| Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082) |
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| 01/29/2009 | WO2009014000A1 Process for production of high alloy steel tubes |
| 01/29/2009 | WO2009013410A2 Device for limiting the combustion fume exhaust at the entrance of a furnace for reheating iron and steel products |
| 01/29/2009 | WO2009012963A1 Process and device for producing strips of silicon steel or multiphase steel |
| 01/29/2009 | US20090025835 High Strength Steel Plate and High Strength Welded Pipe Excellent in Ductile Fracture Characteristic and Methods of Production of Same |
| 01/29/2009 | CA2693786A1 Electric induction heat treatment |
| 01/29/2009 | CA2687434A1 Process and device for producing strips of silicon steel or multiphase steel |
| 01/28/2009 | CN201186943Y Stainless steel band horizontal type continuous muffleless bright annealing equipment |
| 01/28/2009 | CN201186942Y Humidifying apparatus for continuous annealing furnace |
| 01/28/2009 | CN201186941Y Direct combustion type metal pipes bright heat treatment furnace |
| 01/28/2009 | CN201186940Y Full-automatic heat-treating facility for metal pipes |
| 01/28/2009 | CN201186939Y Metal pipe heat treatment heating device |
| 01/28/2009 | CN101356295A Steel sheet for continuous cast enameling with highly excellent unsusceptibility to fishscaling and process for producing the same |
| 01/28/2009 | CN101356290A Method for adjusting hardness of a sheet-shaped product |
| 01/28/2009 | CN101353949A Heat-treatment method of small diameter high steel level oil conduit |
| 01/28/2009 | CN101353754A Steel for internal magnetic shield and manufacturing method thereof |
| 01/28/2009 | CN101353722A Heat treatment method of metal objects |
| 01/28/2009 | CN101353721A Induction diathermic furnace |
| 01/28/2009 | CN101353716A Novel mining single ring tempering method |
| 01/28/2009 | CN101352946A Hot-dip aluminizing zincium steel plate/belt for deep drawing and method for producing the same |
| 01/28/2009 | CN101352796A Novel technique for producing mandrel bar |
| 01/28/2009 | CN101352785A Method for welding pressing sleeve of large-sized hydraulic press |
| 01/28/2009 | CN100455702C Method for producing oriented silicon steel with good bottom by low-temperature heating |
| 01/27/2009 | US7481898 Forging titanium-aluminum-vanadium alloy; solution heat treatment, quenching, aging; gas turbine engines |
| 01/27/2009 | US7481897 High toughness at low temperatures and yields plastically more than about 5% before fracturing at temperatures down to about -40 degrees C.; billet |
| 01/27/2009 | US7481896 double carboaustempering combined with a martensite-producing quench provides plain-carbon and low alloy steel power transmission shafts with a carbon-rich exterior having a martensite and bainite microstructure and a substantially bainite interior; fatigue resistance |
| 01/27/2009 | CA2493523C High strength steel sheet and method for manufacturing same |
| 01/22/2009 | WO2009009809A1 Method for the heat treatment of a metal band |
| 01/22/2009 | US20090020195 High Strength Spring Steel Wire and High Strength Spring and Methods of Production of the Same |
| 01/22/2009 | US20090020194 Method of Induction Hardening |
| 01/22/2009 | US20090020193 Rare earth sintered magnet and process for producing the same |
| 01/22/2009 | US20090020191 Post weld heat treatment for chemically stabilized austenitic stainless steel |
| 01/22/2009 | US20090020189 Steel wire material for spring and its producing method |
| 01/22/2009 | US20090020007 Single-piece forged-steel piston with inner oil cooling chamber and a method for manufacturing thereof |
| 01/21/2009 | EP2017358A2 Steel wire material for spring and its producing method |
| 01/21/2009 | EP2016202A2 Improvement made to the rapid heating sections of continuous heat-treatment lines |
| 01/21/2009 | EP1490524B2 Method and device for convective heat transfer between a heat transfer medium and the surface of a workpiece |
| 01/21/2009 | CN201183814Y Intermediate frequency induction heating furnace of bearing steel tube blank |
| 01/21/2009 | CN201183813Y Convection plate for cover-type annealing furnace |
| 01/21/2009 | CN201183812Y Middle and small type bearing sleeve ring heat-treatment quenching machine |
| 01/21/2009 | CN201183811Y Steel tube, petroleum oil well pipe and drill rod intermediate frequency induction heating heat-treating apparatus |
| 01/21/2009 | CN201183809Y Adjustable nozzle for inner water spraying of quenching device |
| 01/21/2009 | CN201183808Y Dismountable external spray device |
| 01/21/2009 | CN101351575A Electromagnetic steel sheet having insulating coating film and method for producing same |
| 01/21/2009 | CN101351574A Electromagnetic steel sheet having insulating coating film and method for producing same |
| 01/21/2009 | CN101351570A Ultrahigh-strength thin steel sheet |
| 01/21/2009 | CN101350542A Structure for cooling furnace platform electric machine coil of cap cover furnace |
| 01/21/2009 | CN101350399A Material of case for storage cell |
| 01/21/2009 | CN101348858A Non-hydraulic plate quenching device for steel belt continuous quenching and steel belt cooling method |
| 01/21/2009 | CN101348857A Air knife and water-cooling block combined saw belt quenching cooler |
| 01/21/2009 | CN101348856A Double metal saw belt single furnace multiple cycle temper tempering heat treatment method |
| 01/21/2009 | CN100453788C Member for internal combustion engine and production method thereof |
| 01/21/2009 | CN100453685C High Cr series stainless steel jointless oil well tube and its production method |
| 01/21/2009 | CN100453684C Cold formable spring steel wire excellent in cold cutting capability and fatigue properties and manufacturing process thereof |
| 01/21/2009 | CN100453682C Wear-resistant hammer head and its manufacturing process |
| 01/21/2009 | CN100453681C High boron wear-resisting casting steel and preparation process thereof |
| 01/21/2009 | CN100453675C High strength cold rolled steel sheet and method for production thereof |
| 01/21/2009 | CN100453661C Bearing's component, heat treatment method thereof, heat treatment apparatus, and rolling bearing |
| 01/15/2009 | WO2009009723A2 Functionally graded powder metal components |
| 01/15/2009 | WO2009008553A1 High-strength hot-dip galvanized steel sheet and process for producing the same |
| 01/15/2009 | WO2009008551A1 High-strength hot-dip galvanized steel sheet with low yield strength and with less material quality fluctuation and process for producing the same |
| 01/15/2009 | WO2009008548A1 Process for producing high-strength cold rolled steel sheet with low yield strength and with less material quality fluctuation |
| 01/15/2009 | WO2009007362A1 Method, device and system for the heat treatment of a running metal strip |
| 01/15/2009 | WO2008111828A3 Seamless steel pipe to be used as a steel catenary riser in the touchdown zone |
| 01/15/2009 | WO2008046542A3 Method and device for the crack-free welding, repair welding, or surface welding of materials prone to forming hot cracks |
| 01/15/2009 | US20090016925 High silicon stainless steel, spring made thereof, and process for manufacturing high silicon stainless steel |
| 01/15/2009 | US20090014099 Rail manufacturing method |
| 01/15/2009 | CA2693963A1 Galvanized steel sheet excellent in uniformity and method for producing the same |
| 01/15/2009 | CA2693763A1 High-strength galvanized steel sheet and method for producing the same |
| 01/14/2009 | EP2014781A1 High-strength hot-rolled steel plate having excellent stretch properties, stretch flanging properties and tension fatigue properties, and method for production thereof |
| 01/14/2009 | EP2014777A1 Method and device for thermal treatment of metal sheet |
| 01/14/2009 | CN201180149Y Novel structured unmuffled steel strip annealing oven |
| 01/14/2009 | CN201180148Y Shifting fork type counting-feeding apparatus |
| 01/14/2009 | CN101346487A Cr-containing steel excellent in thermal fatigue characteristics |
| 01/14/2009 | CN101343978A High-wind pressure impactor piston |
| 01/14/2009 | CN101343715A High-strength high-ductility X70 thick-wall seamless pipeline steel and manufacturing method |
| 01/14/2009 | CN101343714A 30CrMnSiB steel, weldless steel tube for cylinder and method of manufacturing the same |
| 01/14/2009 | CN101343685A Thermal treatment method for steel plate for high-strength construction with yield strength level of 420MPa |
| 01/14/2009 | CN101343684A Continuous on-line anneal technique for bi-metal wire bar and special apparatus thereof |
| 01/14/2009 | CN100451394C Pinion shaft |
| 01/14/2009 | CN100451153C High strength stainless steel pipe excellent in corrosion resistance for use in oil well and method for production thereof |
| 01/14/2009 | CN100451152C Bainite ductile iron grinding ball and its producing process |
| 01/14/2009 | CN100451136C Controlled cooling heat treating process and its device for bainite ductile iron |
| 01/14/2009 | CN100450707C Process of welding flow passage cover plate and frame of through-flow generator set |
| 01/14/2009 | CN100450697C Technique for ensuring axiality of mammoth converter support ring trunnion |
| 01/14/2009 | CN100450694C A vacuum electron beam welding method |
| 01/14/2009 | CN100450691C Narrow-gap all position pusle automatic argon arc welding technique for dissimillar nicklel-based alloys |
| 01/14/2009 | CN100450689C Repairing welding method for crack of rotor support power generator |
| 01/14/2009 | CN100450651C Method for producing cogging by air-valve steel rolling |
| 01/13/2009 | US7475478 Method for manufacturing automotive structural members |
| 01/13/2009 | CA2441130C Steel pipe for embedding-expanding, and method of embedding-expanding oil well steel pipe |
| 01/08/2009 | WO2009005534A1 Methods and systems for steel patenting |
| 01/08/2009 | WO2009004909A1 Thick hot-rolled steel sheet having excellent processability and excellent strength/toughness after thermal treatment, and method for production of the steel sheet |
| 01/08/2009 | WO2009004741A1 Martensitic stainless-steel seamless pipe for oil well pipe and process for producing the same |
| 01/08/2009 | WO2009003551A1 Melt-treated rim of a piston combustion bowl |
| 01/08/2009 | US20090008211 Clutch Member and Process for Manufacturing the Same |
| 01/08/2009 | US20090007998 Wire with excellent suitability for drawing and process for producing the same |
| 01/08/2009 | US20090007997 Methods and Systems for Preventing Iron Oxide Formulation and Decarburization During Steel Tempering |
| 01/08/2009 | CA2691730A1 High strength hot rolled thick steel sheet excellent in strength and toughness after heat treatment and method for manufacturing the same |
| 01/07/2009 | EP2012033A1 Method of producing bearing unit-use outer race |
| 01/07/2009 | EP2011891A1 Brake disc having high temper softening resistance |