| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 05/07/2008 | CN101173363A Technique for nitrogen treatment of diesel cylinder cover |
| 05/07/2008 | CN101173343A High-strength abrasion-proof cast steel lining board and manufacturing method thereof |
| 05/07/2008 | CN101172316A High temperature electron beam welding |
| 05/07/2008 | CN100386448C Method for mormalizing cooling of forged steel pieces |
| 05/06/2008 | US7368077 Induction quenching installation, in particular for fabricating suspension components |
| 05/06/2008 | US7367208 Coil winding method for metal in bars |
| 05/06/2008 | CA2324603C Steel material and method for its manufacturing |
| 05/02/2008 | WO2008050800A1 Sheave member for belt continuously variable transmissions and method of manufacturing it |
| 05/02/2008 | WO2008050563A2 Frictionally press-bonded member |
| 05/02/2008 | WO2008049513A1 Process and apparatus for hardening the surface layer of components having a complicated shape |
| 05/02/2008 | CA2609609A1 Method for supplying cover gas |
| 05/01/2008 | US20080099107 Sheave member for belt-type continuously variable transmission and method of manufacturing the same |
| 04/30/2008 | EP1915544A1 Antifriction mounting |
| 04/30/2008 | CN201053022Y Steel cylinder normalizing furnace |
| 04/30/2008 | CN101168826A High-performance low-carbon bainite construction steel and producing method thereof |
| 04/30/2008 | CN101168824A Leadless easy-cutting steel for medium-hard tooth face heavy load gear wheel and preparation method thereof |
| 04/30/2008 | CN101168798A High-speed tool steel wire vacuum heat treatment technique |
| 04/30/2008 | CN101168795A Carburization quenching method for round hole thin wall work-piece |
| 04/30/2008 | CN101168794A Long thick wall petroleum drilling and mining steel pipe heat treatment technique |
| 04/30/2008 | CN101168792A Applying method of temperature section timing oil quenching in wear-resisting material heat treatment |
| 04/30/2008 | CN101168791A Top-feeding pre-evacuating heat treatment furnace |
| 04/30/2008 | CN101168790A Oil quenching bath fast cooling device |
| 04/30/2008 | CN101168789A Evacuation gas protection induction heating furnace |
| 04/30/2008 | CN101168788A Method for forging blank heated by salt bath furnace |
| 04/30/2008 | CN101168228A Method for manufacturing high-strength abrasion-proof insert die |
| 04/30/2008 | CN101168183A Gear wheel precision hot rolling extruding and grinding machine and processing method thereof |
| 04/30/2008 | CN100385020C Method for producing helical springs or stabilisers. |
| 04/30/2008 | CN100385019C Process of production and production system of high strength galvannealed steel sheet |
| 04/29/2008 | USRE40263 Pearlitic steel rail having excellent wear resistance and method of producing the same |
| 04/29/2008 | US7365290 Method and device for thin plate article induction heating, and thin plate article |
| 04/29/2008 | US7364629 applying an aqueous slurry or dry coating by electrostatics; annealing separators consisting mainly of alumina on decarburized-annealed sheets having oxidized layers to provide a mirror-like surface after finish-annealing, to decrease iron losses properties; cores of transformers and electric appliances |
| 04/29/2008 | CA2184850C A high temperature process for making an iron-nickel superalloy 706 body |
| 04/24/2008 | WO2008048307A2 Flash tempering process and apparatus |
| 04/24/2008 | WO2008047999A1 Annealing separating agent for grain oriented electrical steel sheet having uniform glass film and excellent magnetic properties and method of manufacturig the same |
| 04/24/2008 | WO2006121817A3 Fluid-cooled duct |
| 04/24/2008 | US20080095657 pearlite-free microstructure, control the microstructure and hardness levels; powertrain gear which can be surface hardened by carburizing or induction hardening; austenitic steel has microstructure containing bainite martensite and/or ferrite |
| 04/23/2008 | EP1914325A1 Continuous heat treatment furnace and utilizing the same, metal pipe and method of heat treatment |
| 04/23/2008 | EP1543170B8 Rapid cooling method for parts by convective and radiative transfer |
| 04/23/2008 | CN101165306A Sucker rod cold-drawing recovery production process |
| 04/23/2008 | CN101165202A High-strength steel with high welding heat influence area toughness and manufacturing method thereof |
| 04/23/2008 | CN101165201A High-strength steel plate and method for manufacturing the same |
| 04/23/2008 | CN101165200A High-silicon ferritic heat-resistant cast iron having high-temperature strength and high oxidation resistance |
| 04/23/2008 | CN101165195A Method for thinning steel microscopic structure of crank axle for vessel |
| 04/23/2008 | CN100383258C Scale removing method for induction heating apparatus and induction heating apparatus |
| 04/23/2008 | CN100383257C Protective inner cover for annealing stainless steel |
| 04/22/2008 | US7361299 Hydrogen closed-cycle hardening unit |
| 04/22/2008 | US7361015 Clamp device and clamp method for heat-treated article |
| 04/22/2008 | CA2501200C An apparatus and method for improving work surface during forming and shaping of materials |
| 04/17/2008 | WO2008003395A8 Method for manufacturing spheroidal cast iron mechanical components |
| 04/17/2008 | US20080087358 Tempering through high-frequency heating |
| 04/17/2008 | DE102006048712A1 Method for work-hardening surfaces of vehicle engine and transmission components comprises ultrasonic shot peening using component as part of sonotrode, its vibrating surfaces being hardened by contact with shot |
| 04/17/2008 | DE102006047929A1 Verfahren zur Wärmebehandlung A method of heat treatment |
| 04/17/2008 | DE102006047859A1 Method for heat treating a component comprises heating the component inductively to a temperature above the austenitic temperature and quenching using a medium under high pressure to remove oxidation products on the surface |
| 04/16/2008 | CN201046982Y Large-scale annular element well type heat treating furnace |
| 04/16/2008 | CN201046980Y Inner nozzle |
| 04/16/2008 | CN201046979Y Expansion pipe |
| 04/16/2008 | CN201046978Y Double-venting external sprayer |
| 04/16/2008 | CN201046977Y External agitation type hardening bath |
| 04/16/2008 | CN201046976Y Normalizing cooler |
| 04/16/2008 | CN101161850A Copper-ageing hardening bainite large-section plastic mould steel and manufacturing technique thereof |
| 04/16/2008 | CN100382367C Solid electrolyte membrane fuel cell metal bipolar plate containing nitrogen carbon surface and method for manufacturing same |
| 04/16/2008 | CN100381598C Orientating silicon steel, manufacturing process and equipment thereof |
| 04/16/2008 | CN100381588C Method and device for the production of hot-rolled strip having a dual-phase structure |
| 04/16/2008 | CN100381587C Process for preparing low-alloy wear-resistant steel without high temperature heat treatment |
| 04/15/2008 | US7358217 Quenching oil compositions |
| 04/15/2008 | US7357894 Method and apparatus for cooling hot rolled steel strip, and method for manufacturing hot rolled steel strip |
| 04/15/2008 | US7357843 Flowing ethylene and hydrogen gas into depressurized vacuum heat treating furnace; calculating an equivalent carbon concentration; carburization, carbonitriding; accuracy, quality, reproducibility |
| 04/15/2008 | CA2463783C Martensitic stainless steel and method for manufacturing same |
| 04/10/2008 | WO2008043062A1 Duplex hardening process and articles made therefrom |
| 04/10/2008 | WO2008041117A1 High speed quenching assembly for metal products |
| 04/10/2008 | US20080084011 Low Pressure Thermochemical Treatment Machine |
| 04/10/2008 | US20080083207 Mower sickle bar |
| 04/10/2008 | CA2664912A1 Microtreatment of iron-based alloy, apparatus and method therefor, and articles resulting therefrom |
| 04/09/2008 | EP1909348A1 Titanium electrode material |
| 04/09/2008 | EP1908852A1 Bearing device for wheel |
| 04/09/2008 | EP1907595A1 Heat-treating of rolling elements for bearings, and furnace for implementing such treatment |
| 04/09/2008 | EP1546426B1 Steel composition and parts forged by a forging die |
| 04/09/2008 | EP1063313B1 Steel wire and method of manufacturing the same |
| 04/09/2008 | CN201045143Y C-type fast cooling air box |
| 04/09/2008 | CN101158046A Surface heat-treatment method for middle-load high-accuracy carburization part |
| 04/09/2008 | CN101158045A Loop-type carburizing furnace |
| 04/09/2008 | CN101158044A Push-rod continuous carburetion quenching production line |
| 04/09/2008 | CN101157975A Metal wire annealing furnace |
| 04/09/2008 | CN101157973A Low or non oxidizing heat-treating facility |
| 04/09/2008 | CN101157972A Heat treatment furnace without charging basket |
| 04/09/2008 | CN101157971A Rolled steel manufacture equipment |
| 04/09/2008 | CN101157970A Quenching cooler |
| 04/09/2008 | CN101157969A Artesian spring type hardening bath |
| 04/09/2008 | CN101157968A Electric spark surface treatment apparatus |
| 04/09/2008 | CN101157967A High vacuum electron beam heat-treating apparatus |
| 04/09/2008 | CN101157174A Production technology of ring round quench roller |
| 04/09/2008 | CN101157172A Method of preparing medical high-precision titanium and titanium alloy rod bar |
| 04/09/2008 | CN100380539C Method for producing nanocrystalline magnet cores, and device for carrying out said method |
| 04/09/2008 | CN100379886C Rapid cooling device for steel band in continuous annealing equipment |
| 04/09/2008 | CN100379635C Caterpillar shaft sleeve and manufacturing method thereof |
| 04/08/2008 | US7354493 Method and device for patenting steel wires |
| 04/08/2008 | US7354487 Cooled and annealed bainite steel part, and a method of manufacturing it |
| 04/03/2008 | WO2008038880A1 Annealing apparatus |
| 04/03/2008 | WO2008037327A1 Method for the thermomechanical treatment of seamless rings produced on radial-axial ring rolling machines |
| 04/03/2008 | US20080078481 Coherent field electromagnetic energy induces solid to liquid phase transition in silicon, aluminum, copper, tin, iron, titanium, iridium, boron, silicon, lead, germanium or alloy without significant detectable heat generation; tune field frequencies to one or more bond energy frequencies of a metal |