| Patents for B21B 21 - Pilgrim-step tube-rolling (473) |
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| 03/05/2015 | WO2015028317A1 Cold pilger rolling mill and method for forming a tube shell to a tube |
| 02/26/2015 | DE102013109218A1 Kaltpilgerwalzanlage und Verfahren zum Umformen einer Luppe zu einem Rohr Cold Pilger system and method for forming a billet into a tube |
| 02/18/2015 | EP2837435A1 Cold rolling method for seamless pipe |
| 01/20/2015 | US8935946 Variable diameter nozzle, joint and rod forming using cam rollers |
| 12/24/2014 | CN104245169A 无缝管的冷轧方法 Cold rolling method of a seamless pipe |
| 09/25/2014 | WO2014146935A1 Method for producing a steel tube including cleaning of the outer tube wall |
| 07/22/2014 | US8783082 Rotary stamper |
| 07/02/2014 | EP2749363A1 Drive for a pilger rolling mill |
| 06/26/2014 | WO2014095746A1 Pilger rolling mill with a crank drive |
| 06/18/2014 | DE102012112398A1 Pilgerwalzanlage mit einem Kurbeltrieb Pilgrim rolling mill with a crank mechanism |
| 06/04/2014 | CN103831298A Continuous rolling and continuous annealing machining technique of flexible environment-friendly fireproof cable |
| 05/13/2014 | US8720026 Window component scrap reduction |
| 04/30/2014 | CN103765152A Seamless pipe, level wound coil, cross fin tube-type heat exchanger, and method for producing cross fin tube-type heat exchanger |
| 04/02/2014 | CN102371276B Planet gear and double sliding block transmission device of high-speed and energy-saving pipe cold rolling mill |
| 03/25/2014 | US8677628 Scrubbing razor with safety ribs |
| 03/20/2014 | WO2014041127A1 Pilger rolling train |
| 03/20/2014 | DE102012108643A1 Pilgerwalzstraße Pilger road |
| 03/05/2014 | EP2703097A1 Process for manufacturing seamless steel pipe |
| 01/29/2014 | CN103537510A Processing method of copper tube for high-precision magnetically-controlled anode cylinder |
| 11/20/2013 | CN103394511A Steel pipe rolling method without generation of Pilger bell ends |
| 11/13/2013 | CN101791630B Drive system for a milling system, in particular a cold pilger milling system |
| 10/17/2013 | WO2013153794A1 Cold rolling method for seamless pipe |
| 10/03/2013 | US20130255342 Method for producing seamless tube/pipe |
| 08/15/2013 | US20130206274 Process for producing large diameter, high strength, corrosion-resistant welded pipe and pipe made thereby |
| 07/16/2013 | CA2743165C Method for producing seamless metallic tube by cold rolling |
| 05/29/2013 | CN101745537B Method for producing seamless steel tube with heat preservation cover of pilger mill |
| 05/22/2013 | CN202943076U Endless rolling sleeve for Pilger mill |
| 05/08/2013 | CN102282273B Process for production of duplex stainless steel pipe |
| 05/08/2013 | CN101722189B Large-scale cold rolling seamless steel mill and rolling method thereof |
| 05/01/2013 | CN101733279B Cold-rolling mill |
| 04/23/2013 | US8424210 Multi-blade fan razor |
| 04/03/2013 | CN101733277B Rolling mill of cold-rolling mill for pipes rolling |
| 03/27/2013 | CN102257167B Method for producing high alloy steel pipe |
| 03/27/2013 | CN101862763B Production process of large-caliber thin-walled seamless stainless steel pipe |
| 03/13/2013 | CN102962293A Manufacturing method for pipe die by using steel ingot great-reducing-forming blank |
| 03/13/2013 | CN102962291A Method for forging and forming pipe die blank by pilgrim mill |
| 02/21/2013 | DE102011110939A1 Verfahren und Vorrichtung zum Herstellen kalt gepilgerter Rohre Method and apparatus for producing cold gepilgerter tubes |
| 02/21/2013 | DE102011052739A1 Pilgrim type rolling mill for rolling tube, has balancer shaft that is rotatably mounted about rotational axis such that mass distribution of balancer shaft is not rotationally symmetric with respect to its axis of rotation |
| 02/20/2013 | EP2559498A2 Method and device for producing a cold pilgered pipe |
| 02/20/2013 | EP2559497A2 Method and device for producing a cold pilgered pipe |
| 02/17/2013 | CA2783441A1 Method and apparatus for making cold-pilger-rolled tubes |
| 02/17/2013 | CA2783298A1 Method and apparatus for making cold-pilger-rolled tubes |
| 02/07/2013 | WO2013018821A1 Seamless pipe, level wound coil, cross fin tube-type heat exchanger, and method for producing cross fin tube-type heat exchanger |
| 01/31/2013 | DE102011108791A1 Hollow metal block used in rolling mill for manufacture of tube blank, has main portion formed in longitudinal extent of block, such that outer diameter of block in end portion is smaller than outer diameter of block in main portion |
| 01/30/2013 | CN102284488B Symmetric hole-shaped curve cycle roll |
| 01/23/2013 | CN101687232B Method for producing ultra thin wall metallic tube by cold rolling method |
| 11/01/2012 | US20120272706 Winding Device, Roller System Having a Winding Device and Related Method |
| 10/03/2012 | EP2504113A1 Drive for a pilger roller system |
| 09/19/2012 | CN202438544U Feeding trolley chuck device for end charging cold reducing mill |
| 09/13/2012 | WO2012120526A1 A cold rolling system |
| 08/22/2012 | EP2489445A1 Device with a number of cold rolling assemblies |
| 08/22/2012 | EP2488313A1 Winding device, roller system having a winding device and related method |
| 07/18/2012 | CN101733278B Cold pipe mill |
| 06/06/2012 | CN101733280B Cold-rolling pipe mill |
| 05/30/2012 | CN202238889U Periodical roll |
| 05/30/2012 | CN101234399B Cold pilger mill crankshaft-dual eccentric center quality level balance method |
| 04/04/2012 | CN101626848B Seamless steel pipe, hollow spring utilizing seamless steel pipe, and process for manufacturing the same |
| 03/21/2012 | EP2429731A1 Chuck for a cold-pilgering mill |
| 03/21/2012 | EP2429730A1 Feed drive for a cold-pilgering mill |
| 03/21/2012 | CN202169279U 对称孔形曲线周期轧辊 Symmetrical hole shaped curve cycle rolls |
| 03/14/2012 | CN102371276A Planet gear and double sliding block transmission device of high-speed and energy-saving pipe cold rolling mill |
| 02/29/2012 | CN102365136A Method of manufacturing ultra-thin-walled seamless metal tube by cold rolling method |
| 02/08/2012 | EP2415535A1 Method of manufacturing ultra-thin-walled seamless metal tube by cold rolling method |
| 01/18/2012 | CN101733281B Mill for cold rolling of pipes |
| 12/21/2011 | CN102284488A 对称孔形曲线周期轧辊 Symmetrical hole shaped curve cycle rolls |
| 12/21/2011 | CN101700529B 冷轧管机 Cold rolling mill |
| 12/14/2011 | CN102282273A 双相不锈钢钢管的制造方法 Duplex stainless steel pipe manufacturing method |
| 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 |
| 11/30/2011 | EP2390016A1 Process for production of seamless metal pipe by cold rolling |
| 11/23/2011 | EP2388341A1 Process for production of duplex stainless steel pipe |
| 11/23/2011 | CN102257167A Method for producing high alloy steel pipe |
| 11/17/2011 | DE102010020976A1 Method for pilgriming hollow ingot on arbor in pilgrim roll, involves pre-deforming hollow ingot by radial force acting on partial periphery and pressing hollow ingot into arbor, where stop is provided at rear end of hollow ingot |
| 11/16/2011 | CN102245320A Process for production of seamless metal pipe by cold rolling |
| 11/09/2011 | CN102239525A Cladding tube for nuclear fuel rod, method and apparatus for manufacturing a cladding tube |
| 10/26/2011 | EP2380998A1 Method for producing high alloy steel pipe |
| 10/18/2011 | US8037608 Razor with clamp force housing for battery |
| 09/21/2011 | EP1884296B1 Method of manufacturing ultrathin wall metallic tube by cold working method |
| 08/31/2011 | CN101579703B New technique for manufacturing high alloy steel seamless pipe with heavy calibre by adopting pilger mill |
| 08/24/2011 | EP2359946A2 Hot rolling pilger mill train or hot rolling pilger mill respectively and method for operating a hot rolling pilger mill |
| 08/04/2011 | DE102010025028A1 Warmpilgerwalzwerkstraße bzw. Warmpilgerwalzwerk sowie Verfahren zum Betrieb eines Warmpilgerwalzwerkes Hot rocker mill street or hot rocker mill and method of operating a hot rocker mill |
| 06/15/2011 | CN201862620U Roller block of cold Pilger mill |
| 06/08/2011 | EP2329499A1 Cladding tube for nuclear fuel rod, method and apparatus for manufacturing a cladding tube |
| 06/07/2011 | CA2646020C Method for producing ultra thin wall metallic tube by cold rolling method |
| 06/03/2011 | WO2011064113A1 Drive for a pilger roller system |
| 05/25/2011 | CN102069104A Method for producing seamless steel tube for big-caliber long tube air bottle in hot rolling mode |
| 04/21/2011 | WO2011045165A1 Winding device, roller system having a winding device and related method |
| 03/16/2011 | CN101698194B Method for centering capillary mandril based on Pilger intermittent seamless tube-rolling process |
| 03/02/2011 | CN201752714U Feeding and rotating mechanism of cold pilger mill |
| 12/22/2010 | CN201676894U Cooperating mechanism between rolling main motion of cold tube mill and driving tube blank feed-in rotary motion of servo motor |
| 11/18/2010 | WO2010130614A1 Chuck for a cold-pilgering mill |
| 11/18/2010 | WO2010130613A1 Feed drive for a cold-pilgering mill |
| 10/20/2010 | CN101862763A Production process of large-caliber thin-walled seamless stainless steel pipe |
| 10/07/2010 | WO2010113695A1 Method of manufacturing ultra-thin-walled seamless metal tube by cold rolling method |
| 09/30/2010 | DE102009007465B3 Antriebssystem für ein Walzwerk, insbesondere für ein Kaltpilgerwalzwerk A drive system for a rolling mill, particularly for a cold pilger rolling mill |
| 08/18/2010 | EP2219191A1 Cladding tube for nuclear fuel rod, method and apparatus for manufacturing a cladding tube |
| 08/11/2010 | EP2216107A1 Drive system for a milling system, in particular a cold pilger milling system |
| 08/11/2010 | CN201543648U Energy storage large flywheel device |
| 08/05/2010 | US20100192656 Drive for a cold pilger mill |
| 08/04/2010 | CN101791630A Drive system for a milling system, in particular a cold pilger milling system |
| 07/28/2010 | CN201534166U 数控车床内孔刀刀座 CNC lathe bore knife holder |