| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 06/05/2013 | EP2598662A1 Mechanical component and method for surface hardening |
| 06/05/2013 | CN202973934U Induction heater system for iron and steel heating |
| 06/05/2013 | CN202968671U Mandrel for carburizing, quenching and shaping synchronizing cone |
| 06/05/2013 | CN202968644U Vacuum heat treatment furnace for surface of metal coiled tape |
| 06/05/2013 | CN202968641U Gear quenching device |
| 06/05/2013 | CN202968639U Straight circular pipe fitting positioning device and straight circular pipe fitting induction quenching equipment |
| 06/05/2013 | CN202968636U Vacuum-annealing thermal treatment furnace for titanium alloy tubes |
| 06/05/2013 | CN202968635U Small-sized workpiece quenching device |
| 06/05/2013 | CN202968634U Water tank for quenching |
| 06/05/2013 | CN202968633U Quenching tank |
| 06/05/2013 | CN202968632U Lifting framework guide mechanism in steel pipe tank type water quenching device |
| 06/05/2013 | CN202968631U Automatic quenching mechanical arm |
| 06/05/2013 | CN202968630U Salt bath furnace |
| 06/05/2013 | CN202968629U Forced convective spheroidizing annealing furnace |
| 06/05/2013 | CN202968628U Internal structure of strong-convection balling annealing furnace |
| 06/05/2013 | CN202968627U Automatic furnace lid lifting device for annealing electric furnace |
| 06/05/2013 | CN202968626U Clamping device for furnace door of annealing furnace |
| 06/05/2013 | CN202968625U Novel mesh belt tempering furnace |
| 06/05/2013 | CN202968624U Integrated heating-quenching inductor with low energy consumption and high efficiency for inner spherical surface and hexagonal spherical path inner cavity |
| 06/05/2013 | CN202968623U Natural gas solution furnace |
| 06/05/2013 | CN202964646U Pickup manipulator of casting and quenching robot for insert ring aluminum piston |
| 06/05/2013 | CN202963703U Welding/gas- quenching integrated stove used for lengthened cutter |
| 06/05/2013 | CN202963027U Heat treatment device producing minor-diameter high-strength high-ductility steel |
| 06/05/2013 | CN103140304A Press-formed product and method for producing same |
| 06/05/2013 | CN103132087A Technology for controlling hardness distribution of material for 23CrNi3Mo drill tool |
| 06/05/2013 | CN103132086A Novel carburizing-constant temperature-quenching process for heavy-duty gears |
| 06/05/2013 | CN103132085A Inner wall surface hardening processing method |
| 06/05/2013 | CN103131974A Bearing sliding door of aluminum foil continuous annealing furnace |
| 06/05/2013 | CN103131973A Slide bar door of aluminum foil continuous annealing furnace |
| 06/05/2013 | CN103131972A Aluminum foil continuous annealing method and aluminum foil continuous annealing furnace |
| 06/05/2013 | CN103131962A High-tenacity low-alloy high-strength steel and quenched-tempered heat treatment method thereof |
| 06/05/2013 | CN103131957A Tool steel material for hedge trimmer blades and preparation method thereof |
| 06/05/2013 | CN103131954A Preparation method of fracture-resistant steel rope bolt |
| 06/05/2013 | CN103131937A Carbide-containing isothermal quenching nodular cast iron and preparation method thereof |
| 06/05/2013 | CN103131930A Method for preparing powdery high-speed steel piece |
| 06/05/2013 | CN103131845A Low carbon martensite heat processing method |
| 06/05/2013 | CN103131843A Stabilization continuous annealing process of low-alloy and high-strength steel cold-rolled sheet used for automobile structural components |
| 06/05/2013 | CN103131836A Stepping type heating furnace for heat treatment |
| 06/05/2013 | CN103131835A Positioning hydraulic lifting device for both ends of induction heating roller way |
| 06/05/2013 | CN103131833A Method of obtaining X80 steel grade two phase organization large deformation pipeline steel |
| 06/05/2013 | CN103131832A Quench machining tool |
| 06/05/2013 | CN103131831A Induction quenching method and device for bottoms of narrow grooves |
| 06/05/2013 | CN103131830A Vacuum oil quenching furnace quenching cooling control system |
| 06/05/2013 | CN103131829A Controllable atmosphere energy-saving type net-belt type carrier roller hardening furnace |
| 06/05/2013 | CN103131828A Constant-speed movement quenching platform device of high-frequency quenching machine |
| 06/05/2013 | CN103131827A Band saw blade continuous high frequency quenching transmission apparatus |
| 06/05/2013 | CN103131826A Steel rail on-line wind-jet quenching heat treatment simulation experiment device |
| 06/05/2013 | CN103131825A Quick heating quenching technique for electroslag smelting casting large section crankshaft |
| 06/05/2013 | CN103131824A Quick cooling quenching technique for electroslag smelting casting large section crankshaft |
| 06/05/2013 | CN103131823A Laser surface hardening treatment method for diaphragm-spring separation finger tip |
| 06/05/2013 | CN103131822A Desk type heat treatment electric heat furnace |
| 06/05/2013 | CN103128507A Method for processing elastic collet with hardness at three different levels |
| 06/05/2013 | CN102703662B Device for quenching ring forging |
| 06/05/2013 | CN102690933B Quenching furnace |
| 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 | 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 | CN102140573B Quenching machine tool for automatically continuously loading and unloading workpieces |
| 06/05/2013 | CN101824584B High-performance granular bainite rail steel and production process |
| 06/05/2013 | CN101639147B Processing method of wear-resisting workpiece for concrete conveying device and wear-resisting workpiece |
| 06/04/2013 | US8456781 TMR device with novel free layer structure |
| 06/04/2013 | US8454767 Heat treatment method, outer joint member, and tripod type constant velocity universal joint |
| 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 | WO2013077050A1 Walking beam heating furnace |
| 05/30/2013 | WO2013075888A1 Method and forming tool for hot forming and press hardening work pieces made of sheet steel, in particular galvanized sheet steel |
| 05/30/2013 | WO2012013324A3 Process and apparatus for humidifying a combustible gas |
| 05/30/2013 | US20130133784 Method and apparatus for treatment of a rail weld |
| 05/30/2013 | CA2856679A1 Method and forming tool for hot forming and press hardening workpieces of sheet steel, in particular galvanized workpieces of sheet steel |
| 05/29/2013 | EP2596142A2 Method for heat-treating a cast component |
| 05/29/2013 | EP2596138A1 Mechanical component and method of surface hardening |
| 05/29/2013 | EP2595770A1 Forming tool and method for hot forming and partially press hardening a workpiece made of sheet steel |
| 05/29/2013 | CN202955985U Novel heat-treatment furnace-charging cushion block |
| 05/29/2013 | CN202955970U End sealing and cooling structure for ends of furnace rollers in furnace roller heat treatment furnace |
| 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 | 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 | CN202954065U Optical fiber laser quenching device |
| 05/29/2013 | CN202953757U Burial pit cover carriage of special steel mill |
| 05/29/2013 | CN202951602U Slit nozzle cleaning device of quenching machine |
| 05/29/2013 | CN103124799A High-strength steel sheet and manufacturing method therefor |
| 05/29/2013 | CN103122440A Stress relieving machine for sintered hard alloys |
| 05/29/2013 | CN103122436A Steel plate for normalizing type low-temperature pressure vessel at-70 DEG C |
| 05/29/2013 | CN103122433A Ultrahigh-carbon type bearing steel |
| 05/29/2013 | CN103122405A Heat treatment technology of high-strength bolt |
| 05/29/2013 | CN103121102A Sintering tempering method of neodymium iron boron magnetic materials |
| 05/29/2013 | CN103121101A Even sintering temper technology of neodymium iron boron |
| 05/29/2013 | CN103121081A Method for integrally casting heavy-duty high-horsepower diesel locomotive bogie |
| 05/29/2013 | CN102643962B Heat treatment technology for rapid annealing of steel T91 |
| 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 | CN102260820B High-toughness alloy steel, and heat treatment device thereof |
| 05/29/2013 | CN102140570B Quenching oil for bearings and preparation method thereof |
| 05/23/2013 | WO2013073254A1 In-furnace conveyance device and heating furnace |
| 05/23/2013 | WO2013072055A1 Structural component for vehicle seats and process for the production thereof |
| 05/23/2013 | US20130127095 Annealing installation with m-shaped strip treatment tunnel |