| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 09/26/2007 | CN200952024Y Spheroidizing furnace |
| 09/26/2007 | CN101041886A Alloy ball iron guide disc for precision tube grimper |
| 09/26/2007 | CN101041885A Steel for plastic molds and process of heat treatment thereof |
| 09/26/2007 | CN101041168A Method of making a metallic thin wire and a medical tool into which the metallic thin wire is incorporated |
| 09/26/2007 | CN100339490C Technical method for die sleeve material of mould-pipe |
| 09/25/2007 | US7273584 mixing powders or alloy powders with yttrium oxide powder to form a mixed powder, then alloying, solidifying by hot extrusion, heat treating and tempering to form heat resistant martensite steels |
| 09/20/2007 | WO2007105660A1 High-pressure fuel injection tube having connecting head portion and bend portion, and method for producing the same |
| 09/20/2007 | WO2007084089A3 Method for delaying of cooling and hardening of desired zones of a sheet during a hot metal stamping process |
| 09/19/2007 | EP1732716B1 Method for producing a metal |
| 09/19/2007 | CN200949127Y 铝针板 Aluminum needle plate |
| 09/19/2007 | CN200949110Y Drum quenching device |
| 09/19/2007 | CN101037760A High-carbon high-high-vanadium high-speed steel composite roller and heat treatment method thereof |
| 09/19/2007 | CN101037719A Gas integral heat treating method and device for large-scale pressure container |
| 09/19/2007 | CN101037718A Heat treating method for improving mechanical property of 42CrMo |
| 09/19/2007 | CN100338976C Plasma-assisted process in production line |
| 09/19/2007 | CN100338238C Processing method for hydrophilizing body surface |
| 09/19/2007 | CN100338236C Heating furnace with regenerative burners and method of operating heating furnace |
| 09/19/2007 | CN100338235C Method and device for continuous annealing metallic ribbons with improved process efficiency |
| 09/18/2007 | US7270781 System for producing alloy containing rare earth metal |
| 09/18/2007 | US7270719 Method for manufacturing surface hardened stainless steel with improved wear resistance and low static friction properties |
| 09/18/2007 | US7270607 Constant velocity universal joint and method of manufacturing the same |
| 09/18/2007 | CA2325897C Process for ultrasonic peening of large annular surfaces on thin parts |
| 09/13/2007 | WO2007103145A1 Low frequency heating device and article made therefrom |
| 09/13/2007 | WO2007102533A1 Machine element, constant velocity universal joint and process for manufacturing them |
| 09/13/2007 | WO2007102306A1 Method of high-frequency quenching, high-frequency quenching apparatus, and product of high-frequency quenching |
| 09/13/2007 | WO2007102280A1 Method of metal surface hardening treatment inducing transformation |
| 09/13/2007 | WO2007101921A1 Process for manufacturing steel sheet having very high strength, ductility and toughness characteristics, and sheet thus produced |
| 09/13/2007 | US20070209740 Power transmission shaft and method for producing same |
| 09/12/2007 | EP1832667A1 Method of producing steel sheets having high strength, ductility and toughness and thus produced sheets. |
| 09/12/2007 | EP1831410A1 Method for thermally treating a component consisting of a fully hardenable, heat-resistant steel and a component consisting of said steel |
| 09/12/2007 | EP1831409A1 Method for case hardening a component by means of oil jets and device for carrying out said method |
| 09/12/2007 | EP1831408A2 Composition and process for enhanced properties of ferrous components |
| 09/12/2007 | EP1740625B1 Method for producing aqueous polyvinyllactam dispersions |
| 09/12/2007 | EP1473375B1 Steel wire excellent in descalability in mecanical descaling and method for production thereof |
| 09/12/2007 | CN200946157Y Hot technology apparatus after welding |
| 09/12/2007 | CN200946156Y Fast cooling device |
| 09/12/2007 | CN101035913A Method and device for quenching flat steel products |
| 09/12/2007 | CN101033554A High-carbon steel pin roll vanadizing composite treatment process |
| 09/12/2007 | CN101033526A Nickel-base high-temperature alloy material for guide roller and heat treatment process thereof |
| 09/12/2007 | CN101033514A Method of manufacturing desander outfit |
| 09/12/2007 | CN101033502A Strip steel temperature process transition method |
| 09/12/2007 | CN101033500A Integral heat treatment method for fixed pipe plate-type heat exchanger |
| 09/12/2007 | CN101033499A Method of producing stainless steel band for air injection steel reed |
| 09/12/2007 | CN101032795A Technique of aluminum cover without otic placode coil |
| 09/12/2007 | CN101032793A Method of producing cutting tool steel board with three layer complex blades |
| 09/12/2007 | CN101032792A Method of producing cutting tool steel board of complex blades |
| 09/12/2007 | CN101032791A Method of producing three layer clad sheet steel used for cutting-tool |
| 09/12/2007 | CN100336917C Gas jet cooling device |
| 09/12/2007 | CN100336916C Method for producing grain-oriented silicon steel plate with mirror surface |
| 09/11/2007 | US7267793 Furnace for vacuum carburizing with unsaturated aromatic hydrocarbons |
| 09/11/2007 | US7267732 Method for manufacturing steel parts by continuous copper-brazing and quench hardening |
| 09/11/2007 | US7267731 close to the designed shape using a focused charged-particle beam by reducing the effects of etching and deposition which vary according to various conditions when a processing work is performed |
| 09/06/2007 | US20070204939 Method and Device for Induction Heating and Hardening Apparatus |
| 09/05/2007 | EP1830147A1 Multi-chamber continuous furnace with protective gas supply and process for the scale free heating of galvanized workpieces |
| 09/05/2007 | EP1829981A1 Apparatus for producing high strength steel sheet or hot dip zinc plated high strength steel sheet excellent in elongation and bore expanding characteristics |
| 09/05/2007 | EP1339889B1 STEEL PLATE TO BE PRECIPITATING TiN+CuS FOR WELDED STRUCTURES, METHOD FOR MANUFACTURING THE SAME, WELDING FABRIC USING THE SAME |
| 09/05/2007 | CN200943104Y Band steel continuous hot zinc coating process equipment |
| 09/05/2007 | CN200943097Y Intermediate frequency heating graphite furnace lining |
| 09/05/2007 | CN101031662A High-frequency heat treating system, high-frequency heat treating method and processed product produced by the method |
| 09/05/2007 | CN101031661A Carbon material for hearth roll, hearth roll, and method for using hearth roll |
| 09/05/2007 | CN101029378A On-line thermal-insulating quenching apparatus and process |
| 09/05/2007 | CN101029373A Preharden steel with excellent cutting performance and toughness and manufacturing method therefor |
| 09/05/2007 | CN101029369A Metal material and process for producing various accessories therefrom |
| 09/05/2007 | CN101029349A Heat-treatment quench oil composite additive and its production |
| 09/05/2007 | CN101029348A Process for heating titanium oblique perforating rod ingot |
| 09/05/2007 | CN100336156C Plasma-assisted gas generation |
| 09/05/2007 | CN100335670C High strength steel plate and method for production thereof |
| 09/05/2007 | CN100335662C Production of concrete transporting pipes |
| 09/05/2007 | CN100335661C System for producing alloy containing rare earth metal |
| 08/30/2007 | WO2007097663A1 Metal heat treating methods and devices |
| 08/30/2007 | WO2007096929A2 Optical method for evaluating the surface-hardening of a metallic or a metal-containing material |
| 08/30/2007 | WO2007096502A2 Method and device for cooling and stabilizing strip in a continuous line |
| 08/30/2007 | US20070200281 Device For Producing A Hot-Rolled Thermal Strip, Especially Made Of Strip-Type Continuous Casting Material |
| 08/30/2007 | CA2643298A1 Metal heat treating methods and devices |
| 08/29/2007 | EP1826286A2 Steel part having long rolling contact fatigue life and method for producing the same |
| 08/29/2007 | EP0912769B1 Induction hardened microalloy steel having enhanced fatigue strength properties |
| 08/29/2007 | CN200940153Y Double layered roller bottom type continuous spheroidizing furnace |
| 08/29/2007 | CN200940151Y Water quenching cooling apparatus for extrudate |
| 08/29/2007 | CN200940150Y Spray type water quenching cooling apparatus for extrudate |
| 08/29/2007 | CN101027416A Self-annealing enclosure device |
| 08/29/2007 | CN101027148A Nano-crystalline steel sheet |
| 08/29/2007 | CN101026034A Method for preparing corrosion resistance rare earth permanent-magnetic material |
| 08/29/2007 | CN101024870A Low-temperature high-strength, high-toughness steel and preparing method therefor |
| 08/29/2007 | CN101024861A Carbon-steel gas-protection-free oxidation-preventing annealing method |
| 08/28/2007 | CA2355078C Combination conduction/convection furnace |
| 08/23/2007 | WO2007094096A1 High frequency hardening method, high frequency hardening equipment, and high frequency hardened product |
| 08/23/2007 | US20070198122 Method For Producing A Metal |
| 08/23/2007 | US20070194504 Heat Treatment System |
| 08/23/2007 | US20070193660 gear and a component of a rolling element bearing has a hardened carburized case portion, is free of continuous phase grain boundary carbides; surface hardness; corrosion resistance |
| 08/22/2007 | EP1820871A1 Process and device for precipitation hardening of highly alloyed light metals by induction |
| 08/22/2007 | EP1425426B1 Device for quenching and tempering long-length rolling stock |
| 08/22/2007 | CN1333088C Cage type furnace convection plate |
| 08/22/2007 | CN1333087C Heating furnace with regenerative burners and method of operating heating furnace |
| 08/22/2007 | CN101021013A Process of preparing nanometer antiwear composite coating on surface of metal base |
| 08/22/2007 | CN101021012A Iron and steel material coloring surface treatment process |
| 08/22/2007 | CN101020995A Continuous annealing furnace for blown aluminium plate |
| 08/22/2007 | CN101020990A Series superfine carbide high alloy tool steel |
| 08/22/2007 | CN101020950A Heat treatment process for thin-wall low carbon steel part |
| 08/22/2007 | CN101020944A Laser impact forming and reinforcing system |
| 08/22/2007 | CN101020278A Prepn of leadless RE powder brazing alloy |