| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 05/24/2000 | EP1003008A1 Method for manufacturing a gun barrel with an inner chromium liner |
| 05/24/2000 | EP1002885A2 Heat-resisting cast steel |
| 05/24/2000 | EP1002613A1 Atmosphere controlled workpiece heating chamber |
| 05/24/2000 | CN2379484Y Annealing hearth |
| 05/23/2000 | US6066212 Ultra-high strength dual phase steels with excellent cryogenic temperature toughness |
| 05/23/2000 | US6065964 Modular vacuum thermal processing installation |
| 05/23/2000 | CA2183441C Fine graphite uniform dispersion steel excellent in cold machinability, cuttability and hardenability, and production method for the same |
| 05/18/2000 | WO2000028098A1 Apparatus and process for treating a particulate material within a rotating retort |
| 05/18/2000 | DE19852759A1 Verfahren und Einrichtung zur Verringerung von Zunderbildung auf einem Walzgut Method and apparatus for reducing scale formation on a rolling |
| 05/17/2000 | EP1001237A1 Heating process of a continuous furnace, in particular for steel products and continuous furnace |
| 05/17/2000 | EP1001045A2 Heat-resisting cast steel |
| 05/17/2000 | EP1001044A2 Heat-resisting cast steel |
| 05/17/2000 | EP1001043A1 Martensitic stainless steel parts and method for producing the same |
| 05/17/2000 | EP1001040A1 Process for surface hardening of workpieces from casting materials, workpieces produced thereby and their use |
| 05/17/2000 | EP0769073B1 Cold formed high-strength steel structural members |
| 05/17/2000 | CN1253183A Multifunctional unit for polarized laser quenching machine |
| 05/11/2000 | WO2000026427A1 Steel, use of the steel, product made of the steel and method of producing the steel |
| 05/10/2000 | EP0999287A1 Method for heat treating steel workpieces and use of the obtained workpieces |
| 05/10/2000 | EP0979594A4 System, apparatus and method for heating metal products in an oscillating induction furnace |
| 05/10/2000 | EP0917500B1 Method of producing castings |
| 05/10/2000 | EP0830218A4 Structures having enhanced biaxial texture and method of fabricating same |
| 05/10/2000 | CN1252518A Sealing device for continuous heat treatment furnace and sealing method |
| 05/10/2000 | CA2286967A1 Method of heating a continuously charged furnace particularly for steel-making products, and continuously charged heating furnace |
| 05/09/2000 | US6059903 Method of cooling sectional girders |
| 05/09/2000 | US6059899 Quenched zone; hardness variation distribution |
| 05/09/2000 | CA2012270C A device for carrying out sequential thermal treatments under a vacuum |
| 05/04/2000 | WO2000025076A1 Method and device for saving energy in continuous annealing and processing lines |
| 05/04/2000 | DE19849757A1 Kontinuierlich betriebener Rollenherdofen mit nachgeordneter zwangskonvektiver Glühgutabkühlung Continuously operated roller hearth furnace with downstream zwangskonvektiver Glühgutabkühlung |
| 05/03/2000 | EP0996759A1 Amorphous magnetostrictive alloy with low cobalt content and method for annealing same |
| 05/03/2000 | EP0996751A1 Method for performing a heat treatment on metallic rings, and bearing ring thus obtained |
| 05/03/2000 | EP0655959B1 Apparatus and method for precision gear finishing by controlled deformation |
| 05/03/2000 | CN2376474Y Double water cooling plasma gun |
| 05/03/2000 | CN1252207A Induction heating coil and induction heating device using the same |
| 05/03/2000 | CN1252106A Ferromagnetic amorphous metallic alloy and annealing method |
| 05/03/2000 | CN1251865A Wire materials with high drawable property and manufacture thereof |
| 05/02/2000 | US6056913 Plant for the continuous heat treatment of steel strips or the like |
| 05/02/2000 | US6056830 Hydrogenating and alloying rare earth element, iron, and boron powders; phase transformation; hydrogen desorption |
| 04/27/2000 | WO2000023632A1 Case hardening structural steel, method for obtaining same and parts formed with same |
| 04/27/2000 | DE19947393A1 Stahldraht für hochfeste Federn und Verfahren zu seiner Herstellung Steel wire for high strength springs and method for its manufacture |
| 04/27/2000 | DE19846749A1 Aerodynamic seal used for continuous thermal treatment plants has separate slit nozzles arranged on each side of the metal strip |
| 04/27/2000 | DE19845805C1 Verfahren und Behandlungseinrichtung zum Abkühlen von hocherwärmten Metallbauteilen Method and device for cooling treatment of highly heated metal parts |
| 04/26/2000 | EP0995809A1 Steel for oil well pipes with high wet carbon dioxide gas corrosion resistance and high seawater corrosion resistance, and seamless oil well pipe |
| 04/26/2000 | EP0995807A1 Sealing apparatus in continuous heat-treatment furnace and sealing method |
| 04/26/2000 | EP0858574B1 Device for heat treatment |
| 04/26/2000 | CN1251619A Apparatus and method for cooling hot rolled steel rod |
| 04/25/2000 | US6054095 Widthwise uniform cooling system for steel strip in continuous steel strip heat treatment step |
| 04/25/2000 | US6053996 Method for the manufacture of a strip of formable steel |
| 04/20/2000 | WO2000022363A1 Gas seal for continuous thermal treatment facilities operated with a protective gas atmosphere |
| 04/20/2000 | WO2000022362A1 Method and apparatus for uniformly heating a furnace |
| 04/20/2000 | WO2000022177A1 Heat treatment of wearable working tool |
| 04/20/2000 | DE19847550A1 Arrangement for heat treating metallic workpieces has a grid enclosing the workpieces arranged between the chamber wall and the workpieces |
| 04/19/2000 | EP0994302A1 Liquid fuel burner suitable for a furnace to reheat steel industry products |
| 04/19/2000 | EP0994200A1 Threaded parts for aircraft |
| 04/19/2000 | EP0993881A2 Constrained hardening method and apparatus for deformed bar workpieces |
| 04/19/2000 | CN1250819A Steel with durable coatings,and method for mfg. same |
| 04/19/2000 | CN1250814A Fluid fuel burning nozzle of reheating furnace specially for heating iron or steel ingot |
| 04/19/2000 | CN1250694A Slowly cooling system for metal-rolling mill with particle type isolation materials |
| 04/18/2000 | US6051162 Process for the generation of a low dew-point, oxygen-free protective atmosphere for the performance of thermal treatments |
| 04/18/2000 | US6051078 Method and apparatus for controlling the atmosphere in heat treatment furnace |
| 04/18/2000 | US6050049 Selectively heat treated side intrusion beams and method for making the same |
| 04/18/2000 | US6049979 Methods for shielding a welding gas turbine repair of a damaged turbine rotor wheel dovetail |
| 04/18/2000 | CA2207273C Method and apparatus for plasma processing |
| 04/12/2000 | EP0992593A1 Method and device for continuous cooling of steel sheet |
| 04/12/2000 | EP0992592A2 Retarded cooling system with granular insulation material |
| 04/12/2000 | EP0992590A1 Process for bright annealing metals having high oxygen affinity |
| 04/12/2000 | EP0992300A2 Process for stretch forming age-hardened aluminium alloy sheets |
| 04/12/2000 | EP0991789A1 Tool steel composition |
| 04/12/2000 | EP0672194B1 Method and apparatus for controlling heat transfer between a container and workpieces |
| 04/12/2000 | CN1250106A Natural gas-burning controllable heat treatment technology |
| 04/11/2000 | US6048625 Wear resisting steel, sliding member for cylinder in internal combustion engine, and ring spring |
| 04/11/2000 | US6048418 Ring forming apparatus and heat treating process |
| 04/11/2000 | US6048417 Method and apparatus for heat treating a bushing |
| 04/11/2000 | US6048414 Rolling bearings and methods of producing the same |
| 04/11/2000 | US6047929 Radiant tube supporting apparatus |
| 04/09/2000 | CA2282973A1 Retarded cooling system with granular insulation material |
| 04/06/2000 | WO2000018972A1 Device and process for cooling metal components which were subjected to high temperatures |
| 04/06/2000 | WO2000018971A1 Method for changing the properties of the surfaces of work pieces |
| 04/05/2000 | EP0991302A1 Installation for heating up metallic products with staggered induction devices |
| 04/05/2000 | EP0990709A1 Apparatus and method for precision gear finishing by controlled deformation |
| 04/05/2000 | EP0990708A1 Process for producing coil springs |
| 04/05/2000 | EP0990470A1 Roll for a furnace for global or local continuous heating of metallic products by high-power induction heating device |
| 04/05/2000 | EP0990371A4 Induction heaters to improve transitions in continuous heating systems, and method |
| 04/05/2000 | EP0990371A1 Induction heaters to improve transitions in continuous heating systems, and method |
| 04/04/2000 | US6046430 Bearing having micropores, and design method therefor |
| 03/30/2000 | WO2000017405A1 Method and apparatus for heat treating steel |
| 03/30/2000 | CA2343305A1 Method and apparatus for heat treating steel |
| 03/29/2000 | EP0989196A1 High-strength heat-resistant steel, process for producing high-strength heat-resistant steel, and process for producing high-strength heat-resistant pipe |
| 03/29/2000 | EP0988404A1 Rotatable joint for a liquid quenching drum |
| 03/29/2000 | EP0795038B1 Sprocket and manufacturing method thereof |
| 03/29/2000 | EP0739253B1 Method and device for manufacturing cold rolled metal sheets or strips, and metal sheets or strips obtained |
| 03/29/2000 | CN1249005A Continuous annealing furnace, rolling bearing, annealing method, and method of manufacturing inner and outer races of deeply groove ball bearing |
| 03/29/2000 | CN1050784C Apparatus for cooling rolling belt |
| 03/28/2000 | US6042369 Fluidized-bed heat-treatment process and apparatus for use in a manufacturing line |
| 03/28/2000 | US6041632 Pipe forming roll apparatus and method |
| 03/22/2000 | EP0789093B1 Process for producing directional electrical sheet excellent in glass coating and magnetic properties |
| 03/22/2000 | EP0708183B1 High-carbon steel rod wire or steel wire excellent in workability in wire drawing and process for producing the same |
| 03/22/2000 | CN2370019Y Fast isothermal spheroidization annealing furnace |
| 03/22/2000 | CN2370018Y Surface treating device for metal part |
| 03/22/2000 | CN2370017Y Plasma quenching device for metal blade |
| 03/22/2000 | CN1247902A Impervious protective rubber belt for metal surface heat treatment and its making method |