| Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082) |
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| 11/17/2004 | EP1477574A2 High-strength stainless steel sheet and method for manufacturing the same |
| 11/17/2004 | EP1476586A1 Steel, solid wheel, and tire for rail vehicles and method for producing parts of this type |
| 11/17/2004 | CN2656431Y Material basket for cage type annealing furnace |
| 11/17/2004 | CN2656430Y Rear wheel boss shaft quenching induction device |
| 11/17/2004 | CN1547620A Steel plate exhibiting excellent workability and method for producing the same |
| 11/17/2004 | CN1176229C Bearing steel ball surface reinforcing process |
| 11/16/2004 | US6818073 Method of producing steel strip |
| 11/11/2004 | WO2004097318A2 Method for improving performances of a heating furnace and furnace implementing said method |
| 11/11/2004 | WO2004097059A1 Seamless steel tube which is intended to be used as a guide pipe and production method thereof |
| 11/11/2004 | WO2004097058A1 Martensitic stainless steel for disc brake |
| 11/11/2004 | US20040221928 Aluminum-killed medium-carbon steel sheet for containers and process for its preparation |
| 11/11/2004 | DE202004012945U1 Mandrel hardening machine has a powered rotor, with processing stations, and a coolant flow of hardening oil at the retainers at each station |
| 11/10/2004 | EP1475451A1 METHOD FOR HEAT TREATING Ni BASE ALLOY PIPE |
| 11/10/2004 | EP1475446A1 Heat treatment furnace |
| 11/10/2004 | EP1198307A4 Metal gasket and method of manufacture |
| 11/10/2004 | EP1123420B1 Process for thermal treatment of steel strip |
| 11/10/2004 | CN1545564A Method and device for quenching steel in pressurized air |
| 11/09/2004 | US6815401 Oil composition for heat treatment of a gear and gear treated by using the oil composition |
| 11/09/2004 | US6814817 Steel strap composition |
| 11/09/2004 | US6814573 Vacuum heat-treatment apparatus |
| 11/09/2004 | US6813923 Method and apparatus for flexible manufacturing a discrete curved product from feed stock |
| 11/09/2004 | CA2306887C Simple ladle refining method |
| 11/04/2004 | WO2004094681A1 High strength hot-rolled steel plate |
| 11/04/2004 | US20040219051 Net shaping gear teeth for high performance automotive power transmission; heating above critical temperature and quenching faster than critical cooling rate; rolling between opposed dies having profiled surfaces for densification, plastic deformation and strengthening; cooling to harden |
| 11/04/2004 | US20040217527 Hood-type annealing furnace, especially for steel strip and wire bunches |
| 11/04/2004 | DE102004018406A1 Kaltgeformte Feder von hoher Ermüdungsfestigkeit und hoher Korrosionsermüdungsfestigkeit, Stahl für eine solche Feder und Verfahren zur Herstellung einer solchen Feder Cold-formed spring from high fatigue strength and high corrosion fatigue strength, steel for such a spring and method for manufacturing such a spring |
| 11/03/2004 | EP1473377A1 Magnetic base material, laminate from magnetic base material and method for production thereof |
| 11/03/2004 | EP1473372A1 Apparatus for transporting metallic parts |
| 11/03/2004 | EP1473106A1 Electron beam welding method providing post-weld heat treatment |
| 11/03/2004 | EP1472383A2 Precipitation hardenable austenitic steel |
| 11/03/2004 | EP1472115A1 Method of determining a heat treatment and member so treated |
| 11/03/2004 | EP1337362A4 A method of producing steel strip |
| 11/03/2004 | EP1326725A4 Production of thin steel strip |
| 11/03/2004 | CN2652942Y Non-muffle stainless steel strip bright annealing furnace |
| 11/03/2004 | CN1174110C Welding method, filler metal composition and article made therefrom |
| 11/03/2004 | CN1174106C Press cake for CVT band and manufacture method thereof |
| 11/02/2004 | US6811900 Applying multilayer coatings comprising titanium oxynitride and silicon nitride to surfaces of alloys; stabilization |
| 11/02/2004 | US6811622 Corrosion-resistant precipitation-hardened austenitic steel containing large amount of intersticially dissolved nitrogen |
| 11/02/2004 | US6811581 High-speed tool steel gear cutting tool and manufacturing method therefor |
| 11/02/2004 | US6811396 Continuous casting unit with post-arranged furnace, roughing stand and finishing train |
| 11/02/2004 | US6810615 Method for gun barrel manufacture using tailored autofrettage mandrels |
| 10/28/2004 | WO2004092435A1 Metal structure and method for production thereof |
| 10/28/2004 | US20040214030 an iron alloy containing carbon, chromium, manganese, molybdenum, nickel, silicon, vanadium, niobium and tantalum for a working part of an indefinite chill roll; high strength, low-alloy cast iron will not adhere or weld to rolling stock |
| 10/28/2004 | US20040213647 Device for the transport of metallic work pieces |
| 10/28/2004 | US20040211064 Method for manufacturing a structural member of a vehicle |
| 10/28/2004 | DE10315957A1 Schraube mit einer partiell gehärteten Funktionsspitze und Verfahren zu ihrer Herstellung Screw with a partially hardened functional tip and processes for their preparation |
| 10/28/2004 | DE10315354A1 Glühgestell Glühgestell |
| 10/27/2004 | EP1469954A1 Method and installation for producing a hot rolled strip from austenitic rust-resistant steels |
| 10/27/2004 | EP1373589B1 Steel and steel tube for high-temperature use |
| 10/27/2004 | CN2651273Y YAG laser treating system for quenching metal needle cloth |
| 10/27/2004 | CN2651260Y Integral quenching cold water jetter of sucker rod |
| 10/27/2004 | CN2651259Y Integral quenching cold water jetter of sucker rod |
| 10/27/2004 | CN1541279A Method for strengthening steel channel member |
| 10/27/2004 | CN1540272A Appts. for transporting metal workpiece |
| 10/27/2004 | CN1540024A Hot-rolled steel strip for high strength electric resistance welding pipe and mfg. method thereof |
| 10/27/2004 | CN1540004A Therma processing method for crankshaft of high-power engine |
| 10/27/2004 | CN1540002A Induction heating technique for internal spline of tubular part |
| 10/27/2004 | CN1173062C 滚动轴承部件 Rolling Parts |
| 10/27/2004 | CN1173049C Technology for making cutting tool with high-speed steel and low-carbon steel |
| 10/27/2004 | CN1173048C Method and installation for producing dual-phase steel |
| 10/27/2004 | CN1172760C Heat treatment and sand removal for castings |
| 10/26/2004 | US6808571 Heat resistant carburized rolling bearing component and manufacturing method thereof |
| 10/26/2004 | US6808569 Cable for anchoring a tire carcass |
| 10/26/2004 | US6808103 Method for continuous high-speed welding of double-ply metal tubes and welding furnace for performing the same |
| 10/26/2004 | CA2223656C Stainless steel wire and process for manufacturing |
| 10/21/2004 | WO2004042790A8 Method for increasing the copper to superconductor ratio in a superconductor wire |
| 10/21/2004 | US20040209779 Method for increasing the copper to superconductor ratio in a superconductor wire |
| 10/21/2004 | US20040209216 Composite curtain assembly for continuous furnace entrance and exit |
| 10/21/2004 | US20040206426 Quenched and tempered steel wire with excellent cold forging properties |
| 10/21/2004 | US20040205951 Control method for a finishing train, arranged upstream of a cooling section, for rolling hot metal strip |
| 10/21/2004 | DE10332722B3 Use of a steel alloy containing alloying additions of manganese and silicon as a material for the production of spring plates for vehicle shock absorbers |
| 10/21/2004 | DE10322928B3 Production of molded parts made from heat-treated sheet steel used in automobile construction comprises unwinding the sheet steel from a coil and feeding the sheet steel to a heating arrangement, and further treating |
| 10/20/2004 | EP1469093A1 Steel wire for heat-resistant spring, heat-resistant spring and method for producing heat-resistant spring |
| 10/20/2004 | EP1469089A1 Plant for the production of metal sections |
| 10/20/2004 | EP1194604B1 Steel cold work tool, its use and manufacturing |
| 10/20/2004 | CN1171700C Method for laser compound treating surface of friction pair |
| 10/19/2004 | US6805975 Steel sheet for procelain enameling and method for production thereof, and enameled product and method for production thereof |
| 10/19/2004 | US6805757 Casting material for indefinite rollers with sleeve part and method for producing the same |
| 10/19/2004 | US6805555 Composite curtain assembly for continuous furnace entrance and exit |
| 10/14/2004 | WO2004087977A1 Steel for spring being excellent in resistance to setting and fatigue characteristics |
| 10/14/2004 | WO2004087969A2 Annealing frame |
| 10/14/2004 | WO2004087968A2 Method for the thermomechanical treatment of steel |
| 10/14/2004 | WO2004087367A2 Method for producing helical springs or stabilisers |
| 10/14/2004 | WO2004058441A3 Method for arc welding of ductile cast iron |
| 10/14/2004 | US20040201143 Method and apparatus for cooling hot rolled steel strip, and method for manufacturing hot rolled steel strip |
| 10/14/2004 | DE29724858U1 Suspension jet guide and stabiliser for lengths of preferably metal strips for use in annealing plant - has jet surfaces with round holes or slits in with ducts positioned between jet surfaces whose cross sections widen out towards edges |
| 10/14/2004 | DE202004012492U1 Beschickungsvorrichtung zur Beschickung eines Ofens mit Schüttgut The charging device for charging a furnace with bulk material |
| 10/14/2004 | DE10314115A1 Verfahren zur Umformung einer Platine aus einem Vergütungsstahl und Vorrichtung zur Durchführung des Verfahrens A method for forming a circuit board made of a tempering steel, and apparatus for carrying out the method |
| 10/14/2004 | CA2519764A1 Method for producing helical springs or stabilisers |
| 10/13/2004 | EP1466990A1 Screw with a partially hardened point and process for making same |
| 10/13/2004 | EP1466024A1 Method for the production of a siderurgical product made of carbon steel with a high copper content, and siderurgical product obtained according to said method |
| 10/13/2004 | EP1361930B1 Continuous casting unit with post-arranged furnace, roughing stand and finishing train |
| 10/13/2004 | EP1355747B1 Method for altering the profile of a roller strip |
| 10/13/2004 | CN2647869Y Gas strong circulating bell type annealing furnace system for washing cold cleaning |
| 10/13/2004 | CN2647868Y Electric radiant tube heating device for strip steel continuous heat treating furnace |
| 10/13/2004 | CN1537175A Method for cooling work pieces especially shape-rolled products from rail steel |
| 10/13/2004 | CN1536310A Appartus for transporting metal working piece |
| 10/13/2004 | CN1536236A Functional pointed screw with local hardening and its making method |
| 10/13/2004 | CN1170947C Method for manufacturing high strength bolt excellent in resistance to delayed fracture and relaxation |
| 10/13/2004 | CN1170752C Vibration-damper for steel sheet |