| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 03/04/2009 | CN101376919A Intermediate frequency induction heating furnace for bearing steel pipe blank |
| 03/04/2009 | CN101376918A Intermediate frequency induction self-heating method for bearing steel pipe blank |
| 03/04/2009 | CN100465347C A method of drip-feed type gas boronization |
| 03/04/2009 | CN100465324C A low-alloy high speed steel roll material and a manufacturing method thereof |
| 03/04/2009 | CN100465323C A nanometer crystal composite permanent-magnet alloy and a preparation method thereof |
| 03/04/2009 | CN100465303C A cooling method and a device for a steel sheet |
| 03/04/2009 | CN100465301C A rotating unit for horizontal quenching machine tools |
| 03/04/2009 | CN100465300C A production method of stainless steel bands for air injection steel reeds |
| 03/04/2009 | CN100465299C A method for producing cold rolled steel strips with a dual phase ferrite/martensite structure and the strips thereby |
| 03/04/2009 | CN100465297C A discharging cooling material frame for thermal treatments |
| 03/04/2009 | CN100465296C A high-pressure heat treatment furnace |
| 03/03/2009 | US7497984 Device for cooling long objects |
| 03/03/2009 | US7497915 High strength, noncracking |
| 02/26/2009 | WO2009024472A1 Method for producing a surface-decarbonized hot-rolled strip |
| 02/26/2009 | US20090051085 Metal heat treating systems that control the ratio of hydrogen to water vapor in metal heat treating atmospheres |
| 02/26/2009 | US20090050622 Heat treatment of flexibly rolled strip |
| 02/25/2009 | EP2028281A1 Heat treatment of flexibly rolled sheet |
| 02/25/2009 | CN101372732A Preparation technique of martensite sterilizing stainless steel |
| 02/25/2009 | CN101372725A IF steel cage type annealing process |
| 02/25/2009 | CN101372724A Quenching method of transverse element for metal push belt |
| 02/25/2009 | CN100464000C Austenite cold-forged stainless-steel and steel wire making method |
| 02/25/2009 | CN100463999C Stainless steel wire for spoke use and producing method thereof |
| 02/25/2009 | CN100463997C Supersaturated carburizing steel |
| 02/25/2009 | CN100463981C Method of preparing forging steel cold roll without soft band |
| 02/25/2009 | CN100463980C Double layer roller bottom type continuous spheroidizing annealing furnace |
| 02/25/2009 | CN100463978C Method for increasing toughness of low temperature steel plate |
| 02/25/2009 | CN100463977C Method and device for lasing surface modified gas protection in atmospheric environment |
| 02/25/2009 | CN100463975C Production of sponge iron |
| 02/25/2009 | CN100463769C Process for growing crystal layer, machine component having the crystal layer andmethod for producing the machine component |
| 02/24/2009 | US7494618 Alloy tool steel |
| 02/19/2009 | US20090045557 Method of Arranging and Setting Spray Cooling Nozzles and Hot Steel Plate Cooling Apparatus |
| 02/19/2009 | US20090045556 Equipment and method for hardening treatment of metallic parts |
| 02/19/2009 | US20090044884 Treatment Process for Bars |
| 02/19/2009 | DE102007039096A1 Method for hot-forming and hardening a sheet metal component in an extrusion press tool, comprises introducing a heated sheet metal section in the opened cooled extrusion press tool between a stencil and a stamp, and closing the press tool |
| 02/18/2009 | EP2025765A1 Rolling bearing |
| 02/18/2009 | EP2024522A1 Process for hardening an annular groove of a piston head by means of laser beams and a piston produced by the process |
| 02/18/2009 | EP1642991B1 Method for hot forming and hot formed member |
| 02/18/2009 | EP1296798B1 Method and apparatus for flexible manufacturing a discrete curved product from feed stock |
| 02/18/2009 | CN201195742Y Reshaping baking lamp machine for glasses frame |
| 02/18/2009 | CN201195735Y Pin-rail tooth form quenching inductor |
| 02/18/2009 | CN201195734Y Jacket cooling apparatus |
| 02/18/2009 | CN101370947A Method and device for the continuous creation of a bainite structure in a carbon steel, especially a strip steel |
| 02/18/2009 | CN101368275A 42CrMoE thermal treatment technique |
| 02/18/2009 | CN101368251A Steel plate for large-thickness hydrogen-contacting equipment and its production technology |
| 02/18/2009 | CN101368249A Steel for boiler and method of producing the same |
| 02/18/2009 | CN101368247A Novel chromium system hot die steel and thermal treatment process thereof |
| 02/18/2009 | CN101368227A Thermal treatment method for nuclear in-pile component |
| 02/18/2009 | CN101368226A Tooth ring tooth surface laser induration processing method |
| 02/18/2009 | CN100462482C Alloy coating technique for metallic screw assembly surface |
| 02/18/2009 | CN100462472C Gaseous sulfonitriding process |
| 02/18/2009 | CN100462466C Method of producing low-temperature high-toughness steel and steel plate |
| 02/18/2009 | CN100462448C Method of bearing ball annealing and device using the method |
| 02/18/2009 | CN100462192C Method of producing cutting tool steel board of complex blades |
| 02/18/2009 | CN100462191C Method of producing three layer clad sheet steel used for cutting-tool |
| 02/17/2009 | CA2403221C Heating furnace with regenerative burners and method of operating the heating furnace |
| 02/17/2009 | CA2379698C Cold rolled steel sheet and galvanized steel sheet having strain age hardenability |
| 02/17/2009 | CA2301597C Hot rolling high-strength steel structural members |
| 02/12/2009 | WO2008152275A3 Method and equipment for heating a metal strip, in particular for annealing |
| 02/12/2009 | US20090042054 Nb-si based alloys having an al-containing coating, articles, and processes |
| 02/12/2009 | US20090039714 Magnetostrictive FeGa Alloys |
| 02/12/2009 | US20090038717 Process for Manufacturing High Strength Corrosion Resistant Alloy For Oil Patch Applications |
| 02/11/2009 | EP2022598A1 Method of improving residual stress in tube body and device for improving residual stress |
| 02/11/2009 | EP1601809A4 Method for the production of dual phase sheet steel |
| 02/11/2009 | CN201193236Y Thermal recovery type continuous isothermal normalizing furnace |
| 02/11/2009 | CN101364465A Permanent magnetic RE material and preparation thereof |
| 02/11/2009 | CN101363101A Large thickness quenched high strength steel and production method thereof |
| 02/11/2009 | CN101363099A Cold rolled dual-phase sheet steel with 1000MPa grade tensile strength and preparation method thereof |
| 02/11/2009 | CN101363078A Heat treatment method of steel belt for packages and steel belt for packages |
| 02/11/2009 | CN101363077A Isothermal spheroidizing technology of cold precision forging gear blank |
| 02/11/2009 | CN101363073A Isothermal normalizing technology of carburized gears steel forging |
| 02/11/2009 | CN101363072A Sealing rapid cooling chamber |
| 02/11/2009 | CN101363071A Brilliant isothermal normalizing production system |
| 02/11/2009 | CN101363070A Water quenching and air cooling modified treatment technology of 42CrMo material |
| 02/11/2009 | CN101362182A Processing method of impact block |
| 02/11/2009 | CN101362152A Intermediate-frequency quenching hard-surface strain roller and manufacture method thereof |
| 02/11/2009 | CN100460547C High-temperature-resistance FeNiCo constant-modulus alloy, preparation method thereof, and method for preparing components by using same |
| 02/11/2009 | CN100460530C Heat treatment system |
| 02/11/2009 | CN100460529C Vacuum dual-chamber high temperature quenching furnace |
| 02/11/2009 | CN100460528C Crawler bushing and method and device for producing the same |
| 02/11/2009 | CN100460526C Longitudinal inductor and scanning quenching technology for stepped axle longitudinal inductor |
| 02/05/2009 | WO2009018476A1 Reheat and tunnel furnace systems with reduced nitrogen oxides emissions |
| 02/05/2009 | WO2009016942A1 Heat-treatment oil composition |
| 02/05/2009 | US20090032310 Earth-boring tools having particle-matrix composite bodies, methods for welding particle-matrix composite bodies and methods for repairing particle-matrix composite bodies |
| 02/05/2009 | US20090032149 High-strength steel tube and heat treatment method of heat-treating the same |
| 02/05/2009 | US20090032141 Soft-metal electromechanical component and method making same |
| 02/05/2009 | CA2694957A1 Reheat and tunnel furnace systems with reduced nitrogen oxides emissions |
| 02/04/2009 | CN201191538Y Bonded wire production equipment for semiconductor package |
| 02/04/2009 | CN201190176Y Shielding and liquid-blocking device of wheel gear quenching |
| 02/04/2009 | CN201190175Y Auxiliary device of steel tube inner spray quenching equipment |
| 02/04/2009 | CN201190174Y Fast-cooling device of heat treating workpiece |
| 02/04/2009 | CN201190172Y Steel tube quenching device |
| 02/04/2009 | CN201190171Y Quenching inductor of roll |
| 02/04/2009 | CN101358279A Technique and method for preparing biconical roller of large-sized strip hot-rolling mill transport roller |
| 02/04/2009 | CN101358278A Intermediate frequency bent tube technique of heat-engine plant A335P92 steel |
| 02/04/2009 | CN101358275A Upper layer heat exchange type continuous annealing furnace |
| 02/04/2009 | CN101358270A Vacuum degreasing sintered quenching integrated furnace |
| 02/04/2009 | CN101358269A Carburizing quenching pipeline and technique thereof |
| 02/04/2009 | CN101357413A Heat engine plant A335P92 steel welding technique |
| 02/04/2009 | CN101357375A Production mold of outer ring for cardan universal joint and method thereof |
| 02/04/2009 | CN100459818C Inner diameter surface induction heating coil |