| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 04/03/2013 | CN103016194A Double-cooling oil chamber welded type integrally-steel-forged internal combustion engine piston and fabricating method thereof |
| 04/03/2013 | CN103014803A Small hole strengthening method with combination of laser shock and micro-arc oxidation |
| 04/03/2013 | CN103014770A Manufacturing method of breaking hammer head for aluminum electrolysis cell |
| 04/03/2013 | CN103014726A Heat treatment method of universal joint cross shaft |
| 04/03/2013 | CN103014725A Welded tube for calorizing and laser short processing |
| 04/03/2013 | CN103014714A Water-based environmentally-friendly antirust agent used before electrical steel decarburization and preparation method thereof |
| 04/03/2013 | CN103014573A Dual-furnace base cover annealing method for titanium and titanium alloy |
| 04/03/2013 | CN103014563A Multi-element micro-alloy strengthening steel shot/sand and preparation process thereof |
| 04/03/2013 | CN103014554A Low-yield-ratio high-tenacity steel plate and manufacture method thereof |
| 04/03/2013 | CN103014548A Alloy steel and preparation method thereof |
| 04/03/2013 | CN103014547A Preparation method of alloy steel |
| 04/03/2013 | CN103014539A High-strength and high-toughness steel plate with 700 Mpa-level yield strength and preparation method of steel plate |
| 04/03/2013 | CN103014533A Technique for prolonging fatigue life of 50CrVA plate spring |
| 04/03/2013 | CN103014529A Low-carbon martensite cast steel material for railway wagon coupler |
| 04/03/2013 | CN103014521A High-hardness high-toughness wear-resistant steel and production method thereof |
| 04/03/2013 | CN103014519A Excavator silicon-manganese alloy steel bucket tooth cast and processing process thereof |
| 04/03/2013 | CN103014481A Multielement low alloy bainite spheroidal graphite cast iron grinding ball and manufacturing method thereof |
| 04/03/2013 | CN103014480A Multielement microalloy low chromium white iron grinding ball and manufacturing method thereof |
| 04/03/2013 | CN103014308A Galvanized vertical annealing furnace |
| 04/03/2013 | CN103014306A Novel heat treatment process of drilling rod welding line of bainite/martensite mixed steel material |
| 04/03/2013 | CN103014304A Plate shape control method for steel plate quenching |
| 04/03/2013 | CN103014303A Production method of thin and long thin-plate type part |
| 04/03/2013 | CN103014302A Partial annealing device and annealing method of bearing sleeve ring |
| 04/03/2013 | CN103014301A Laser-quenching technology for iron-based piston ring groove sides |
| 04/03/2013 | CN103014299A Electric impulse treatment method for improving heat treatment efficiency and structure quality of high-speed steel roll |
| 04/03/2013 | CN103014298A Supporting roll inverter power supply differential temperature quenching device and heat treatment method |
| 04/03/2013 | CN103014297A Heat treatment technology for abrasion-resistant gear |
| 04/03/2013 | CN103014294A Heat treatment technology of bar shearing die blade |
| 04/03/2013 | CN103014293A Positioning device and induction hardening equipment for straight round pipe fitting |
| 04/03/2013 | CN103014291A Multi-pipe continuous induction annealing apparatus |
| 04/03/2013 | CN103014286A Thermal treatment process of slender axle with key groove |
| 04/03/2013 | CN103014285A Manufacturing method of mirror surface oriented silicon steel with good magnetic performance and annealing parting agent |
| 04/03/2013 | CN103014284A Process for modifying GCr15 steel for manufacturing tapered roller |
| 04/03/2013 | CN103014283A Manufacture method of extremely-thick steel plate for hydropower station through continuous-cast billet |
| 04/03/2013 | CN103014280A Machining process capable of improving mechanical strength of thin-walled workpiece |
| 04/03/2013 | CN103014277A Method for controlling austenitic stainless steel surface grain boundary structure |
| 04/03/2013 | CN103014276A Micro-hole strengthening method combining cone pressure and laser impact |
| 04/03/2013 | CN103014273A Electric heating and slow-cooling device with heat treatment function |
| 04/03/2013 | CN103014272A Air-cooling chamber structure capable of improving cooling uniformity |
| 04/03/2013 | CN103014271A Coating for preventing bearing steel casting blank from being bonded |
| 04/03/2013 | CN103014270A Steel and iron high temperature oxidation-resistant coating and preparation method thereof |
| 04/03/2013 | CN103014269A High-frequency treatment device for diaphragm |
| 04/03/2013 | CN103014268A Smoke removing and fire extinguishing device for oil quenching tank |
| 04/03/2013 | CN103014267A Vacuum air-quenching furnace cooling air door |
| 04/03/2013 | CN103014266A Polymer quenching solution |
| 04/03/2013 | CN103014265A Spheroidizing annealing process for bearing steel |
| 04/03/2013 | CN103014264A Control system of spheroidizing annealing furnace |
| 04/03/2013 | CN103014263A Temperature control system of spheroidizing annealing furnace |
| 04/03/2013 | CN103014262A Carbon tool steel spheroidizing annealing process |
| 04/03/2013 | CN103014261A Link plate balling and annealing technology |
| 04/03/2013 | CN103014260A Method for eliminating low-temperature aging brittleness of duplex stainless steel |
| 04/03/2013 | CN103014259A After-forging hydrogen diffusion and annealing method of forging material |
| 04/03/2013 | CN103014258A Annealing processing system |
| 04/03/2013 | CN103014257A Continuous annealing furnace |
| 04/03/2013 | CN103014256A Annealing furnace warming process |
| 04/03/2013 | CN103014255A Annealing wire rewinding machine for copper clad aluminum wire |
| 04/03/2013 | CN103014254A Heat treatment processing process for drive plate |
| 04/03/2013 | CN103014253A Thermal treatment method of 60Si2Mn steel subjected to friction welding |
| 04/03/2013 | CN103014252A Thermal treatment process of rustproof steel plate |
| 04/03/2013 | CN103014251A Heat treatment process of anticorrosion steel plate |
| 04/03/2013 | CN103014250A Pollution-free composite adsorption and restriction layer and pollution-free laser shock peening method |
| 04/03/2013 | CN103014249A Laser melting quenching process capable of greatly increasing RuT300 surface hardness |
| 04/03/2013 | CN103014248A Welded tube for strengthening welded joint by laser shock |
| 04/03/2013 | CN103014247A Furnace door bisection mechanism for vertical heat treatment furnace |
| 04/03/2013 | CN103014246A Metal heat treatment deformation cooling calibration synchronization method |
| 04/03/2013 | CN103014245A Heat treatment workpiece correction treatment method |
| 04/03/2013 | CN103009702A W6Mo5Cr4V2/Q345 explosive welding composite material |
| 04/03/2013 | CN103008994A Production method for dedicated steel ball for bearing of high-speed high-precision numerical control machine tool |
| 04/03/2013 | CN103008886A Self-adaptive laser shock welding method and device |
| 04/03/2013 | CN103008665A Preparation technology for plug valve clack |
| 04/03/2013 | CN103008663A Powder metallurgy preparing method for valve rod of diaphragm valve |
| 04/03/2013 | CN103008407A Cooling and straightening device for metal thermal treatment |
| 04/03/2013 | CN103008386A Preparation method of thickness-diameter ratio longitudinal titanium and titanium alloy welded pipe |
| 04/03/2013 | CN103008202A Manufacturing method for aluminum alloy automobile hub |
| 04/03/2013 | CN103008062A Low-carbon high-chromium composite swing hammer |
| 04/03/2013 | CN102517430B Strong wind cooling system for medium plate heat treatment |
| 04/03/2013 | CN102433523B Deformation annealing process for Er-containing aluminum magnesium alloy plates |
| 04/03/2013 | CN102424898B Amplitude-modulated variable-frequency pulse current annealing treatment device for amorphous metal fibers |
| 04/03/2013 | CN102329924B Surface treatment method of guide rail of elevator |
| 04/03/2013 | CN102312168B Prehardening plastic die steel plate and manufacture method thereof |
| 04/03/2013 | CN102268602B 3Cr oil well pipe and production method thereof |
| 04/03/2013 | CN102260771B Vertical resistance-band rapid heating furnace |
| 04/03/2013 | CN102230069B Heat treatment process for toughening wheel steel |
| 04/03/2013 | CN102226256B Preparation method of Fe66Co10Mo4P4C4B4Si3 block soft-magnetic nanocrystalline/amorphous composite material |
| 04/03/2013 | CN102212656B Induction hardening system and method |
| 04/03/2013 | CN102181794B Hardening and tempering high-strength steel plate for wood based panel equipment and production method of tempering high-strength steel plate |
| 04/03/2013 | CN102102163B Martensitic stainless steel and manufacturing method thereof |
| 04/03/2013 | CN102010970B Device for hardening rails |
| 04/02/2013 | US8409372 Thermomechanical methodology for stabilizing shape memory alloy (SMA) response |
| 04/02/2013 | CA2742949C Device for hardening of rails |
| 04/02/2013 | CA2742939C Device for hardening of rails |
| 04/02/2013 | CA2742873C Device for hardening of rails |
| 03/28/2013 | WO2013043246A1 Method of laser hardening a surface for wear and corrosion resistance with overlapping hardened bands |
| 03/28/2013 | WO2013041601A1 Device and method for heating an object in an intense magnetic field |
| 03/28/2013 | WO2013041541A1 Quenched and partitioned high-carbon steel wire |
| 03/28/2013 | US20130074995 Method and device for wire patenting by radiation-convection heat transfer |
| 03/28/2013 | DE10291914B3 Vorrichtung, um eine Seltenerdmetall-Legierung einem Hydrierungsverfahren zu unterziehen Device to undergo a rare earth alloy a hydrogenation |
| 03/27/2013 | EP2573194A1 Method and device for heat treating rails |
| 03/27/2013 | CN202836219U Hearth bottom roller |
| 03/27/2013 | CN202833581U Rotating shaft used for pipe fitting quenching machine |