| Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082) |
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| 05/23/2007 | CN1966738A Shaft materials quenching method and device therefor |
| 05/23/2007 | CN1966204A Producing technology for large size copper heterotype plate |
| 05/23/2007 | CN1317480C Sleeved petroleum pipe with special jointer for resisting squeeze and its making method |
| 05/23/2007 | CN1317416C Bulk steel for the production of injection moulds for plastic material or for the production of pieces for working metals |
| 05/23/2007 | CN1317415C Steel and steel pipe for high-temp. use |
| 05/22/2007 | US7220327 Kick-down drum material and method of manufacturing the same |
| 05/18/2007 | WO2007055400A1 Steel sheet for continuous cast enameling with highly excellent unsusceptibility to fishscaling and process for producing the same |
| 05/18/2007 | WO2007055155A1 Iron-based alloy having shape-memory property and superelasticity and method for manufacture thereof |
| 05/18/2007 | WO2007054398A1 Installation for the dry transformation of a material microstructure of semi-finished products |
| 05/18/2007 | WO2007054063A2 Method and device for the continuous creation of a bainite structure in a carbon steel, especially a strip steel |
| 05/17/2007 | US20070110544 Light metal thread-forming screw fastener and method for making same |
| 05/17/2007 | US20070107815 Successive curtains are specifically adjusted to obtain the temperature that allows pearlitic transformation and is kept constant during the isothermal stage as the cooling temperature through the cooling process in a liquid medium; isothermal stage immediately follows the cooling process |
| 05/16/2007 | EP1785496A1 Process for hardening the edge portion of a recess in a metallic article using induction heating, and locally hardened twist beam axle obtained by this process |
| 05/16/2007 | CN2900549Y Inner hole oil spray mould support nail |
| 05/16/2007 | CN2900548Y Medium frequency quenching machine tool for oil pumping rod |
| 05/16/2007 | CN2900547Y Rectangular plate two dimension high pressure shape-fixing quenching mould |
| 05/16/2007 | CN1963260A Gear ring blank for automobile synchronizer and method for processing same |
| 05/16/2007 | CN1962921A Annealing process and device for use in production of copper clad aluminum or copper clad aluminum magnesium filaments |
| 05/16/2007 | CN1962915A High-temperature-resistance FeNiCo constant-modulus alloy, its preparation method, and method for preparing components by using same |
| 05/16/2007 | CN1962895A Surface modification process for metal nano-crystalline particle with high fatigue life |
| 05/16/2007 | CN1962894A Push-and-draw type loading machine |
| 05/16/2007 | CN1962893A Liquid-injection liquid-immersion and air-cooling combined controlled quenching and cooling method for workpieces in suspension mode |
| 05/16/2007 | CN1962178A Production process of PS printing base for high grade printing |
| 05/16/2007 | CN1962177A Method for making hammer stem for forging equipment |
| 05/16/2007 | CN1962172A Integrally bladed rotor airfoil fabrication and repair techniques |
| 05/16/2007 | CN1962153A A vacuum electron beam welding method |
| 05/16/2007 | CN1962151A Process for welding 800MPa high-strength steel without preheating |
| 05/16/2007 | CN1962101A Method for preparing high-performance extension molybdenum strip |
| 05/16/2007 | CN1962099A Method for manufacturing 700MPa high-strength weathering steel based on thin slab continuous casting and rolling flow by use of Ti microalloying process |
| 05/16/2007 | CN1315601C Methods and apparatus for heat treatment and sand removal for castings |
| 05/15/2007 | US7217329 Carbon-titanium steel rail |
| 05/10/2007 | WO2007052775A1 High-strength steel excellent in delayed fracture resistance characteristics and metal bolts |
| 05/10/2007 | WO2007052072A1 Method of and apparatus for cooling a heated weld by controlling the flow rate of emitted solid carbon dioxide particles |
| 05/10/2007 | WO2007052071A1 Nozzle for emitting solid carbon dioxide particles with an axially displaceable valve member; apparatus for cooling a heated weld zone with such a nozzle; welding apparatus with such cooling apparatus |
| 05/10/2007 | US20070101789 Carbon, silicon, manganese, phosphorus, sulfur, chromium, aluminum, titanium, nitrogen, boron and oxygen; automobile parts; improving acceleration response owing to the enhancement of torsion stiffness, controlling indoor noise |
| 05/09/2007 | EP1451378B1 Fastening element made of a carbon-containing steel and method for the production thereof |
| 05/09/2007 | CN2898054Y Continuous annealing apparatus for expanded aluminum plate |
| 05/09/2007 | CN2898051Y Furnace plate of bell-jar annealing furnace |
| 05/09/2007 | CN1961091A Steel and steel wire for high strength spring |
| 05/09/2007 | CN1958216A Combined technology for milling and grinding tooth parts of spiral taper gear |
| 05/08/2007 | US7214278 High-strength four-phase steel alloys |
| 05/08/2007 | US7213973 Rolling bearing in aircraft |
| 05/03/2007 | WO2007049915A1 Corrosion resistance improved steel sheet for autmotive muffler and method of producing the steel sheet |
| 05/03/2007 | WO2007048664A1 Method and installation for the dry transformation of a material structure of semifinished products |
| 05/03/2007 | WO2007048489A1 Strand guiding roller |
| 05/03/2007 | WO2007015859A3 Process for laser rounding and flattening of cylindrical parts |
| 05/03/2007 | US20070095444 High strength steel sheet excellent in formability and method for producing the same |
| 05/02/2007 | EP1780428A1 Needle roller bearing |
| 05/02/2007 | EP1780293A2 Procedure for manufacturing of steel starting material by warm deforming |
| 05/02/2007 | EP1778886A1 Object comprising a steel part of a metal construction consisting of an area welded by a high power density beam and exhibiting an excellent toughness in a molten area, method for producing said object |
| 05/02/2007 | CN2895433Y Tendon running water quenching system apparatus |
| 05/02/2007 | CN2895432Y Furnace hearth of annealing section for zinc-plating production line |
| 05/02/2007 | CN1957100A Steel plate excellent in resistance to fatigue crack expansibility and manufacturing method thereof |
| 05/02/2007 | CN1957096A Method for producing a shaft pertaining to a starter |
| 05/02/2007 | CN1955324A Process for removing mixed crystal defect of large rotor forging |
| 05/02/2007 | CN1313634C Complex alloy cast-steel excavator bucket teeth and its producing process |
| 05/02/2007 | CN1313629C Preprocessing technology for processing integral key shaft |
| 04/26/2007 | US20070089813 Seamless steel tube which is intended to be used as a guide pipe and production method thereof |
| 04/26/2007 | US20070089809 Fe-Ni based permalloy and method of producing the same and cast slab |
| 04/25/2007 | EP1776483A1 Hot rolled strip cooling device with coolant header |
| 04/25/2007 | CN1954088A Excellent cold-workability exhibiting high-strength steel wire or steel bar, or high-strength shaped article and process for producing them |
| 04/25/2007 | CN1952202A Method for quenching high voltage electronic aluminum foil finished products |
| 04/25/2007 | CN1952184A Rotating unit for horizontal quenching machine tool |
| 04/25/2007 | CN1951620A Welding and deformation control method of large scale bulb tubular set and base |
| 04/25/2007 | CN1312311C Deformed wire for reinforcing marine optical fiber cable |
| 04/25/2007 | CN1312309C Steel wire for heat-resistant spring, heat-resistant spring and method for producing heat-resistant spring |
| 04/25/2007 | CN1311926C Method for rationally producing U-shaped heat exchange tubes |
| 04/24/2007 | US7207933 Carburized roller member made of high carbon chromium steel |
| 04/24/2007 | CA2277841C Multilayer composite tubular structure and method of making |
| 04/24/2007 | CA2183950C Hot strip production plant for ferritic rolling and method of producing ferritic rolled strip |
| 04/19/2007 | WO2007043318A1 Dead-soft high-carbon hot-rolled steel sheet and process for producing the same |
| 04/19/2007 | WO2007043317A1 Steel material |
| 04/19/2007 | WO2007043316A1 Steel material and process for producing the same |
| 04/19/2007 | WO2007043315A1 Steel material and process for producing the same |
| 04/19/2007 | WO2007043307A1 Process for manufacturing roller shell of lower running body of construction machine |
| 04/19/2007 | WO2007043273A1 Method of continuous annealing/hot-dipping of steel sheet containing silicon and apparatus for continuous annealing/hot-dipping |
| 04/19/2007 | WO2007043168A1 Cold-rolled steel sheet excellent in coating curability in baking and cold slow-aging property and process for producing the same |
| 04/19/2007 | US20070084529 High strength and high ductility steel sheet having ultrafine crystalline grain structure obtained by low strain processing and annealing of ordinary low carbon steel, and a method for producing thereof |
| 04/19/2007 | DE10207132B4 Verfahren zum bereichsweisen Verstärken eines Werkstückes mit einem Loch A method for amplifying a region-wise workpiece with a hole |
| 04/19/2007 | CA2624390A1 Cold-rolled steel sheet excellent in paint bake hardenability and ordinary-temperature non-aging property and method of producing the same |
| 04/18/2007 | EP1472383B1 Precipitation hardenable austenitic steel |
| 04/18/2007 | CN2890075Y Quenching gear shaft positioning device |
| 04/18/2007 | CN1950619A Ball element for two-part ball pivot and corresponding method of production |
| 04/18/2007 | CN1950532A Seamless steel pipe and method for production thereof |
| 04/18/2007 | CN1950531A Member for machine construction and production method therefor |
| 04/18/2007 | CN1950530A Component for machine structure, method for producing same, and material for high-frequency hardening |
| 04/18/2007 | CN1948541A Corrosion resistant mould steel |
| 04/18/2007 | CN1948538A Petroleum steel tube capable of anti hydrogen sulfide stress corrosion and its manufacturing method |
| 04/18/2007 | CN1948518A Heat treatment device of scissors products and its method |
| 04/18/2007 | CN1947927A Method for producing non-hardened and tempered steel-late used for hydraulic support |
| 04/18/2007 | CN1947924A Method for producing welding materials by using offcut of steel plate |
| 04/18/2007 | CN1947913A Narrow-gap all position pusle automatic argon arc welding technique for dissimillar nicklel-based alloys |
| 04/18/2007 | CN1947911A Automatic submerged-arc build-up welding process for drum surface round flange |
| 04/18/2007 | CN1311088C Pneumatic steet shot heat treating method and fluidized bed unit |
| 04/17/2007 | US7204894 Prior to the annealing step, the hot rolled steel coils are placed within the housing of the furnace, hot rolled steel coils are supported on a retaining element secured to a base portion located within the housing of the furnace |
| 04/12/2007 | WO2007039468A2 A process for raising the tempering resistance of a steel work piece |
| 04/12/2007 | WO2006020723B1 Radial expansion system |
| 04/12/2007 | US20070082223 Stainless steel wire, spring and method of manufacturing the spring |
| 04/12/2007 | US20070079910 Thin gauge steel sheet excellent in surface conditions, formability, and workability and method for producing the same |
| 04/11/2007 | EP1772558A1 Apparatus for selective heat treatment of railway wheels |