| 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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| 11/27/2003 | US20030217579 Rolling mill for rolling or sizing metal pipes |
| 11/27/2003 | DE10015285C2 Walzstraße zum Walzen von metallischen Rohren, Stäben oder Drähten Rolling mill for rolling metallic tubes, rods or wires |
| 11/19/2003 | EP1362648A1 Method of making an aluminum tube |
| 11/13/2003 | DE10221515C1 Aluminium tube manufacturing method using dressing rollers for texturing outer surface of aluminium tube |
| 11/12/2003 | CN1127383C Seamless steel pipe manufacturing method and equipment |
| 10/15/2003 | CN1448230A Apparatus for producing internally grooved tube |
| 10/15/2003 | CN1448228A Apparatus for producing internally grooved tube |
| 10/09/2003 | DE19935647C2 Verfahren zum Walzen von erwärmtem metallischem Gut und Anlage zur Durchführung des Verfahrens A method of rolling heated metallic materials and plant for carrying out the method |
| 10/02/2003 | US20030182980 Apparatus for producing internally grooved tube |
| 10/02/2003 | US20030182979 Method for producing seamless tube with groved inner surface |
| 08/21/2003 | WO2003068448A1 Pipe welding device |
| 08/20/2003 | CN1436612A Pipe rolling method and rolling mill |
| 08/07/2003 | WO2003064070A1 Method of manufacturing seamless steel pipe |
| 08/07/2003 | US20030145913 Seam welding; electrical resistance; diameter reducing rolling |
| 07/29/2003 | US6598287 Apparatus and method for sizing a galvanized tube |
| 07/24/2003 | US20030135976 Apparatus and method for sizing a galvanized tube |
| 07/23/2003 | EP1329268A2 Method and device for rolling a tube |
| 07/17/2003 | WO2003057383A1 Method and rolling stand for producing rods, bar stock or seamless tubes |
| 07/16/2003 | CN2560449Y Rectangle pipe sizing mill |
| 06/25/2003 | CN1426489A Steelpipe having high formability and method for production thereof |
| 06/18/2003 | DE10157742C1 Verfahren zum Betreiben eines Streckreduzierwalzwerks und Streckreduzierwalzwerk A method for operating a stretch-and stretch- |
| 06/11/2003 | CN1422709A Tension-reduced rolling mill and its operation method |
| 05/28/2003 | EP1314491A1 Method of operating a stretch-reducing mill and stretch-reducing mill |
| 05/08/2003 | WO2003037539A1 Method and device for the production of hollow sections |
| 05/02/2003 | EP1306143A1 Method and apparatus for the manufacturing of hollow profiles |
| 04/10/2003 | DE10201717C1 Pipe rolling stand in which at least two rollers work together, takes the measured pipe wall thickness at different peripheral positions to control the roller rotary speeds independently |
| 03/20/2003 | US20030051524 Roll stand for rolling bar-shaped or tubular material |
| 03/19/2003 | EP1293580A1 High carbon steel pipe excellent in cold formability and high frequency hardenability and method for producing the same |
| 03/04/2003 | US6526792 Method for minimizing thickened ends during the rolling of pipes in a stretch reducing mill |
| 02/11/2003 | US6518533 High strength steel tubing |
| 02/05/2003 | CN1100629C Methd for producing welded Cu and Cu alloy pipes |
| 01/14/2003 | US6505491 Rolling mill and rolling-mill train |
| 01/09/2003 | US20030008171 Formed via heating or soaking; tensile strength; for underbody components of vehicles |
| 01/07/2003 | US6502446 Rolling unit for a rolling mill for rolling or sizing metal pipes, bars or wires |
| 01/01/2003 | CN1388834A High carbon steel pipe excellent in cold formability and high frequency hardenability and method for producing the same |
| 12/27/2002 | WO2002103070A1 Method for producing steel pipe having high ductility |
| 12/19/2002 | DE10127562A1 Universal mill stand used for continuously deforming tubes, especially in tube welding devices, to round or profile tubes has a vertical roller assigned to the drive side of horizontal rollers |
| 12/18/2002 | CN1096328C Producing method and preparing equipment for steel pipe |
| 12/14/2002 | WO2002103069A1 Steel pipe having high formability and method for production thereof |
| 12/11/2002 | EP1264645A2 Welded steel pipe having excellent hydroformability and method for making the same |
| 12/10/2002 | US6490901 Rolling unit for a rolling mill for rolling or sizing metal pipes, bars or wires |
| 12/10/2002 | US6490900 Pipe gauging and rounding apparatus and method |
| 11/27/2002 | EP1109634B1 Method for minimizing thickened ends during the rolling of pipes in a stretch reducing mill |
| 11/27/2002 | EP1001856B1 METHOD FOR PRODUCING WELDED Cu AND Cu ALLOY PIPES |
| 11/26/2002 | CA2201166C A method of preparing a steel pipe, an apparatus thereof and a steel pipe |
| 10/29/2002 | CA2082031C A rolling stand, having three or more driven and adjustable rollers |
| 10/24/2002 | US20020153070 For use as steering shaft and a drive shaft of automobiles |
| 10/16/2002 | CN1092787C Fin tube with multi-fin and its producing method |
| 10/08/2002 | US6460389 Method and apparatus for rolling of heated metallic products |
| 08/28/2002 | EP0988120B1 Method and device for detecting the actual state of a hot tube |
| 07/03/2002 | EP1219377A1 Manufacturing device for heating tube with internal grooves and fin rolling roll |
| 07/03/2002 | EP1064107B1 Rolling stand, having three or more swinging and adjustable arms |
| 06/11/2002 | US6401323 Method of producing welded Cu and Cu alloy pipes |
| 04/18/2002 | WO2002030586A1 Pipe gauging and rounding apparatus and method |
| 04/17/2002 | CN1082855C Steel pipe manufacturing method and apparatus and steel pipe |
| 04/10/2002 | CN1343536A Section-variable tube of single rotator and its manufacture method and equipment |
| 02/27/2002 | EP0921873B1 Rolling mill for sizing tubes or cylindrical bodies in general in the iron and steel industry |
| 02/21/2002 | US20020020205 Rolling mill for rolling or sizing metallic pipes, bars or wires |
| 01/30/2002 | EP0842715B1 Seamless steel pipe manufacturing method and equipment |
| 01/09/2002 | EP1170068A1 Three-roll-type reducing mill for electro-resistance-welded tube |
| 01/09/2002 | EP1169150A1 Method for manufacturing a pipe with a not circular cross-section and device therefor |
| 12/20/2001 | WO2001096624A1 High carbon steel pipe excellent in cold formability and high frequency hardenability and method for producing the same |
| 11/07/2001 | CN1320493A Method for making high-bond composite bimetal pipe |
| 11/01/2001 | US20010035037 Rolling unit for a rolling mill for rolling or sizing metal pipes, bars or wires |
| 10/18/2001 | DE10015285A1 Rolling mill for rolling metal pipes, rods or wires has successive rolling stages provided with replaceable rollers |
| 10/11/2001 | US20010027674 Rolling unit for a rolling mill for rolling or sizing metal pipes, bars or wires |
| 10/11/2001 | US20010027673 Rolling mill and rolling-mill train |
| 10/11/2001 | DE10015340A1 Roll stand used for a rolling mill for rolling metal pipes, rods and wires has roller shafts with roller bearings located within eccentric bushings whose rotating position can be changed using an adjusting device |
| 10/11/2001 | DE10015339A1 Walzgerüst für Walzstraßen zum Walzen von metallischen Rohren, Stäben oder Drähten Rolling mill for rolling mills for rolling metal tubes, rods or wires |
| 10/03/2001 | CN1315887A Method for minimizing thickened ends during rolling of pipes in stretch reducing mill |
| 09/19/2001 | EP1134043A2 Rolling mill and rolling-mill train |
| 09/12/2001 | CN1312138A Rolling mill and rolling-mill group |
| 09/05/2001 | CN1070394C Roll pass system for pipe-reducing rolling mill |
| 08/21/2001 | US6276182 Rolling stand, having three or more swinging and adjustable arms |
| 08/21/2001 | US6276181 Three-roll-type reducing mill for electro-resistance-welded tube |
| 07/25/2001 | CN1068804C Calibre contour in rolling mill roller for tubes |
| 07/25/2001 | CN1068803C Rolling unit for rolling rod-shaped or tubular bodies |
| 06/27/2001 | EP1109634A1 Method for minimizing thickened ends during the rolling of pipes in a stretch reducing mill |
| 06/27/2001 | CN2436247Y Gearing mechanism for cold pipe rolling machine |
| 06/26/2001 | US6250125 Method for producing iron-base dispersion-strengthened alloy tube |
| 06/21/2001 | DE10020131C1 Fabrication method for hot-finished seamless tube of high-temperature steel ingot is heated and punched into hollow block to dimensions close to hot rolling in pilger mill |
| 06/06/2001 | CN1066645C Roll stand with separable roll parting adjustment assembly |
| 05/23/2001 | CN1066075C Method for making square section steel pipe |
| 05/02/2001 | CN1293600A Rolling stand having three or more adjustable arms |
| 04/18/2001 | CN1291533A Manufacturing method of square steel tube and round steel tube |
| 04/18/2001 | CN1291532A Manufacturing method of square steel tube and round steet tube |
| 04/10/2001 | CA2101486C Apparatus for continuously shaping a metal tube |
| 03/07/2001 | CN2422072Y Main engine of high speed cooling pipe mill |
| 03/07/2001 | CN1062785C Method for producing seamless hot-finished tube |
| 03/01/2001 | DE19941163A1 Verfahren zur Drehzahlsteuerung zwecks Minimierung der Innenpolygonbildung A method for controlling speed in order to minimize the formation of inner polygons |
| 02/28/2001 | EP1078700A2 Method of speed control in order to minimize the formation of inner polygons |
| 02/08/2001 | DE19935647A1 Hot rolling of wire, rod or seamless tube is carried out in mill using as many of the same units as possible lines |
| 01/17/2001 | CN1060690C Technique for continuously drawing pipe using long rod rolling mould |
| 01/11/2001 | WO2001002124A1 Manufacturing device for heating tube with internal grooves and fin rolling roll |
| 01/03/2001 | EP1064107A1 Rolling stand, having three or more swinging and adjustable arms |
| 12/20/2000 | CN1059612C Rolling apparatus and technique for multi-start spirally grooved tube and axial grooved tube |
| 11/02/2000 | WO2000064606A1 Method for manufacturing a pipe with a not circular cross-section and device therefor |
| 10/10/2000 | US6128934 Stretch reduction mill |
| 09/12/2000 | US6116071 Rolling mill for sizing tubes or cylindrical bodies in general in the iron and steel industry |
| 09/08/2000 | WO2000051776A1 High speed metal joining process |