| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 09/11/2013 | CN103290306A Wear, corrosion and rust resistant metal pipeline |
| 09/11/2013 | CN103290202A Production method for improving yield ratio and bore expansion of 1000MPa-level high-strength steel |
| 09/11/2013 | CN103290198A Steel ball quenching device with temperature adjustment function |
| 09/11/2013 | CN103290197A Automatic high-frequency needle burning machine |
| 09/11/2013 | CN103290196A Method for cooling steel tubes after normalizing |
| 09/11/2013 | CN103290194A A manufacture process for a high stress suspension spring |
| 09/11/2013 | CN103290190A 无取向硅钢及其制造方法 Non-oriented silicon steel and its manufacturing method |
| 09/11/2013 | CN103290189A X90Q medium thick-wall seamless steel tube and method for manufacturing same |
| 09/11/2013 | CN103290188A Method for controlling martensite/austenite structure in process of straightening WB36 steel pipes |
| 09/11/2013 | CN103290182A Thermal treatment process of low-alloy steel casting |
| 09/11/2013 | CN103290181A Supersonic gas (fog) scanning quenching nozzle |
| 09/11/2013 | CN103290180A Movable cover plate of quenching water tank |
| 09/11/2013 | CN103290179A Thermal treatment method for medium carbon structural alloy steel with low hardenability |
| 09/11/2013 | CN103290178A Hidden surface laser impact strengthening method and apparatus thereof |
| 09/11/2013 | CN103290177A Full-automatic high-energy laser surface hardening system |
| 09/11/2013 | CN103290176A Multi-irradiation laser quenching method and device |
| 09/11/2013 | CN103290175A Manufacturing method of automobile hub |
| 09/11/2013 | CN103290174A Steel structure production line additionally with modification treatment and anti-corrosion treatment |
| 09/11/2013 | CN103290173A Cover-type deterioration anti-corrosion or heat treatment device |
| 09/11/2013 | CN103286475A Flux-cored wire for surfacing repair and cold hardening resistance for hot rolled support roll |
| 09/11/2013 | CN102796850B Large pit gas type thermal treatment furnace |
| 09/11/2013 | CN102569638B Adhesive giant magnetostrictive material with laminated structure height (111) orientation and preparation method thereof |
| 09/11/2013 | CN102560052B Heat treatment method for steel pieces with high impact strength and application of steel pieces |
| 09/11/2013 | CN102317490B Carburized steel part |
| 09/11/2013 | CN102312078B Heat treatment furnace with movable furnace cover |
| 09/11/2013 | CN102251167B Manufacture method of slip sheet of air conditioner compressor |
| 09/06/2013 | WO2013129686A1 Heating coil, heat treatment apparatus, and heat treatment method for elongated workpiece |
| 09/06/2013 | WO2013127515A1 Method for manufacturing a steel product |
| 09/06/2013 | WO2013030157A3 Method for producing a press-hardened molded part, and press-hardening tool |
| 09/05/2013 | US20130228253 High toughness secondary hardening steel |
| 09/05/2013 | DE102012203329A1 Increasing tolerable surface pressure of rolling bearing carrier of sulfur-alloyed steel component, by remelting surface layer of rolling bearing carrier using an electron beam, where component rotates about rotational axis of the carrier |
| 09/04/2013 | EP2634289A1 Antioxidant and method for producing metal material |
| 09/04/2013 | EP2634282A1 Steel sheet for can, and process for producing same |
| 09/04/2013 | EP2634279A1 Steel for surface hardening for machine structural use, and steel component for machine structural use and process for producing same |
| 09/04/2013 | EP2634272A1 Method and device for controlling furnace pressure of continuous annealing furnace |
| 09/04/2013 | EP2634270A1 Annealing separation agent for producing grain-oriented silicon steel with smooth surface and good magnetic property |
| 09/04/2013 | EP2633091A1 Device for the localized heating of parts of coated metal pipes and of parts of their protective coating |
| 09/04/2013 | CN203174169U Middle convection plate of bell type annealing furnace |
| 09/04/2013 | CN203174167U Strip-steel loop steel wire rope swing door |
| 09/04/2013 | CN203174164U Inner ring jackscrew hole annealing device with jackscrew insert bearing |
| 09/04/2013 | CN203174162U Special machine tool for high-frequency quenching of inner wall of thin-wall long pipe |
| 09/04/2013 | CN203174159U Rolled coil end face bepowdering device |
| 09/04/2013 | CN203174158U Purging device with liquid steel quenching part |
| 09/04/2013 | CN203174157U Transverse-magnetic heat treatment furnace for magnetic core |
| 09/04/2013 | CN203174156U Annealing furnace inlet sealing device |
| 09/04/2013 | CN203174155U Energy-saving annealing furnace of castings |
| 09/04/2013 | CN203174154U Adjustable support frame for preventing motor from swinging and dropping due to deceleration |
| 09/04/2013 | CN203174153U Peeping device for annealing furnace |
| 09/04/2013 | CN203174152U Strip steel temperature detection device of galvanizing unit annealing furnace |
| 09/04/2013 | CN203174151U Step-type heat treatment tempering furnace |
| 09/04/2013 | CN203174150U High-strength and heat-resisting alloy steel hollow furnace bottom roller |
| 09/04/2013 | CN203174149U Cooling production line of non-quenched and tempered steel after forging |
| 09/04/2013 | CN103282548A Antioxidant and method for producing metal material |
| 09/04/2013 | CN103282532A Hot dip plated steel sheet having excellent plating adhesiveness and method of manufacturing the same |
| 09/04/2013 | CN103280288A Manufacturing method of high-coercivity samarium-cobalt-based permanent magnet materials |
| 09/04/2013 | CN103276321A Steel for anti-corrosive plastic die and production method for same |
| 09/04/2013 | CN103276313A High-speed steel roll collar and heat treatment method |
| 09/04/2013 | CN103276283A Anti-corrosive and wear-resistant pipeline for delivering minerals |
| 09/04/2013 | CN103276282A Fabrication method of anti-corrosive and wear-resistant pipeline for delivering minerals |
| 09/04/2013 | CN103276281A Preparation method for wear resistant metal pipeline with internal anticorrosive coating |
| 09/04/2013 | CN103276258A High-strength cast aluminum-silicon alloy material and application thereof to hydraulic shell |
| 09/04/2013 | CN103276187A Process for improving comprehensive mechanical performances of weld of high-frequency straight welded tube |
| 09/04/2013 | CN103276186A Rotating-shaft quenching device |
| 09/04/2013 | CN103276185A Shaft component vibration induction heating method and apparatus |
| 09/04/2013 | CN103276184A Heat treatment process for high-speed steel plane cutter |
| 09/04/2013 | CN103276183A Heat treatment process for high-speed steel sheet side and face milling cutter |
| 09/04/2013 | CN103276182A Novel technique for high-frequency heat treatment of lathe tool |
| 09/04/2013 | CN103276181A Heat treatment process of austempered ductile iron bushing |
| 09/04/2013 | CN103276180A On-line quenching and tempering technology of seamless steel tube |
| 09/04/2013 | CN103276176A Rotary chain heat treatment technology |
| 09/04/2013 | CN103276170A Air circulation system of aging furnace |
| 09/04/2013 | CN103276169A Nano-isolation agent for preventing high-temperature surface oxidation of stainless steel |
| 09/04/2013 | CN103276168A Air cooling machine for quenching |
| 09/04/2013 | CN103276167A Quenching device of circular-section granular materials |
| 09/04/2013 | CN103276166A Heating method before forging for manufacturing engine connecting rod by powder metallurgy |
| 09/04/2013 | CN103276165A Annular furnace energy-saving operating method |
| 09/04/2013 | CN103276164A High-strength and high-toughness heat treatment method of medium-carbon silicon-manganese-chromium-nickel series low alloy steel |
| 09/04/2013 | CN103276163A Method for eliminating net-shaped and chain alloy carbides generated from steel containing Cr and Ni during heat treatment |
| 09/04/2013 | CN103276162A Heat-treatment machining method of wear-resistant medium alloy steel castings |
| 09/04/2013 | CN103276161A Novel high temperature quenching process of 45# and 40Cr steels |
| 09/04/2013 | CN103276160A Piston combustion chamber throat reinforcing method |
| 09/04/2013 | CN103276159A Method and device for enhancing wall of fastening hole by underwater shock of annular laser |
| 09/04/2013 | CN103276158A Complete controllable plasma arc metal surface heat treatment equipment |
| 09/04/2013 | CN103276157A Forging heat treatment cooling device and cooling method |
| 09/04/2013 | CN103276156A Workpiece heating and well burning time prediction method based on gas consumption rate measurement |
| 09/04/2013 | CN102851462B 热处理炉 Heat treatment furnace |
| 09/04/2013 | CN102851459B Stepping automatic feeding device of heat-treatment furnace |
| 09/04/2013 | CN102776450B Quenching heat treatment process for hot work die steel with low heat resistance |
| 09/04/2013 | CN102747196B Supporting device preventing deformation of circular workpieces |
| 09/04/2013 | CN102728642B Method for preparing high-precision large-cantilever radiator section bar by utilization of umbrella-shaped die |
| 09/04/2013 | CN102719749B Steel for railway axle and production process for steel |
| 09/04/2013 | CN102719631B Numerical control machine tool capable of quenching and tempering simultaneously at high frequency |
| 09/04/2013 | CN102560014B Heat treatment device and heat treatment method for rapid heating in pulsed magnet field |
| 09/04/2013 | CN102492806B Segmental variable speed quenching method |
| 09/04/2013 | CN102352845B 20CrMnTi compressor blade through composite surface modification and preparation process thereof |
| 09/04/2013 | CN102296166B Method for preventing surface oxidation in thermal treatment process of investment steel casting |
| 09/04/2013 | CN102286692B Hardened and tempered low-temperature steel and manufacture method thereof |
| 09/04/2013 | CN102233364B Martensite air valve steel bar production method |
| 09/03/2013 | US8524017 Process or manufacturing components obtained by sintering of Co-Cr-Mo alloys having improved ductility at high temperatures |
| 08/29/2013 | US20130220488 Method for carburizing steel components |