| Patents for C21D 5 - Heat treatment of cast-iron (891) |
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| 07/20/2006 | US20060160472 Surface treated product, surface treatment method, and surface treatment apparatus |
| 07/20/2006 | US20060157160 High strength, noncracking |
| 07/06/2006 | WO2006050209A3 High pressure gas jet impingement heat treatment system |
| 07/06/2006 | US20060144478 Cast iron billet excelling in workability and process for producing the same |
| 07/05/2006 | CN1798856A 耐磨铸铁 Cast iron |
| 07/04/2006 | US7070666 Machinable austempered cast iron article having improved machinability, fatigue performance, and resistance to environmental cracking and a method of making the same |
| 05/18/2006 | DE102005051715A1 Hardening of cast iron parts containing residual austenite with cooling of regions of the parts after production, e.g. in a liquid coolant, useful in casting production |
| 05/11/2006 | WO2006050209A2 High pressure gas jet impingement heat treatment system |
| 05/11/2006 | CA2581305A1 High pressure gas jet impingement heat treatment system |
| 04/26/2006 | CN1253596C Production process of antiwear vanadium cast iron alloy for wall board extruder extruding screw |
| 04/19/2006 | CN1760380A A sort of austempering technique for austenitic spheroidal graphite cast iron |
| 03/22/2006 | CN1748913A Method for casting production of abrasive sheet |
| 03/21/2006 | US7015781 Production method of magnetic circuit member, magnetic circuit member, and electromagnetic apparatus |
| 03/15/2006 | CN1746325A High cr cast iron having excellent heat resistance and its heat treatment |
| 03/09/2006 | DE102004040359A1 Valve seat control element for controlling fluid stream used for controlling vapor-, water-, hot water-, or oil streams has cast iron housing including austenite phase region |
| 03/08/2006 | CN1743476A Nickel-iron smelting process from nickel oxide ore containing crystal water through blast furnace |
| 03/02/2006 | DE102004040055A1 Gusseisenwerkstoff für Kolbenringe Cast iron material for piston rings |
| 02/28/2006 | US7005017 Heat treatment of billets such that solid fraction have globular structure, then thixoforging and cooling to form nondeforming tools having tensile strength |
| 02/23/2006 | WO2006018054A1 High-strength, wear-resistant, corrosion-resistant cast iron material |
| 02/23/2006 | WO2006018053A1 Cast iron material for piston rings |
| 02/23/2006 | DE102004040056A1 Hoch- und verschleißfester, korrosionsbeständiger Gusseisenwerkstoff High and wear resistant, corrosion-resistant cast iron material |
| 02/15/2006 | CN1733950A Ferronickel smelting process of nickel oxide ore free of crystal water in blast furnace |
| 02/07/2006 | US6994758 Steel for mechanical construction, method of hot-shaping of a part from this steel, and part thus obtained |
| 01/25/2006 | CN2753740Y Sealing box type heat treatment multi-purpose furnace automatic production line apparatus |
| 01/11/2006 | CN1718771A Prehardening treatment method of NAK80 mould steel |
| 01/11/2006 | CN1718768A Bainite auctile iron isothermal quenching technology |
| 01/04/2006 | EP0864662B1 Casting material for thixocasting, method for preparing partially solidified casting material for thixocasting, thixo-casting method, iron-base cast, and method for heat-treating iron-base cast |
| 11/16/2005 | EP1595964A1 Cast iron billet excelling in workability and process for producing the same |
| 10/26/2005 | CN1688723A Austempered cast iron article and a method of making the same |
| 09/14/2005 | CN1667133A Ferrous seal sliding parts and producing method thereof |
| 09/08/2005 | US20050194071 Heat crack resistance, seizing resistance and abrasion resistance; for floating seal members such as rollers, idlers and reduction gears for construction machines |
| 09/06/2005 | US6940056 Induction heat treatment method and coil and article treated thereby |
| 09/01/2005 | US20050189045 Heat crack resistance, seizing resistance and abrasion resistance; for floating seal members such as rollers, idlers and reduction gears for construction machines |
| 09/01/2005 | US20050189043 Spheroidal graphite cast iron mixture in the liquid state having C,Si, Mn, Ni, Cu, Mo, Mg, Fe |
| 08/24/2005 | EP1566454A1 Process for producing nodular cast iron products and products obtained |
| 07/27/2005 | CN1212417C Manufacturing method for nodular cast iron |
| 06/08/2005 | CN1624180A High boron foundry iron base anti-wear alloy and its heat treatment method |
| 06/01/2005 | EP1534867A2 Austempered cast iron article and a method of making the same |
| 05/25/2005 | DE102004048108A1 Methode zur Wärmebehandlung mit Hilfe einer Induktionsspule und dadurch bearbeitete Teile Method of heat treatment using an induction coil, thereby machined parts |
| 04/26/2005 | US6884049 Screw compressor and method of manufacturing rotor for the same |
| 04/21/2005 | WO2005035801A1 Crankshaft comprising a combined gear wheel and method for the production and use of said crankshaft |
| 04/14/2005 | US20050077289 Induction heat treatment method and coil and article treated thereby |
| 04/05/2005 | CA2218788C A process for austempering ductile iron |
| 03/30/2005 | CN1600875A Technique for oil quenching casting sphere made from high chrome alloy |
| 03/30/2005 | CN1600874A Quenching technique of water fog plus wind for wearable casting ball made from alloy |
| 03/24/2005 | US20050063852 Screw compressor and method of manufacturing rotor for the same |
| 03/15/2005 | US6866726 Alloy of iron, manganese, nickel, carbon, silicon, phosphorus, sulfur, and magnesium; tensile strength, elongation |
| 03/09/2005 | CN1590568A Production method of monoblock ultra intensified ductile cast iron crank shaft |
| 03/01/2005 | US6861029 Carbon, silicon, manganese, copper, magnesium, sulfur, group iiib elements, boron and silicon at > 2.4% wt with an iron balance |
| 02/24/2005 | DE10309386B4 Verfahren zur Herstellung eines Gusseisenwerkstoffes mit gezieltem Restkarbidanteil A method for producing a cast iron material with targeted Restkarbidanteil |
| 01/19/2005 | CN1185068C Iron-graphite composite powder and sintered product made by said powder |
| 01/05/2005 | CN1183267C Non-austempered spheroidal graphite cast iron |
| 12/02/2004 | WO2004104253A1 Wear resistant cast iron |
| 10/28/2004 | US20040214030 an iron alloy containing carbon, chromium, manganese, molybdenum, nickel, silicon, vanadium, niobium and tantalum for a working part of an indefinite chill roll; high strength, low-alloy cast iron will not adhere or weld to rolling stock |
| 10/26/2004 | CA2313876C Iron-graphite composite powders and sintered articles produced therefrom |
| 10/19/2004 | US6805757 Casting material for indefinite rollers with sleeve part and method for producing the same |
| 09/23/2004 | DE10309386A1 Production of a cast iron workpiece with temper carbon-like (sic) graphite build up useful in internal combustion engine construction and ship building engines |
| 09/22/2004 | EP1460144A2 A process for thermally treating an Fe-based cast product and the product obtained by the process |
| 09/22/2004 | EP1460143A2 A process for preparing an Fe-based thixocast material |
| 09/22/2004 | EP1460138A1 A process for preparing a thixocast semi-molten casting material |
| 08/26/2004 | WO2004072314A1 Cast iron billet excelling in workability and process for producing the same |
| 08/26/2004 | CA2515509A1 Cast iron semi-finished product excellent in workability and method of production of the same |
| 07/20/2004 | US6764560 Method of forming cast alloys having high strength and plasticity |
| 06/17/2004 | WO2004022792A3 Austempered cast iron article and a method of making the same |
| 06/17/2004 | US20040112479 High strength, noncracking |
| 05/11/2004 | US6732698 Austempered gray iron cylinder liner and method of manufacture |
| 04/15/2004 | US20040071584 Spheroidal cast iron particularly for piston rings and method for obtaining a spheroidal cast iron |
| 04/07/2004 | CN1144891C Casting material for indefinite rollers with sleeve parts and method for producing the same |
| 03/18/2004 | WO2004022792A2 Austempered cast iron article and a method of making the same |
| 03/18/2004 | US20040050457 Automobile air intakes, manifolds, turbine housings, air ducts, compressor coverings or cylinders, having recesses on the surfaces, formed by impacting with oscillators |
| 03/17/2004 | EP1398391A2 Iron-graphite composite powders and sintered articles produced therefrom |
| 02/04/2004 | EP1190108B9 Casting material for indefinite rollers with a sleeve part and method for producing the same |
| 02/04/2004 | CN1472356A Manufacturing method for nodular cast iron |
| 01/28/2004 | EP1384794A1 Spheroidal cast iron particulary for piston rings and method for its production |
| 09/17/2003 | EP1344839A1 Alloyed nodular cast iron |
| 09/10/2003 | CN1120892C Normalizing liquid for cooling cast iron parts and its normalizing method |
| 08/13/2003 | EP1190108B1 Casting material for indefinite rollers with a sleeve part and method for producing the same |
| 08/13/2003 | CN1117644C Casting process and special equipment of mfg. wear-resisting sylinder jacket of tubular oil pump |
| 06/25/2003 | CN1425853A Method for producing screw compressor and its rotor |
| 06/12/2003 | US20030108446 Screw compressor and method of manufacturing rotor for the same |
| 06/04/2003 | CN1421540A Production process of extruder extruding screw with wall board of antiwear vanadium cast iron alloy |
| 03/05/2003 | CN1102669C Grinding ball of martensite/bainite compounded cast iron and its production technology |
| 03/04/2003 | US6527878 Heating a casting material into a semi-molten state in which a solid phase and a liquid phase coexist, filling the semi-molten casting material into a casting mold, and solidifying the semi-molten casting material under pressure |
| 01/28/2003 | US6511554 Stainless spheroidal carbide cast iron material |
| 01/02/2003 | EP1270747A2 Spheroidal graphite cast iron with addition of boron |
| 12/26/2002 | US20020195180 Carbon, silicon, manganese, copper, magnesium, sulfur, group iiib elements, boron and silicon at > 2.4% wt with an iron balance |
| 11/05/2002 | CA2236639C Thixocast casting material, process for preparing thixocast semi-molten casting material, thixocasting process, fe-based cast product, and process for thermally treating fe-based cast product |
| 10/02/2002 | DE19780253C2 Gußeisen und Kolbenring Cast iron and piston ring |
| 09/18/2002 | CN1369570A Process for preparing cast iron |
| 09/04/2002 | CN1367847A Non-austempered spheroidal graphite cast iron |
| 07/24/2002 | EP1225239A1 Non-austempered spheroidal graphite cast iron |
| 06/26/2002 | CN1086740C Technology and equipment for annealing malleable iron |
| 06/04/2002 | US6398881 High carbon steels having a melted ledeburite surface layer with a high cementite content on a martensite hardening zone produced by high energy surface melting; noncracking |
| 05/22/2002 | CN1349869A Casting process and special equipment of manufacturing wear resisting cylinder jacket of tubular oil pump |
| 05/16/2002 | DE10055662A1 Production of brake disks used for cars and motorbikes comprises rotating brake disk directly before fine processing, heating to selected heating temperature during rotation and slowly cooling to below room temperature |
| 05/15/2002 | EP1204777A1 Iron-graphite composite powders and sintered articles produced therefrom |
| 05/01/2002 | CN1347463A Casting material for indefinite rollers with sleeve part and method for producing same |
| 03/27/2002 | EP1190108A1 Casting material for indefinite rollers with a sleeve part and method for producing the same |
| 03/19/2002 | US6358298 Iron-graphite composite powders and sintered articles produced therefrom |
| 03/05/2002 | US6352141 Bainitically hardened brake disk |