| 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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| 09/09/2011 | CA2793074A1 Method for producing a hot work tool |
| 09/07/2011 | CN102172624A Seamless steel pipe three-roller longitudinal tandem rolling unit |
| 09/01/2011 | DE102010009593A1 Roll stand has two rollers with axes around which rollers rotate and guide roller for guiding rolling stock, where guide roller has guide section for partial contact with rolling stock |
| 08/24/2011 | EP1854561B1 Process for producing seamless pipe |
| 08/24/2011 | CN201940416U 直缝方管轧机的模具装置 Straight seam square tube mill die device |
| 08/09/2011 | US7992417 Method for producing ultra thin wall metallic tube by cold rolling method |
| 08/03/2011 | EP1731234B1 Tube manufacturing method for fixed diameter rolling |
| 07/27/2011 | CN101448585B Method for production of seamless pipe, and oxidizing gas supply apparatus |
| 06/23/2011 | WO2011050783A3 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 |
| 06/22/2011 | CN101163559B Manufacturing method of seamless pipe and cleaning equipment |
| 06/15/2011 | CN201862617U Special high-speed rolling mill of high-strength titanium alloy sectional material warm rolling |
| 06/15/2011 | CN101209458B Method for rolling tube by hot-rolled seamless tube restraint core rod continuous rolling mill |
| 06/08/2011 | CN101277772B Device and method for detecting flaw of tube stock |
| 05/11/2011 | CN102049414A High-strength titanium and titanium alloy profile temperature rolling process and dedicated high-speed roll mill |
| 05/11/2011 | CN101232956B Rolling mill with stands with three adjustable rolls |
| 05/05/2011 | WO2011050783A2 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 |
| 05/05/2011 | DE102010047868A1 Hollow block manufacturing method, involves driving solid block in transportation zone in axial direction on mandrel, and rolling material such that material is expanded in circumferential direction and/or in axial direction |
| 05/05/2011 | CA2779803A1 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 |
| 04/27/2011 | EP2313212A1 Rolling mill stand and related rolling mill for longitudinally rolling rod-shaped bodies |
| 04/27/2011 | CN102036762A Rolling mill stand and related rolling mill for longitudinally rolling rod-shaped bodies |
| 04/20/2011 | CN102021931A Weldless special pipe hoop for well pipe and manufacturing method thereof |
| 04/14/2011 | DE102009045640A1 Aufwickelvorrichtung Winder |
| 04/07/2011 | WO2011039943A1 Retract mandrel mill and method for rolling tubing |
| 04/07/2011 | WO2011039942A1 Multi-roll mandrel mill and method for manufacturing seamless pipe |
| 04/07/2011 | WO2011039941A1 Mandrel mill and method for manufacturing seamless pipe |
| 04/06/2011 | CN101426594B Process for producing stainless-steel pipe |
| 03/23/2011 | CN101264483B Rolling control method for mandrel mill, rolling control device |
| 03/01/2011 | US7895870 Method for producing ultra thin wall metallic tube with cold working process |
| 02/17/2011 | WO2011018956A1 Apparatus for adjusting screw-down position of mill roll which constitutes three-roll type mandrel mill, and method for manufacturing seamless pipe |
| 02/16/2011 | CN101486044B Method for producing restraint core rod of diameter above 330mm for tandem rolling tube |
| 01/27/2011 | DE102008039454B4 Verfahren zur Herstellung eines nahtlosen Stahlrohres und Walzwerk zur Durchführung des Verfahrens A method for producing a seamless steel pipe and rolling mill for carrying out the method |
| 01/26/2011 | EP1676651B1 Method and device for adjusting screw-down location of rolling roll forming three-roll mandrel mill |
| 01/26/2011 | CN101444792B Method for producing seamless steel pipes used for large-diameter high-pressure gas cylinders |
| 01/12/2011 | CN1980751B Rolling control method for mandrel mill, rolling control device, and seamless tube |
| 12/29/2010 | EP1889669B1 Drawing rolling method by mandrel mill |
| 12/22/2010 | CN201676879U Fluid power asynchronous selectively mounting device |
| 12/22/2010 | CN201676878U Ring roll cylindrical mandrel precision cold rolling pipe mill |
| 12/08/2010 | EP1679137B1 Method of measuring misalignment of multi-stage rolling mill and measuring device therefor |
| 12/01/2010 | CN101900112A Rolling method of equal-wall-thickness multiple-threaded screw pump stator |
| 11/17/2010 | EP1733817B1 Method and device for controlling fixed diameter rolling of tube |
| 11/17/2010 | CN201632476U Roller stand of two-roller reducing sizing mill |
| 11/10/2010 | EP1607148B1 Method of manufacturing seamless tube |
| 10/27/2010 | CN101214512B Technique for processing copper pipe for high-precision magnetic controlled anode barrel |
| 10/07/2010 | DE102010010697A1 Rolling mill for manufacturing elongated product e.g. pipe, has bearing housings arranged on guide bolts in frame, where one of bolts has adjusting device for adjusting correction roller angle in plane perpendicular to roller center line |
| 10/06/2010 | CN101855032A Roll forming device |
| 09/09/2010 | DE102009010414A1 Walzgerüst, Walzstraße und Verwendung des Walzgerüsts und/oder der Walzstraße zum Reduzieren von Stäben und/oder Rohren Rolling mill, rolling mill, and use of the roll stand and / or of the rolling mill for reducing of rods and / or tubes |
| 09/08/2010 | CN101823075A Rolling method for sharpening head and tail wall thickness of seamless steel tube |
| 09/07/2010 | US7788957 Apparatus for pipe end sizing and method for pipe end sizing |
| 09/02/2010 | WO2010097232A1 Roll stand, rolling train, and use of said roll stand and/or said rolling train for reducing rods and/or tubes |
| 09/01/2010 | CN101400455B Mandrel bar for rolling of high alloy, method for surface treatment of the mandrel bar, method for manufacture of the mandrel bar, and method for operation of seamless steel pipe production apparatus |
| 08/25/2010 | CN201558845U Cold rolling die suitable for special tube of double-roll cold rolled tube machine |
| 08/11/2010 | CN201543647U Micro metal pipe shaping device before welding |
| 08/11/2010 | CN101151107B Drawing rolling method for mandrel mill |
| 08/04/2010 | CN101298084B Technique for processing D type copper pipe with unequal-radius wall thickness or equal-radius wall thickness |
| 07/28/2010 | CN101376204B Novel technique for producing seamless steel pipe |
| 07/22/2010 | WO2010082584A1 Hollow member, and manufacturing device and manufacturing method therefor |
| 07/22/2010 | CA2749686A1 Hollow member and an apparatus and method for its manufacture |
| 07/20/2010 | US7757528 Method of manufacturing seamless pipe or tube |
| 07/07/2010 | CN101767108A Method for periodical rolling of seamless steel tube |
| 07/01/2010 | WO2010073035A1 Wear piece element and method of construction |
| 06/09/2010 | EP2193855A1 Rolling control method, rolling control apparatus and control program for a mandrel mill, and a seamless tube or pipe |
| 06/09/2010 | CN101730597A Mandrel mill and process for manufacturing seamless pipe |
| 06/03/2010 | US20100132425 Mandrel mill, operating method of the same and production method of seamless pipe |
| 06/02/2010 | CN101720259A Method for producing seamless pipe and hole type roll |
| 05/19/2010 | CN101711190A Seamless pipe manufacturing method |
| 05/19/2010 | CN101208160B Process for producing seamless tube |
| 05/06/2010 | US20100107713 Method and device for rolling a rolling stock in a rolling mill with a cross-rolling mill |
| 04/21/2010 | CN101151110B Drawing/rolling control method |
| 03/17/2010 | EP2163322A1 Finishing station of variable structure for a machine for the formation of pipes |
| 03/10/2010 | CN101664759A Preparation method of small-specification thick-wall titanium alloy tubular product |
| 03/04/2010 | DE102008039454A1 Verfahren und Walzwerk zur Herstellung eines nahtlosen Stahlrohres A method and rolling mill for producing a seamless steel pipe |
| 03/03/2010 | CN201415213Y Vertical stripping processor for manufacturing seamless thin walled tube |
| 03/03/2010 | CN101658863A Compensation method of seamless steel pipe three-roll mill |
| 02/24/2010 | EP2156908A1 Mandrel mill and process for manufacturing seamless pipe |
| 02/16/2010 | US7661284 Application method of Cr-plated mandrel bar for hot rolling |
| 01/06/2010 | EP2140950A1 Cold-finished seamless steel pipe for integrally molded drive shaft, drive shaft using the pipe, and method for manufacturing the cold-finished seamless steel pipe |
| 01/06/2010 | CN101618399A Cold-rolling mill for pipes |
| 12/30/2009 | CN100574909C Method for manufacturing seamless pipes or tubes |
| 12/23/2009 | EP2135689A1 Method for producing seamless pipe and hole type roll |
| 12/23/2009 | CN101610855A Rolling stand |
| 12/17/2009 | DE212008000032U1 Maßwarmwalzwerk mit 4 Walzen Maßwarmwalzwerk with 4 rollers |
| 12/16/2009 | EP2133159A1 Seamless pipe manufacturing method |
| 12/16/2009 | CN100569982C Manufacturing method for seamless steel pipe |
| 12/02/2009 | EP2127768A1 Reducer pass roll and reducer |
| 11/26/2009 | WO2009141414A1 Rolling mill stand and related rolling mill for longitudinally rolling rod-shaped bodies |
| 11/26/2009 | CA2724417A1 Rolling mill stand and related rolling mill for longitudinally rolling rod-shaped bodies |
| 11/25/2009 | EP2123371A1 Rolling stand |
| 10/28/2009 | EP2111932A1 Method for manufacturing seamless pipes or tubes |
| 10/28/2009 | CN101568395A Mandrel mill and process for manufacturing seamless pipe |
| 10/21/2009 | CN101559435A Vertical stripping processing technology for manufacturing seamless thin wall pipe |
| 09/22/2009 | US7591914 High-workability steel pipe and method of producing same |
| 09/16/2009 | CN101534969A Mandrel mill, its operating method, and seamless pipe manufacturing method |
| 09/02/2009 | CN100534653C Tube reducing apparatus and roll for tube reducing apparatus |
| 08/12/2009 | EP2087949A1 Mandrel mill and process for manufacturing seamless pipe |
| 08/12/2009 | EP1679136B1 Method of manufacturing seamless tube by three-roll mandrel mill |
| 08/12/2009 | CN101505886A Mandrel bar cleaning facility |
| 08/05/2009 | EP2085158A1 Mandrel mill, its operating method, and seamless pipe manufacturing method |
| 08/05/2009 | EP2085157A1 Method and apparatus for adjusting rolling positions of rolling rolls constituting three-roll mandrel mill |
| 08/05/2009 | CN100522405C Method for producing seamless pipe |
| 08/05/2009 | CN100522404C Process for producing seamless steel pipe |