| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 04/15/2009 | EP2048257A1 Free-cutting stainless steel and process for producing the same |
| 04/15/2009 | EP2048250A1 Sealing apparatus and strip plate continuously annealing equipment |
| 04/15/2009 | EP1718118B1 Method and device for induction heating and hardening apparatus |
| 04/15/2009 | CN201220955Y Protector for rotating high temperature annealing furnace door drive clutch |
| 04/15/2009 | CN201220954Y Furnace pressure protector |
| 04/15/2009 | CN201220953Y Large-sized quenching machine tool inductor |
| 04/15/2009 | CN201220952Y Spiral feeding apparatus |
| 04/15/2009 | CN101410537A Process for producing seamless two-phase stainless-steel pipe |
| 04/15/2009 | CN101410534A Quality warranty system in induction heat treatment facilities |
| 04/15/2009 | CN101409340A Heat-treatment method for magnesium power cell anode sheet material |
| 04/15/2009 | CN101407899A Composite type annealing furnace |
| 04/15/2009 | CN101407855A Method for improving stress corrosion resistance of integral forging low-voltage rotor of nuclear steam turbine |
| 04/15/2009 | CN101407854A High polymer quenching solution, preparation thereof and quenching method for steel products |
| 04/15/2009 | CN101407853A Quenching apparatus for detecting hardenability of aluminum alloy ultra-thick plate |
| 04/15/2009 | CN101407019A Process for manufacturing corrosion resistant low-chromium tubing and casing in CO2 and H2S coexisted environment |
| 04/15/2009 | CN101407017A Technique for processing welded structure cement carbon quenching gear |
| 04/15/2009 | CN100478482C Fe-base amorphous alloy thin strip of excellent soft magnetic characteristic, iron core produced therefrom and master alloy for quench solidification thin strip production for use therein |
| 04/15/2009 | CN100478481C Martensitic stainless steel with excellent machinability |
| 04/15/2009 | CN100478457C Method for preparing iron-nickel alloy strip |
| 04/15/2009 | CN100478456C System and method for monitoring laser shock processing |
| 04/09/2009 | WO2009045147A1 Rolling element or ring formed from a bearing steel |
| 04/09/2009 | WO2009045146A1 Heat-treatment process for a steel |
| 04/09/2009 | WO2005060518A3 Stress free steel and rapid production of same |
| 04/09/2009 | US20090090437 Method for manufacturing a wrought metal plate product having a gradient in engineering properties |
| 04/08/2009 | EP2045340A1 Comb-shaped laminated cylinder head for an inducer with a magnetic field passing through it for reheating strips of metal |
| 04/08/2009 | EP2045339A1 Workpiece for rolling wear stress made of through hardened steel and method of heat treatment |
| 04/08/2009 | EP2044233A1 Implant having high fatigue resistance, delivery system, and method of use |
| 04/08/2009 | EP2044228A1 Seamless precision steel tubes with improved isotropic toughness at low temperature for hydraulic cylinders and process for obtaining the same |
| 04/08/2009 | EP1148850B2 Expandable intervertebral spacer |
| 04/08/2009 | CN201218640Y Combined double door deep cooling box |
| 04/08/2009 | CN201217670Y Intermediate-frequency quenching inductor for caterpillar excavating machine expansion wheel |
| 04/08/2009 | CN101403120A Anti-pressure and abrasion-proof stainless steel processing technique |
| 04/08/2009 | CN101403075A Wide-thick steel plate with yield strength of 460Mpa for bridge and method of manufacturing the same |
| 04/08/2009 | CN101403074A Novel chromium system hot die steel and thermal treatment process thereof |
| 04/08/2009 | CN101403072A Multielement low-alloy water quenching abrasion resistant steel |
| 04/08/2009 | CN101403071A High-alloy hot work steel and producing method thereof |
| 04/08/2009 | CN101403032A Thermal treatment process for quick cutting steel composite roll |
| 04/08/2009 | CN101403031A Weldless steel tube hole shrinkage |
| 04/08/2009 | CN101403030A On-line laser machining apparatus for strengthening and toughening treatment of steel rail surface |
| 04/08/2009 | CN101403029A Method and device for quenching traction arc face location of end pin hole of coupler hook body |
| 04/08/2009 | CN101403028A Processing method for optimizing stainless steel |
| 04/08/2009 | CN101403027A Automatic quenching apparatus for workpiece on quenching and tempering product line |
| 04/08/2009 | CN101403026A Quenching experimental device |
| 04/08/2009 | CN101403025A Heating method for silicon-containing vanadium steel-containing casting blank |
| 04/08/2009 | CN101402447A Method for processing high-purity low-dew point hydrogen-nitrogen mixture gas |
| 04/08/2009 | CN101402167A Manufacturing method of stainless steel band for flexible thin-film solar cell |
| 04/08/2009 | CN101402156A Laser eyeglass protection method and apparatus based on laser composite life-prolonging technique |
| 04/08/2009 | CN100477418C Laser hardening tool |
| 04/08/2009 | CN100476034C Device for increasing non smooth surface of metallic workpiece |
| 04/08/2009 | CN100475983C Bright annealing furnace |
| 04/07/2009 | US7514035 Versatile high velocity integral vacuum furnace |
| 04/07/2009 | US7513958 Hydrocarbon gas mixture for the under-pressure carburizing of steel |
| 04/07/2009 | US7513121 Apparatus and method for improving work surface during forming and shaping of materials |
| 04/02/2009 | WO2009042100A2 Crack-free erosion resistant coatings on steels |
| 04/02/2009 | WO2009041729A1 Insulation structure of induction heating coil |
| 04/02/2009 | WO2009041665A1 Method for refining texture of ferrous material, and ferrous material and blade having microscopic texture |
| 04/02/2009 | WO2009041117A1 Jig for vacuum heat treatment and method of vacuum heat treatment |
| 04/02/2009 | WO2009041025A1 Quenching method and device of ring-shaped article |
| 04/02/2009 | US20090084472 Organic coating compositions for aluminizing metal substrates, and related methods and articles |
| 04/02/2009 | DE102007047016A1 Inexpensive, high-strength, martensitically hardenable steel, useful for producing automobile fuel injector components, has low alloying element content and is free of cobalt |
| 04/01/2009 | EP1795047A4 Metal forming apparatus and process with resistance heating |
| 04/01/2009 | EP1611260A4 Method and apparatus for strengthening of powder metal gears by ausforming |
| 04/01/2009 | EP1325966B1 Super-high strength cold-rolled steel sheet and method for production thereof |
| 04/01/2009 | CN201214984Y Fixed device for boring drill for light-duty fireproof brick inner lining furnace wall of annealing furnace |
| 04/01/2009 | CN101400809A 滚动轴承 Rolling |
| 04/01/2009 | CN101398123A WS2/MoS2 solid lubrication multilayer film and method for making same |
| 04/01/2009 | CN101397637A 13Cr high anti-carbon dioxide and trace hydrogen sulfide corrosion tubing and casing steel and method for producing the same |
| 04/01/2009 | CN101397635A 12Cr2Mo1R thick steel plate for equipment contacting hydrogen and method for producing the same |
| 04/01/2009 | CN101397633A Sulphur and copper-containing free-cutting stainless steel and preparation method thereof |
| 04/01/2009 | CN101397632A Multielement low-alloy water quenching abrasion resistant steel |
| 04/01/2009 | CN101397630A Cold-work tool steel article |
| 04/01/2009 | CN101397603A Manufacturing method of metal mould |
| 04/01/2009 | CN101397602A Quenching apparatus for tool edge |
| 04/01/2009 | CN101397520A 3Cr13//FeS composite solid lubrication film and preparation method thereof |
| 04/01/2009 | CN101396945A Art plate and pipe processing technique |
| 04/01/2009 | CN100473762C Hot processing method for removing decarbonizing of steel surface |
| 04/01/2009 | CN100473737C Wear-resistant bainite cast steel liner plate and manufacture process thereof |
| 03/31/2009 | US7510779 Low-sulfur article having a platinum aluminide protective layer and its preparation |
| 03/26/2009 | US20090082117 Hollow power transmission shaft and method of manufacturing the same |
| 03/26/2009 | US20090081478 Crack-Free Erosion Resistant Coatings on Steels |
| 03/26/2009 | US20090078343 Earthboring tool and method of casehardening |
| 03/25/2009 | EP2039786A1 Cooling method of steel pipe |
| 03/25/2009 | EP2039746A1 Refrigerator oil, compressor oil composition, hydraulic fluid composition, metalworking fluid composition, heat treatment oil composition, lubricant composition for machine tool and lubricant composition |
| 03/25/2009 | EP2038435A2 Method for manufacturing spheroidal cast iron mechanical components |
| 03/25/2009 | EP1273670B1 Method for manufacturing high strength bolt excellent in resistance to delayed fracture and to relaxation |
| 03/25/2009 | CN201212052Y Slow cooling rate treatment device after bevel gear shaft end annealing |
| 03/25/2009 | CN201212049Y Automatic heating quenching vacuum atmosphere oven |
| 03/25/2009 | CN201212048Y Salt bath furnace |
| 03/25/2009 | CN201212047Y Full-automatic high frequency quick-speed annealing machine |
| 03/25/2009 | CN201212046Y Vacuum annealing furnace |
| 03/25/2009 | CN101392649A Antiwear laser strengthened pick and its processing method |
| 03/25/2009 | CN101392379A Low pressure ion carburizing furnace |
| 03/25/2009 | CN101392361A Nitrocarburizing method of martensitic stainless steel and preparation method thereof |
| 03/25/2009 | CN101392353A High manganese and low chromium type high strength and toughness hot-work die steel and preparation method thereof |
| 03/25/2009 | CN101392350A Extremely low yield point steel plate and production method thereof |
| 03/25/2009 | CN101392349A Super high chromium wear and corrosion resistant cast iron and preparation technology thereof |
| 03/25/2009 | CN101392317A Heat treatment method of 35CrMnSiA alloy constructional steel |
| 03/25/2009 | CN101392316A Quenching anti-deformation device |
| 03/25/2009 | CN101392314A Heat treating process of low alloy steel trolley sawtooth casting |
| 03/25/2009 | CN101392313A Method for shortening high carbon steel aging time through online thermal insulation |