| Patents for B21J 1 - Preparing metal stock (1,586) |
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| 07/09/2008 | CN101214602A Method of preparing coupler yoke frame |
| 07/09/2008 | CN101214600A Magnesium alloy compositely forming method |
| 07/09/2008 | CN101214495A Method for producing aluminum alloy ultra-thick plate |
| 07/02/2008 | CN101210302A Middle and low carbon bainite high-strength high-ductility steel and manufacturing method thereof |
| 07/02/2008 | CN101209484A Method and equipment for reducing generation of oxide scale film while heat temperature forging processing metal, in particular steel blank |
| 06/26/2008 | WO2008074279A1 Method for the production of a forged part, forged part, and forging die |
| 06/25/2008 | CN101205595A Tough ultra-strength stainless steel and method for manufacturing the same |
| 06/25/2008 | CN101205594A X80 steel made pipe fittings and manufacture technique thereof |
| 06/25/2008 | CN101204775A Double metal material cold covering manufacturing method of thickness more than 2.5mm |
| 06/24/2008 | US7389662 Method and apparatus for self indexing portable automated tenon peening |
| 06/18/2008 | CN101199979A Forging method of large scale conical shell |
| 06/18/2008 | CN100395052C Model and method for liquid state formation of aluminium hub disc for special vehicle |
| 06/11/2008 | CN101198424A Method and apparatus for upsetting |
| 06/11/2008 | CN100394075C Method for processing gear ring blank for automobile synchronizer |
| 06/04/2008 | EP1927413A1 Press forging method |
| 06/04/2008 | CN201067784Y Cooler for forging demoulding |
| 06/04/2008 | CN101190453A 压力锻制方法 Pressure Forged method |
| 06/04/2008 | CN100391647C Hot press-forging formation mould for magnesium alloy thin shells |
| 05/28/2008 | EP1925837A1 Uniform speed universal joint |
| 05/28/2008 | CN101185955A Steel ball cold heading technique and steel ball cold header |
| 05/28/2008 | CN101185954A Aluminum alloy special-shaped member equivalent temperature precision forging technique method |
| 05/28/2008 | CN101185953A Method for using as-cast state magnesium alloy to process superplastic forging formation |
| 05/28/2008 | CN100389902C Method for manufacturing formed article made from metal based composite material |
| 05/21/2008 | CN101181730A Drill pipe joint precision die forging process |
| 05/21/2008 | CN100389211C Heat treatment device used for gear forging |
| 05/14/2008 | CN201058360Y Forging artifactitious automatic sprayer for cooling |
| 05/14/2008 | CN101177768A Method for preparing niobium sheet metal strip |
| 05/14/2008 | CN101177749A Brass processing method |
| 05/14/2008 | CN101176906A Method for forging cake series forgeable piece with different directions |
| 05/14/2008 | CN101176904A Method for shaping hollow iron bannister |
| 05/07/2008 | CN201055897Y Frequency induction single heat forging line for long bar material |
| 05/07/2008 | CN201055896Y Hot forging process line |
| 05/07/2008 | CN100386166C One-forge-to-multipiece superplastic forming device for amorphous alloy precise parts |
| 04/30/2008 | CN101169984A Million-kilowatts-class nuclear power pressure container safe end manufacture process |
| 04/30/2008 | CN101168827A Method for heating light metal blank |
| 04/30/2008 | CN101168824A Leadless easy-cutting steel for medium-hard tooth face heavy load gear wheel and preparation method thereof |
| 04/30/2008 | CN101168822A High ductility nickel-free ferrite stainless steel and manufacturing method thereof |
| 04/30/2008 | CN101168228A Method for manufacturing high-strength abrasion-proof insert die |
| 04/30/2008 | CN101168224A Heating and forming method for cold bending sectional steel and cold bending sectional steel produced by the same |
| 04/23/2008 | CN100382914C Equipment for high efficiency drop-forging forming precision parts made of non-crystalline alloy |
| 04/17/2008 | WO2008044564A1 High-strength process material, method of producing the same and production apparatus therefor |
| 04/16/2008 | EP1911536A1 Hot forging equipment |
| 04/15/2008 | CA2337474C Spectacle frames, unalterable at different temperatures and the process for making them |
| 04/10/2008 | WO2008041406A1 Blank of bearing ring member, process for manufacturing the same, process for manufacturing bearing ring member, and bearing |
| 04/09/2008 | CN101157997A Preparation method of wolfram filament for halogen tungsten lamp |
| 04/09/2008 | CN101157172A Method of preparing medical high-precision titanium and titanium alloy rod bar |
| 04/09/2008 | CN100379884C Method for producing ultra high temperature bainitic steel in ultralow carbon |
| 04/02/2008 | EP1905849A1 Process for producing bearing device for wheel |
| 04/02/2008 | CN101153376A Method for manufacturing high-vanadium, high-cobalt high speed steel |
| 04/02/2008 | CN101152655A Steel blank heating device |
| 03/26/2008 | EP1901865A1 Upsetting method and upsetting apparatus |
| 03/26/2008 | CN101148739A Middle-chromium rare earth-containing high-purity ferrite wrinkle-resistant stainless steel and manufacturing method thereof |
| 03/26/2008 | CN101148717A High-performance yttrium-base heavy rare earth copper alloy die material and preparation method thereof |
| 03/26/2008 | CN101147951A Rolling preparation method for thick-walled and thin-bottomed basin parts |
| 03/26/2008 | CN101147950A Difficult deformation high temperature allay composite covering method |
| 03/19/2008 | CN101144140A Flying shear blade and preparation method thereof |
| 03/19/2008 | CN101143380A Method for processing high-temperature alloy die forging piece with central hole |
| 03/12/2008 | CN101139670A Technique for processing titanium alloy sheet material |
| 03/05/2008 | EP1656226A4 Scallop output shaft tools |
| 03/05/2008 | CN101134224A Large-scale roller press squeeze roll forging technique |
| 02/27/2008 | CN101130202A Method for smithing aluminium alloy wheel hub of vehicle and smithing mold thereof |
| 02/27/2008 | CN101130196A Micro-plastic molding method and apparatus for micro-device |
| 02/27/2008 | CN100371483C Aluminum alloy for plastic working and manufacturing method thereof |
| 02/27/2008 | CN100371129C Technology for forging forming of hook fastener flame of wagon and maould thereof |
| 02/20/2008 | CN201023120Y Thin and long rod tube end stamping and forging front-middle frequency two-stage heating device |
| 02/20/2008 | CN101125402A Method for processing heat coiling spring whose spring wire diameter is 90 millimeter |
| 02/06/2008 | CN101117692A Non-magnetic high-strength stainless steel material and method for manufacturing the same |
| 02/06/2008 | CN101116890A Gas turbine blower impeller isothermy die forging method |
| 01/17/2008 | DE10100868B4 Kaltwalz-Umformmaschine und Werkzeug zum Herstellen von flanschförmigen Erzeugnissen bzw. von Flanschen aus einem zylindrischen Vorprodukt Cold roll forming machine and tool for the manufacture of products flange or flanges of a cylindrical intermediate |
| 01/16/2008 | CN101104895A Method for producing natural bornite products |
| 01/09/2008 | CN101100027A Petroleum drilling rod joint extrusion forming technology method |
| 01/09/2008 | CN101100026A Method for manufacturing steel bar continuous connecting device |
| 01/02/2008 | CN101096743A Super-thick non-hardening plastic mold steel and method for manufacturing the same |
| 01/02/2008 | CN101096741A Rare-earth containing high temperature oxidation resistant ferritic stainless steel and method for preparing same |
| 12/19/2007 | CN101088658A Tool body making process and product |
| 12/19/2007 | CN101088657A Swaging apparatus and process for multicomponent composite tungsten electrode |
| 12/12/2007 | EP1718425B1 Hybrid press for shaping large workpieces |
| 12/11/2007 | CA2463371C Flattened u-bolt and method for making said u-bolt |
| 12/06/2007 | US20070277579 Method And Tool For Closed Die Forging |
| 12/05/2007 | CN101082110A Long-life alloy die-casting module and manufacturing method thereof |
| 12/05/2007 | CN101081426A Flange of wind power generation tower barrel forging shaping process |
| 11/28/2007 | CN101078070A Generator rotor slot wedge manufactured by beryllium-nickel-titanium-copper alloy |
| 11/28/2007 | CN101077560A Forging molybdenum plug and preparation method thereof |
| 11/14/2007 | CN101070223A Heat-processing temperature-cntrolled heat-insulation material, its preparing method and use |
| 11/07/2007 | EP1723028B1 Bicycle seat |
| 11/06/2007 | US7291231 Copper-nickel-silicon two phase quench substrate |
| 10/17/2007 | CN200960531Y Hydraulic equipment processed by fire |
| 10/17/2007 | CN101053887A Inner step profile section ring parts rolling forming method |
| 10/17/2007 | CN100342993C Method for producing circular cog hot forged from generator protective ring and mould |
| 10/16/2007 | US7281402 Method and apparatus for optimizing forging processes |
| 10/10/2007 | CN101049615A Hot extrusion collection molding technique for pipe end of high-pressure straight pipe in fracturing complete sets of equipment in oil-gas field |
| 10/10/2007 | CN100341640C Magnesium alloy lean liquid semi-solid impact extruding shaping technology |
| 10/03/2007 | CN101045239A A hot rolled steel sheet manufacturing apparatus and hot rolled steel sheet manufacturing method |
| 09/19/2007 | EP1835129A2 Aerofoil for a gas turbine engine |
| 09/19/2007 | CN101036931A Method for smithing GH4169 alloy plate shaped forgeable piece in air at an approximately equal temperature |
| 09/13/2007 | DE102006018406A1 Heating process for sheet workpieces intended for press hardening involves taking heat from selected sector of workpiece during heating so that heat there is below setting |
| 09/12/2007 | CN101032733A Producing method of tool noumenon and the products thereof |
| 09/05/2007 | CN101029371A Balancing shaft and its forging method for engine |
| 08/29/2007 | CN101024870A Low-temperature high-strength, high-toughness steel and preparing method therefor |
| 08/29/2007 | CN101024237A Method for making tool body |