| Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082) |
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| 03/12/2009 | WO2009030091A1 A die molding structure for surface hardening treatment of chain saw guide plate |
| 03/12/2009 | US20090065105 Spring steel wire rod excellent in decarburization resistance and wire drawing workability and method for producing same |
| 03/11/2009 | EP2034036A2 Wire rod having excellent wire drawability and its production method |
| 03/11/2009 | EP2034034A1 Delivery roll, and hearth roll for continuous annealing furnace |
| 03/11/2009 | EP2033773A2 Fastening element |
| 03/11/2009 | EP2032917A1 Apparatus and method for coil cooling |
| 03/11/2009 | EP2032739A1 A method for coating washers for locking and coated washer for locking |
| 03/11/2009 | EP1469954B2 Method for producing a hot rolled strip from austenitic rust-resistant steels |
| 03/11/2009 | CN201207306Y Heat recovery device on enamel insulated wire production line |
| 03/11/2009 | CN201206160Y Copper wire softening furnace |
| 03/11/2009 | CN201206159Y Roller saw blade heat processing furnace |
| 03/11/2009 | CN101384744A Strip made of stainless austenitic steel with bright surface and excellent mechanical properties |
| 03/11/2009 | CN101384742A High-strength steel excellent in weldability and process for production thereof |
| 03/11/2009 | CN101383406A Battery lead wire and manufacturing method |
| 03/11/2009 | CN101381851A Drill rod of digger capable of high temperature crushing operation and producing method thereof |
| 03/11/2009 | CN101381850A Alloyed steel plug for steel tube perforating and production method |
| 03/11/2009 | CN101381848A Method of preparing wearable steel ball |
| 03/11/2009 | CN101381843A 5Cr5MoWSiV cold roller and heat treatment method thereof |
| 03/11/2009 | CN101381808A Waste hydrogen burning apparatus for whole hydrogen gas bell-type annealing furnace |
| 03/11/2009 | CN101381807A Metal filament directly-heated annealing method and device |
| 03/11/2009 | CN101381806A Refrigerating device of belt steel and cooling and controlling method thereof |
| 03/11/2009 | CN101381805A Gap automatic regulating apparatus |
| 03/11/2009 | CN101381804A Heat treating method of thin sheet steel type part |
| 03/11/2009 | CN101380640A Bearing steel ball-cog intermediate-frequency heating continuous rolling device |
| 03/11/2009 | CN100467658C Non-magnetic high-strength stainless steel material and method for manufacturing the same |
| 03/11/2009 | CN100467629C Driving device for silicon steel rotary high-temperature annealing furnace bed |
| 03/11/2009 | CN100467628C Anneal process and annealing furnace for belt steel continuous zinc coating production |
| 03/11/2009 | CN100467627C Drilling-rod weld heat-treatment quenching method and apparatus |
| 03/11/2009 | CN100467626C Surface aging treatment process of enhancing high manganese steel initial wear-resisting performance |
| 03/11/2009 | CN100467624C Method for producing stainless steel having improved corrosion resistance |
| 03/11/2009 | CN100467205C Production of L80-13Cr oil casings |
| 03/10/2009 | US7501606 Device for induction hardening |
| 03/10/2009 | US7501030 Hot-rolled steel strip for high strength electric resistance welding pipe and manufacturing method thereof |
| 03/05/2009 | WO2009028726A1 Solution for treatment of insulating coating film for oriented electromagnetic steel sheet, and method for production of oriented electromagnetic steel sheet having insulating coating film thereon |
| 03/05/2009 | WO2009028515A1 Process for manufacturing high-strength hot-rolled steel sheet |
| 03/05/2009 | WO2009028254A1 Heat treating furnace |
| 03/05/2009 | WO2009027593A1 Method for operating a continuous annealing or galvanisation line for a metal strip |
| 03/05/2009 | US20090056839 Method for Improving Residual Stress of Structure Member |
| 03/05/2009 | DE202008016877U1 Vorrichtung zum Erzeugen partiell gehärteter Stahlblechbauteile Apparatus for generating partially hardened steel components |
| 03/05/2009 | DE102006054928B4 Verfahren zum induktiven Härten von metallischen Werkstücken A process for induction hardening of metallic workpieces |
| 03/04/2009 | EP2031274A1 Sheave member for belt continuously variable transmissions and method of manufacturing it |
| 03/04/2009 | EP2031079A1 High-strength electromagnetic steel sheet and process for producing the same |
| 03/04/2009 | CN201204098Y Apparatus for annealing and cooling conductor |
| 03/04/2009 | CN201201964Y Annealing paying-off apparatus |
| 03/04/2009 | CN201201963Y Internal spraying water column reducing apparatus for steel pipe quenching |
| 03/04/2009 | CN201201962Y Composite type annealing furnace |
| 03/04/2009 | CN201201961Y Well type heat treatment heating furnace lid |
| 03/04/2009 | CN201201960Y Stainless steel annealing protective hood with longitudinal corrugation |
| 03/04/2009 | CN201201959Y Stainless steel annealing protective hood with horizontal corrugation |
| 03/04/2009 | CN101379208A Steel plate having excellent fine blanking processability and method for manufacture thereof |
| 03/04/2009 | CN101379207A Steel plate having excellent fine blanking processability and method for manufacture thereof |
| 03/04/2009 | CN101379203A Method of induction hardening |
| 03/04/2009 | CN101376961A Method for controlling coating alloying homogeneity |
| 03/04/2009 | CN101376960A Alloying furnace cooling section strip steel cooling apparatus and cooling control method |
| 03/04/2009 | CN101376959A Alloying soaking furnace capable of realizing hot dip galvanizing coating alloying annealing curve free inclination of soaking temperature |
| 03/04/2009 | CN101376956A Method for controlling alloyed hot dip galvanizing steel plate coating phase structure and alloyed hot dip galvanizing steel plate |
| 03/04/2009 | CN101376946A Steel for 110ksi steel grade straight welding petroleum casing pipe, casing tube and manufacturing method |
| 03/04/2009 | CN101376943A Steel for 80ksi steel grade straight welding petroleum casing pipe, casing tube and manufacturing method |
| 03/04/2009 | CN101376920A Intermediate frequency induction heating mechanical installation for bearing steel pipe blank |
| 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 | CN101376212A Cold rolling serial production line of product steel coil produced from white coil |
| 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 | CN100465302C A three-section type atmosphere controlled heat treatment furnace |
| 03/04/2009 | CN100465301C A rotating unit for horizontal quenching machine tools |
| 03/04/2009 | CN100465298C A method for producing screws, and the screws thereby |
| 03/04/2009 | CN100465297C A discharging cooling material frame for thermal treatments |
| 03/04/2009 | CN100464941C A production method of a 8.8-grade fastener with high strength |
| 03/04/2009 | CN100464940C A production method of precise steel balls |
| 03/04/2009 | CN100464923C A welding technique of P92 steels |
| 03/04/2009 | CN100464892C A reinforced method of guiding surfaces in guiding protection equipment of long thin embossing dies |
| 03/04/2009 | CN100464886C A controlling and cooling device and a controlling and cooling method of thick steel plates |
| 03/03/2009 | US7497915 High strength, noncracking |
| 02/26/2009 | WO2009025389A1 Insulating film treating liquid for grain oriented electromagnetic steel plate, and process for producing grain oriented electromagnetic steel plate with insulating film |
| 02/26/2009 | WO2009025125A1 Ferritic stainless steel plate excellent in punchability and process for production of the same |
| 02/26/2009 | WO2009024847A1 Method for the local fixing of railway wheel-sets |
| 02/26/2009 | WO2009024406A1 Peening device for peening welds inside steel submarine pipes, process for producing steel submarine pipes using such a device, and submarine connection pipe |
| 02/26/2009 | WO2009009723A3 Functionally graded powder metal components |
| 02/26/2009 | CA2697059A1 Method for the local hardening of railway wheelsets |
| 02/25/2009 | EP2028284A1 High-strength seamless steel pipe for mechanical structure which has excellent toughness and weldability, and method for manufacture thereof |
| 02/25/2009 | EP2028282A1 Dual-phase steel, flat product made of such dual-phase steel and method for manufacturing a flat product |
| 02/25/2009 | EP2028281A1 Heat treatment of flexibly rolled sheet |
| 02/25/2009 | EP2027953A2 Methods and apparatus for heat treatment and sand removal for castings |
| 02/25/2009 | EP2027952A2 Methods and apparatus for heat treatment and sand removal for castings |
| 02/25/2009 | EP2027299A1 Method of introducing residual compressive stresses into a shaft, in particular into shaft notches |
| 02/25/2009 | EP2027298A1 Method for the production of forged steel for weapons subject to heavy stresses, barrel blanks and a thus-equipped weapon |
| 02/25/2009 | EP1002884B1 Cold rolled steel plate of excellent moldability, panel shape characteristics and denting resistance, molten zinc plated steel plate, and method of manufacturing these steel plates |
| 02/25/2009 | CN201198489Y Ring shaped metal workpiece heater |
| 02/25/2009 | CN101374968A High-strength steel sheet having excellent workability |
| 02/25/2009 | CN101374966A Process for manufacturing an airbag inflator bottle member |
| 02/25/2009 | CN101372733A Bake-hardenable cold rolled steel sheet having excellent formability, and method of manufacturing the same |
| 02/25/2009 | CN101372726A Heat treatment method for thick big ductile cast iron mould |
| 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 | 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 | CN100463827C Automobile electric booster sterring system and treating method for rotary shaft thereof |