| Patents for B21J 13 - Details of machines for forging, pressing, or hammering (6,375) |
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| 05/18/2011 | CN102059307A Lifting mechanism |
| 05/18/2011 | CN101695739B Forging process of large tee and large skew tee |
| 05/17/2011 | US7942030 Shell press, and die assembly and associated method therefor |
| 05/12/2011 | US20110109082 Method and apparatus for cold joining flanges and coupling elements to pipes |
| 05/12/2011 | US20110107810 Method and device for winding metal strip material |
| 05/11/2011 | CN201823868U Hydraulic system of die-forging quick hydraulic lifting device |
| 05/11/2011 | CN201823867U Hot upsetting piece clamp with universal movable bracket |
| 05/11/2011 | CN201823866U Die device |
| 05/11/2011 | CN201823865U Block inserting type forging die |
| 05/11/2011 | CN201823864U Forming die for precision-forging stocks of primary driving teeth |
| 05/11/2011 | CN201823863U Valve body die for four-hole valves |
| 05/11/2011 | CN201823862U Counterdie of valve body die for triporate valve |
| 05/11/2011 | CN201823861U Forging die for hub bolt |
| 05/11/2011 | CN201823860U Mobile workbench of forging hydraulic machine |
| 05/11/2011 | CN1672913B Press for holding and pressing a workpiece |
| 05/11/2011 | CN102049462A Improved structure of forging machine tool C-shaped body |
| 05/11/2011 | CN102049459A Rotary swaging machine |
| 05/11/2011 | CN102049457A Precision forging process for engine connecting rod and precision forging die |
| 05/11/2011 | CN102049456A Multi-ram die forging process method and die for 40Cr-steel frame type parts |
| 05/11/2011 | CN101658914B Surface forging maintenance process of mold for the production of graphite cast iron pipe by centrifugal method |
| 05/04/2011 | CN201815620U Die for forging high-precision crank shaft |
| 05/04/2011 | CN201815619U Forming die for forging thin and short shaft sections at ends of large-sized stepped shaft |
| 05/04/2011 | CN201815618U Precision forging die capable of forging tooth form of straight toothed spur gear |
| 05/04/2011 | CN201815615U Reducing rotary swaging processing device for internal threaded copper pipes |
| 05/04/2011 | CN102041404A Method for preparing low-oxygen titanium-zirconium-molybdenum (TZM) alloy and application |
| 05/04/2011 | CN102041403A Preparation method of low-oxygen MHC alloy and application of low-oxygen MHC alloy |
| 05/04/2011 | CN102041402A Preparation method of low-oxygen molybdenum alloy and application thereof |
| 05/04/2011 | CN102039361A Composite extrusion forge forming method for automobile flange fork |
| 05/04/2011 | CN101690965B Hot extrusion forming process of half-shaft casings and special device |
| 05/04/2011 | CN101569915B Method of controlling shape of internal upset transition zone free surface in oil drill pipe |
| 04/28/2011 | WO2011048754A1 Lubricating oil composition for die forging and die forging device |
| 04/27/2011 | CN201807696U Automobile bilateral knuckle arm double forging mould |
| 04/27/2011 | CN201807695U Extra-high-voltage composite insulator grooved hardware forging mould |
| 04/27/2011 | CN201807694U Wrist-arm hardware fitting base forging mould for parts of electrified railway contact network |
| 04/27/2011 | CN201807693U Forging die for crankshaft |
| 04/27/2011 | CN201807692U Vertical type cold forging forming die of buttonhead of electric power fitting |
| 04/27/2011 | CN102029352A Method for manufacturing pressboard for rail wagon |
| 04/27/2011 | CN102029349A Forging device for middle lug boss of large gear forging |
| 04/27/2011 | CN102029348A Multi-way die forging process method and mould for 40Cr steel case type parts |
| 04/27/2011 | CN102029345A V-shaped anvil for 2,000T fast forging machine |
| 04/27/2011 | CN102029344A Shoulder core forging die for 3T/5T swager |
| 04/27/2011 | CN102029343A Die for bowl-shaped forging |
| 04/26/2011 | US7930954 Method for producing forging die, forging die and forged article |
| 04/21/2011 | US20110089153 combination structure of bottom of pan (kettle) body and heating apparatus |
| 04/20/2011 | CN201799563U Support device for pressing large screws |
| 04/20/2011 | CN201799557U Apparatus for compensating mechanical flexibility for bender |
| 04/20/2011 | CN201799556U Tool for increasing die forging performances of friction press |
| 04/20/2011 | CN201799555U Large screw forging die |
| 04/20/2011 | CN201799554U Improved forming sleeve mold |
| 04/20/2011 | CN102019713A Simple press air cushion |
| 04/20/2011 | CN102019712A Small-sized large-thrust ejector for press |
| 04/20/2011 | CN102019711A Novel press machine air cushion structure |
| 04/20/2011 | CN102019654A Die |
| 04/20/2011 | CN102019342A Novel mechanism for forging and stamping large-thrust ejector |
| 04/20/2011 | CN102019341A A servo-actuated upender |
| 04/20/2011 | CN102019340A Claw beam lifting mechanism for forging manipulator |
| 04/20/2011 | CN102019339A Electromagnetic die punching frame |
| 04/20/2011 | CN102019338A Punching method for forming integrated top cover |
| 04/20/2011 | CN102019337A Rolling method for shaping integral top cover |
| 04/20/2011 | CN102019336A Die forging shaping technology specially used for manufacturing petroleum drilling machine elevator movable wing plates |
| 04/20/2011 | CN102019335A Cold forging processing method of hardened and tempered structural steel |
| 04/19/2011 | US7927221 Tool and method for the production of a thread |
| 04/19/2011 | US7926694 Apparatus for vertically manufacturing poles and columns |
| 04/19/2011 | US7926693 Centering pin with a wear-resistant sintered body and metal tip |
| 04/14/2011 | WO2011042859A2 Machine for hot-pressing of metal articles |
| 04/14/2011 | WO2011042408A1 Forming machine for forging, in particular stretch-forging, workpieces |
| 04/14/2011 | US20110083488 Big crimpin crimper |
| 04/13/2011 | CN201791892U Split upper anvil stand |
| 04/13/2011 | CN201791891U Split type spherical upper anvil block |
| 04/13/2011 | CN201791890U Tooth profile die and gear fine forging die having same |
| 04/13/2011 | CN201791889U Forging mandril with brush |
| 04/13/2011 | CN201791888U Forging core rod |
| 04/13/2011 | CN201791887U Precise-forging upsetting and punching progressive die for disc type parts |
| 04/13/2011 | CN201791886U Double-purpose supporting ring device used on large-sized forging hydraulic machine |
| 04/13/2011 | CN201791885U Forging pre-upset die clamp |
| 04/13/2011 | CN201791884U Device for improving performance of friction press |
| 04/13/2011 | CN102009490A Structure of material beating mechanism of pressure machine |
| 04/13/2011 | CN102009118A Drill rod thickening die |
| 04/13/2011 | CN101450367B High-stability heavy-load clamp |
| 04/13/2011 | CN101384383B Method for producing a wheel disc |
| 04/13/2011 | CN101262965B Process for producing molded article with undercut, forging apparatus therefor |
| 04/06/2011 | CN201784198U Long X-type precision guide slider |
| 04/06/2011 | CN201783612U Back ejecting mechanism of forged part forming machine |
| 04/06/2011 | CN201783611U Spring anvil |
| 04/06/2011 | CN201783610U Cold extrusion female die for housing of accumulator |
| 04/06/2011 | CN201783609U Energy accumulator housing backward-extrusion female die |
| 04/06/2011 | CN201783608U Special die for die forging of last-stage blades of large-sized half-speed nuclear steam turbine |
| 04/06/2011 | CN201783607U Mincing knife for free forging of big forged piece |
| 04/06/2011 | CN201783606U Safety device for back-supporting discharging mechanism of forging part forming machine |
| 04/06/2011 | CN102001194A Structure of transverse beating stick of buffer type press |
| 04/06/2011 | CN102001191A Buffer noise reduction type air cushion of pressing machine |
| 04/06/2011 | CN102000759A Combined forging die and manufacturing method thereof |
| 04/06/2011 | CN102000758A Falling round die for forging hydraulic press |
| 04/06/2011 | CN102000757A Rapid jointing and separating mechanism for press machine clutch |
| 04/06/2011 | CN102000755A Reducing rotary forging method for internal thread copper pipe |
| 03/30/2011 | CN201776387U Anvil stand for forging and stamping curving forgings |
| 03/30/2011 | CN201776386U Anvil block with convenient positioning function |
| 03/30/2011 | CN201776385U Convenient-to-dismount anvil block |
| 03/30/2011 | CN201776384U Wind power shaft forging die |
| 03/30/2011 | CN201776383U Forging die for forging wheel core forging stock |