Patents for C21D 5 - Heat treatment of cast-iron (891)
11/2009
11/10/2009US7615123 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
10/2009
10/21/2009CN101560596A Quenching treatment process of medium chromium cast ball
10/14/2009CN101555542A Isothermal quench process with low chrome white cast iron grinding ball
10/07/2009CN100547088C Applying method of temperature section timing oil quenching in wear-resisting material heat treatment
09/2009
09/30/2009CN101545030A Technology for processing oil quenching of high chromium casting ball
09/23/2009CN101537427A Composite roll for centrifugally casting high-chromium cast iron and a preparation method thereof
09/09/2009EP1931810A4 High silicon niobium casting alloy and process for producing the same
08/2009
08/26/2009EP2092089A1 Austempered ductile iron, method for producin this and component comprising this iron
08/26/2009EP2092088A1 Method for manufacturing at least part of a device for an earthmoving or materials-handling machine using austempered ductile iron
08/26/2009EP1776487B1 High-strength, wear-resistant, corrosion-resistant cast iron material
08/06/2009US20090195115 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
07/2009
07/02/2009WO2009081420A1 Nodular iron casting
06/2009
06/10/2009CN101451181A Heat treating method of high-hardness and wear-resistant cast-iron
05/2009
05/28/2009DE202004021580U1 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
05/20/2009CN101435012A Heat treatment equipment and process for alloy casting
04/2009
04/29/2009CN101418414A QT600-3 ductile iron casting and method for producing the same
04/29/2009CN101418409A Wear resistant cast iron
04/22/2009CN101413084A Silicon-chromium-boron alloy wear resistant ball and manufacturing method thereof
04/15/2009CN101407015A Method for manufacturing vermicular cast iron trolley body
04/15/2009CN101407010A Method and system for restoring parent metal properties across welds
04/15/2009CN100478478C As-cast state high-carbon high-chromium cast iron and method for producing the same
04/01/2009CN101397601A Heat treating technology for ausferrite spheroidal graphite cast iron
03/2009
03/25/2009EP2038435A2 Method for manufacturing spheroidal cast iron mechanical components
03/25/2009CN101392349A Super high chromium wear and corrosion resistant cast iron and preparation technology thereof
03/25/2009CN101392314A Heat treating process of low alloy steel trolley sawtooth casting
03/18/2009EP2036655A1 Method for manufacturing cast iron member, cast iron member, and engine for vehicle
03/11/2009CN101381837A Traction motor casing new material for high speed motor train set and fabrication technique thereof
03/03/2009US7497915 High strength, noncracking
02/2009
02/25/2009CN101372726A Heat treatment method for thick big ductile cast iron mould
01/2009
01/28/2009CN101356039A Method for manufacturing cast iron member, cast iron member, and engine for vehicle
01/14/2009CN101343716A Low alloy cast steel
12/2008
12/24/2008WO2008125964A3 Method for producing a crankshaft, in particular for diesel engines
12/03/2008EP1997917A1 Method of metal surface hardening treatment inducing transformation
12/03/2008CN101314809A Cast iron series mould material thermal treatment method capable of acquiring controllable and uniform rigidity
12/02/2008US7458881 Surface treated product, surface treatment method, and surface treatment apparatus
11/2008
11/05/2008CN101300368A High silicon niobium casting alloy and method of manufacturing the same
10/2008
10/29/2008CN101297048A Process for producing sliding rings and/or mating rings of a sliding-ring seal by means of laser hardening
10/29/2008CN101294256A High-wearing GKMCr20 cast iron combination for manufacturing roller sleeve and disk liner, thermal treatment method thereof
10/29/2008CN100429411C Crankshaft comprising a combined gear wheel and method for the production and use of said crankshaft
10/23/2008US20080260568 High Silicon Niobium Casting Alloy and Process for Producing the Same
10/23/2008CA2683328A1 Method for producing a crankshaft, in particular for diesel engines
10/22/2008EP1983064A2 Method for producing a crankshaft, in particular for diesel engines
09/2008
09/18/2008WO2008112720A1 Ferritic high-silicon cast irons
08/2008
08/28/2008US20080202652 Ferrous seal sliding parts and producing method thereof
08/14/2008US20080191074 Press Roller Annular Casing and Method For Production Thereof
08/07/2008WO2008094613A1 Method of improving mechanical properties of gray iron
08/06/2008EP1951917A1 Process for producing sliding rings and/or mating rings of a sliding-ring seal by means of laser hardening
07/2008
07/31/2008US20080178971 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
07/16/2008CN101220404A Method for processing nodular cast iron troostite
07/16/2008CN101220403A Isothermal treatment method for nodular cast iron bainite
07/09/2008EP1699941B1 Crankshaft comprising a combined gear wheel and method for the production and use of said crankshaft
07/02/2008CN100398672C Austempered cast iron article and a method of making the same
06/2008
06/26/2008WO2008076067A1 Method for manufacturing at least part of a device for an earthmoving or materials-handling machine using austempered ductile iron
06/26/2008WO2008076051A1 Austempered ductile iron, method for producin this and component comprising this iron
06/19/2008US20080145264 Mo-V-Ni high temperature steels, articles made therefrom and method of making
06/18/2008EP1931810A1 High silicon niobium casting alloy and process for producing the same
06/11/2008CN101195890A High chromium abrasion-proof cast iron abrasive disc and manufacturing method thereof
05/2008
05/14/2008CN101177759A Centrifugal composite modified indefinite chilled cast iron roller and preparation method thereof
05/07/2008CN101173340A As-cast state high-carbon high-chromium cast iron and method for producing the same
04/2008
04/30/2008CN101168792A Applying method of temperature section timing oil quenching in wear-resisting material heat treatment
04/23/2008CN101165200A High-silicon ferritic heat-resistant cast iron having high-temperature strength and high oxidation resistance
04/17/2008WO2008003395A8 Method for manufacturing spheroidal cast iron mechanical components
04/16/2008CN101162028A Cob-webbing quenching axle sleeve
03/2008
03/13/2008US20080060727 Ferrous seal sliding parts and producing method thereof
02/2008
02/28/2008WO2008003395A3 Method for manufacturing spheroidal cast iron mechanical components
02/20/2008CN100369681C Compound high speed steel roll and its making process
02/13/2008CN101124344A High pressure heat treatment system
01/2008
01/10/2008WO2008004708A1 Method for manufacturing cast iron member, cast iron member, and engine for vehicle
01/10/2008WO2008003395A2 Method for manufacturing spheroidal cast iron mechanical components
01/10/2008US20080006349 Cast iron alloy containing boron
12/2007
12/20/2007US20070289714 Ferrous seal sliding parts and producing method thereof
11/2007
11/29/2007WO2007134658A1 Cast iron material for producing piston rings and cylinder linings
11/15/2007US20070261770 Method and Apparatus for Micro-Treating Iron-Based Alloy, and the Material Resulting Therefrom
11/07/2007CN100346907C Method for casting production of abrasive sheet
10/2007
10/31/2007CN100345982C Prehardening treatment method of NAK80 mould steel
09/2007
09/13/2007WO2007102280A1 Method of metal surface hardening treatment inducing transformation
08/2007
08/08/2007EP1815030A2 High pressure heat treatment system
06/2007
06/28/2007US20070143997 Crankshaft comprising a combined gear wheel and method for the production and use of said crankshaft
06/13/2007EP1794336A1 Cast iron material for piston rings
05/2007
05/24/2007WO2007056967A1 Process for producing sliding rings and/or mating rings of a sliding-ring seal by means of laser hardening
05/03/2007US20070095443 Wear resistant cast iron
04/2007
04/25/2007EP1776487A1 High-strength, wear-resistant, corrosion-resistant cast iron material
04/12/2007WO2007040464A1 High silicon niobium casting alloy and process for producing the same
03/2007
03/21/2007CN1306049C Ferronickel smelting process of nickel oxide ore free of crystal water in blast furnace
03/07/2007CN1303238C Process for preparing cast iron
02/2007
02/14/2007CN1300352C Nickel-iron smelting process from nickel oxide ore containing crystal water through blast furnace
02/08/2007WO2007014516A1 A modified steel and its manufacture process
11/2006
11/29/2006CN1287118C Method for producing screw compressor and its rotor
11/23/2006WO2006123497A1 Sliding member
10/2006
10/18/2006CN1849402A Crankshaft comprising a combined gear wheel and method for the production and use of said crankshaft
10/18/2006CN1846887A Compound high speed steel roll and its making process
09/2006
09/20/2006CN1276113C High boron foundry iron base anti-wear alloy and its heat treatment method
09/13/2006EP1700923A1 Method and device for hardening the inner surface of holes, in mechanical pieces of cast iron of predominantly ferritic matrix
09/13/2006EP1699941A1 Crankshaft comprising a combined gear wheel and method for the production and use of said crankshaft
09/06/2006CN1827795A Ferrous seal sliding parts and producing method thereof
08/2006
08/24/2006WO2006050209A8 High pressure gas jet impingement heat treatment system
08/22/2006US7094476 Surface-treated product, surface-treatment method, and surface-treatment apparatus
08/10/2006US20060174982 Heat treated valve guide and method of making
08/09/2006EP1688506A1 Heat treated valve guide and method of making
07/2006
07/26/2006CN1266289C Production method of monoblock ultra intensified ductile cast iron crank shaft
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