| Patents for C21D 5 - Heat treatment of cast-iron (891) |
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| 11/10/2009 | US7615123 manufactured by hot isostatic compaction of nitrogen atomized, prealloyed powder; improved impact toughness and bend fracture strength; addition of niobium results in greater precipitation of primary carbides; gas atomization of the liquid alloy results in finer carbide size distribution; microstructure |
| 10/21/2009 | CN101560596A Quenching treatment process of medium chromium cast ball |
| 10/14/2009 | CN101555542A Isothermal quench process with low chrome white cast iron grinding ball |
| 10/07/2009 | CN100547088C Applying method of temperature section timing oil quenching in wear-resisting material heat treatment |
| 09/30/2009 | CN101545030A Technology for processing oil quenching of high chromium casting ball |
| 09/23/2009 | CN101537427A Composite roll for centrifugally casting high-chromium cast iron and a preparation method thereof |
| 09/09/2009 | EP1931810A4 High silicon niobium casting alloy and process for producing the same |
| 08/26/2009 | EP2092089A1 Austempered ductile iron, method for producin this and component comprising this iron |
| 08/26/2009 | EP2092088A1 Method for manufacturing at least part of a device for an earthmoving or materials-handling machine using austempered ductile iron |
| 08/26/2009 | EP1776487B1 High-strength, wear-resistant, corrosion-resistant cast iron material |
| 08/06/2009 | US20090195115 comprising:an insulating binder, first conductive particles with a core and a shell held in the insulating binder, and second conductive particles without a shell held in the insulating binder; provides overvoltage circuit protection |
| 07/02/2009 | WO2009081420A1 Nodular iron casting |
| 06/10/2009 | CN101451181A Heat treating method of high-hardness and wear-resistant cast-iron |
| 05/28/2009 | DE202004021580U1 Vorrichtung zur Wärmebehandlung mit Hilfe einer Induktionsspule und dadurch bearbeitete Teile An apparatus for heat treatment by means of an induction coil and thereby machined parts |
| 05/20/2009 | CN101435012A Heat treatment equipment and process for alloy casting |
| 04/29/2009 | CN101418414A QT600-3 ductile iron casting and method for producing the same |
| 04/29/2009 | CN101418409A Wear resistant cast iron |
| 04/22/2009 | CN101413084A Silicon-chromium-boron alloy wear resistant ball and manufacturing method thereof |
| 04/15/2009 | CN101407015A Method for manufacturing vermicular cast iron trolley body |
| 04/15/2009 | CN101407010A Method and system for restoring parent metal properties across welds |
| 04/15/2009 | CN100478478C As-cast state high-carbon high-chromium cast iron and method for producing the same |
| 04/01/2009 | CN101397601A Heat treating technology for ausferrite spheroidal graphite cast iron |
| 03/25/2009 | EP2038435A2 Method for manufacturing spheroidal cast iron mechanical components |
| 03/25/2009 | CN101392349A Super high chromium wear and corrosion resistant cast iron and preparation technology thereof |
| 03/25/2009 | CN101392314A Heat treating process of low alloy steel trolley sawtooth casting |
| 03/18/2009 | EP2036655A1 Method for manufacturing cast iron member, cast iron member, and engine for vehicle |
| 03/11/2009 | CN101381837A Traction motor casing new material for high speed motor train set and fabrication technique thereof |
| 03/03/2009 | US7497915 High strength, noncracking |
| 02/25/2009 | CN101372726A Heat treatment method for thick big ductile cast iron mould |
| 01/28/2009 | CN101356039A Method for manufacturing cast iron member, cast iron member, and engine for vehicle |
| 01/14/2009 | CN101343716A Low alloy cast steel |
| 12/24/2008 | WO2008125964A3 Method for producing a crankshaft, in particular for diesel engines |
| 12/03/2008 | EP1997917A1 Method of metal surface hardening treatment inducing transformation |
| 12/03/2008 | CN101314809A Cast iron series mould material thermal treatment method capable of acquiring controllable and uniform rigidity |
| 12/02/2008 | US7458881 Surface treated product, surface treatment method, and surface treatment apparatus |
| 11/05/2008 | CN101300368A High silicon niobium casting alloy and method of manufacturing the same |
| 10/29/2008 | CN101297048A Process for producing sliding rings and/or mating rings of a sliding-ring seal by means of laser hardening |
| 10/29/2008 | CN101294256A High-wearing GKMCr20 cast iron combination for manufacturing roller sleeve and disk liner, thermal treatment method thereof |
| 10/29/2008 | CN100429411C Crankshaft comprising a combined gear wheel and method for the production and use of said crankshaft |
| 10/23/2008 | US20080260568 High Silicon Niobium Casting Alloy and Process for Producing the Same |
| 10/23/2008 | CA2683328A1 Method for producing a crankshaft, in particular for diesel engines |
| 10/22/2008 | EP1983064A2 Method for producing a crankshaft, in particular for diesel engines |
| 09/18/2008 | WO2008112720A1 Ferritic high-silicon cast irons |
| 08/28/2008 | US20080202652 Ferrous seal sliding parts and producing method thereof |
| 08/14/2008 | US20080191074 Press Roller Annular Casing and Method For Production Thereof |
| 08/07/2008 | WO2008094613A1 Method of improving mechanical properties of gray iron |
| 08/06/2008 | EP1951917A1 Process for producing sliding rings and/or mating rings of a sliding-ring seal by means of laser hardening |
| 07/31/2008 | US20080178971 Applying substantially uniform magnetic field to gray iron; heat treating the gray iron while the gray iron is within the magnetic field; strength and durability |
| 07/16/2008 | CN101220404A Method for processing nodular cast iron troostite |
| 07/16/2008 | CN101220403A Isothermal treatment method for nodular cast iron bainite |
| 07/09/2008 | EP1699941B1 Crankshaft comprising a combined gear wheel and method for the production and use of said crankshaft |
| 07/02/2008 | CN100398672C Austempered cast iron article and a method of making the same |
| 06/26/2008 | WO2008076067A1 Method for manufacturing at least part of a device for an earthmoving or materials-handling machine using austempered ductile iron |
| 06/26/2008 | WO2008076051A1 Austempered ductile iron, method for producin this and component comprising this iron |
| 06/19/2008 | US20080145264 Mo-V-Ni high temperature steels, articles made therefrom and method of making |
| 06/18/2008 | EP1931810A1 High silicon niobium casting alloy and process for producing the same |
| 06/11/2008 | CN101195890A High chromium abrasion-proof cast iron abrasive disc and manufacturing method thereof |
| 05/14/2008 | CN101177759A Centrifugal composite modified indefinite chilled cast iron roller and preparation method thereof |
| 05/07/2008 | CN101173340A As-cast state high-carbon high-chromium cast iron and method for producing the same |
| 04/30/2008 | CN101168792A Applying method of temperature section timing oil quenching in wear-resisting material heat treatment |
| 04/23/2008 | CN101165200A High-silicon ferritic heat-resistant cast iron having high-temperature strength and high oxidation resistance |
| 04/17/2008 | WO2008003395A8 Method for manufacturing spheroidal cast iron mechanical components |
| 04/16/2008 | CN101162028A Cob-webbing quenching axle sleeve |
| 03/13/2008 | US20080060727 Ferrous seal sliding parts and producing method thereof |
| 02/28/2008 | WO2008003395A3 Method for manufacturing spheroidal cast iron mechanical components |
| 02/20/2008 | CN100369681C Compound high speed steel roll and its making process |
| 02/13/2008 | CN101124344A High pressure heat treatment system |
| 01/10/2008 | WO2008004708A1 Method for manufacturing cast iron member, cast iron member, and engine for vehicle |
| 01/10/2008 | WO2008003395A2 Method for manufacturing spheroidal cast iron mechanical components |
| 01/10/2008 | US20080006349 Cast iron alloy containing boron |
| 12/20/2007 | US20070289714 Ferrous seal sliding parts and producing method thereof |
| 11/29/2007 | WO2007134658A1 Cast iron material for producing piston rings and cylinder linings |
| 11/15/2007 | US20070261770 Method and Apparatus for Micro-Treating Iron-Based Alloy, and the Material Resulting Therefrom |
| 11/07/2007 | CN100346907C Method for casting production of abrasive sheet |
| 10/31/2007 | CN100345982C Prehardening treatment method of NAK80 mould steel |
| 09/13/2007 | WO2007102280A1 Method of metal surface hardening treatment inducing transformation |
| 08/08/2007 | EP1815030A2 High pressure heat treatment system |
| 06/28/2007 | US20070143997 Crankshaft comprising a combined gear wheel and method for the production and use of said crankshaft |
| 06/13/2007 | EP1794336A1 Cast iron material for piston rings |
| 05/24/2007 | WO2007056967A1 Process for producing sliding rings and/or mating rings of a sliding-ring seal by means of laser hardening |
| 05/03/2007 | US20070095443 Wear resistant cast iron |
| 04/25/2007 | EP1776487A1 High-strength, wear-resistant, corrosion-resistant cast iron material |
| 04/12/2007 | WO2007040464A1 High silicon niobium casting alloy and process for producing the same |
| 03/21/2007 | CN1306049C Ferronickel smelting process of nickel oxide ore free of crystal water in blast furnace |
| 03/07/2007 | CN1303238C Process for preparing cast iron |
| 02/14/2007 | CN1300352C Nickel-iron smelting process from nickel oxide ore containing crystal water through blast furnace |
| 02/08/2007 | WO2007014516A1 A modified steel and its manufacture process |
| 11/29/2006 | CN1287118C Method for producing screw compressor and its rotor |
| 11/23/2006 | WO2006123497A1 Sliding member |
| 10/18/2006 | CN1849402A Crankshaft comprising a combined gear wheel and method for the production and use of said crankshaft |
| 10/18/2006 | CN1846887A Compound high speed steel roll and its making process |
| 09/20/2006 | CN1276113C High boron foundry iron base anti-wear alloy and its heat treatment method |
| 09/13/2006 | EP1700923A1 Method and device for hardening the inner surface of holes, in mechanical pieces of cast iron of predominantly ferritic matrix |
| 09/13/2006 | EP1699941A1 Crankshaft comprising a combined gear wheel and method for the production and use of said crankshaft |
| 09/06/2006 | CN1827795A Ferrous seal sliding parts and producing method thereof |
| 08/24/2006 | WO2006050209A8 High pressure gas jet impingement heat treatment system |
| 08/22/2006 | US7094476 Surface-treated product, surface-treatment method, and surface-treatment apparatus |
| 08/10/2006 | US20060174982 Heat treated valve guide and method of making |
| 08/09/2006 | EP1688506A1 Heat treated valve guide and method of making |
| 07/26/2006 | CN1266289C Production method of monoblock ultra intensified ductile cast iron crank shaft |