| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 12/07/2004 | CA2314143C Gas seal for continuous thermal treatment facilities operated with a protective gas atmosphere |
| 12/02/2004 | WO2004104237A1 Coil winding method for metal in bars |
| 12/02/2004 | US20040239019 Continuous vacuum carburizing furnace |
| 12/02/2004 | US20040239013 Process and device for producig a high-strength steel strip |
| 12/02/2004 | US20040238083 High strength cold rolled steel sheet with superior formability and weldability, and manufacturing method therefor |
| 12/02/2004 | US20040238073 Includes heating in oxygen atomsphere; simple, uniform passivation layer formation; imparting pitting corrosion resistance and fatigue strength material |
| 12/02/2004 | US20040237622 Method and apparatus for distorting a workpiece |
| 12/02/2004 | DE102004023031A1 Verfahren und Vorrichtung zum Kühlen bzw. Abschrecken von Brammen und Blechen mit Wasser in einem Kühlbecken Method and apparatus for cooling or quenching slabs and sheets with water in a cooling basin |
| 12/01/2004 | EP1482060A1 Continuous vacuum carburizing furnace |
| 12/01/2004 | EP1481753A1 Reduced mist laser shock peening |
| 12/01/2004 | EP1481107A1 Martensitic stainless steel and method for manufacturing the same |
| 12/01/2004 | EP1481102A1 Method of heat treatment of stainless steel. |
| 12/01/2004 | EP1218552A4 Low-carbon steels of superior mechanical and corrosion properties |
| 12/01/2004 | EP1119648B1 Cold workable steel bar or wire and process |
| 12/01/2004 | CN2659900Y Surface electric spark reinforcement appts. for pin shaft |
| 12/01/2004 | CN1550684A 动力传递轴 Power transmission shaft |
| 12/01/2004 | CN1550564A High strength Fe-Ni-Co series alloy for shadow mask |
| 12/01/2004 | CN1550560A Lower fluence boundary and low flow lasr shock peening |
| 12/01/2004 | CN1550281A Electron beam welding method providing post-weld heat treatment |
| 11/30/2004 | US6824883 Surface on a stainless steel matrix |
| 11/30/2004 | US6824736 Pusher furnace rails with plate-shaped sliding supports and sliding shoes |
| 11/30/2004 | CA2142825C Apparatus and method for precision gear finishing by controlled deformation |
| 11/25/2004 | US20040235576 Screw with a partially hardened functional tip and process for the production thereof |
| 11/25/2004 | US20040235575 Power transmission shaft |
| 11/25/2004 | US20040234180 Rolling, sliding part and process for producing the same |
| 11/25/2004 | US20040231763 Obtaining a fine-lamellar perlite structure in the edge region of the rail heads by specific heat treatment during cooling from the rolling heat without the formation of bainite; temperature of the more intensively cooled edge region is raised by intermediate heating to at least the core temperature |
| 11/25/2004 | US20040231762 Heat treated while inside the press; the sheet is unwound from a coil, heated to above its transformation point, pressed, cooled to below its crystalline-transformation point, and separated |
| 11/25/2004 | DE19736514C5 Verfahren zum gemeinsamen Oxidieren und Wärmebehandeln von Teilen A method for the joint oxidation and heat treatment of parts |
| 11/25/2004 | DE10361694A1 Verfahren zum Herstellen eines Strukturträgers eines Fahrzeugs A method of producing a structural beam of a vehicle |
| 11/24/2004 | EP1479926A2 Power transmission shaft |
| 11/24/2004 | EP1479784A1 Method for producing a formed component |
| 11/24/2004 | EP1478789A2 Device for use when hardening |
| 11/24/2004 | CN2658160Y Multi-fan atmosphere circulator of large pit furnace |
| 11/24/2004 | CN1549865A Heat treatment apparatus, heat treatment method, medium on which heat treatment program is recorded, and steel product |
| 11/24/2004 | CN1177073C Steel alloy, plastic moulding tool and tough-hardened blank for plastic moulding tools |
| 11/23/2004 | US6822311 Device for forming desired junction profile in semiconductor substrate including heat source for annealing substrate in which dopant has been diffused, means for producing dc or ac electrical field for exposing substrate during annealing |
| 11/23/2004 | US6821364 High speed, slow speed cooling; high strength, ductility |
| 11/23/2004 | US6821363 Preventing toughness loss; filling liquid into gaps and heating while simultaneously spray cooling opposite side |
| 11/23/2004 | US6821360 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 |
| 11/23/2004 | US6821114 Gas-cooled single chamber heat treating furnace, and method for gas cooling in the furnace |
| 11/23/2004 | CA2224496C Heating method and apparatus |
| 11/23/2004 | CA2217822C Structures having enhanced biaxial texture and method of fabricating same |
| 11/18/2004 | WO2004099450A1 Quenching fluid composition |
| 11/18/2004 | WO2004098804A1 Method and device for cooling or quenching slabs and sheets with water in a cooling pond |
| 11/18/2004 | US20040228561 Differential support structure, differential's component, method of manufacturing differential support structure, and method of manufacturing differential's component |
| 11/18/2004 | US20040227125 uisng mixture of light gas such as helium with other gas such as argon |
| 11/18/2004 | US20040226632 induction heating using heater coil; cooling; elongated metal article for motor vehicle suspension |
| 11/18/2004 | US20040226631 steel containing silicon, manganese, chromium, sulfur and iron; rolling resistance; wear resistance; aging resistance |
| 11/17/2004 | EP1476586A1 Steel, solid wheel, and tire for rail vehicles and method for producing parts of this type |
| 11/17/2004 | EP1476585A1 Gas quenching installation and the corresponding quenching method |
| 11/17/2004 | EP1476265A1 A method of cooling a hot isostatic pressing device and a hot isostatic pressing device |
| 11/17/2004 | EP1128875A4 Method and apparatus for containing and suppressing explosive detonations |
| 11/17/2004 | EP0612276B2 Heat treatment of metal castings and in-furnace sand reclamation |
| 11/17/2004 | CN2656430Y Rear wheel boss shaft quenching induction device |
| 11/17/2004 | CN2656429Y Multiring type induction heating salt bath furnace for heat treatment |
| 11/17/2004 | CN1176227C Heat treatment method of raising the hardness of structural alloy steel |
| 11/17/2004 | CN1176226C Quenching apparatus for rod parts |
| 11/16/2004 | US6818073 Method of producing steel strip |
| 11/16/2004 | US6818040 High nitrogen content; containing at least carbon, nitrogen, manganese, silicon, chromium, molybdenum, tungsten, iron and vanadium with niobium combination; cold work tools; friction and adhesive wear resistance |
| 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 | US20040223269 Side reading reduced GMR for high track density |
| 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 | EP1169485A4 Ultra-high strength ausaged steels with excellent cryogenic temperature toughness |
| 11/10/2004 | CN1545564A Method and device for quenching steel in pressurized air |
| 11/10/2004 | CN1544680A High silicon steel and method for preparing same |
| 11/09/2004 | US6815401 Oil composition for heat treatment of a gear and gear treated by using the oil composition |
| 11/09/2004 | US6814819 Press forming; hot and col rolling; annealing; high strength; automobile bodies |
| 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 |
| 11/04/2004 | WO2004094057A1 Method and device for inhibiting contamination of a workpiece |
| 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 | US20040217094 Lower fluence boundary lasr shock peening |
| 11/03/2004 | EP1473376A1 High strength steel plate and method for production thereof |
| 11/03/2004 | EP1473375A1 Steel wire excellent in descalability in mecanical descaling and method for production thereof |
| 11/03/2004 | EP1473373A1 Lower fluence boundary laser shock peening |
| 11/03/2004 | EP1473106A1 Electron beam welding method providing post-weld heat treatment |
| 11/03/2004 | EP1339889A4 STEEL PLATE TO BE PRECIPITATING TiN+CuS FOR WELDED STRUCTURES, METHOD FOR MANUFACTURING THE SAME, WELDING FABRIC USING THE SAME |
| 11/03/2004 | EP1337362A4 A method of producing steel strip |
| 11/03/2004 | EP1326725A4 Production of thin steel strip |
| 11/03/2004 | CN2653408Y Sectional transport and transfer device for horizontal vacuum furnace |
| 11/03/2004 | CN1542224A Laser surface strengthened rail switch tongue |
| 11/03/2004 | CN1174106C Press cake for CVT band and manufacture method thereof |
| 11/02/2004 | US6811765 Thermal treatment of fine grain materials in a coarse-grain fluidized bed |
| 11/02/2004 | US6811624 Method for production of dual phase sheet steel |
| 11/02/2004 | US6811622 Corrosion-resistant precipitation-hardened austenitic steel containing large amount of intersticially dissolved nitrogen |
| 10/28/2004 | WO2004092434A1 Steel material with excellent rolling fatigue life and method of producing the same |
| 10/28/2004 | US20040214139 Surface modification process on metal dentures, products produced thereby, and the incorporated system thereof |
| 10/28/2004 | US20040211499 Non-Cu-based cast Al alloy and method for heat treatment thereof |
| 10/28/2004 | US20040211495 Dual phase steel strip suitable for galvanizing |
| 10/28/2004 | US20040211296 to recover valuable gases at any pressure in a process, including the recovery from high vacuum level container in the last stage of gas recovering; prevents quenching gas from being lost to the atmosphere; receiver vessel is able to maintain constant pressure by means of changing its volume |
| 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 |
| 10/27/2004 | EP1314339B1 Device for inductively heating metallic strips |
| 10/27/2004 | EP1144698A4 Ultra-high strength triple phase steels with excellent cryogenic temperature toughness |