| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 09/11/2008 | US20080216922 Vacuum carburization method and vacuum carburization apparatus |
| 09/10/2008 | EP1966398A1 Method of optimizing an oxygen free heat treating process |
| 09/10/2008 | EP1966397A1 Method for adjusting hardness of a sheet like product. |
| 09/10/2008 | EP1966396A2 Method for oxygen free carburization in atmospheric pressure furnaces |
| 09/10/2008 | EP1965957A1 Automated control of razor blade colorization |
| 09/10/2008 | CN101263234A Hearth roll apparatus for annealing furnace |
| 09/10/2008 | CN101260505A Vacuum carburization treatment method and vacuum carburization treatment apparatus |
| 09/10/2008 | CN101260501A High-boron low-carbon abrasion resistant cast steel and heat treatment method thereof |
| 09/10/2008 | CN101260499A Boron-containing casting die steel and preparation method thereof |
| 09/10/2008 | CN101260497A Boron-containing high-chromium abrasion-proof cast iron and preparation method thereof |
| 09/10/2008 | CN101260457A Multifunctional steel wire induction heating heat-treatment device and method |
| 09/10/2008 | CN101259582A Preparation of seamless special-shaped steel pipe for low temperature resistance oil derrick electric transmission pole tower |
| 09/10/2008 | CN100417741C Cast steel materials |
| 09/10/2008 | CN100417732C Production method for high accuracy car steering rod seasoning, suspended rod eleminating stress |
| 09/09/2008 | US7422643 induction hardened gears; improved seizure resistance of its tooth flanks; temper hardness of HRC 50 or more at 300 degrees C; steel of C, V, Cr,Ti, Zr, Nb, Ta and Hf; cementite disperses in a martensite parent phase formed by quench hardening induction heating and cooling; pitting resistance |
| 09/04/2008 | WO2008105209A1 Component for constant velocity universal joint and method for manufacturing the component |
| 09/04/2008 | WO2008104610A1 Method for annealing a strip of steel having a variable thickness in length direction |
| 09/04/2008 | WO2008104360A1 Method for shaping a blank, and cooling device for a blank |
| 09/04/2008 | CA2679432A1 Method for shaping a blank, and cooling device for a blank |
| 09/03/2008 | EP1964940A1 Method of carbonitriding, process for producing machine part, and machine part |
| 09/03/2008 | EP1885894B1 Method for the batch heat-treatment of annealing product |
| 09/03/2008 | EP1137822B1 Processes for producing articles with stress-free slit edges |
| 09/03/2008 | CN201109788Y Oil-gas separating device for complete hydrogen bell-type furnace |
| 09/03/2008 | CN101255491A Large die-casting mould micro-deformation vacuum heat treatment process |
| 09/03/2008 | CN101255489A Device for eliminating gas-cutting hardening layer of railway wheel sample and technical method |
| 09/03/2008 | CN101255488A Quality optimization process for H13 steel vacuum thermal treatment |
| 09/03/2008 | CN101255487A Roller quenching inducer and method of use thereof |
| 09/03/2008 | CN100415902C Method of improving steel object surface hardness using carbon distribution |
| 09/02/2008 | CA2475000C Martensitic stainless steel and method for manufacturing the same |
| 08/28/2008 | WO2008103839A2 Expandable rotating device and method for tissue aspiration |
| 08/28/2008 | WO2008102684A1 Carburizing apparatus and carburizing method |
| 08/28/2008 | WO2008102012A1 Method of thermomechanical shaping a final product with very high strength and a product produced thereby |
| 08/28/2008 | US20080208230 Expandable rotating device and method for tissue aspiration |
| 08/28/2008 | US20080202652 Ferrous seal sliding parts and producing method thereof |
| 08/28/2008 | US20080202651 Method For Manufacturing High-Density Iron-Based Compacted Body and High-Density Iron-Based Sintered Body |
| 08/28/2008 | US20080202642 Rare Earth Magnet, Method for Producing Same and Method for Producing Multilayer Body |
| 08/28/2008 | CA2679012A1 Carburizing apparatus and carburizing method |
| 08/27/2008 | EP1961925A2 Manufacturing method of rocker arm and rocker arm roller |
| 08/27/2008 | EP1961831A1 High-strength steel product excelling in fatigue strength and process for producing the same |
| 08/27/2008 | EP1960558A2 Flash tempering process and apparatus |
| 08/27/2008 | CN201106062Y Bimetallic wire continuous on-line annealing apparatus |
| 08/27/2008 | CN201106058Y Sealing arrangement of heating furnace |
| 08/27/2008 | CN101250615A Severe-convective cooling system for low-pressure continuous protective atmosphere heat treatment furnace |
| 08/27/2008 | CN101250614A Heat treatment furnace with built-in euthermic gas generation device |
| 08/27/2008 | CN101250613A Pre-heating and cooling-recycle system for quenching medium |
| 08/27/2008 | CN101250612A Multi-station quenching cooling equipment realizing fluid-immersion quenching by liquid level change |
| 08/27/2008 | CN101250611A Strength-toughening technique for high-chromium austenite wear resistant cast iron |
| 08/27/2008 | CN101250607A Grain refining method for ultra-supercritical steel |
| 08/27/2008 | CN100413992C High-speed steel and heat treatment technique thereof |
| 08/27/2008 | CN100413991C High alloy die steel and heat treatment technique thereof |
| 08/27/2008 | CN100413980C Method for producing unidirectional silicons steel sheet free of inorganic mineral coating film |
| 08/26/2008 | US7416623 Method of causing intergranular stress corrosion crack to generate and grow in sample |
| 08/26/2008 | US7416622 Method and system for thermal treatment of rails |
| 08/26/2008 | CA2286407C Liquid fuel burner, notably for iron and steel product reheating furnaces |
| 08/21/2008 | WO2008100583A1 Method for imprinting and erasing amorphous metal alloys |
| 08/21/2008 | WO2008081118A3 Processing method for cracking desensitisation using a nickel based alloy environment, mainly for a nuclear reactor fuel assembly and for a nuclear reactor, and part made of the alloy thus processed |
| 08/21/2008 | WO2006033752A3 Method for extending the life of thin walled tubing and austempered weld stress relieved thin walled tubing |
| 08/21/2008 | US20080197546 Metal heat treatment system hot-gas quenching apparatus and hot-gas heat treatment system |
| 08/21/2008 | US20080196800 Time-delayed contact of tool with parts of component receptacles allows purposeful production at this location a bainitic, perlitic, ferritic or mixed structure optimally satisfying design demands; bodywork components exposed to varying loads |
| 08/21/2008 | US20080196795 Method of Producing a Strip of Nanocrystalline Material and Device For Producing a Wound Core From Said Strip |
| 08/20/2008 | EP1461467B1 Triple-phase nano-composite steels |
| 08/20/2008 | CN101248205A Martensitic stainless steel composition, method for making amechanical part from said steel and resulting part |
| 08/20/2008 | CN101248194A High-strength steel pipe and method of heat treatment therefor |
| 08/20/2008 | CN101248193A Clamper for thermal treatment, thermal treatment device and method |
| 08/20/2008 | CN101245577A Method for improving abrasion resistance of switch tongues point rail terminal |
| 08/20/2008 | CN101245437A High collapse-resistance and hydrogen sulphide-corrosion-resistant low alloy petroleum case pipe and method of manufacturing the same |
| 08/20/2008 | CN101245436A High-strength toughness steel for continuous sucker rod and method for manufacturing same |
| 08/20/2008 | CN101244507A Process for manufacturing TC4 titanium alloy thin wall overpressure resistant barrel |
| 08/20/2008 | CN101244435A Technique for producing high-carbon steel wire bar |
| 08/20/2008 | CN100411807C Method for welding external surface of steam admission spile for mains team in steam turbine through stellite |
| 08/19/2008 | US7413704 Case hardening bearing steel having excellent toughness and rolling contact fatigue life in intermediate temperature |
| 08/19/2008 | CA2291890C Method for heat treating mold cast product |
| 08/14/2008 | WO2008097374A2 Ultra-short duration laser methods for the nanostructuring of materials |
| 08/14/2008 | WO2008095329A1 An anti-oxidation coating for steel and method of protecting steel from oxidation |
| 08/14/2008 | WO2008077166A3 Method and device for the thermal treatment of long metallic products |
| 08/14/2008 | WO2008048307A8 Flash tempering process and apparatus |
| 08/14/2008 | WO2007087973A8 Process for the heat treatment of steel strips in a continuous furnace with oxy-fuel burners |
| 08/14/2008 | US20080190520 Grain-Oriented Electrical Steel Sheet and Method for Manufacturing Grain-Oriented Electrical Steel Sheet |
| 08/14/2008 | DE102007006338A1 Verfahren zur Ausbildung einer Anrissstelle zum Bruchtrennen eines Bauteils aus einem Kohlenstoffstahl A method of forming a teaser site for cracking a component made of a carbon steel |
| 08/13/2008 | EP1956099A1 Cutlery made from ferritic stainless steel with a martensitic surface layer |
| 08/13/2008 | EP1954848A2 A process for raising the tempering resistance of a steel work piece |
| 08/13/2008 | EP1954842A1 Method for producing hot strip with a multiphase structure |
| 08/13/2008 | EP1954841A1 Installation for the dry transformation of a material microstructure of semi-finished products |
| 08/13/2008 | CN201099693Y Petroleum bore rod heat treatment facilities |
| 08/13/2008 | CN201099691Y Secondary cooling device |
| 08/13/2008 | CN101241776A Electrical contact compound material preparing method |
| 08/13/2008 | CN101240404A High-carbon high-boron wear-resisting alloy and preparation method thereof |
| 08/13/2008 | CN101240365A Thermal treatment vacuum furnace material transferring device |
| 08/13/2008 | CN101240364A Drum-type quenching machine |
| 08/13/2008 | CN101240363A Combined hood-type furnace annealing method and annealing furnace device thereof |
| 08/13/2008 | CN101240150A Polyester adhesive crack arrest paster and its preparation method and application |
| 08/13/2008 | CN101239432A Crack arrest method of alloy surface fine crack crack arrest method and device thereof |
| 08/13/2008 | CN100410556C 滚动轴承 Rolling |
| 08/13/2008 | CN100409957C Production method of austenitic stainless belt with non-reflective surface appearance |
| 08/12/2008 | US7410547 Method and device for inhibiting contamination of a workpiece |
| 08/12/2008 | CA2351504C Arrangement in connection with cooling equipment for cooling billets |
| 08/12/2008 | CA2310951C High-strength hot-rolled steel sheet having excellent stretch flangeability, and method of producing the same |
| 08/12/2008 | CA2239543C Method for heat treating rolled stock and device to achieve the method |
| 08/07/2008 | WO2008094613A1 Method of improving mechanical properties of gray iron |
| 08/07/2008 | WO2008094093A1 Method for the heat treatment of extended steel products |