| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 10/10/2000 | US6129794 Method of manufacturing a gear wheel |
| 10/10/2000 | US6128820 Method of repairing damaged turbine rotor wheels using differentially controlled temperatures |
| 10/05/2000 | DE19914238A1 Heat treatment device, e.g. a vacuum oven or cold chamber, comprises a ventilation wheel, and a circular opening arranged on the base plate of the wheel |
| 10/04/2000 | EP1040458A1 Multi-thread re-entrant marker with transverse-anisotropy flux concentrators |
| 10/04/2000 | EP1040309A1 Gas seal for continuous thermal treatment facilities operated with a protective gas atmosphere |
| 10/04/2000 | EP1040305A1 Process components, containers, and pipes suitable for containing and transporting cryogenic temperature fluids |
| 10/04/2000 | EP1040208A1 Tin-bearing free-machining steel |
| 10/04/2000 | EP1040205A1 Ultra-high strength dual phase steels with excellent cryogenic temperature toughness |
| 10/04/2000 | CN1268914A Cutting moud and its mfg. method |
| 10/03/2000 | US6126891 Spraying hydrogen and nitrogen gas mixture; recirculation with circuit of ducts comprising compensators |
| 10/03/2000 | CA2197015C Method and apparatus for heat treatment including h2/h20 furnace region control |
| 09/28/2000 | DE19955386A1 Hochdruckfeste Antriebswelle und Verfahren zur Herstellung derselben High-pressure drive shaft and method of making same |
| 09/28/2000 | DE19917039C1 Heat treatment installation, e.g. for salt, oil or water bath quenching and tempering of steel parts, has a quench bath walking beam system for positioning parts alternately on a base rack and a lifting beam during quenching |
| 09/27/2000 | EP1038979A1 Cast steel material for pressure vessels and method of making a pressure vessel by using same |
| 09/27/2000 | EP1038040A1 Heat treatment of wearable working tool |
| 09/27/2000 | CN1267737A Isothermal quenching process for preparing delayed fracture resisting high-strength steel |
| 09/27/2000 | CN1267736A Structural alloy steel crystallite superfining method |
| 09/27/2000 | CN1056789C Method and device for manufacturing cold rolled metal sheets or strips and metal sheets or strips obtained |
| 09/26/2000 | US6123785 Product and process for producing constant velocity joint having improved cold workability and strength |
| 09/21/2000 | WO2000055381A1 Method of producing a hot-rolled strip |
| 09/21/2000 | WO2000039352A3 Ultra-high strength steels with excellent cryogenic temperature toughness |
| 09/20/2000 | EP0877824B1 Ready-to-use metal wire and method for producing same |
| 09/20/2000 | EP0630417B1 High strength steel sway bars and method of making |
| 09/20/2000 | CN2397126Y Laser intensified processing equipment for internal surface of thin small and long tube piece |
| 09/20/2000 | CN1056651C Method for treatment of cold-rolled stainless steel strip or sheet |
| 09/19/2000 | US6119347 Method for manufacturing balls for bearing and products thereby |
| 09/14/2000 | DE19911067A1 Verfahren zur Ausbildung einer Anrißstelle zum Bruchtrennen eines Bauteiles aus einem Kohlenstoffstahl A method of forming a Anrißstelle for the fracture separation of a component from a carbon steel |
| 09/13/2000 | EP1034868A1 Method for forming a cracking site for fracture separation of a component of carbon steel |
| 09/13/2000 | EP1034314A1 Device for electro-inductive hardening of bearing surfaces and transition radii in crankshafts |
| 09/13/2000 | EP0731883B1 Method of treating brake pads |
| 09/13/2000 | CN2396356Y Vacuum annealing furnace |
| 09/12/2000 | US6115917 Single position turbine rotor repair method |
| 09/07/2000 | DE19909316A1 Heat treatment arrangement used as a vacuum oven for tempering workpieces has a device for changing the flow direction formed as a segment ring with centrally arranged suction supports in contact with an aerator |
| 09/07/2000 | DE19906597A1 Induction heater for heating metallic parts such as ball bearings, bushes, gear wheels and slides comprises a flat coil with one or more windings |
| 09/06/2000 | EP1033413A2 Quenching device for workpieces |
| 09/06/2000 | EP1032770A2 Bainitically hardened brake disk |
| 09/06/2000 | EP1032716A1 Coil box oven |
| 09/06/2000 | CN2394919Y Plasma torch nozzle for surface quenching of iron and steel piece |
| 09/06/2000 | CN1265711A Ultra-high strength, weldable, essentially boron-free steels with superior toughness |
| 09/06/2000 | CN1265710A Ultra-high strength, weldable, boron-containing steels withsuperiof toughness |
| 09/06/2000 | CN1265709A Ultra-high strength, weldable steels with excellent ultra-low temperature toughness |
| 09/06/2000 | CN1265708A Method for producing ultra-high strength, weldable steels with superior toughness |
| 09/06/2000 | CN1265427A Globurizing method of hypoutectoid low alloyed steel |
| 09/06/2000 | CN1056246C Method and apparatus for continuous field annealing of amorphous mamorphous metal tramsformer cores |
| 09/05/2000 | US6114651 Laser beam apparatus and workpiece machining process |
| 09/05/2000 | US6113386 Method and apparatus for uniformly heating a furnace |
| 09/05/2000 | US6112970 Continuous atmosphere heat treating furnace |
| 08/31/2000 | WO2000050661A1 Low temperature case hardening processes |
| 08/31/2000 | WO2000050658A1 High strength galvanized steel plate excellent in adhesion of plated metal and formability in press working and high strength alloy galvanized steel plate and method for production thereof |
| 08/31/2000 | DE19911287C1 Verfahren zum Erzeugen eines Warmbandes A method for producing a hot strip |
| 08/30/2000 | EP1031631A2 A method of spheroidizing annealing of hypo-eutectoid low alloy steel |
| 08/30/2000 | EP1030755A1 Crankshaft machining + hardening + machining + finishing |
| 08/30/2000 | CN1264817A Cooling method for high temp objects and cooling appts. thereof |
| 08/29/2000 | US6109914 Gas flow furnace |
| 08/24/2000 | WO2000049304A1 Rolling bearing |
| 08/23/2000 | EP1029933A1 Device for heat exchanging with a flat product |
| 08/23/2000 | EP1029932A1 Process for heat treatment of steel gear wheel |
| 08/23/2000 | EP1029720A2 Manufacturing method for hollow stabilizer |
| 08/23/2000 | EP1029091A1 Method and unit for heat-treating fine-grained materials in a coarse-grained fluidized bed |
| 08/23/2000 | EP1029090A1 Improved process for the annealing of drawn carbon steel rolls and coils of carbon steel sheet |
| 08/23/2000 | EP0871786B1 A method and an apparatus for the treatment of components by a gas mixture |
| 08/23/2000 | CN1264028A Anneal oven for heat treatment |
| 08/22/2000 | US6106837 Inhalation of green apple odorant |
| 08/22/2000 | US6106764 Apparatus for scavenging cold-drawn, coil-forming tubes in a roller hearth furnace |
| 08/22/2000 | US6106638 Process for manufacturing thin strip of ferritic stainless steel, and thin strip thus obtained |
| 08/22/2000 | US6106637 Microalloyed steel wire |
| 08/22/2000 | US6106636 Method and apparatus for controlling the atmosphere in a heat treatment furnace |
| 08/16/2000 | EP1028168A1 Heat treatment apparatus |
| 08/16/2000 | EP1027467A1 Method for manufacturing high carbon sintered powder metal steel parts of high density |
| 08/16/2000 | EP0894206B1 Laminated composite material and method of improving the surface hardness of laminated composite materials |
| 08/16/2000 | CN1263564A Rotatable joint for liquid quenching drum |
| 08/16/2000 | CN1055511C Continuous hot-dip-aluminum-plating method of steel alloy belt containing chromium |
| 08/15/2000 | US6103395 Composite multilayer bearing material |
| 08/15/2000 | US6103310 Treatment using an aqueous solution of the a silane type compound prior to heat treating, e.g. annealing, sheets which are in contact with a part of their surface, i.e. coiled or in tight packets; unnecessary to clean or degrease metal |
| 08/15/2000 | US6103027 Room temperature roll extrusion yields simultaneous reduction of wall thickness and elongation of the tube for uniform strength, corrosion resistance, complete recrystallization and chemical homogenization of seam |
| 08/15/2000 | US6102693 Preheating method in a continuous furnace |
| 08/10/2000 | WO2000046416A1 Method of making a weathering grade plate and product therefrom |
| 08/10/2000 | DE19905307A1 Selective steel workpiece surface hardening, e.g. of a welded synchromesh body and gear wheel assembly for a vehicle, comprises cooling one workpiece section during surface hardening of another section |
| 08/10/2000 | CA2361714A1 Method of making a weathering grade plate and product therefrom |
| 08/09/2000 | EP1025920A2 A method for producing a multilayer thin-walled bellows of stainless steel |
| 08/09/2000 | EP1025272A1 Ultra-high strength, weldable steels with excellent ultra-low temperature toughness |
| 08/09/2000 | EP1025271A1 Ultra-high strength, weldable, essentially boron-free steels wit h superior toughness |
| 08/09/2000 | EP1024917A1 A steel and a heat treated tool thereof manufactured by an integrated powder metallurgical process and use of the steel for tools |
| 08/09/2000 | CN1262709A Method for performing heat treatment on metallic rings, and bearing ring thus obtained |
| 08/09/2000 | CN1262333A Technology for heat treatment and surficial treatment of cylinder sleeve |
| 08/08/2000 | US6099667 Uniformly discharging gas over the width of the steel substrate, and dissipating electrical power from the plasma discharges into the steel resulting in uniform heating |
| 08/08/2000 | US6099666 Variable cooling rate quench method and apparatus |
| 08/08/2000 | US6099665 Method for producing Cr-Ni type stainless steel thin sheet having excellent surface quality |
| 08/08/2000 | CA2193847C Cold formed high-strength steel structural members |
| 08/08/2000 | CA2147559C Non-oriented electromagnetic steel sheet with low iron loss after stress relief annealing, and core of motor or transformer |
| 08/03/2000 | WO2000044956A1 High-hardness powder metallurgy tool steel and article made therefrom |
| 08/03/2000 | WO2000044954A1 Wire for high-fatigue-strength steel wire, steel wire and production method therefor |
| 08/03/2000 | WO2000044946A1 Metal processing method |
| 08/03/2000 | WO2000044945A1 Continuous furnace comprising a device for quenching workpieces and quenching method |
| 08/03/2000 | WO2000044511A1 Hardened steel security materials |
| 08/03/2000 | WO2000044321A2 Expandable element delivery system |
| 08/03/2000 | WO2000044319A1 Expandable intervertebral spacer |
| 08/03/2000 | WO2000026427A8 Steel, use of the steel, product made of the steel and method of producing the steel |
| 08/03/2000 | DE19919738A1 Durchlaufofen mit einer Einrichtung zum Abschrecken von Werkstücken sowie Abschreckverfahren Continuous furnace with a device for quenching workpieces, as well as quenching |
| 08/02/2000 | EP1024205A2 Surface heat treatment of piston rings |