| Patents for B21C 3 - Profiling tools for metal drawing; Combinations of dies and mandrels for metal drawing (1,992) |
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| 02/10/1993 | CN1068760A Apparatus for cold-drawing threaded wire |
| 01/28/1993 | DE4124618A1 Mfr. of welded hollow profiles - using cylindrical rollers with different dia. and chain drawing machine to move tubes |
| 01/27/1993 | EP0489729A4 Process for making highly reactive sub-micron amorphous titanium diboride power and products made therefrom |
| 12/08/1992 | US5168742 Method and apparatus for forming wall ironed articles |
| 12/01/1992 | US5167673 Vapor deposited diamond layer on polymer support |
| 10/28/1992 | CN2119974U Drawing die set |
| 10/28/1992 | CN2119973U Seamless tee working die set |
| 10/20/1992 | US5156036 Method and apparatus for drawing open-sided channel members |
| 10/14/1992 | CN1065199A Equipment for manufacturing of subcutaneous capsules |
| 09/29/1992 | WO1992017148A1 Equipment for manufacturing of subcutaneous capsules |
| 09/29/1992 | CA2106987A1 Method for manufacturing of subcutaneous capsules |
| 09/24/1992 | DE4108848A1 Wire drawing device with feedback regulation - adjusts pivot position of drawing nozzle to maintain straightness of drawn product |
| 09/23/1992 | EP0504846A1 Die-holder box with rotating die particularly for drawing metal wires |
| 09/16/1992 | CN1018240B Method of manufacturing special pipe for drilling and apparatus therefor |
| 08/26/1992 | CN2113841U Composite die |
| 08/12/1992 | CN2112462U Wire profile thread cold drawing shaping device |
| 08/12/1992 | CN1063476A Ceramic drawing die with precise structure and its production process |
| 07/29/1992 | CN1017603B Supported polycrystalline compacts |
| 07/15/1992 | EP0494799A1 Wire drawing dies |
| 07/12/1992 | CA2059113A1 Wire drawing dies |
| 06/30/1992 | CA1304430C Feed-through element for a vacuum apparatus |
| 06/17/1992 | EP0489729A1 Process for making highly reactive sub-micron amorphous titanium diboride power and products made therefrom. |
| 06/17/1992 | CN1061921A Step-by-step nipping conic mandrel bar |
| 06/09/1992 | US5119661 Apparatus for manufacturing profile pipes used in well construction |
| 05/06/1992 | CN2103385U Taper reducing die |
| 03/25/1992 | CN2099620U High-efficient wire roll die for cold-rolled thread steel wire |
| 02/12/1992 | CN2095719U Metal tool line mark board |
| 01/29/1992 | CN2094404U Driven steel wire rolling mill |
| 01/22/1992 | EP0467634A2 Tool insert |
| 01/22/1992 | EP0467109A1 Method for the cold processing of steel wire of a small section, and device suitable to carry out such method |
| 01/15/1992 | EP0466017A1 Process for hot drawing hollow extruded or drawn aluminium bodies and equipment for application of said process |
| 01/08/1992 | CN2092384U Die arrangement for making the reducing die |
| 12/31/1991 | US5076084 Method of manufacturing long tubes having small diameters |
| 12/03/1991 | US5069055 Automatic plug-inserting apparatus in a pipe-drawing equipment |
| 10/30/1991 | CN1014500B Apparatus and technology for cold-rolling steel reinforcement with thread |
| 10/08/1991 | CA1290124C System for improved flaw detection in polycrystalline diamond |
| 09/18/1991 | CN1013933B Quincunx dies and technology for cold-drawing triangle steel |
| 09/04/1991 | CN1013741B Quincunx dies and technology for cold-drawing flat steel |
| 08/28/1991 | CN2083518U Gradually biting-in taper core rod |
| 07/24/1991 | CN2081325U Three-roller type drawing die device |
| 07/23/1991 | US5033334 Brazing, bonding |
| 07/03/1991 | CN2080003U Composite cold wiredrawing die |
| 05/28/1991 | US5019114 Moulding tool and method of making same |
| 04/03/1991 | EP0419460A1 Integral acoustic emission sensor for manufacturing processes and mechanical components |
| 03/21/1991 | WO1991003423A1 Process for making highly reactive sub-micron amorphous titanium diboride power and products made therefrom |
| 03/20/1991 | CN1049986A Method of manufacturing specialpipe for drilling and apparatus therefor |
| 02/20/1991 | CN1011668B Mould and technique of quincunx cold-draw haxagon steel |
| 02/20/1991 | CN1011667B Die and technique for plum blossom pattern cold-drawing square steel manufacturing |
| 02/13/1991 | EP0412512A1 Method for drawing of wire |
| 02/06/1991 | CN2070650U Dry wire drawing direct cooling die |
| 12/26/1990 | CN1047989A Adhesive clamp bull block |
| 12/19/1990 | CN1047817A Method and apparatus for forming wall ironed articles |
| 12/13/1990 | WO1990014901A1 Method and apparatus for forming wall ironed articles |
| 12/13/1990 | CA2032144A1 Method and apparatus for forming wall ironed articles |
| 12/12/1990 | EP0402006A1 Method and apparatus for forming wall ironed articles |
| 12/05/1990 | CN1047535A Secondary punch heading top for rustless steel pipe base |
| 11/22/1990 | EP0397876A1 Method and device for making profiled pipes used for well construction |
| 11/14/1990 | EP0397515A1 Wire drawing die |
| 11/14/1990 | CN2065513U Y-shape cold drawing steel wire mould |
| 11/06/1990 | CA1275970C Cold drawing technique and apparatus for forming internally grooved tubes |
| 10/16/1990 | US4962658 Method and apparatus for straight drawing a pipe |
| 10/10/1990 | EP0391418A1 A diamond for a wire drawing die, dresser or heat-sink, a process for its manufacture, and a wire drawing die made therefrom |
| 10/03/1990 | EP0390482A1 Method of manufacturing long tubes having small diameters |
| 09/26/1990 | EP0388824A2 Method and apparatus for drawing tubular bodies |
| 09/05/1990 | CN1045040A Apparatus and technology for cold-rolling steel reinforcement with thread |
| 08/14/1990 | US4947669 Apparatus for providing tubing with at least one internal spinal fin |
| 08/09/1990 | DE3903398A1 Drawing die and method for the use thereof |
| 08/08/1990 | EP0381116A2 Method and apparatus for shaping metal tubes into conical or tapering bodies |
| 08/02/1990 | CA2007577A1 Process and machine for the forming of metal tubes into conical or tapered bodies |
| 05/31/1990 | WO1990005598A1 Method and device for making profiled pipes used for well construction |
| 05/22/1990 | US4926668 Automatic die box positioning for drawblock |
| 05/02/1990 | CN2056614U Cold drawn forming screw-thread steel mould |
| 04/11/1990 | CN2055752U Flower-drum type mould for cold drawing of steel pipes |
| 04/04/1990 | EP0362055A1 Method and installation for manufacturing smooth steel wire with a small cross section |
| 03/21/1990 | CN1040523A Quincunx dies and technology for cold-drawing flat steel |
| 03/21/1990 | CN1040522A Quincunx dies and technology for cold-drawing triangle steel |
| 03/21/1990 | CN1007214B Mfg. of oriening-helix seamless steel-pipe used for rocket guns |
| 02/07/1990 | EP0353324A1 Method for the straight drawing of tubes, and device for carrying out the method |
| 02/07/1990 | CN2052310U V-shaped wiredrawing machine |
| 02/07/1990 | CN1006690B 拔丝机 Wire drawing machine |
| 01/02/1990 | CA1264154A1 Wire drawing method and apparatus |
| 12/28/1989 | WO1989012528A1 Integral acoustic emission sensor for manufacturing processes and mechanical components |
| 12/13/1989 | CN1006044B Techniaue of drawing die insert welding with natural diamond |
| 12/05/1989 | US4884430 Filament drawing machine |
| 11/23/1989 | EP0342642A1 Fabrication method of a work piece from a long blank or an intermediate product |
| 11/08/1989 | EP0340747A2 Method of and device for improving the coating quality of bar-shaped metallic products |
| 10/31/1989 | US4876869 Inner grooving process for a metallic tube |
| 10/11/1989 | EP0336189A2 Application of a wire drawing tool of silicon carbide |
| 10/10/1989 | US4872333 Thermal stable diamond compacts |
| 10/04/1989 | CN1035965A Die and technique for plum blossom pattern cold-drawing square steel manufacturing |
| 09/20/1989 | CN1035627A Mould and technique of quincunx cold-drawn haxagon steel |
| 09/19/1989 | US4866966 Method and apparatus for producing bypass grooves |
| 08/15/1989 | US4856703 Method for drawing seamless metal tubing particularly copper tubing under inclusion of a floating mandrel and a diameter reducing die |
| 08/08/1989 | US4854148 Cold drawing technique and apparatus for forming internally grooved tubes |
| 07/11/1989 | US4846392 Continuously variable speed, die-drawing device and process for metal, composites, and the like, and compositions therefrom |
| 07/04/1989 | US4843696 Electrical wire through reshaping means |
| 06/06/1989 | US4837089 High density boron nitride and diamond bonded to cement or metal by amorphous metal |
| 05/31/1989 | EP0317905A2 Method of drawing weldless tubes |
| 05/03/1989 | DE3821362C1 Apparatus for smoothing a mandrel bar |
| 04/11/1989 | US4819471 Pilger die for tubing production |