| Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082) |
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| 03/19/2008 | EP1900838A1 Steel for mechanical structure excelling in strength, ductility and toughness and process for producing the same |
| 03/19/2008 | EP1900830A1 Method and apparatus for heat treatment of steel rail |
| 03/19/2008 | EP1900256A1 Induction furnace for treating electrically conductive strips, sheets, plates, and field winding therefor |
| 03/19/2008 | EP1900255A1 Induction furnace for treating electrically conductive strips, sheets, plates, and field winding therefor |
| 03/19/2008 | EP1899490A1 Austenitic stainless steel strip having a bright surface finish and excellent mechanical properties |
| 03/19/2008 | EP1735116B1 Method for producing mat-surfaced austenitic stainless steel straps |
| 03/19/2008 | CN201037148Y Roller type quenching pressure disk |
| 03/19/2008 | CN101144376A Continuous expansion tube |
| 03/19/2008 | CN101144142A Heat treatment method of high-strength high-toughness hot continuous rolling steel plate for engineering machine |
| 03/19/2008 | CN101144138A Steel plate for low temperature pressure container and producing method thereof |
| 03/19/2008 | CN101144116A Casting blank heating method for controlling surface to generate ferric oxide structure |
| 03/19/2008 | CN101144115A Sealing device for continuous heat treatment furnace |
| 03/19/2008 | CN101144114A Heat treatment method capable of increasing high temperature loose resisting capability of high temperature alloy spring |
| 03/19/2008 | CN101144113A Technique for producing deep-drawing cold-rolled plate based on CSP technique |
| 03/18/2008 | US7344609 Quality, long service life structural materials having relaxed residual stress patterns and reformed grain boundaries |
| 03/18/2008 | US7344608 Method and apparatus for heat-treating an article and a fixture for use in the same |
| 03/13/2008 | WO2008028638A1 Method for the production of a concrete conveying pipe |
| 03/13/2008 | US20080060728 Method of manufacturing a nonoriented electromagnetic steel sheet |
| 03/13/2008 | US20080060727 Ferrous seal sliding parts and producing method thereof |
| 03/13/2008 | US20080060726 Method and apparatus for heat treatment of steel rail |
| 03/13/2008 | DE202007014043U1 Vorrichtung zur Wärmerückgewinnung bei indirekt, mit einer Mehrzahl von Strahlrohrbrennern beheizten Öfen Heat recovery apparatus for indirect, with a plurality of jet burners fired furnaces |
| 03/12/2008 | EP1897961A1 Hot-forged products excellent in fatigue strength, process for production thereof, and machine structural parts |
| 03/12/2008 | EP1551591A4 Seam-welded air hardenable steel tubing |
| 03/12/2008 | CN201033798Y Carbide annealing furnace |
| 03/12/2008 | CN201033797Y Carbide annealing furnace |
| 03/12/2008 | CN201033796Y Fuel oil combined type case heat treatment furnace |
| 03/12/2008 | CN201033795Y Heat-treating facility for recovering plasticity of A stainless steel-low steel explosion weldering clad plate |
| 03/12/2008 | CN201033794Y Heat treatment fast cooling injector |
| 03/12/2008 | CN201033793Y Steel pipe water quenching heating-furnace out inclined roller way |
| 03/12/2008 | CN101142457A Device for supporting articles to be fired that has a defined compensation of thermal expansions |
| 03/12/2008 | CN101139696A Method for nitriding iron and steel in salt bath |
| 03/12/2008 | CN101139652A Off-line prediction method for bell-type furnace steel roll annealing process |
| 03/12/2008 | CN101139651A Method for forecasting steel plate recrystallization temperature under random short time condition |
| 03/12/2008 | CN101139650A Middle-small modulus gear high-frequency hardening production line automatic control system and method |
| 03/12/2008 | CN101139649A Intermediate frequency heat treating continuous furnace for shaft products |
| 03/12/2008 | CN101138817A Device for controlling welding stress deformation along with soldering impact, revolving and extrusion pressing |
| 03/12/2008 | CN100375208C Heat treatment system |
| 03/12/2008 | CN100374586C High-strength hot-rolled steel sheet excellent in shape fixability and method of producing the same |
| 03/12/2008 | CN100374585C High tensile strength hot dip plated steel sheet and method for production thereof |
| 03/12/2008 | CN100374583C Method for producing Fe-Ni based alloy thin plate |
| 03/12/2008 | CN100374373C Prepn process of magnesia for silicon steel |
| 03/11/2008 | US7341637 Overcoating with solid lubricant; cold rolling |
| 03/06/2008 | WO2008026459A1 Pulley for continuously variable transmission |
| 03/06/2008 | US20080053580 Method for Production of Sheet of Austenitic Iron/Carbon/Manganese Steel and Sheets Produced Thus |
| 03/06/2008 | US20080053578 Without warping or deformation in heat treatment with even and high hardness |
| 03/06/2008 | US20080053576 Press formability by regulating a retained austenite ratio and accelerates the formation of oxides by regulating a hydrogen concentration and a dew point in annealing before plating; automobile |
| 03/05/2008 | EP1563103B1 Method for making an abrasion resistant steel plate and steel plate obtained |
| 03/05/2008 | EP1516937B1 High-strength cold rolled steel sheet and process for producing the same |
| 03/05/2008 | CN201032387Y Embedded full non-water cooling sliding rail for heating stove |
| 03/05/2008 | CN201031250Y Side blowing jet current heating type aluminum coiled material annealing furnace |
| 03/05/2008 | CN201030483Y Wire drawing, annealing, taking-up intelligent integral unit |
| 03/05/2008 | CN101135054A Base roller transmission type continuous carbonizing heat treatment furnace |
| 03/05/2008 | CN101135028A High-strength stainless steel and thermal treatment process |
| 03/05/2008 | CN101135025A Production of cold rolling high-strength ultra-deep-drawing steel plate by bell-type furnace and method for manufacturing same |
| 03/05/2008 | CN101134997A Apparatus for pretreating composite material metal base material and pretreating method |
| 03/05/2008 | CN101134996A Double quenching technique for 9Cr2Mo leveler roll |
| 03/05/2008 | CN101134995A Alloy spring steel ultra-fine martensite heat treatment quenching strengthening process |
| 03/05/2008 | CN101134994A Spring steel quenching medium water-based hardening liquid heat treating process |
| 03/05/2008 | CN101134993A Semi-continuous horizontal pipe lengthen annealing vacuum furnace |
| 03/05/2008 | CN101134992A Fine details slide track type quenching device |
| 03/05/2008 | CN101134991A Linear type heat treatment furnace |
| 03/05/2008 | CN101134277A Manufacturing method of surface-quenching chromium-plating winded-welding roller |
| 03/05/2008 | CN101134276A Production technology of big-length oxygen-free copper stripe |
| 03/05/2008 | CN101134224A Large-scale roller press squeeze roll forging technique |
| 03/05/2008 | CN100372965C Steel for high temperature resistant anticorrosion heat insulating oil pipe and its manufacturing method |
| 03/05/2008 | CN100372964C Non-orientation electrical steel and its making process |
| 03/05/2008 | CN100372950C Process for controlling temperature of strip steel |
| 03/05/2008 | CN100372949C Heat treating device and heat treating method |
| 03/04/2008 | US7339145 Apparatus and a method for induction heating of pieces of electrically conducting and non-magnetic material |
| 03/04/2008 | US7338629 Integrated metal processing facility |
| 02/28/2008 | WO2008022675A1 Pressure chamber of a heat treatment furnace comprising a circulation ventilator and an outside drive |
| 02/28/2008 | WO2007113690A3 Method of producing high- strength metal tubular bar for vehicle stabilizer possessing improved cold formability |
| 02/28/2008 | WO2007108344A9 High-strength steel excellent in weldability and process for production thereof |
| 02/28/2008 | US20080047636 Method of Manufacturing Metal Gasket |
| 02/28/2008 | US20080047635 Heavy wall seamless steel pipe for line pipe and a manufacturing method thereof |
| 02/28/2008 | DE19750858B4 Verfahren zum Herstellen einer Stranggießkokille A method for producing a continuous casting mold |
| 02/27/2008 | EP1892309A1 Oil well pipe for expandable-tube use excellent in toughness after pipe expansion and process for producing the same |
| 02/27/2008 | CN201027209Y Sealing hardening bath for shaft furnace |
| 02/27/2008 | CN101132938A Member for reinforcing vehicle body |
| 02/27/2008 | CN101130830A One tenth hardness quenching and tempering and annealing technique for chilled steel strip |
| 02/27/2008 | CN100371488C Crankshaft |
| 02/27/2008 | CN100371487C Martensitic stainless steel for disc brakes |
| 02/27/2008 | CN100371469C Continuous heat treatment machine for fine long fastener and continuous heat treatment method |
| 02/27/2008 | CN100371468C Cooling unit of cementation furnace for lifter chain |
| 02/26/2008 | US7334943 Differential support structure, differential's component, method of manufacturing differential support structure, and method of manufacturing differential's component |
| 02/21/2008 | WO2008020580A1 Hot-rolled high-carbon steel sheets and process for production of the same |
| 02/21/2008 | WO2008019751A1 Coiling furnace |
| 02/21/2008 | US20080042328 Substrate Processing Apparatus and Substrate Rotating Device |
| 02/21/2008 | US20080042327 System for Extending the Life of Thin Walled Tubing and Austempered Weld Stress Relieved Thin Walled Tubing |
| 02/21/2008 | US20080041505 Continuous process for production of steel part with regions of different ductility |
| 02/21/2008 | US20080041503 Excellent Cold-Workability Exhibiting High-Strength Steel Wire or Steel Bar or High-Strength Shaped Article, and Process for Producing Them |
| 02/20/2008 | EP1889936A1 Ferrite stainless steel sheet for bellows stock pipe |
| 02/20/2008 | EP1889935A1 High-strength steel sheet plated with zinc by hot dipping with excellent formability and process for producing the same |
| 02/20/2008 | EP1889929A1 Steel members, method for heat treatment of the same, and process for production thereof |
| 02/20/2008 | EP1888801A1 Razor blades and compositions and processes for the production of razor blades |
| 02/20/2008 | CN201024195Y Long stroke charge machine material rod |
| 02/20/2008 | CN201024194Y Continuous sheet material annealing device |
| 02/20/2008 | CN201024193Y Explorator device for guaranteeing gap for large scale rotary bearing ring raceway middle frequency quenching |
| 02/20/2008 | CN201024192Y Thin wall slim steel pipe deformation-proof composite automatic quenching device |
| 02/20/2008 | CN201024191Y Gas integral heat treatment device for large pressurized vessels |