| 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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| 04/02/2008 | CA2601659A1 Annular gas turbine engine case and method of manufacturing |
| 03/26/2008 | CN101151110A Drawing/rolling control method |
| 03/26/2008 | CN101151107A Drawing rolling method for mandrel mill |
| 02/28/2008 | WO2008023563A1 Mandrel bar cleaning facility |
| 02/28/2008 | WO2007144905A8 Retained mandrel rolling mill for seamless tubes |
| 02/28/2008 | US20080047317 Method of manufacturing a seamless steel tube |
| 02/20/2008 | EP1889670A1 Manufacturing method and manufacturing apparatus of pipe, thickness deviation information derivation apparatus, and computer program |
| 02/20/2008 | EP1889669A1 Drawing rolling method by mandrel mill |
| 02/20/2008 | CN201024190Y Cross piercing billet heating device |
| 02/19/2008 | US7333925 Manufacturing method and manufacturing apparatus of pipe, thickness deviation information derivation apparatus, and computer program |
| 02/13/2008 | CN100368102C Method of manufacturing seamless tube by three-roll mandrel mill |
| 02/06/2008 | CN201015777Y Tandem rolling hole shaped system |
| 02/06/2008 | CN201015776Y Cold rolling taper pipe fitting mold |
| 02/06/2008 | CN100366778C Steel in use for fire resistant, heat insulated oil line, and preparation method |
| 02/05/2008 | US7325429 Method for manufacturing seamless steel pipe or tube |
| 01/22/2008 | US7320237 Method for measuring misalignment of continuance mill and apparatus for measuring the same |
| 01/17/2008 | US20080011037 Process for manufacturing a seamless tube |
| 01/16/2008 | EP1878514A1 Process for producing seamless steel pipe |
| 01/09/2008 | EP1595609B1 Seamless steel tube for drive shaft and method of manufacturing the same |
| 01/02/2008 | EP1872878A1 Process for producing seamless tube |
| 12/21/2007 | WO2007144905A1 Retained mandrel rolling mill for seamless tubes |
| 12/18/2007 | US7308812 Process for producing seamless steel pipe |
| 12/12/2007 | CN100354053C Method of manufacturing seamless tube. |
| 11/22/2007 | DE102007021999A1 Verfahren zum Warmwalzen nahtloser Rohre auf einem Innenwerkzeug und Innenwerkzeug A process for hot-rolling of seamless tubes on an internal tool and an internal tool |
| 11/17/2007 | CA2550680A1 Method for making high-strength steel pipe, and pipe made by that method |
| 11/14/2007 | EP1854561A1 Process for producing seamless pipe and cleaning equipment |
| 11/13/2007 | US7293443 Method for manufacturing seamless pipes or tubes |
| 11/08/2007 | WO2007126005A1 Process for producing stainless-steel pipe |
| 11/07/2007 | EP1850981A1 Hot reduced coil tubing and a method for forming same |
| 10/11/2007 | WO2007114413A1 High-strength seamless steel pipe for mechanical structure which has excellent toughness and weldability, and method for manufacture thereof |
| 10/11/2007 | WO2007114173A1 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 |
| 10/11/2007 | WO2007114041A1 Method for production of seamless pipe, and oxidizing gas supply apparatus |
| 10/04/2007 | WO2007111258A1 Cold finish seamless steel pipe for drive shaft and method for producing the same |
| 10/03/2007 | CN101045978A Manufacturing method for seamless steel pipe |
| 10/03/2007 | CN100340353C Method and apparatus for producing pipe, wall thickness variation-obtaining device, and computer program |
| 08/22/2007 | EP1820576A1 Production method of seamless steel pipe |
| 08/16/2007 | US20070186610 Changeover system and changeover method for a metal forming mill |
| 08/08/2007 | EP1815921A1 Roll for molding square tube and method and device for rollingly molding square tube |
| 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 |
| 08/01/2007 | CN1329137C Method and apparatus for rolling a tube |
| 07/12/2007 | US20070157691 Process for producing seamless steel pipe |
| 07/04/2007 | CN1993189A Thermal processing method of Cr-containing steel |
| 06/13/2007 | EP1795274A1 METHOD FOR HOT WORKING OF Cr-CONTAINING STEEL |
| 06/13/2007 | CN1980751A Rolling control method for mandrel mill, rolling control device, control program, and seamless tube |
| 05/23/2007 | CN1968766A Process for producing seamless steel pipe |
| 05/10/2007 | WO2007051242A1 Hollow bar manufacturing process |
| 05/02/2007 | EP1779939A1 Rolling control method for mandrel mill, rolling control device, control program, and seamless tube |
| 04/25/2007 | CN1951588A Method of producing seamless steel tubes |
| 04/18/2007 | EP1775038A1 Process for producing seamless steel pipe |
| 04/03/2007 | US7197906 Cold rolling process for metal tubes |
| 03/29/2007 | DE102005044777A1 Verfahren und Walzwerk zur Herstellung eines nahtlosen Rohres A method and rolling mill for producing a seamless pipe |
| 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 |
| 03/13/2007 | US7188501 Cold rolling process for metal tubes |
| 03/07/2007 | CN1925931A Changeover system and changeover method for a metal forming mill |
| 02/28/2007 | EP1757376A1 Process for producing seamless steel pipe |
| 02/15/2007 | US20070036426 Method for measuring misalignment of continuance mill and apparatus for measuring the same |
| 02/13/2007 | US7174761 Method of manufacturing a seamless pipe |
| 02/08/2007 | WO2007015484A1 Device and method for detecting flaw on tube |
| 02/08/2007 | WO2007014911A1 Rolling mill with stands with three adjustable rolls |
| 02/08/2007 | CA2616952A1 Rolling mill with stands with three adjustable rolls |
| 02/07/2007 | CN1909987A Method and device for controlling fixed diameter rolling of tube |
| 02/07/2007 | CN1909985A Tube reducing apparatus and roll for tube reducing apparatus |
| 02/07/2007 | CN1909984A Method for producing seamless pipe |
| 02/01/2007 | US20070022796 Method for manufacturing seamless pipes or tubes |
| 01/31/2007 | CN1905958A Tube manufacturing method and apparatus for fixed diameter rolling |
| 01/23/2007 | US7165431 Cr-plated mandrel bar for manufacturing hot seamless tube and method of manufacturing the same |
| 12/28/2006 | US20060288751 Cold rolling process for metal tubes |
| 12/28/2006 | US20060288750 Cold rolling process for metal tubes |
| 12/20/2006 | EP1733817A1 Method and device for controlling fixed diameter rolling of tube |
| 12/20/2006 | CN1290633C Method of manufacturing seamless steel pipe |
| 12/19/2006 | CA2150588C Multiple finned tube and a method for its manufacture |
| 12/13/2006 | EP1731234A1 Tube manufacturing method and apparatus for fixed diameter rolling |
| 12/07/2006 | US20060272373 Manufacturing method and manufacturing apparatus of pipe, thickness deviation information derivation apparatus, and computer program |
| 12/06/2006 | CN1873041A Steel in use for fire resistant, heat insulated oil line, and preparation method |
| 11/15/2006 | CN1863611A Method of measuring misalignment of multi-stage rolling mill and measuring device therefor |
| 11/15/2006 | CN1863609A Method and device for adjusting rolling positions of reduction rolls in three-roll mandrel mill |
| 11/15/2006 | CN1863608A Method of manufacturing seamless tube by three-roll mandrel mill |
| 10/12/2006 | WO2006106961A1 Process for producing seamless tube |
| 10/12/2006 | WO2006106938A1 Drawing/rolling control method |
| 10/05/2006 | WO2006104146A1 Drawing rolling method by mandrel mill |
| 10/04/2006 | EP1707281A1 Tube reducing apparatus and roll for tube reducing apparatus |
| 10/04/2006 | EP1707280A1 Method for producing seamless pipe |
| 10/04/2006 | CN1840330A Narrowing mechanism for steel-plastic composite pipe |
| 09/06/2006 | CN1273231C Manufacturing method for punch roller |
| 08/31/2006 | WO2006090718A1 Process for producing seamless pipe and cleaning equipment |
| 08/24/2006 | WO2006088107A1 Process for producing seamless steel pipe |
| 08/24/2006 | CA2598297A1 Method of manufacturing a seamless steel pipe |
| 08/22/2006 | US7093469 Manufacturing method and manufacturing apparatus of pipe, thickness deviation information derivation apparatus, and computer program |
| 07/27/2006 | WO2006078768A1 Hot reduced coil tubing and a method for forming same |
| 07/26/2006 | EP1683587A1 Method and rolling mill for rolling tubes by means of a mandrel |
| 07/19/2006 | CN1264618C Method for making metal pipe and planetary skew rolling mill |
| 07/12/2006 | EP1679137A1 Method of measuring misalignment of multi-stage rolling mill and measuring device therefor |
| 07/12/2006 | EP1679136A1 Method of manufacturing seamless tube by three-roll mandrel mill |
| 07/05/2006 | EP1676651A1 Method and device for adjusting screw-down location of rolling roll forming three-roll mandrel mill |
| 06/27/2006 | CA2299372C Method for producing welded cu and cu alloy pipes |
| 06/22/2006 | US20060130548 Cr-plated mandrel bar for manufacturing hot seamless tube and method of manufacturing the same |
| 06/21/2006 | CN1260019C Method and apparatus for measuring eccentricity of hollow pipe billet |
| 05/25/2006 | US20060107718 Deformed forging |