Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082)
08/2002
08/22/2002US20020112787 High-strength race and method of producing the same
08/22/2002DE10118244C1 Modulare Vorrichtung für die Abschreckhärtung von Werkstücken Modular device for the quenching of workpieces
08/22/2002DE10103290A1 Stahl und Verfahren zur Herstellung eines Zwischenproduktes Steel and process for the preparation of an intermediate
08/22/2002DE10102932C1 Verfahren zur Herstellung eines kalt gewalzten Bandes oder Bleches aus Stahl und nach dem Verfahren herstellbares Band oder Blech A process for producing a cold-rolled strip or sheet of steel and producible by the method strip or sheet
08/21/2002EP1233207A1 Pushing block for CVT belt and manufacturing method therefor
08/21/2002EP1232673A1 Uv oven for curing magnet wire coatings
08/21/2002CN2507219Y Preheating device for end of large diameter high-strength steel pipe
08/21/2002CN1089373C Process for the inhibition control in the prouction of grain-oriented electrical sheets
08/20/2002US6436553 Continuous steel strip for twin presses and method for producing the same
08/20/2002US6436474 Method of chemically coating fasteners having improved penetration and withdrawal resistance
08/20/2002US6435867 Furnace roller and cast tire therefor
08/20/2002US6434949 Method and treatment device for the cooling of highly heated metal components
08/15/2002WO2002063058A1 Thin steel sheet and method for production thereof
08/15/2002WO2002063055A1 Heat-treated steel wire for high strength spring
08/15/2002WO2002063051A2 Integrated metal processing facility
08/15/2002WO2002063050A1 Method for producing a chain
08/15/2002US20020108683 Tempering the only the shank-body of die blocks by induction or infrared heating to a controlled depth; directing the heat only to body-shank and ending only after its been drawn; noncracking; durability
08/15/2002US20020108681 Heat treatment comprising the steps of normalizing the heat resistant steel, and oil-cooling the normalized heat-resisting steel to a temperature of <300 degrees C.; high heat resistance and mechanical strength; steam turbine rotors
08/15/2002US20020108277 Bucket tooth and method of manufacturing the same
08/15/2002US20020108276 Bucket tooth and method of manufacturing the same
08/14/2002EP1230411A1 Method for fabricating vehicle components and new use of a precipitation hardenable martensitic stainless steel
08/14/2002EP1032715B1 Method of manufacturing ejector pin sleeves
08/14/2002CN1364205A Method for producing improved cold rolled strip that is capable of being deep drawn or ironed, and cold rolled strip, preferably used for producing cylindrical containers and, in particular, battey
08/14/2002CN1364104A Heat treatment and sand removal for castings
08/14/2002CN1089117C Hot treatment technology for spring washer
08/13/2002US6432230 Transforming it from an austenitic structure into a different microstructure that is stable at room temperature comprises spray cooling.
08/08/2002WO2002061161A1 High strength steel sheet having excellent formability and method for production thereof
08/08/2002WO2002061154A1 Furnace for heat treatment of metal bars
08/08/2002WO2002061153A1 Method for pre-treating a ring support prior to the «alfin» process
08/08/2002WO2002061150A2 Transfer and stretching plant for metallic section bars of various kind
08/08/2002WO2002060611A1 Method for altering the profile of a roller strip
08/08/2002WO2002038814A3 Furnace roller and cast tire therefor
08/08/2002US20020104598 Heating process of steel strips in vertical furnaces
08/08/2002US20020104597 Method and apparatus for producing steel
08/08/2002US20020104596 Integrated metal processing facility
08/08/2002US20020104587 Steel coil spring of a suspension system comprising: a steel body portion having a surface; and a diffusion zone produced by nitriding said surface of said coil spring by regulation of a nitriding potential.
08/08/2002DE10149221C1 Verfahren zur Herstellung eines gehärteten Blechprofils A method of producing a hardened sheet metal profile
08/08/2002DE10149220C1 Verfahren zur Herstellung eines gehärteten Blechprofils A method of producing a hardened sheet metal profile
08/08/2002DE10106273A1 Verfahren zum Beeinflussen des Profils von Walzband Method for influencing the profile of rolled strip
08/08/2002DE10103896A1 Verfahren zur Vorbehandlung eines Ringträgers vor dem Alfinieren A method for pretreating a ring carrier before Alfin
08/07/2002EP1229143A2 Method for surface hardening a steel coil spring
08/07/2002EP1229138A1 Improvements of steel strip heating methods in vertical furnaces
08/07/2002EP1229137A1 Installation and process for the transport of metallic workpieces and installation for the heat treatment of metallic workpieces
08/07/2002EP1228828A2 Accelerated cooling of sintered metal parts
08/07/2002EP1228256A1 Method for improving the mechanical properties, especially the hardness, of journal crosses for use in articulated shafts
08/07/2002EP1228253A1 Steel composition, method for making same and parts produced from said compositions, particularly valves
08/07/2002EP1153146B1 Continuous furnace comprising a device for quenching workpieces and quenching method
08/07/2002EP1072169A4 Induction hardening apparatus for a crankshaft
08/07/2002CN1088760C Method for manufacturing high magnetic flux density grain oriented electrical steel sheet based on low temperature slab heating method
08/06/2002US6428742 Method for heat-treating metallic workpieces
08/06/2002US6427782 Noise suppression drilling system
08/06/2002US6427555 Method of making drill-chuck jaw with hard-metal inserts
08/01/2002WO2002059390A1 Bearing material
08/01/2002WO2002059389A2 Steel and method for producing an intermediate product
08/01/2002WO2002059384A2 High-strength isotropic steel, method for making steel plates and resulting plates
08/01/2002US20020102178 Shape, hardness
08/01/2002US20020100524 Method for producing welded tubing having a uniform microstructure
08/01/2002US20020100522 Annealing a carbon steel resulting in a microstructure of steel having dispersion of carbides in ferritic matrix; cold rolling annealed steel; cleaning; bridle braking; austenitizing the steel; quenching, isothermal transformation
07/2002
07/31/2002EP1227163A2 Grain oriented electrical steel sheet with low iron loss and production method for same
07/31/2002EP1225993A1 Heat treatment and sand removal for castings
07/31/2002EP1201773A9 High-strength spring and production method therefor
07/31/2002EP1084004B1 Method for rolling a metal strip
07/30/2002US6425756 Tower furnace for heat treatment of metal strips
07/30/2002US6425429 Tire having circumferential cables for anchoring the carcass and process of preparing such cables
07/25/2002WO2002057501A1 Heating furnace with regenerative burners and method of operating the heating furnace
07/25/2002WO2002057032A1 Method and device for manufacturing a hot rolled steel strip
07/25/2002US20020096232 Specified number of non-metallic inclusions; low pin hole defects or press cracks originating at inclusions; use in electric motor housings or oil filter housing
07/25/2002CA2639404A1 Heating furnace with regenerative burners and method of operating the heating furnace
07/24/2002EP1225235A2 Process for manufacturing a cold rolled steel strip or sheet and steel strip or sheet obtainable by the process
07/24/2002EP1224337A1 Apparatus for supporting material to be treated in continuously operated thermal treatment furnaces
07/24/2002CN1088155C Variable displacement compressor, swashplate, and method for hardening swashaplate
07/24/2002CN1088123C Nano-crystal alloy iron core for pricise current transformer and its making method
07/24/2002CN1088122C Non-ridging ferritic chromium alloyed steel
07/24/2002CN1088118C Thick cold rolled steel sheet excellent in deep drawability and method of mfg. same
07/24/2002CN1088113C Improvements made to repid-cooling ovens for metal strip
07/24/2002CA2354901A1 Process for manufacturing a fe-ni alloy strip
07/23/2002US6423426 High tensile hot-dip zinc-coated steel plate excellent in ductility and method for production thereof
07/23/2002US6423156 Process for the coating of electrical steel strips with an annealing separator
07/18/2002WO2002055752A1 Color picture tube-use aperture grill material, production method therefor, aperture grill and picture tube
07/18/2002DE10146301C1 Production of a strip made from an iron-nickel alloy, used for shadow masks in flat monitors and TV screens, comprises continuous or batch-type annealing a strip made from an iron alloy containing nickel, molybdenum and chromium
07/18/2002DE10105809C1 Production of a round link chain made from heat-treatable steel, used in drive and conveying elements, comprises forming a chain strand, heat treating while calibrating the chain and post-treating
07/17/2002EP1223228A2 Induction heating apparatus
07/17/2002CN1358878A Ultralow carbon steel and making method
07/17/2002CN1087783C Heat jtreatment for martensitic stainless steel sheet
07/17/2002CN1087782C High frequency quanching device non complete gear tooth profile
07/16/2002US6420054 Masking device for a color cathode-ray display tube with a flat screen, of the type comprising a support frame for a tensioned shadowmask, and tensioned shadowmask
07/16/2002US6419768 Cold reduction, annealing cycles
07/16/2002US6419762 Railroad rail of steel alloy with pearlitic microstructure; long-term serviceability, high ductility and abrasion resistance; vertically suspended position
07/16/2002US6419453 Steam turbine rotor shaft
07/11/2002WO2002053997A1 Support for parts to be heat treated in a furnace, and a heat treatment method for metal parts
07/11/2002WO2002053787A1 Multi-layer heat treating furnace, heat treating device, and heat treating method
07/11/2002US20020088511 Excellent in hardenability and toughness and formable with a high dimensional precision; tools, springs
07/10/2002CN2499405Y Magnetic suction type far infrared heater
07/10/2002CN1358236A High carbon steel sheet and method for production thereof
07/10/2002CN1357646A High strenght austenic stainless steel belt with excellent straightness and its making process
07/09/2002US6416707 Method and apparatus for producing fine wire
07/04/2002WO2002052914A1 A high strength steel plate having superior electric and magnetic shielding property, and method making the same
07/04/2002WO2002052055A1 Steel sheet for porcelain enameling and method for production thereof, and enameled product and method for production thereof
07/04/2002WO2001096133A3 Vehicle structural beam and method of manufacture
07/04/2002US20020084052 Methods and apparatus for heat treatment and sand removal for castings