| Patents for B21C 1 - Manufacture of metal sheets, wire, rods,tubesor like semi-manufactured productsby drawing (5,150) |
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| 05/18/2004 | US6735998 Method of making metal ball bats |
| 05/13/2004 | WO2004039513A1 Device and method for reshaping bar-shaped materials particularly for drawing and extruding |
| 05/13/2004 | WO2004026499A9 Duct reinforcement rod and fabrication apparatus |
| 05/12/2004 | CN2614808Y Hydraulic two-step pushing square pipe producing machine |
| 05/12/2004 | CN2614807Y Push drawing machine |
| 05/11/2004 | US6732562 Apparatus and method for drawing continuous fiber |
| 05/06/2004 | EP1118087A4 Medical devices incorporating at least one element made from a plurality of twisted and drawn wires at least one of the wires being a nickel-titanium alloy wire |
| 05/05/2004 | CN1494597A Mfg. process for making engine components of high carbon content steel using cold forming techniques |
| 05/05/2004 | CN1493410A 湿拉丝机 Wet Drawing Machine |
| 04/28/2004 | EP1412549A1 Bundle drawn stainless steel fibers |
| 04/28/2004 | CN1492786A Continuing rolling apparatus for wire |
| 04/21/2004 | EP1409170A1 Method and device for applying compressive and/or tractional forces to essentially rod-shaped workpieces consisting of electroconductive and/or magnetisable material |
| 04/21/2004 | CN1146482C Production process of composite aluminium-plastic pipe and its special pipe drawing machine |
| 04/08/2004 | US20040065134 Method of making metal ball bats |
| 04/06/2004 | US6715332 Method of drawing metal workpieces and drawing unit for a drawing machine |
| 04/06/2004 | US6715331 Drawing of steel wire |
| 04/01/2004 | WO2004026499A2 Duct reinforcement rod and fabrication apparatus |
| 04/01/2004 | WO2003092120A3 Copper cladded ultra high strength electrical conductor |
| 03/31/2004 | CN2608177Y Flat form chain small pipe flat wire material drawing machine |
| 03/31/2004 | CN2608176Y Profiled steel pipe hydraulic cold drawing machine |
| 03/31/2004 | CN2608175Y Chain small pipe material long material drawing machine |
| 03/31/2004 | CN2608174Y Waveform chain small pipe flat wire material drawing machine |
| 03/31/2004 | CN2608173Y Chain small pipe material long material drawing machine |
| 03/31/2004 | CN1485455A Method for manufacturing non-heat treatment type aluminum alloy wire of high conductivity and heat resistance |
| 03/31/2004 | CN1143903C High-strength steel wire with anti-strain-ageing-brittle and anti-longitudinal-crack and manufacture method thereof |
| 03/25/2004 | US20040055352 Method of continuous production of metal wires |
| 03/24/2004 | EP1400605A1 Magnesium base alloy wire and method for production thereof |
| 03/24/2004 | CN1484332A Method for making high-precision, sltrathin, ultrahigh cell casing |
| 03/18/2004 | US20040050133 Method of forming cold diametrally reducing roll for metal pipe and metal pipe formed by the method |
| 03/18/2004 | US20040049917 Method of making an internal grooved tube |
| 03/17/2004 | CN1481947A Double-lined drawing machine |
| 03/17/2004 | CN1142041C Machining of sheet without removal material |
| 03/16/2004 | US6705329 Inner circumferential surface of a metal pipe having a large wall thickness and a small diameter is cleaned using a solvent for dissolving foreign particles comprising an acid, alkali or organic solvent |
| 03/11/2004 | DE10340204A1 Verfahren zum Kaltziehen von Rohren A method for cold drawing of tubes |
| 03/09/2004 | US6702039 Perforating gun carriers and their methods of manufacture |
| 03/04/2004 | DE10336988A1 Continuous manufacture of metal wires, e.g. in electrical industry, involves shaping round metal wire to form flat wire in laterally open gauge at least during final stage and without significant decrease in cross-section |
| 03/03/2004 | EP1393828A2 method for continuous production of metal wires |
| 03/03/2004 | EP1393827A2 Method of cold-drawing of tubes |
| 03/03/2004 | EP1042516B1 Cold drawn wire and method for the manufacturing of such wire |
| 03/03/2004 | CN1140361C Method for making composite metal pipe |
| 02/26/2004 | US20040035576 Steel pipe for embedding-expanding, and method of embedding-expanding oil well steel pipe |
| 02/25/2004 | EP1391255A2 Method for producing blanks having a fine-grain structure |
| 02/25/2004 | CN1139937C Boiling water type atomic reactor |
| 02/25/2004 | CN1139445C Process for preparing seamless composite metal pipe |
| 02/24/2004 | US6696170 Copper-free wire |
| 02/19/2004 | WO2004014578A1 Bundle draw based processing of nanofibers and method of making |
| 02/19/2004 | US20040031308 Apparatus for manufacturing small diameter medical devices |
| 02/12/2004 | WO2003053621A3 Wire for high-speed electrical discharge machining |
| 02/12/2004 | US20040025560 Radioactive substance containment vessel, and radioactive substance contaiment vessel producing device and producing method |
| 02/12/2004 | DE20122031U1 Method for applying compressive and/or tractional forces to a rod-shaped workpiece applies a magnetic field to the workpiece with a gradient in the direction of the force to be applied |
| 02/11/2004 | CN1473671A Method for producing pure copper high precision semi hollow section bar |
| 02/10/2004 | US6688152 Modular drawing apparatus and drawing |
| 02/10/2004 | US6688148 Annealing, coating with lubricant; drawing, reducing diameter; heat treatment, quenching |
| 02/05/2004 | DE10234029A1 Vorrichtung zur abschnittsweisen Autofrettage von Rohren Apparatus for piecewise autofrettage of pipes |
| 02/04/2004 | EP1385647A1 Chain drawing machine for continuously drawing drawn items |
| 02/03/2004 | US6685082 Process for continuous production of longitudinally welded metal tubing |
| 02/03/2004 | US6684675 Drawing machine |
| 01/29/2004 | WO2004009267A1 Method for manufacture of a metal shell, and a cup designed to serve as a blank |
| 01/29/2004 | CA2492603A1 Method for manufacture of a metal shell, and a cup designed to serve as a blank |
| 01/28/2004 | EP1384534A1 Apparatus for sectional autofrettage of tubes |
| 01/22/2004 | US20040011111 Drawing machine |
| 01/21/2004 | CN2600187Y Device for drawing steel pipe |
| 01/15/2004 | DE10249071B3 Linearantrieb für die Materialzufuhr an Werkzeugmaschinen Linear drive for material feeding machine tools |
| 01/07/2004 | CN2597119Y Device for continuously producing low-relaxed prestress steel wire |
| 01/07/2004 | CN1466496A Method of forming cold diametrally reducing roll for metal pipe and metal pipe formed by the method |
| 01/02/2004 | EP1375820A1 Steel pipe for use as embedded expanded pipe, and method of embedding oil-well steel pipe |
| 01/02/2004 | EP1375019A1 Thick-walled small diameter pipe producing method |
| 12/24/2003 | CN2595075Y A.C. transmission system for complete direct feeding winder |
| 12/24/2003 | CN2593923Y Bar and wire drawing apparatus |
| 12/16/2003 | US6663523 Auxiliary chain for drawing assembly in drawing machines |
| 12/09/2003 | US6659137 Two-layer clad pipe |
| 12/04/2003 | DE20218607U1 Hot bulb for heat treatment of wires in wire drawing machines is cylinder of electrically conducting material, and surface of cylinder has parallel disposed slot, groove or corrugation form recesses |
| 11/20/2003 | DE20314589U1 Wire-drawing assembly combines a conical wire-drawing unit with a tandem wire-drawing unit |
| 11/20/2003 | DE20314588U1 Wire drawing assembly has two or more of the drawing chambers alternately process different types of wire material with different tools |
| 11/19/2003 | CN1128240C Stretching steel wire bar with good twisting property and its manufacturing mehtod |
| 11/18/2003 | US6647755 Method for manufacturing small diameter medical devices |
| 11/12/2003 | EP1361003A2 Method for manufacuturing seamless steel tube |
| 11/12/2003 | EP1360338A2 Manufacturing process for making engine components of high carbon content steel using cold forming techniques |
| 11/12/2003 | CN2585713Y Prodn. appts. for metal/plastic coposite tube |
| 11/12/2003 | CN1454725A Process and apparatus of intelligent production of spiral reinforcement |
| 11/11/2003 | US6645319 Wire rod for drawing superior in twisting characteristics and method for production thereof |
| 11/11/2003 | US6644467 Track for drawing assembly and method to remove the relative gripping elements |
| 11/06/2003 | WO2003092120A2 Copper cladded ultra high strength electrical conductor |
| 10/29/2003 | EP1355748A1 Drawing machine |
| 10/29/2003 | CN2582771Y Chain small pipe material long material wire-drawing bench |
| 10/28/2003 | US6638377 Used for pipes connecting automotive radiators and heaters or pipes connecting automotive evaporators, condensers, and compressors |
| 10/23/2003 | US20030196734 Method for manufacturing seamless steel tube |
| 10/21/2003 | US6634201 Method and apparatus for drawing elongated stock continuously |
| 10/16/2003 | WO2003084689A1 Wire drawing device |
| 10/15/2003 | CN1448230A Apparatus for producing internally grooved tube |
| 10/15/2003 | CN1448228A Apparatus for producing internally grooved tube |
| 10/08/2003 | EP1350576A2 Driver system for devices for the drawing or braking of metal strips |
| 10/02/2003 | US20030182980 Apparatus for producing internally grooved tube |
| 10/02/2003 | US20030182979 Method for producing seamless tube with groved inner surface |
| 09/24/2003 | CN2574799Y Rolling flanging machine |
| 09/24/2003 | CN1121941C Bimetallic composite wire of stainless steel coated carbon steel and its production process |
| 09/24/2003 | CN1121915C Method for manufacturing tube with low wind resistance for saddle |
| 09/18/2003 | WO2003076097A1 Method of manufacturing torsion bar for vehicle steering device and torsion bar |
| 09/17/2003 | CN1121505C Process for preparing Al-Si alloy wire |
| 09/17/2003 | CN1121317C Constained filament electrolytic anode and process of fabrication |