| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 07/09/2008 | CN100400909C Rolling bearing for belt type non-stage transmission |
| 07/09/2008 | CN100400902C Functional pointed screw with local hardening and its making method |
| 07/08/2008 | US7396420 Hot-dip galvanized hot-rolled and cold-rolled steel sheets excellent in strain age hardening property |
| 07/08/2008 | CA2343340C Process for producing a piece with very high-level mechanical characteristics, formed by drawing, from a strip of laminated steel plate, hot rolled and coated |
| 07/05/2008 | CA2618361A1 Dual hardness connector |
| 07/03/2008 | WO2008078921A1 Method of forming {100} texture on surface of iron or iron-base alloy sheet, method of manufacturing non-oriented electrical steel sheet by using the same and non-oriented electrical steel sheet manufactured by using the same |
| 07/03/2008 | WO2008078434A1 Method for heat treatment |
| 07/03/2008 | WO2008078432A1 Heat treatment apparatus |
| 07/03/2008 | WO2008050563A3 Frictionally press-bonded member |
| 07/03/2008 | WO2008048307A3 Flash tempering process and apparatus |
| 07/03/2008 | US20080156402 welding together two metal pieces, comprising buttering a surface of a first metal piece with a first nickel-based filler metal at a thickness sufficient to isolate a heat-affected zone in the first metal piece from subsequent welding; heat-treating at least the heat-affected zone in the first metal |
| 07/03/2008 | DE19959608B4 Vorrichtung zur Laserbehandlung von zylindrischen Innenflächen, vorzugsweise von Zylinderlaufflächen für Verbrennungsmotoren Device for laser treatment of the cylindrical inner surfaces, preferably cylinder surfaces for internal combustion engines |
| 07/03/2008 | DE112006001926T5 Runden und Geraderichten von zylindrischen Teilen mittels Laser Rounds and straightening of cylindrical parts by laser |
| 07/02/2008 | EP1939308A1 Method for manufacturing a component through hot press hardening and highly rigid component with improved breaking strain |
| 07/02/2008 | EP1937861A1 High strength hot rolled steel sheet containing high mn content with excellent workability and method for manufacturing the same |
| 07/02/2008 | CN201080488Y Cold rolling steel belt continuous annealing coal-fired tunnel kiln |
| 07/02/2008 | CN101213313A Heat treatment oil composition |
| 07/02/2008 | CN101210329A Anti-rust quenching technique for screw steel |
| 07/02/2008 | CN101210304A Martensite precipitation hardening stainless steel for compressor impeller and preparation method thereof |
| 07/02/2008 | CN101210302A Middle and low carbon bainite high-strength high-ductility steel and manufacturing method thereof |
| 07/02/2008 | CN101210301A High strength low-carbon alloy structural steel used for centrifugal compressor impeller and preparation method thereof |
| 07/02/2008 | CN101210275A High precision automatic adjusting device and method for coil position |
| 07/02/2008 | CN100398860C Roller bearing with steel plate race |
| 07/02/2008 | CN100398856C Rolling bearing filled with balls and ball cam follower for engine |
| 07/02/2008 | CN100398685C Structure steel material suitable for fusion reactor |
| 07/02/2008 | CN100398682C Method for preparing micro-grain manganese bronze alloy |
| 07/02/2008 | CN100398674C Method of implementing on line softening annealing of medium, high carbon steel wire using high energy electric pulse |
| 07/02/2008 | CN100398672C Austempered cast iron article and a method of making the same |
| 07/02/2008 | CN100398671C Positioner for quenching workpiece immersion quenching bath |
| 07/01/2008 | US7393420 Steel tube for bearing element parts and method of manufacturing as well as machining the same |
| 06/26/2008 | WO2008043617A3 Method for heat treatment |
| 06/26/2008 | WO2008006346A3 Method for production of a sheet metal semi-finished product suitable for press hardening |
| 06/26/2008 | US20080149229 a steel containing at least carbon of 0.4 to 1.5 wt % is quenched at a surface layer of the steel through a deeper portion under the surface layer to form two or more kinds of quench hardened layers, in which one two quench hardened layers has a structure in which cementite are dispersed in 2% or more |
| 06/26/2008 | DE102006059885A1 Component for motor vehicle, has processed surface with varying structures in certain areas, where varying structures are arranged into three dimensional structure by laser |
| 06/25/2008 | EP1936000A1 Method of continuous annealing/hot-dipping of steel sheet containing silicon and apparatus for continuous annealing/hot-dipping |
| 06/25/2008 | EP1935995A1 Ballistic protection plate of titanium with layered properties |
| 06/25/2008 | CN201077857Y Band steel continuously quench tempering apparatus |
| 06/25/2008 | CN201077855Y Quenching cramping apparatus of hollow antiswary bar |
| 06/25/2008 | CN201077854Y Heat treating discharge cooling down material casing |
| 06/25/2008 | CN201077853Y High alloy cell-type solid solution heat treatment stove hardening machine |
| 06/25/2008 | CN201077852Y Steel tube automatic quenching machine tool |
| 06/25/2008 | CN201077851Y Telescopic type plane quenching induction apparatus |
| 06/25/2008 | CN101205599A Surface alloy coating hot-spraying technique for JHFZ alloy smooth sucker rod |
| 06/25/2008 | CN101205594A X80 steel made pipe fittings and manufacture technique thereof |
| 06/25/2008 | CN101205590A Annealing method for high-speed steel cold-drawing wire products |
| 06/25/2008 | CN101205569A Spline end protecting equipment for semi-minor axis quenching |
| 06/25/2008 | CN100396810C Weldable steel building component and method for making same |
| 06/25/2008 | CN100396802C Repairing method for mechanical machine-lathed compression spring |
| 06/25/2008 | CN100396800C Quenching agent and method for stub axle |
| 06/25/2008 | CN100396406C A method of cooling a hot isostatic pressing device and a hot isostatic pressing device |
| 06/19/2008 | US20080142121 includes 4 at. % or less of a low temperature annealing-enabling element and 10 at. % or less of nickel (Ni); relatively low glass transition temperature, crystallization temperature, and melting temperature such that the annealing temperature may be low, and a magnetic sheet having excellent flexibility |
| 06/19/2008 | DE10342750B4 Verfahren zum Glätten und Polieren oder zum Strukturieren von Oberflächen mit Laserstrahlung Method for smoothing and polishing or texturing surfaces using laser radiation |
| 06/19/2008 | DE102006059050A1 Verfahren zur Wärmebehandlung von Wälzlagerbauteilen aus durchgehärtetem, bainitischem Wälzlagerstahl A method of heat treatment of bearing components from through bainitic steel bearings |
| 06/19/2008 | DE102006057940A1 Processing of sliding surface of iron workpiece to hone cylinder barrels of internal combustion engine by short pulse-laser irradiation for plasma formation, comprises irradiating the sliding surface with the radiation of solid body laser |
| 06/18/2008 | EP1932933A1 Dead-soft high-carbon hot-rolled steel sheet and process for producing the same |
| 06/18/2008 | EP1931810A1 High silicon niobium casting alloy and process for producing the same |
| 06/18/2008 | CN201074240Y Roller dual-frequency quenching apparatus |
| 06/18/2008 | CN201074239Y Quenching cooling system |
| 06/18/2008 | CN201074238Y Machine tool guide rail laser-quenching apparatus |
| 06/18/2008 | CN101203620A Method for the batch heat-treatment of annealing product |
| 06/18/2008 | CN101200789A Low-alloy bainite ductile iron abrading-ball |
| 06/18/2008 | CN101200774A Low-alloy bainite ductile iron oil quenching isothermal tempering heat treatment process |
| 06/18/2008 | CN101200773A Marble disk laser surface strengthening method |
| 06/18/2008 | CN101199979A Forging method of large scale conical shell |
| 06/18/2008 | CN100395470C Pin structure of planetary rotary member of planetary reduction mechanism, and method for manufacturing pin |
| 06/18/2008 | CN100395365C Fe-cr-si based non-oriented electromagnetic steel sheet and process for producing the same |
| 06/18/2008 | CN100395353C Inducing quenching and tempering process of automobile knuckle |
| 06/18/2008 | CN100395068C High pressure vacuum electronic beam welding method for stator ring of air compressor of gas steam turine |
| 06/17/2008 | US7388177 Mobile induction brazing and quenching machine |
| 06/17/2008 | US7387763 Preparation of sheet by injection molding of powder, consolidation, and heat treating |
| 06/17/2008 | US7387762 Apparatus for sintering silver clay |
| 06/17/2008 | US7387694 Method of making a hardened steel part, especially a roll load-bearing steel part |
| 06/12/2008 | WO2008068968A1 Method for production of soft nitriding steel product |
| 06/12/2008 | WO2008068352A2 A strip of steel having a variable thickness in length direction |
| 06/12/2008 | DE102006048434A1 Procedure for the production of a protective gas- or treatment atmosphere in a heat treatment furnace, comprises vaporizing ethanol by electrically heated evaporator, introducing ethanol and carbon dioxide into the furnace |
| 06/12/2008 | DE10026372B4 Verfahren zum Laserbearbeiten einer Innenfläche einer zylinderförmigen Bohrung A method for laser machining an inner surface of a cylindrical bore |
| 06/11/2008 | EP1929053A1 Method for making a steel part of multiphase microstructure |
| 06/11/2008 | EP1225993B1 Heat treatment and sand removal for castings |
| 06/11/2008 | CN201071383Y Sealing curtain |
| 06/11/2008 | CN201071382Y Sliding bar type iron shot position testing apparatus |
| 06/11/2008 | CN101196145A Heavy oil diesel engine cylinder cover processing method |
| 06/11/2008 | CN101195913A Technique for forming chromium carbon nitrogen surface alloying layer by plasma composite process low-temperature |
| 06/11/2008 | CN101195895A Martensitic stainless steel with excellent tarnish resistance |
| 06/11/2008 | CN101195893A Isothermal hardening bainite thin wall cylinder cover |
| 06/11/2008 | CN101195853A Heating method for preventing high carbon belt steel bloom decarburization |
| 06/11/2008 | CN101195199A Special-shaped cross section copper strip process technique and special-shaped cross section copper strip produced by using the technique |
| 06/11/2008 | CN100394067C Pin for chain and method for manufacture thereof |
| 06/11/2008 | CN100393893C Heat treatment method and equipment through rotating magnetic field generated from magnetic parts of an apparatus |
| 06/10/2008 | US7384489 A first protective gas atmosphere containing nitrogen and hydrogen and/or helium is established in all but one cooling zone that has a second protective atmosphere containing nitrogen and more hydrogen that the other zones; gas flow control |
| 06/10/2008 | US7384488 Method for producing gears and/or shaft components with superior bending fatigue strength and pitting fatigue life from conventional alloy steels |
| 06/05/2008 | US20080128057 Valve springs; rotatingly driving and guiding through an alternating electro-magnetic field; subsequent hardening by quenching and tempering |
| 06/05/2008 | US20080128056 Internally dynamic furnace; pieces are displaced between the inlet and the outlet of the furnace in a predetermined time and on multiple height levels by way of a conveyor housed within the furnace itself; two portions thermally insulated; independent heaters; exploit ascending convective hot air |
| 06/05/2008 | US20080128055 Annealing-induced extensive solid-state amorphization in metallic films |
| 06/05/2008 | US20080128053 Method of manufacturing a welded metal panel having a high quality surface finish |
| 06/05/2008 | DE102005017906B4 Wärmebehandlung metallischer Werkstücke Heat treatment of metal workpieces |
| 06/04/2008 | EP1927668A2 Restoration method for deteriorated part and restoration apparatus for deteriorated part |
| 06/04/2008 | EP1926837A1 Process for manufacturing cold-formed precision steel pipes |
| 06/04/2008 | EP1446512B1 Martensitic stainless steel and method for manufacturing same |
| 06/04/2008 | CN201068465Y Coal electricity double energy source stainless steel band annealing stove for keeping brightness |
| 06/04/2008 | CN201068464Y Cover-type annealing furnace inner cover for coiled steel strip heat treatment |