| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 12/26/2001 | CN2467562Y Laser surface phase hardening railway switch guard rails |
| 12/26/2001 | CN1328171A Device for gas heating carburizing |
| 12/26/2001 | CN1076757C Method and device for cooling hot-rolled shaped material |
| 12/25/2001 | US6333121 Low-sulfur article having a platinum-aluminide protective layer and its preparation |
| 12/25/2001 | US6332714 Induction-hardened rolling bearing device |
| 12/25/2001 | US6332325 Apparatus and method for strengthening articles of manufacture through cryogenic thermal cycling |
| 12/20/2001 | WO2001096626A1 Steel alloy, plastic moulding tool and tough-hardened blank for plastic moulding tools |
| 12/20/2001 | CA2350773A1 Cooling gas injection nozzle for a vacuum heat treating furnace |
| 12/19/2001 | EP1164002A2 Punch and die |
| 12/19/2001 | EP1163063A1 Hardened steel security materials |
| 12/19/2001 | EP0946776B1 Method of annealing nonferrous metal parts without stickers |
| 12/19/2001 | CN1327144A Method for safety working under control gas using heat processing room |
| 12/19/2001 | CN1327074A Hardening method and device for steel rail |
| 12/18/2001 | US6331219 Form hot rolled steel rod into rings, conveying through cooling zone; embedding the rings in granular insulation material to reduce exposure to ambient air with a reduction in the development of surface scale; |
| 12/16/2001 | CA2349993A1 Punch and die |
| 12/13/2001 | WO2001068933A3 High performance carburizing stainless steel for high temperature use |
| 12/13/2001 | US20010051080 Chemically coated fasteners having improved penetration and withdrawal resistance |
| 12/13/2001 | US20010050281 Apparatus for quenching metallic material |
| 12/13/2001 | US20010050212 Continuous treatment apparatus |
| 12/13/2001 | US20010050121 Bushing for crawler belt and method of manufacture |
| 12/13/2001 | US20010050119 Rolling, cooling, coiling |
| 12/13/2001 | US20010049977 Method of quenching workpiece with hole, assistive tool for use in quenching, and crankshaft |
| 12/13/2001 | US20010049956 Hot-rolled steel with very high elasticity limit and mechanical resistance usable in particular for auto parts production |
| 12/13/2001 | DE10034357C1 Apparatus, for hardening the surfaces which limit a recess between two teeth of a toothed wheel or a toothed rack, comprises an inductor for heating each surface, a quenching device |
| 12/12/2001 | EP1162283A2 Friction stir grain refinement of structural members |
| 12/12/2001 | EP1162279A1 Gas-heated carburising installation |
| 12/12/2001 | EP1141644A4 Combination conduction/convection furnace |
| 12/12/2001 | EP0925377B1 Wear-resistant camshaft and method of producing the same |
| 12/12/2001 | EP0880422B1 Cutting die and method of making |
| 12/12/2001 | CN1326309A Lateral magnetic inducing heater with varying width of magnetic path |
| 12/12/2001 | CN1076009C 回火方法 Tempering method |
| 12/11/2001 | US6329635 Methods for weld monitoring and laser heat treatment monitoring |
| 12/11/2001 | US6328829 Constrained hardening method and apparatus for deformed bar workpieces |
| 12/11/2001 | US6328826 Casting strip from liquid steel; hot-rolling said strip on-line in one or more passes; first forced cooling of strip; holding until bainitic transformation; interrupting transformation by second forced cooling of strip; coiling |
| 12/06/2001 | CA2350004A1 Gas-heated carburizing equipment |
| 12/05/2001 | EP1160346A1 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 |
| 12/05/2001 | EP1160342A1 Method for securing a controlled atmosphere heat treating chamber |
| 12/05/2001 | EP1160341A2 Process and apparatus for hardening rails |
| 12/05/2001 | EP1159580A1 Method and apparatus for the destruction of suspected terrorist weapons by detonation in a contained environment |
| 12/05/2001 | EP1003920B1 Method for producing a high-strength track element and track element thus obtained |
| 12/05/2001 | CN2463396Y Gush-type quenching device |
| 12/05/2001 | CN2463395Y Multi-layer track bainitic isothermal quenching device |
| 12/05/2001 | CN2463394Y Transient electric energy surface hardening and surface alloying device |
| 12/05/2001 | CN1075838C Primary cooling method in continuously annealing steel strip |
| 12/04/2001 | US6325867 Bearing made from alloy steel containing specified amount of carbon, subjected to carbonitriding and hardening heat treatments and grinding of grinding allowance portion, having specified nitrogen content and gradient in surface layer |
| 11/29/2001 | WO2001090431A1 Cold rolled steel sheet and galvanized steel sheet having strain aging hardening property and method for producing the same |
| 11/29/2001 | WO2001090426A1 Method and device for induction hardening crankshafts |
| 11/29/2001 | US20010045426 Apparatus and method for heating a workpiece of metal |
| 11/29/2001 | US20010045024 Method of making safe a heat treatment enclosure operating under a controlled atmosphere |
| 11/29/2001 | DE10124740A1 Overriding clutch used in an I.C. engine comprises an outer element arranged around the inner element, a holder mounted between the inner and outer elements and provided with pockets, and gripping elements arranged in the pockets |
| 11/29/2001 | DE10026372A1 Laser processing of inner surface of cylindrical bore involves guiding beam over region of inner surface so separate, closed, axially separate laser alloy or laser coating tracks are produced |
| 11/28/2001 | EP0880423B1 Cutting die and method of forming |
| 11/28/2001 | CN2461936Y Multilayer rotary disk type bainite isothermal quenching appts. |
| 11/28/2001 | CN1323914A Controllable device and method for light metal quenching in liquid bath |
| 11/27/2001 | US6322747 Better hardness, toughness and reliability; used in automobiles, aircraft, industrial machinery |
| 11/27/2001 | CA2228808C Precision quenching apparatus and method with induction heating |
| 11/22/2001 | WO2001088216A1 Electroplating annealed thin sheets and method for producing the same |
| 11/22/2001 | US20010042575 Apparatus and method for suppressing growth of oxide film on coil |
| 11/22/2001 | US20010042393 Process for the manufacture of a part with very high mechanical properties, formed by stamping of a strip of rolled steel sheet and more particularly hot rolled and coated |
| 11/22/2001 | DE10102991A1 Device, for heating metal workpiece, has induction coil with variable frequency AC current, first frequency for heating predetermined workpiece region, second for heating separate object |
| 11/22/2001 | DE10024990A1 Process for inductively hardening crankshafts comprises using the central axis of the connecting peg to be hardened as the axis for the rotational movement of the crankshaft |
| 11/21/2001 | EP1156127A2 Steel for high bearing pressure-resistant member, having high machinability, and high bearing pressure-resistant member using same steel |
| 11/21/2001 | EP1156126A1 Process for manufacturing an Fe-Ni alloy strip |
| 11/21/2001 | CN2460255Y Laser heat-treating machine tool with movable working table type single arm structure |
| 11/21/2001 | CN1323360A Method for annealing an amorphous alloy and method for manufacturing a marker |
| 11/21/2001 | CN1323061A DC or AC electric field auxiliary annealing |
| 11/21/2001 | CN1322850A Liquid and steam protected antioxidant heat treatment method and equipment |
| 11/20/2001 | US6319337 Power transmission shaft |
| 11/20/2001 | US6318571 Loader device for supporting parts for heat treatment in a furnace |
| 11/15/2001 | WO2001085607A1 Gas generator and method for generating a treatment gas, which contains co and h2, for heat treating metallic material |
| 11/15/2001 | US20010039983 Rough rolling a slab of iron alloy, finish rolling the sheet bar using continuous hot finishing rolling mill, cooling the hot rolled steel strip on a runout table, coiling the strip, and final annealing to the cold-rolled steel strip |
| 11/15/2001 | DE10023410A1 Production of carbon monoxide- and hydrogen-containing treatment gas comprises forming treatment gas for catalytically converting hydrocarbon gas in catalyst retort to which heat can be fed and varied over its length |
| 11/15/2001 | DE10023409A1 Gas generator used for producing carbon monoxide- and hydrogen-containing treatment gas for heat treating metallic material comprises catalyst retort and device for heating partial regions of retort |
| 11/15/2001 | DE10021583A1 Assembly to carburize and harden steel workpiece charges has structured pressures in the transport tunnel and heating chambers and carburizing and quenching chambers to reduce energy costs |
| 11/14/2001 | EP1154028A1 Multiphase steel and method for its production |
| 11/14/2001 | EP1154024A1 Process and device for heat treating metallic workpieces |
| 11/14/2001 | EP1153527A1 High efficiency induction melting system |
| 11/14/2001 | EP1153147A1 Metal processing method |
| 11/14/2001 | EP1153146A1 Continuous furnace comprising a device for quenching workpieces and quenching method |
| 11/14/2001 | EP0714991B1 Sealing device for outlet/inlet of controlled atmosphere heat treatment furnace |
| 11/14/2001 | CN2459327Y Autoamtic gas carburizing quenching furnace |
| 11/14/2001 | CN2459326Y Reinforced U-shaped radiation pipe |
| 11/14/2001 | CN2459135Y Deformation controller for high-frequency quenching of cold forged straightening roll |
| 11/14/2001 | CN1322257A Selective case hardening processes at low temperature |
| 11/13/2001 | US6315845 Method of straightening sectional steel while simultaneously minimizing the internal stresses thereof |
| 11/13/2001 | US6315844 Method for producing high-strength track element and track element thus obtained |
| 11/13/2001 | US6315841 Induction hardened forged gear and process for preparing same |
| 11/13/2001 | US6315838 Densification via thermal treatment |
| 11/08/2001 | WO2001083157A1 Method of brazing and article made therefrom |
| 11/08/2001 | DE10020327A1 Device for processing workpieces, welding method for creating a folded-in weld seam and method for hardening metal workpieces uses a laser beam device to permeate the workpieces with laser radiation for their processing. |
| 11/07/2001 | EP1151146A1 High-hardness powder metallurgy tool steel and article made therefrom |
| 11/07/2001 | EP0975814B1 Heat treatment of steel |
| 11/07/2001 | CN1074463C Method and device for temper-hardening flat metal products |
| 11/06/2001 | US6312536 Hot-dip galvanized steel sheet and production thereof |
| 11/06/2001 | US6312529 Steel compositions and methods of processing for producing cold-formed and carburized components with fine-grained microstructures |
| 11/01/2001 | WO2001081644A1 Austenic steel |
| 11/01/2001 | WO2001081643A1 Rolling bearing component |
| 11/01/2001 | WO2001081641A1 Low-carbon steel sheet for mask of tension type cathode ray tube with bridge and mask and cathode ray tube |
| 11/01/2001 | WO2001081640A1 Steel plate having excellent burring workability together with high fatigue strength, and method for producing the same |
| 11/01/2001 | WO2001081638A1 HEAT TREATMENT FOR 9Ni-4Co-0.03C TYPE STEELS |