| Patents for B21B 23 - Tube-rolling not restricted to methods provided for in only one of groups , e.g. combined processes (649) |
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| 09/03/2008 | EP1836009A4 Shaped direct chill aluminum ingot |
| 09/03/2008 | CN101254507A Method for manufacturing seamless pipes or tubes |
| 08/20/2008 | CN101245437A High collapse-resistance and hydrogen sulphide-corrosion-resistant low alloy petroleum case pipe and method of manufacturing the same |
| 08/13/2008 | EP1955798A2 Dividing device for basically linear workpieces and method for separating basically linear workpieces |
| 08/07/2008 | US20080184544 Hemming processing method and hemming processing apparatus |
| 07/23/2008 | EP1946859A1 Method for manufacturing seamless pipes or tubes |
| 07/22/2008 | US7401485 Apparatus for inspecting steel strip during rolling |
| 06/12/2008 | US20080134739 Shape Detection Device and Shape Detection Method |
| 06/04/2008 | CN101191164A Secondary electron emission material palladium-barium alloy and preparation method thereof |
| 05/29/2008 | WO2008062752A1 Manufacturing method for seamless pipe |
| 05/15/2008 | US20080113534 Hollow Bar Manufacturing Process |
| 05/14/2008 | CN201058343Y Deciding and reducing tube units of weldless steel tube |
| 04/30/2008 | CN100384553C Seamless steel tube for drive shaft and method for manufacturing the same |
| 03/26/2008 | CN101151387A Thick seamless steel pipe for line pipe and method for production thereof |
| 03/20/2008 | WO2008032508A1 Device and method for monitoring manufacturing status of seamless pipe and seamless pipe manufacturing facility |
| 03/18/2008 | CA2286085C Dynamic crown control back-up roll assembly |
| 02/21/2008 | WO2008020510A1 Method for producing seamless pipe |
| 02/13/2008 | CN101121184A Method for manufacturing titanium base composite pipe-rod materials |
| 02/05/2008 | US7325429 Method for manufacturing seamless steel pipe or tube |
| 01/23/2008 | CN101111323A Shaped direct chill aluminum ingot |
| 01/16/2008 | CN101104179A All direction multifunctional adjustment disc extending machine |
| 01/09/2008 | EP1876254A1 Thick seamless steel pipe for line pipe and method for production thereof |
| 01/09/2008 | EP1595609B1 Seamless steel tube for drive shaft and method of manufacturing the same |
| 01/03/2008 | WO2007106572A3 Elongated member twisting tool |
| 12/20/2007 | US20070289349 Method for producing longitudinal grooves in cylindrical workpieces |
| 12/12/2007 | CN100354053C Method of manufacturing seamless tube. |
| 12/06/2007 | WO2007138914A1 Process for producing seamless stainless-steel pipe |
| 11/28/2007 | CN101077505A Seamless steel pipe restraint tandem rolling short flowpath roller milling process |
| 11/21/2007 | CN101073810A Fixed diameter reducer set of seamless steel pipe |
| 11/13/2007 | US7293443 Method for manufacturing seamless pipes or tubes |
| 11/08/2007 | WO2007126005A1 Process for producing stainless-steel pipe |
| 11/07/2007 | CN101068636A Method for production of a seamless hot-finished steel tube and device for carrying out said method |
| 10/18/2007 | WO2007116821A1 Method of manufacturing seamless pipe |
| 10/11/2007 | WO2007114246A1 Method for production of martensitic stainless steel pipe |
| 10/11/2007 | WO2007114077A1 Process for producing seamless two-phase stainless-steel pipe |
| 10/04/2007 | WO2007111258A1 Cold finish seamless steel pipe for drive shaft and method for producing the same |
| 10/04/2007 | WO2007111131A1 Process for production of seamless pipes |
| 09/26/2007 | EP1836009A2 Shaped direct chill aluminum ingot |
| 09/07/2007 | WO2007100042A1 PROCESS FOR PRODUCING HIGH-Cr SEAMLESS PIPE |
| 08/23/2007 | WO2007094424A1 Disk roll and method of manufacturing seamless pipe using the same |
| 08/22/2007 | EP1820576A1 Production method of seamless steel pipe |
| 08/22/2007 | CN101020986A N80 level petroleum pipe produced with micro alloyed medium carbon steel and its production process |
| 08/22/2007 | CN101020192A Hot rolling process of seamless steel pipe |
| 08/22/2007 | CN101020191A Hot rolling process of seamless steel pipe |
| 08/22/2007 | CN101020190A Hot rolling process of seamless steel pipe |
| 08/15/2007 | CN101016599A Low carbon equivalent micro-alloy steel pipe and on-line normalizing process thereof |
| 08/08/2007 | EP1814679A1 Method for production of a seamless hot-finished steel tube and device for carrying out said method |
| 08/08/2007 | CN1330436C Method for making soldered hot-rolled composite metal tube |
| 08/08/2007 | CN101011707A Technology for manufacturing collar thick-wall seamless steel pipe |
| 07/04/2007 | CN1993189A Thermal processing method of Cr-containing steel |
| 06/21/2007 | WO2007068439A1 Method for manufacturing a tube of copper or copper alloy |
| 06/20/2007 | CN1985021A High integrity sputtering target material and method for producing bulk quantities of same |
| 06/14/2007 | US20070132307 Central support unit of an axle bracket housing for motor vehicles |
| 06/13/2007 | EP1795274A1 METHOD FOR HOT WORKING OF Cr-CONTAINING STEEL |
| 05/23/2007 | CN1317480C Sleeved petroleum pipe with special jointer for resisting squeeze and its making method |
| 05/15/2007 | CA2497694C High-ductility, high-strength steel product and process for production thereof |
| 05/01/2007 | CA2400767C Process for the production of industrial tubes or section bars from metal and related apparatus |
| 04/12/2007 | WO2006071607A3 Shaped direct chill aluminum ingot |
| 04/10/2007 | US7201812 Method for manufacturing seamless steel tube |
| 03/22/2007 | US20070062238 Method for manufacturing seamless steel pipe or tube |
| 03/21/2007 | EP1764167A1 Method and rolling mill for manufacturing a seamless tube |
| 03/08/2007 | US20070050965 Hollow bar manufacturing process |
| 02/28/2007 | EP1757376A1 Process for producing seamless steel pipe |
| 02/07/2007 | CN1909984A Method for producing seamless pipe |
| 02/01/2007 | US20070022796 Method for manufacturing seamless pipes or tubes |
| 11/22/2006 | CN1867688A Martensitic stainless steel pipe and method for production thereof |
| 11/09/2006 | US20060248706 Method for prodcuing a cast metal strip and corresponding twin casting installation |
| 10/25/2006 | CN1281348C Producing method for precision superlong copper alloy pipe |
| 10/19/2006 | US20060231166 High-strength hot-rolled steel sheet excelling in bore expandability and ductility and process for producing the same |
| 10/05/2006 | WO2006103894A1 Thick seamless steel pipe for line pipe and method for production thereof |
| 10/04/2006 | EP1707280A1 Method for producing seamless pipe |
| 09/28/2006 | WO2006076333A3 High integrity sputtering target material and method for producing bulk quantities of same |
| 09/27/2006 | EP1704266A2 High integrity sputtering target material and method for producing bulk quantities of same |
| 09/19/2006 | US7110840 Master control system for a rolling mill |
| 08/09/2006 | CN2803604Y Tube rolling mill |
| 08/03/2006 | US20060169375 Controlled content of elements C, Si, Mn and Cr; reduced bubble/void content ratio in scales formed on a surface, along with high precision for defect detection (ultrasonic testing) in a non-destructive inspection; weather resistance |
| 07/26/2006 | EP1683884A1 Martensitic stainless steel pipe and method for production thereof |
| 07/20/2006 | WO2006076333A2 High integrity sputtering target material and method for producing bulk quantities of same |
| 07/06/2006 | CA2595251A1 Shaped direct chill aluminum ingot |
| 06/21/2006 | CN1260018C Hot-rolling perforation-cold-rolling forming method for hollow rock-drill steel |
| 06/14/2006 | CN1259515C Method for making ferrite stainless steel seamless pipes and cold working process thereof |
| 06/08/2006 | DE102004059093A1 Device for perforating heated metal ingots comprises a circular die having a base with the side facing the pressing stamp having a recess |
| 06/08/2006 | DE102004059092A1 Seamless pipe, of high heat resistant steel formed from a block shaped into a hollow body with the base pierced to form a thick-wall pipe while hot to be rolled to the final dimensions and tempered |
| 06/07/2006 | EP1663543A1 Hollow bar manufacturing process |
| 05/04/2006 | WO2006046702A1 Production method of seamless steel pipe |
| 05/04/2006 | WO2006045301A1 Method for production of a seamless hot-finished steel tube and device for carrying out said method |
| 05/04/2006 | CA2584461A1 Method of making a seamless hot-finished steel pipe, and device for carrying out the method |
| 04/26/2006 | CN1764509A Method of manufacturing seamless tube. |
| 03/16/2006 | US20060053860 Method and plant for rolling and subsequent reeling of metal strip in particular steel strip |
| 03/16/2006 | US20060053617 Method and device for the continuous production of metallic strips |
| 03/08/2006 | CN1744955A Seamless steel tube for drive shaft and method for manufacturing the same |
| 01/18/2006 | CN1721753A Manufacturing method of ferritic stainless steel seamless pipe with small diameter |
| 12/28/2005 | CN1233481C Hollow drill steel rolling process |
| 12/21/2005 | EP1259342B1 Process for the production of industrial tubes or section bars from metal and related apparatus |
| 12/08/2005 | WO2005115650A1 Process for producing seamless steel pipe |
| 12/08/2005 | WO2005064037A3 High integrity sputtering target material and method for producing bulk quantities of same |
| 12/01/2005 | US20050266927 Seamless steel tube for drive shaft and method for manufacturing the same |
| 11/17/2005 | US20050252268 High integrity sputtering target material and method for producing bulk quantities of same |
| 11/16/2005 | EP1595609A1 Seamless steel tube for drive shaft and method of manufacturing the same |
| 11/10/2005 | WO2005068098A9 Method for producing seamless pipe |