| Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082) |
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| 06/05/2013 | CN102703662B Device for quenching ring forging |
| 06/05/2013 | CN102676764B Medium frequency induction quenching method for circumferential surface of roller |
| 06/05/2013 | CN102560031B Gear inner hole charcoal heating furnace |
| 06/05/2013 | CN102534178B Water-seal cooling device for non-oriented silicon steel strip |
| 06/05/2013 | CN102465235B Manufacturing technology of X100 anti-large deformation pipe steel |
| 06/05/2013 | CN102424907B Heat treatment system |
| 06/05/2013 | CN102418040B Toothholder and manufacturing method thereof |
| 06/05/2013 | CN102409267B Boron-containing high speed steel roller and preparation method thereof |
| 06/05/2013 | CN102199698B Laser reinforcing process for valve seat of cylinder head |
| 06/05/2013 | CN102191437B Seamless steel tube for petroleum cracking and heat treatment method thereof |
| 06/05/2013 | CN101760707B Rolling rod type continuous solid solution aging heat treatment equipment |
| 05/30/2013 | WO2013077298A1 Hot-rolled steel sheet for nitriding and cold-rolled steel sheet for nitriding with excellent fatigue strength and manufacturing method therefor, as well as automobile parts of excellent fatigue strength using same |
| 05/30/2013 | WO2013051870A3 Hearth roll |
| 05/30/2013 | WO2013037353A3 Method for improving the quality of the surfaces of crankshafts |
| 05/30/2013 | US20130133789 Steel wire of special steel and wire rod of special steel |
| 05/30/2013 | US20130133788 Watch-making or clock-making component comprising an amorphous metal alloy |
| 05/30/2013 | US20130133784 Method and apparatus for treatment of a rail weld |
| 05/29/2013 | EP2597177A1 Electromagnetic steel sheet and process for production thereof |
| 05/29/2013 | EP2596138A1 Mechanical component and method of surface hardening |
| 05/29/2013 | DE112009000750B4 Stahlgegenstand, Verfahren zur Herstellung des Stahlgegenstands und Vorrichtung zur Herstellung eines Stahlgegenstands Steel object, method of manufacturing the steel article and apparatus for manufacturing a steel article, |
| 05/29/2013 | DE112008000562B4 Stahlplatte mit geringer Heißrissanfälligkeit und einer Streckgrenze von 800 MPa sowie Verfahren zu deren Herstellung Steel plate with low susceptibility to hot cracking and a yield strength of 800 MPa and methods for their manufacture |
| 05/29/2013 | DE102011011258B4 Ofenanlage und Verfahren zur Wärmebehandlung von Werkstücken Furnace system and method for the heat treatment of workpieces |
| 05/29/2013 | CN202955970U End sealing and cooling structure for ends of furnace rollers in furnace roller heat treatment furnace |
| 05/29/2013 | CN202954075U Superaudio frequency electromagnetic induction heating wire drawing annealing furnace |
| 05/29/2013 | CN202954074U Smoke exhaust system of annealing furnace of galvanizing production line |
| 05/29/2013 | CN202954073U Air supply system of annealing furnace of galvanizing production line |
| 05/29/2013 | CN202954072U Special cooling device for closed internal circulation gas shield copper wire vacuum annealing furnace |
| 05/29/2013 | CN202954071U Cooling system of annealing furnace of galvanizing production line |
| 05/29/2013 | CN202954070U Gear shaft quenching device |
| 05/29/2013 | CN202954068U 齿轮轴淬火装置 Gear shaft hardening device |
| 05/29/2013 | CN202954067U Bed guide rail induction quenching device |
| 05/29/2013 | CN202954066U High-temperature vacuum annealing system |
| 05/29/2013 | CN103124841A Piston for an internal combustion engine and method for its production |
| 05/29/2013 | CN103124799A High-strength steel sheet and manufacturing method therefor |
| 05/29/2013 | CN103122406A Method and structure for preventing oil through hole on external cylinder from hardening crack in quenching of axis parts |
| 05/29/2013 | CN103122405A Heat treatment technology of high-strength bolt |
| 05/29/2013 | CN103121081A Method for integrally casting heavy-duty high-horsepower diesel locomotive bogie |
| 05/29/2013 | CN102560076B Method for solving heating by one furnace shared by grain-oriented silicon steel and other steel with enriched oxygen |
| 05/29/2013 | CN102399953B Suspended isothermal normalizing production line |
| 05/29/2013 | CN102294484B Method for manufacturing 18-8 type austenite stainless steel-carbon steel coated steel plate |
| 05/29/2013 | CN102212671B Method for promoting growth of GOSS textures of silicon steel strips by using pulse current |
| 05/29/2013 | CN101939457B High strength galvanized steel sheet with excellent formability and method for manufacturing the same |
| 05/28/2013 | US8448544 Induction hardened blade |
| 05/28/2013 | CA2679556C Internal high hardness type pearlitic rail with excellent wear resistance and rolling contact fatigue resistance and method for producing same |
| 05/28/2013 | CA2461831C Hot-rolled steel strip for high strength electric resistance welding pipe and manufacturing method thereof |
| 05/23/2013 | WO2013073254A1 In-furnace conveyance device and heating furnace |
| 05/23/2013 | WO2013073136A1 Thin steel sheet and process for producing same |
| 05/23/2013 | WO2013073124A1 Hot-rolled steel sheet for high-strength hot-dip galvanized steel sheet or high-strength alloyed hot-dip galvanized steel sheet, and process for producing same |
| 05/23/2013 | WO2013072055A1 Structural component for vehicle seats and process for the production thereof |
| 05/23/2013 | US20130127100 Steel wire rod for high-strength spring excellent in wire drawability, manufacturing method therefor, and high-strength spring |
| 05/23/2013 | US20130127095 Annealing installation with m-shaped strip treatment tunnel |
| 05/23/2013 | US20130126052 Structural stainless steel sheet having excellent corrosion resistance at weld and method for manufacturing same |
| 05/22/2013 | EP2594656A1 High yield ratio high-strength hot-dip galvanized steel sheet with excellent ductility and hole expansion properties, and manufacturing method thereof |
| 05/22/2013 | EP2594655A1 Dual-phase structure oil well pipe and method for producing same |
| 05/22/2013 | EP2594653A1 Ultra high strength screw having a high yield ratio |
| 05/22/2013 | EP2594652A1 Hard flexible trailing arms |
| 05/22/2013 | CN202947484U High-purity aluminum plate ingot heating-deformation-preventive material pad |
| 05/22/2013 | CN202947478U Hydraulic straight pushing type pushing device |
| 05/22/2013 | CN202945310U Two-purpose hot galvanizing unit |
| 05/22/2013 | CN202945294U Cover type annealing convection plate device |
| 05/22/2013 | CN202945293U All-hydrogen severe convection bell-type furnace |
| 05/22/2013 | CN202945292U Arrangement structure of controllable atmosphere continuous heat treating furnace in cold-rolling workshop |
| 05/22/2013 | CN202945291U Gear carburizing and quenching installing and hanging device |
| 05/22/2013 | CN202945290U Bandsaw blade material continuous quenching device |
| 05/22/2013 | CN202945289U Dual-purpose furnace for decontaminating, heating and tempering oil pipe |
| 05/22/2013 | CN202945288U Electrolytic quenching equipment of steel tape spring reed |
| 05/22/2013 | CN202945287U Adjustable inner support device for controlling heat treatment deformation |
| 05/22/2013 | CN202945286U Pressing and quenching rapid change mold of speed reducer and synchronizer |
| 05/22/2013 | CN202945285U Circulating water system for quenching of seamless steel tubes |
| 05/22/2013 | CN202945284U Bandsaw blade material continuous quenching device |
| 05/22/2013 | CN202945282U Bar-material waste heat quenching device |
| 05/22/2013 | CN202945274U Intermediate frequency induction quenching device on working face of numerical control type track road wheel |
| 05/22/2013 | CN202945273U Laser quenching device for heat treatment of neck journal of screw rod drilling tool |
| 05/22/2013 | CN103119189A Steel for carburizing, carburized steel component, and method for producing same |
| 05/22/2013 | CN103119188A Steel for carburizing, carburized steel component, and method for producing same |
| 05/22/2013 | CN103117154A Inverter welding machine power transformer nanocrystalline iron core and preparation method thereof |
| 05/22/2013 | CN103117153A Common mode inductance iron-based nanocrystalline iron core and preparation method of the same |
| 05/22/2013 | CN103114255A Prescription of R5-level mooring chain and heat treatment process |
| 05/22/2013 | CN103114245A Wear-resistant lining board and preparation method thereof |
| 05/22/2013 | CN103114197A Iron wire annealing method of exhaust nail |
| 05/22/2013 | CN103114196A Continuous production technology of chain sleeve material |
| 05/22/2013 | CN103114195A Connected metal link heat treatment process method |
| 05/22/2013 | CN103114194A Thermal treatment process method of high-speed steel drill |
| 05/22/2013 | CN103114193A Thermal treatment process for 9SiCr pin reamer |
| 05/22/2013 | CN103114192A Micro-deformation quenching process of slender-rod like drill bits |
| 05/22/2013 | CN103114191A High-frequency quenching special machine tool for inner wall of thin-wall long pipe |
| 05/22/2013 | CN103114190A Continuous bright solution thermal treatment device for stainless steel welded tube |
| 05/22/2013 | CN103114189A Spring-type quenching clamp assembly |
| 05/22/2013 | CN103114188A Heat treatment method of R5 mooring chain |
| 05/22/2013 | CN103114180A High-precision cold headed wire product treatment process and equipment |
| 05/22/2013 | CN103111346A Quartering hammer drill shank bucket tooth and manufacturing method thereof |
| 05/22/2013 | CN102409138B Process for manufacturing alloy steel for rail frog |
| 05/22/2013 | CN102399974B Heating method for two-phase stainless steel square blanks |
| 05/22/2013 | CN102392121B Tilter |
| 05/22/2013 | CN102337388B Device for correcting out-of-roundness of carburized and quenched gear ring and correction method |
| 05/22/2013 | CN102296173B Deviation correcting device and deviation correcting method for stainless steel bright annealing furnace |
| 05/22/2013 | CN102268531B Method for improving defect of middle streaks of coated and galvanized plates |
| 05/22/2013 | CN102264920B Granulator blades with a high wear resistance and sharpening method thereof |
| 05/22/2013 | CN102239269B Handling machine for handling rails and handling process thereof |
| 05/22/2013 | CN101311287B Grain oriented magnetic steel sheet |