| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 10/24/2012 | CN101749323B Method for manufacturing steel ball for fan bearing |
| 10/24/2012 | CN101660072B Aluminum alloy for argon-arc-welded aluminum-plastic composite pipe and method for preparing aluminum alloy plate |
| 10/23/2012 | US8296081 Method for provision and utilization of material information regarding steel sheet for shipping |
| 10/23/2012 | US8293167 Surface treatment of metallic articles in an atmospheric furnace |
| 10/23/2012 | US8293028 Method for carburizing steel components |
| 10/18/2012 | WO2012141405A1 Three-dimensional curved surface processing apparatus for thick plate using high frequency induction heating by controlling automatic precise positioning of coil |
| 10/18/2012 | WO2012140550A1 Alloy, magnet core and process for producing a strip made of an alloy |
| 10/18/2012 | WO2012140103A1 Method for producing a single-piece rotor portion and single-piece rotor portion |
| 10/18/2012 | WO2012139770A1 Hot formable strip, sheet or blank, process for the production thereof, method for hot forming a product and hot formed product |
| 10/18/2012 | WO2012139769A1 Hot formable strip, sheet or blank, process for the production thereof, method for hot forming a product and hot formed product |
| 10/18/2012 | DE102011002003A1 Gear rack, useful for a steering gear of a motor vehicle e.g. a car, comprises a gearing, and a near-surface hardened zone formed in the gearing, where the gearing comprises a gearing head and gearing flanks |
| 10/18/2012 | DE102007020027B4 Behandelter austenitischer Stahl, nitrierter austenitischer Stahl, aufgekohlter austenitischer Stahl, sowie ein Verfahren zum Behandeln eines austenitischen Stahls Treated austenitic steel, nitrided austenitic steel, carburized austenitic steel, and a method for the treatment of an austenitic steel |
| 10/17/2012 | EP2511386A2 Case-hardening method of processing stainless steel and steel article |
| 10/17/2012 | EP2511385A1 Mist cooling apparatus, heat treatment apparatus, and mist cooling method |
| 10/17/2012 | EP2511022A2 Coin assembly, medal assembly, and manufacturing method of coin assembly and medal assembly |
| 10/17/2012 | CN202492549U Device for ductile iron pipe annealing furnace |
| 10/17/2012 | CN202492547U Vacuum annealing furnace |
| 10/17/2012 | CN202492546U Novel heat treatment quenching device |
| 10/17/2012 | CN202492545U Water-bath quenching unit for steel wire online normal-temperature electrolytic phosphating pretreatment |
| 10/17/2012 | CN202492544U Heat treatment equipment |
| 10/17/2012 | CN202492543U Roller way quenching tool for small-diameter pivoting support inner ring |
| 10/17/2012 | CN202492542U Quenching tool for raceway of small-diameter slewing bearing outer circle |
| 10/17/2012 | CN202492541U High frequency annealing device |
| 10/17/2012 | CN102741957A Amorphous core annealing method |
| 10/17/2012 | CN102741432A Stainless steel having local variations in mechanical resistance |
| 10/17/2012 | CN102737829A Heat treatment process of low-loss amorphous alloy iron core for transformer |
| 10/17/2012 | CN102735058A Heat treatment furnace |
| 10/17/2012 | CN102734577A Flange |
| 10/17/2012 | CN102734362A Method for manufacturing high-strength and high-plasticity spring by using 60Si2CrVA spring steel |
| 10/17/2012 | CN102732821A Free-cutting steel part and manufacturing method thereof |
| 10/17/2012 | CN102732819A Nitridation quenching process based on vacuum carburization machine |
| 10/17/2012 | CN102732810A Heavy-gauge hydrogen steel plate and its production method |
| 10/17/2012 | CN102732807A Bainitic steel for petroleum drilling elevator, and preparation method thereof |
| 10/17/2012 | CN102732792A Steel with thickness no lower than 100mm used in vessel in hydrogen environment, and production method thereof |
| 10/17/2012 | CN102732783A H2S corrosion-resistant steel and preparation method thereof |
| 10/17/2012 | CN102732771A Ferroalloy material for producing golf club ball |
| 10/17/2012 | CN102732711A Method for removing intractable mixed crystal in medium-carbon low-alloy structural steel |
| 10/17/2012 | CN102732710A Heat treatment method of steel plate with large thickness |
| 10/17/2012 | CN102732709A Steel coil preheating device |
| 10/17/2012 | CN102732706A Spot annealing unit for large swaging weldment and annealing method thereof |
| 10/17/2012 | CN102732705A Heat treatment method of ball cage for drive shaft |
| 10/17/2012 | CN102732704A Device for removing wrappage on steel surface |
| 10/17/2012 | CN102732703A Method for improving strength of work piece formed by reforming austenitic stainless steel |
| 10/17/2012 | CN102732702A Induction hardening device for automobile turbine wheel shaft sleeve |
| 10/17/2012 | CN102732701A Method for carrying out quenching on bimetal tube with outer low-carbon steel layer and inner high-carbon-chromium bearing steel layer |
| 10/17/2012 | CN102732700A Air pipeline apparatus connected to combustion nozzle |
| 10/17/2012 | CN102732699A Heat treatment process for powder part |
| 10/17/2012 | CN102732698A Method for preventing supporting plate nut flaring from cracking |
| 10/17/2012 | CN102732697A Method for refining 1Cr10Co6MoVNbN stainless steel forging grains |
| 10/17/2012 | CN102732696A Normalization heat treatment method of heavy-gauge low-alloy steel plates |
| 10/17/2012 | CN102732695A Metal surface laser processing method in liquid medium |
| 10/17/2012 | CN102732694A Trolley-type heat treatment furnace |
| 10/17/2012 | CN102732693A Side plate of trolley-type heat treatment furnace |
| 10/17/2012 | CN102732692A Furnace door electric wheel assembly |
| 10/17/2012 | CN102732691A Furnace door electric wheel assembly |
| 10/17/2012 | CN102732690A Trolly-type heat treatment furnace |
| 10/17/2012 | CN102732689A Trolly-type heat treatment furnace |
| 10/17/2012 | CN102732688A Walking mechanism of trolly-type heat treatment furnace |
| 10/17/2012 | CN102732687A Steel pipe connection component of trolly-type heat treatment furnace |
| 10/17/2012 | CN102732674A Production method of heavy-gauge large-single-weight low-alloy high-strength structural steel plates |
| 10/17/2012 | CN102729321A Environment-friendly and energy-saving baking-free brick molding template and surface strengthening treatment process thereof |
| 10/17/2012 | CN102728772A Method for forging large ship crank shaft |
| 10/17/2012 | CN102728754A Reinforced control cooling method for non-tempered steel forging |
| 10/17/2012 | CN102728687A Immersion type hot stamping forming machine and immersion type composite hot stamping forming quenching technology |
| 10/17/2012 | CN102728652A Manufacturing method of dual-metal seamless steel pipe with outer-layer low-carbon steel and inner-layer bearing steel |
| 10/17/2012 | CN102728642A Method for preparing high-precision large-cantilever radiator section bar by utilization of umbrella-shaped die |
| 10/17/2012 | CN102359691B TA9 expansion joint manufacturing method |
| 10/17/2012 | CN102260840B Short-flow efficient production method for brass tubes |
| 10/17/2012 | CN102041359B Gas curtain protected laser heat treatment machining head |
| 10/17/2012 | CN102021279B Novel metallurgical roll |
| 10/17/2012 | CN101899627B Abrasion-resistant alloy cast steel and smelting and heat treatment processes |
| 10/17/2012 | CN101802230B A strip of steel having a variable thickness in length direction |
| 10/17/2012 | CN101775481B Strip material treatment apparatus |
| 10/11/2012 | WO2012136897A1 Method for producing a steel product from steel billet, a steel product and a microstructure of a steel |
| 10/11/2012 | DE102011016260A1 Vorrichtung und Verfahren zum Erwärmen von Metallbolzen Device and method for heating metal bolt |
| 10/10/2012 | EP2508829A1 Method and industrial furnace for use of a protective gas as a heating gas |
| 10/10/2012 | EP2508628A2 Heating apparatus, heat treatment apparatus, and heating method |
| 10/10/2012 | CN202485414U Multifunctional heat treatment pit furnace |
| 10/10/2012 | CN202482390U Non-standard bell-type furnace provided with base heating device |
| 10/10/2012 | CN202482389U Nonstandard cover type furnace with top forced convection structure |
| 10/10/2012 | CN202482386U Atmosphere isolation device for horizontal annealing furnace |
| 10/10/2012 | CN202482382U Strip threading rod for horizontal annealing furnace |
| 10/10/2012 | CN202482381U Swinging material feeding roller bed of quenching device |
| 10/10/2012 | CN202482380U Radial wheel mechanism of quenching device |
| 10/10/2012 | CN202482379U Pinch roller mechanism for quenching device |
| 10/10/2012 | CN202482376U Heat treatment turnover tray of differential front shell |
| 10/10/2012 | CN202482374U Well-type large-capacity magnetic heat treatment furnace |
| 10/10/2012 | CN202482372U Bevel gear quenching die |
| 10/10/2012 | CN202482371U Thick steel plate quenching machine with novel structure |
| 10/10/2012 | CN202482370U Mobile quenching car |
| 10/10/2012 | CN202482369U Quenching transferring device |
| 10/10/2012 | CN202482368U Balling thread stand |
| 10/10/2012 | CN202482367U Improved car-bottom furnace normalization cooling air flue |
| 10/10/2012 | CN202482366U High-temperature furnace roller without being supported by bearing seat |
| 10/10/2012 | CN202482365U Annealing furnace supporting device |
| 10/10/2012 | CN202482364U Anti-deformation carbon sleeve roller under high temperature |
| 10/10/2012 | CN202482363U Steel ball tempering equipment |
| 10/10/2012 | CN202482362U Feed rack for well type longitudinal magnetic field heat treatment furnace |
| 10/10/2012 | CN202482361U Well type transverse magnetic field applied heat treatment furnace |
| 10/10/2012 | CN202482360U Well type external longitudinal magnetic field heat treatment furnace |