| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 08/07/2008 | WO2008092640A1 Cutlery and/or serving cutlery made of ferritic stainless steel with a martensitic case |
| 08/07/2008 | DE102007005257A1 Forming die or punch for hot deformation consists of at least two segments, at least one with recesses in contact surface with other |
| 08/06/2008 | EP1951918A1 Equipment and method for hardening in the rare gas atmosphere |
| 08/06/2008 | EP1951917A1 Process for producing sliding rings and/or mating rings of a sliding-ring seal by means of laser hardening |
| 08/06/2008 | EP1951916A2 Method and finishing train for hot-rolling starting material |
| 08/06/2008 | EP1951519A2 High strength dual phase steel with low yield ratio, high toughness and superior weldability |
| 08/06/2008 | CN201095644Y Fixture forming construction for chain saw guide plate surface hardening treatment |
| 08/06/2008 | CN201095643Y Automatic chain transmission and continuous quenching, hardening and tempering electrical resistance furnace |
| 08/06/2008 | CN201095059Y Multifunctional guide rail grinding machine |
| 08/06/2008 | CN101235506A Method for preparing nano thin film |
| 08/06/2008 | CN101235465A In-situ synthesis of boride/iron-base composite material and manufacturing method thereof |
| 08/06/2008 | CN101235433A Locomotive wheel hoop fastening ring-binding method |
| 08/06/2008 | CN101235432A Metal strengthening heat transmission protection method in metal workpiece heating techniqiue |
| 08/06/2008 | CN100408905C Manufacturing method of seamless steel pipe for pressure pipeline |
| 08/06/2008 | CN100408715C Homogenization heat treatment method of aluminum alloy ingot casting for pop-top can body |
| 08/05/2008 | US7408748 Side reading reduced GMR for high track density |
| 08/05/2008 | US7407715 Method of brazing and article made therefrom |
| 08/05/2008 | US7407555 Hot rolled wire is cold drawn with a predetermined reduction of area, high frequency induction heating is conducted; ferrite fraction in the microscopic structure is specified; of steel with lower carbon content and higher silicon content; higher performance than a hot-formed coil spring |
| 08/05/2008 | CA2137529C Salt compositions and functional fluids using same |
| 07/31/2008 | US20080182022 Production of an Inert Blanket in a Furnace |
| 07/31/2008 | US20080178972 ferrite matrix, martensite and retained austenite; elongation and stretch flangeability; ductility |
| 07/31/2008 | US20080178969 Ductibility; weldibility; dimensional stability; steel alloy is electric furnace melted, ladle refined, vacuum degassed and argon shield poured in order to ensure cleanliness and quality |
| 07/30/2008 | EP1950314A1 A method for the heat treatment of extended steel products. |
| 07/30/2008 | EP1948834A2 Method and device for the continuous creation of a bainite structure in a carbon steel, especially a strip steel |
| 07/30/2008 | EP1948127A1 Method of controlling oil-absorbing properties of a silicone rubber powder |
| 07/30/2008 | CN201092581Y Thick-walled tube and round ingot frequency-changing induction heat-treatment apparatus |
| 07/30/2008 | CN201092580Y Fine details slide track type quenching device |
| 07/30/2008 | CN101233256A Layered fe-based alloy and process for production thereof |
| 07/30/2008 | CN101233249A Laser rounding and flattening of cylindrical parts |
| 07/30/2008 | CN101233247A Steel members, method for heat treatment of the same, and process for production thereof |
| 07/30/2008 | CN101230444A High-strength micro-alloy low-carbon bainite steel and production method thereof |
| 07/30/2008 | CN101230437A Alloyed hot galvanizing bake hardening steel and method for manufacturing same |
| 07/30/2008 | CN101230414A Large-scale cold roller surface heat-treatment equipment |
| 07/30/2008 | CN101230412A Magnetic hysteresis alloy stress heat-treatment method and special assembly thereof |
| 07/30/2008 | CN101229578A Fabricating technology of cylinder barrel for train |
| 07/30/2008 | CN100406601C Triple-phase nano-composite steels |
| 07/30/2008 | CN100406586C Reduced mist laser shock peening |
| 07/30/2008 | CN100406585C Method for producing grain oriented magnetic steel sheet and grain oriented magnetic steel sheet |
| 07/30/2008 | CN100406583C Beta-phase transformation point thermal treatment process for titanium alloy |
| 07/30/2008 | CN100406582C Electronic-beam surface hardening method based on point-to-point scan |
| 07/29/2008 | US7404923 Device for cooling and/or rinsing steel wires and/or tapes |
| 07/24/2008 | WO2008086768A1 Device for producing press-hardened sheet metal elements |
| 07/24/2008 | WO2008068352A3 A strip of steel having a variable thickness in length direction |
| 07/24/2008 | DE102007002678A1 Process for production of heat formed sheet component useful in production of sheet steel avoids short life of trimming tool, especially in trimming high strength steel sheets |
| 07/23/2008 | EP1461466B1 Nano-compsite martensitic steels |
| 07/23/2008 | CN201089780Y Stainless steel pipe-soldering light annealing refrigerating mechanism |
| 07/23/2008 | CN201089779Y Gas type salt-bath furnace with preheating furnace |
| 07/23/2008 | CN201089778Y Bushing ring high-frequency treatment device |
| 07/23/2008 | CN101228285A Continuous heat treatment stove, metal tube using the same and thermal treatment method |
| 07/23/2008 | CN101225499A Low-alloy super-strength multiphase steel and heat treatment method thereof |
| 07/23/2008 | CN101225463A Method for restoring and improving service life of hot roller and cold rolling subsidiary roller |
| 07/23/2008 | CN101225461A Automobile wheel hub continuous automatic quenching device |
| 07/23/2008 | CN101225459A Method for manufacturing high-plastic ultra-fine grain micro-alloy low-carbon steel |
| 07/23/2008 | CN101225458A Coatings capable of protecting metal and enhancing heat transfer during metallic object heating process |
| 07/23/2008 | CN101225457A Environment-friendly type steel billet coating material |
| 07/23/2008 | CN101225456A Composite treating method for prolonging life of grating machine key components |
| 07/23/2008 | CN100404718C Manufacture method of ultra-low-temperature, high-strength and long-fatigue life automobile bridge seamless heterotype axle steel tube |
| 07/23/2008 | CN100404703C Heating treatment process of plated steel sheet for hot stamping |
| 07/23/2008 | CN100404702C Heat processing unit case heat treating method and its device |
| 07/23/2008 | CN100404701C Heat processing unit case heat treating method and its device |
| 07/23/2008 | CN100404700C Heat treatment process for raising comprehensive performace of low alloy structure steel |
| 07/23/2008 | CN100404699C Metal roller surface roughing method by high frequency pulse laser induced discharge |
| 07/23/2008 | CN100404154C Controllable cooling method for thick steel plate, thick steel plate manufactured by the controllable cooling method, and cooling device for the thick steel plate |
| 07/22/2008 | CA2467600C Method for producing formed articles |
| 07/17/2008 | WO2008084855A1 Residual stress improving method of pipeline |
| 07/17/2008 | WO2007028475A3 Method for producing press-hardened component |
| 07/17/2008 | DE19961208B4 Vorrichtung und Verfahren zum Kühlen von Werkstücken mittels Gas Apparatus and method for cooling workpieces by means of gas |
| 07/17/2008 | DE19950264B4 Verfahren zur Herstellung eines Doppelgelenks mit verbesserter Kaltverformbarkeit und Festigkeit A method for producing a double joint having improved cold workability and strength |
| 07/16/2008 | EP1943365A1 Hearth roll apparatus for annealing furnace |
| 07/16/2008 | EP1943364A1 Method and installation for the dry transformation of a material structure of semifinished products |
| 07/16/2008 | CN201087206Y Uniform cooling device for metal tube thermal treatment |
| 07/16/2008 | CN201087205Y Rotary feeding mechanism |
| 07/16/2008 | CN201087204Y Shot/sand rotating type quencher |
| 07/16/2008 | CN101220442A Hot work die steel with high-heat stability and high-strength |
| 07/16/2008 | CN101220441A Meta-bainite steel and application of the same in railway industry |
| 07/16/2008 | CN101220408A Oil tube electrical heat quenching and tempering thermal treatment method and apparatus |
| 07/16/2008 | CN101220403A Isothermal treatment method for nodular cast iron bainite |
| 07/16/2008 | CN101220402A Semiconductor laser unit for reinforcing metallic face |
| 07/16/2008 | CN101219444A Isometric bending channel deformation production method for high-strength commercial titanium block at room temperature |
| 07/16/2008 | CN100402689C Steel and mould tool for plastic materials made of the steel |
| 07/16/2008 | CN100402672C Method and device for controlled straightening and cooling of a wide metal strip, especially a steel strip or sheet metal, running out of a hot rolled strip rolling mill |
| 07/16/2008 | CN100402228C Technique for processing tapered platinum alloy discharge spout |
| 07/15/2008 | US7399371 Treatment method for improving fatigue life and long-life metal material treated by using same treatment |
| 07/15/2008 | US7399230 Power transmission shaft |
| 07/10/2008 | WO2008083033A2 Method for oxygen free carburization in atmospheric pressure furnaces |
| 07/10/2008 | WO2008083031A1 Method of optimizing an oxygen free heat treating process |
| 07/10/2008 | WO2008081955A1 Method of cooling hot forged part, apparatus therefor, and process for producing hot forged part |
| 07/10/2008 | US20080163963 Heat Treatment Method and Components Treated According to the Method |
| 07/10/2008 | US20080163961 Yield ratio of galvannealed steel sheet can be significantly decreased by adding chromium, vanadium, and molybdenum in combination with aluminum, thereby achieving a yield ratio of about 55% or less; good alloying hot-dip galvanization properties; ductility, high strength |
| 07/09/2008 | EP1942203A1 Steel product usable at low temperature and method for production thereof |
| 07/09/2008 | EP1699941B1 Crankshaft comprising a combined gear wheel and method for the production and use of said crankshaft |
| 07/09/2008 | EP1563104B1 Method for making an abrasion resistant steel plate and plate obtained |
| 07/09/2008 | CN201082893Y Charging and discharging mechanism for vacuum annealing furnace |
| 07/09/2008 | CN201082892Y Heat treatment multipurpose furnace main furnace front-chamber slow cooling device |
| 07/09/2008 | CN101215678A Training-free casting iron-base shape memory alloy containing high temperature ferrite |
| 07/09/2008 | CN101215671A Material capable of resisting zinc solution corrosive wear and manufacturing method thereof |
| 07/09/2008 | CN101215670A Ship lock mushroom head, mushroom head cap and processing method thereof |
| 07/09/2008 | CN101215621A Heat treatment technique for increasing elasticity modulus by high-strength pumping rod |
| 07/09/2008 | CN101214514A Corner iron shaping method, corner iron manufacturing method and corner iron shaping equipment |
| 07/09/2008 | CN101214510A Blind hole internal gear precision forming method and internal tooth forming mold |