| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 06/10/2009 | DE102007062664B3 Verfahren zum Herstellen von Bauteilen aus austenitisch-ferritischem Gusseisen und derartiges Bauteil A process for producing components made from austenitic-ferritic cast iron and such a component |
| 06/10/2009 | CN201254591Y Novel hardening furnace |
| 06/10/2009 | CN201254590Y Novel hardening furnace |
| 06/10/2009 | CN201254589Y Steel rapid heating apparatus |
| 06/10/2009 | CN101451180A Rotary firebox type isothermal quench integrated apparatus |
| 06/10/2009 | CN100497663C Metal part cooling method, metal part producing method, and metal part cooling device |
| 06/10/2009 | CN100497662C Method of controlling photospheric facula position when laser hardening on side curved surface |
| 06/10/2009 | CN100496787C Method of making a metallic thin wire |
| 06/09/2009 | US7544410 Hard metal or cermet body and method for producing the same |
| 06/09/2009 | US7544258 Method of fabricating pressed components |
| 06/09/2009 | US7544256 Uniform and consistent; reflectivity |
| 06/04/2009 | WO2009070078A1 A method of producing a painted steel sheet product of high strength |
| 06/04/2009 | WO2009069829A1 Hearth roll for continuous annealing furnace and process for production of the same |
| 06/04/2009 | WO2009069547A1 Machine component and rolling bearing |
| 06/04/2009 | WO2009068644A1 Process of thermal treatment of rails and device thereof |
| 06/04/2009 | WO2009067976A1 Method for producing a shaped component comprising at least two joining areas having different ductility |
| 06/04/2009 | WO2009067773A1 An axle from a seamless tube for railroad vehicles, and a process for manufacturing an axle from a seamless steel tube for railroad vehicles |
| 06/04/2009 | US20090139616 Method and Device for the Continuous Creation of a Bainite Structure in a Carbon Steel, Particularly in a Strip Steel |
| 06/04/2009 | US20090139615 Leaf spring material and manufacturing method thereof |
| 06/04/2009 | DE102007056502A1 Verfahren und Vorrichtung zum Aufbau von Eigenspannungen in einem metallischen Werkstück Method and apparatus for setting up of residual stresses in a metal workpiece |
| 06/04/2009 | CA2707502A1 An axle from a seamless tube for railroad vehicles, and a process for manufacturing an axle from a seamless steel tube for railroad vehicles |
| 06/03/2009 | EP2065482A1 Works for enameling and enameled products |
| 06/03/2009 | EP1599885A4 Induction heat treatment of complex-shaped workpieces |
| 06/03/2009 | CN201250251Y Vacuum degreasing sintering-quenching integrated furnace |
| 06/03/2009 | CN101448963A Process for the heat treatment of steel strips in a continuous furnace with oxy-fuel burners |
| 06/03/2009 | CN101445861A Air-cooling equipment for external-circulation multi-heat exchanger furnace |
| 06/03/2009 | CN100494416C Thermal treatment vacuum furnace material transferring device |
| 06/03/2009 | CN100494415C Method for manufacturing wire drawing machine drum |
| 06/02/2009 | US7540993 Continuous process for production of steel part with regions of different ductility |
| 06/02/2009 | CA2455072C Electromagnetic method and apparatus for treatment of engineering materials, products, and related processes |
| 05/28/2009 | US20090134138 Method of supporting a work piece |
| 05/28/2009 | US20090133785 Leaf spring material and manufacturing method thereof |
| 05/28/2009 | DE202004021580U1 Vorrichtung zur Wärmebehandlung mit Hilfe einer Induktionsspule und dadurch bearbeitete Teile An apparatus for heat treatment by means of an induction coil and thereby machined parts |
| 05/28/2009 | DE102007055378A1 Verfahren und Vorrichtung zur Randschichtverfestigung von Bohrungen und Bohrungsanordnung mit randschichtverfestigter Bohrung Method and apparatus for edge layer hardening of bores and bore arrangement with boundary layer solidified bore |
| 05/27/2009 | EP2062987A1 Heat form press |
| 05/27/2009 | EP2062664A1 Method for manufacturing a hardened sheet metal profile |
| 05/27/2009 | EP2061605A2 Cryogenic nozzle |
| 05/27/2009 | EP1177709B1 Induction heat treatment of complex-shaped workpieces |
| 05/27/2009 | CN201246963Y Explosion-proof hydrogen protection reduction heating furnace |
| 05/27/2009 | CN201246170Y Laser reinforced stainless steel upright post |
| 05/27/2009 | CN201245690Y Chain drive mechanism of roller-hearth furnace |
| 05/27/2009 | CN201245688Y Automatic high-frequency quenching machine |
| 05/27/2009 | CN201245687Y Flow capacity increasing device for spray copper plate heat treatment remelting gas |
| 05/27/2009 | CN201245686Y Parts quenching auxiliary device |
| 05/27/2009 | CN201245685Y Upper-lower layer heat exchange type continuous annealing furnace |
| 05/27/2009 | CN201245684Y Trolley type gas heat processing furnace |
| 05/27/2009 | CN101440724A Roller member and method for producing the same |
| 05/27/2009 | CN101440459A Cast steel material for mine support and preparation thereof |
| 05/27/2009 | CN101440428A Production method of seamless stainless steel tube for high-pressure boiler |
| 05/27/2009 | CN101440427A Steel pipe normalizing method |
| 05/27/2009 | CN101440426A Surface quenching heat treatment method for railway wagon heavy duty vehicle coupler body and drawbar terminal pin hole |
| 05/27/2009 | CN101440425A Vacuum chamber of double-deck furnace single chamber structure |
| 05/27/2009 | CN101440423A Automatic control furnace for vacuum heat treatment |
| 05/27/2009 | CN100493272C Salt bath furnace electrode heat resistant material |
| 05/27/2009 | CN100491585C Preparation method of ultrathin, large-size, high-silicon silicon steel sheet by electron beam physical vapor deposition |
| 05/27/2009 | CN100491577C FeZrNdYB nano block alloy having hard magnetism and method for preparing same |
| 05/27/2009 | CN100491576C Cold extruding die steel and heat treatment technique thereof |
| 05/27/2009 | CN100491573C Microalloy cast steel in low carbon, and preparation method |
| 05/27/2009 | CN100491548C Method of controlling temperature of high-temperature ring annealing furnace |
| 05/27/2009 | CN100491547C High-temperature ring annealing furnace information control system and information control center server |
| 05/27/2009 | CN100491545C Correction method of thin plane gasket after heat treatment |
| 05/26/2009 | US7537727 Low to medium carbon content and high ductility steel composition with a relatively low nickel content; high performance characteristics; lower production costs; thermally processing comprising normalizing, austenitizing, oil quenching and tempering; weldable bomb casings |
| 05/26/2009 | US7537664 Laser-produced porous surface |
| 05/26/2009 | CA2372388C Hot-rolled steel sheet, cold-rolled steel sheet and hot-dip galvanized steel sheet excellent in strain age hardening property, and manufacturing method thereof |
| 05/22/2009 | WO2009065113A2 Quenching methods and apparatus |
| 05/22/2009 | WO2009063909A1 Method of heat-treating steel, process for producing machine part, and machine part |
| 05/22/2009 | WO2009063753A1 Method for heat treatment of columnar component |
| 05/22/2009 | WO2009062486A1 Process for hardening groove flanks of the annular groove of a steel piston by means of a laser beam |
| 05/21/2009 | US20090130557 Positive electrode collector for lead acid storage battery and method for producing the same |
| 05/21/2009 | US20090130483 Iron-and nickle-based brazing foil and method for brazing |
| 05/21/2009 | US20090129966 Iron-based rare-earth-containing nanocomposite magnet and process for producing the same |
| 05/21/2009 | US20090126838 Uniform heat treatment process for hardening steel |
| 05/21/2009 | US20090126835 Quenching methods and apparatus |
| 05/21/2009 | US20090126447 Thermoforming press |
| 05/20/2009 | EP2059358A1 Vapor-reinforced expanding volume of gas to minimize the contamination of products treated in a melting furnace |
| 05/20/2009 | EP2059355A1 Method and tool for hot forming a metal workpiece |
| 05/20/2009 | DE102008048432A1 Hardening hollow component of high carbon steel, e.g. vehicle drive shaft, by carburizing, hardening and tempering, provides high static and dynamic strength |
| 05/20/2009 | DE102007054736A1 Verfahren zum Härten von Nutflanken der Ringnut eines Stahlkolbens A method for curing of the groove flanks of the annular groove of a steel piston |
| 05/20/2009 | CN201241177Y Refusion heating device for aluminum alloy thixotropy machining |
| 05/20/2009 | CN201241176Y Energy-saving type middle heat processing furnace |
| 05/20/2009 | CN201241175Y Double-groove quick moving interchange quenching device for continuous furnace |
| 05/20/2009 | CN201241174Y Folding type seamless circular washer |
| 05/20/2009 | CN201241173Y Flue gas utilizing equipment of annealing furnace |
| 05/20/2009 | CN201241172Y Trolley type heating furnace operating system |
| 05/20/2009 | CN101437975A Process for manufacturing steel sheet having very high strength, ductility and toughness characteristics, and sheet thus produced |
| 05/20/2009 | CN101435484A Martensite stainless steel chain and application on sewage treating apparatus |
| 05/20/2009 | CN101435057A Novel low-cost free-cutting stainless steel 303B and manufacturing process thereof |
| 05/20/2009 | CN101435056A Novel low-cost free-cutting stainless steel 303C and manufacturing process thereof |
| 05/20/2009 | CN101435018A Hot dip galvanizing annealing process and high temperature annealing furnace |
| 05/20/2009 | CN101435015A Trolley type annealing furnace |
| 05/20/2009 | CN101435013A Preparation technique of flat shovel teeth material |
| 05/20/2009 | CN101435012A Heat treatment equipment and process for alloy casting |
| 05/20/2009 | CN101435010A Carring bar intermediate frequency induction hardening heat treatment process and intermediate frequency quenching machine tool |
| 05/20/2009 | CN101434025A Method for processing crankshaft capable of improving torques of winch and crank-pin |
| 05/20/2009 | CN101433990A Overlaying welding method of large area carbide alloy of workpiece wear layer |
| 05/20/2009 | CN100490029C Composite powder for magnetic powder core and preparation process for magnetic powder core |
| 05/20/2009 | CN100489139C High-strength abrasion-proof cast steel lining board and manufacturing method thereof |
| 05/20/2009 | CN100489123C Method and apparatus for continuous heat treatment for long bar by inducted heating |
| 05/20/2009 | CN100489120C Gas integral heat treating method and device for large-scale pressure container |
| 05/20/2009 | CN100489119C Integral heat treatment method for fixed pipe plate-type heat exchanger |