel pipe for mechanical structure which has excellent toughness and weldability, and method for manufacture thereof |
| 05/09/2012 | EP2450115A2 Milling system, roller framework and method for changing roller frameworks in a milling system |
| 05/03/2012 | US20120103048 Rolling mill, roll stand, as well as method for replacing roll stands in a rolling mill |
| 05/01/2012 | US8166789 Pipe or tube reducing mill and roll for reducing mill |
| 04/10/2012 | US8151612 Elongation rolling control method |
| 04/05/2012 | US20120079864 Pilger die and pilger mandrel for manufacturing dashpot tube for nuclear fuel assembly, method of manufacturing the pilger die and the pilger mandrel, and dashpot tube for nuclear fuel assembly |
| 03/29/2012 | DE102011114150A1 Rolling system for tube, comprises shaping device which is provided with rolling stand, where traction device is arranged in passage direction after shaping device |
| 03/28/2012 | CN202174107U 一种三辊连轧管机 A three-roll rolling tube machine |
| 03/28/2012 | CN102389900A High-precision processing method for Ti-3Al-2.5V (TA18) aviation titanium tube |
| 03/15/2012 | DE10144743B4 Walzgerüst zum Walzen von stab- oder rohrförmigem Gut Rolling mill for rolling rod-shaped or tubular Good |
| 02/22/2012 | CN202146900U 双机头冷轧管机 Dual head cold rolling mill |
| 02/16/2012 | US20120036911 Method for producing ultrathin-wall seamless metal tube by cold rolling method |
| 02/16/2012 | DE102010052084B3 Verfahren zur wirtschaftlichen Herstellung von nahtlos warmgewalzten Rohren in Rohrkontiwalzwerken A process for the economical production of seamless hot rolled tubes in Rohrkontiwalzwerken |
| 02/15/2012 | EP1795274B1 METHOD FOR HOT WORKING OF Cr-CONTAINING STEEL |
| 02/08/2012 | CN102348517A Hollow member, and manufacturing device and manufacturing method therefor |
| 02/08/2012 | CN101468359B 一种利于降低轧辊、芯棒消耗的五机架限动芯棒连轧机 A system that facilitates reducing roll mandrel consumed five racks retained mandrel mill |
| 02/01/2012 | CN202129267U 冷轧钢管装置 Cold-rolled steel pipe unit |
| 01/12/2012 | WO2012005287A1 Mandrel mill and method for manufacturing seamless pipe |
| 01/12/2012 | DE102010026574A1 Seamless thermoformed pipe manufacturing method, involves setting rolling diameter of roll baskets to wall thickness of tube by drive motor, where motor is controlled by programmable controller |
| 01/10/2012 | US8091399 Process for manufacturing a seamless tube |
| 01/04/2012 | CN101652197B Method for manufacturing cold-finished seamless steel pipe for integrally molded drive shaft |
| 12/29/2011 | DE102010049645A1 Method for hot-rolling of metallic elongated hollow body, involves applying lubricant on rolling bar arranged in hollow body before hot-rolling process, and bringing lubricant into solid form at rolling bar |
| 12/28/2011 | EP2399685A1 Hollow member, and manufacturing device and manufacturing method therefor |
| 12/28/2011 | EP1872878B1 Process for producing seamless tube |
| 12/28/2011 | CN102300663A 耐磨件元件及构造方法 Wear parts components and construction methods |
| 12/21/2011 | CN202079081U 一种轧制六方管材的冷轧管机工作机架 One kind of rolled hexagonal pipe rack cold rolling mill work |
| 12/21/2011 | CN102284484A 斜轧机的芯棒预旋转机构 Oblique mandrel mill pre-rotation mechanism |
| 12/21/2011 | CN101460264B 用于无缝管的保持有心轴的轧机 Determined to keep the mill for seamless tube axis |
| 12/20/2011 | US8079243 Plug, method of expanding inside diameter of metal pipe or tube using such plug, method of manufacturing metal pipe or tube, and metal pipe or tube |
| 12/15/2011 | WO2011154133A1 Method for producing seamless pipes |
| 12/15/2011 | CA2800351A1 Method for producing seamless pipes |
| 12/14/2011 | CN102274853A 热轧复合耐蚀双金属钢管制造工艺 Hot-rolled steel bimetallic corrosion resistant composite manufacturing processes |
| 12/01/2011 | WO2011148613A1 Fixed diameter rolling method for seamless pipe |
| 11/29/2011 | US8065901 Mandrel bar for high-alloy rolling, method for surface treating a mandrel bar, method for producing mandrel bar, and method for operating seamless pipe mill |
| 11/23/2011 | CN202045131U Two-roll mill for copper or copper alloy tube |
| 11/23/2011 | CN202045130U Copper and copper alloy tube stock double-roll rolling device |
| 11/10/2011 | US20110271731 Method for producing seamless metallic tube by cold rolling |
| 11/09/2011 | CN101568395B Mandrel mill of seamless pipe and process for manufacturing seamless pipe |
| 11/02/2011 | CN101730597B Mandrel mill and process for manufacturing seamless pipe |
| 11/01/2011 | US8047039 Process for producing stainless steel pipe |
| 10/26/2011 | EP2379269A1 Wear piece element and method of construction |
| 10/12/2011 | CN101711190B Seamless pipe manufacturing method |
| 10/06/2011 | US20110239720 Production Method of Seamless Pipe or Tube, and Oxidizing Gas Supply Unit |
| 09/28/2011 | CN101160184B Manufacturing method of seamless steel pipe |
| 09/22/2011 | WO2011083101A3 Hot rolling of metal tubes without welded joints on a continuous mill with a fixed mandrel |
| 09/21/2011 | EP2366468A1 Rolling control method, rolling control apparatus and control program for a mandrel mill, and a method of manufacturing a seamless tube or pipe |
| 09/21/2011 | EP2366467A1 Rolling control method, rolling control apparatus and control program for a mandrel mill, and a method of manufacturing a seamless tube or pipe |
| 09/21/2011 | EP2366466A1 Rolling control method, rolling control apparatus and control program for a mandrel mill, and a method of manufacturing a seamless tube or pipe |
| 09/21/2011 | CN201978963U 一种黄铜合金冷凝管水平连铸-轧制-退火-拉伸设备 Brass alloy condenser horizontal continuous casting - rolling - annealing - stretching device |
| 09/21/2011 | CN102189106A Rolling mill with stands with three adjustable rolls |
| 09/21/2011 | CN102189105A Pearson's hot rolling machine or machine set and operation method thereof |
| 09/15/2011 | US20110219839 Tubular member having multiple sized splines |
| 09/14/2011 | CN102179681A Pipe mold manufacturing process adopting continuous-casting blank to forge and roll rough blank periodically |
| 09/09/2011 | WO2011107214A1 Hot work tool and method for producing same |