| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 06/18/2002 | US6407372 Eccentric driving apparatus |
| 06/18/2002 | US6407010 Single-substrate-heat-processing apparatus and method for semiconductor process |
| 06/18/2002 | US6406569 Heat treatment of rails and cooling |
| 06/18/2002 | US6406567 Stress relieving of an age hardenable aluminium alloy product |
| 06/18/2002 | US6406565 High toughness spring steel |
| 06/13/2002 | WO2002046486A1 High strength hot rolled steel plate excellent in enlargeability and ductility and method for production thereof |
| 06/13/2002 | WO2002046479A1 Method for baking steel part |
| 06/13/2002 | US20020069946 Forging method |
| 06/13/2002 | US20020069945 Method for manufacturing structural parts for automobile body construction |
| 06/13/2002 | US20020069939 Method of manufacturing an HLA for an internal combustion engine |
| 06/13/2002 | US20020069938 Formed member made of steel sheet and method for producing same |
| 06/12/2002 | EP1213363A1 Method for making wear-resistant surface layers on precipitation hardenable materials |
| 06/12/2002 | EP1212472A2 Contour forming of metals by laser peening |
| 06/11/2002 | US6402863 Heat treatment for 9Ni-4Co-0.30C type steels |
| 06/11/2002 | US6402862 Method of hardening a bushing of a track chain |
| 06/11/2002 | US6401941 Rack for loading parts for heat treatment |
| 06/11/2002 | CA2268698C Induction heating system with a flexible coil |
| 06/06/2002 | WO2002044430A1 Quenching method and apparatus |
| 06/06/2002 | WO2002044429A2 Bainite blades |
| 06/06/2002 | DE10059693A1 Ball-and-socket joint for attaching trailer to tractor has ball attached to tractor tow bar, ball being made from spherolitic cast iron and heat treated with laser to produce grid of harder points over softer surface of ball |
| 06/05/2002 | EP1211329A2 Process and apparatus for high pressure gas quenching in an atmospheric furnace |
| 06/05/2002 | CN1352700A Process for improvement of magnetic characteristics in grain oriented electrical silicon steel sheet by laser treatment |
| 06/05/2002 | CN1351925A Double hardness mold |
| 06/04/2002 | US6399928 Device for hardening cylindrical bearing points of a shaft |
| 06/04/2002 | US6398886 Surface-layer-hardening of calibrated contact zones, above an unhardened matrix |
| 06/04/2002 | US6398885 Tempering by using electrical or infrared heat, to a controlled depth; efficiency; |
| 06/04/2002 | US6398883 Friction stir grain refinement of structural members |
| 06/04/2002 | US6398881 High carbon steels having a melted ledeburite surface layer with a high cementite content on a martensite hardening zone produced by high energy surface melting; noncracking |
| 06/04/2002 | CA2364356A1 Process and apparatus for high pressure gas quenching in an atmospheric furnace |
| 05/30/2002 | WO2002004145A3 Method and apparatus for the direct production of scale-free thin metal strip |
| 05/30/2002 | US20020062942 Method for controlling a continuous strip steel casting process based on customer-specified requirements |
| 05/30/2002 | US20020062888 Quenching method |
| 05/29/2002 | EP1208243A1 Method for hardening at least one surface of a component wall and a device for carrying out said method |
| 05/29/2002 | DE10141826A1 Verfahren zur Härtung einer Hülse einer Raupenkette Method of curing a sleeve of a crawler |
| 05/29/2002 | CN1351186A Manufacture of electric steel plates with high magnetic flux density orientation |
| 05/29/2002 | CN1085733C Continuous annealing furnace, rolling bearing, annealing method, and method of manufacturing inner and outer races of deeply groove ball bearing |
| 05/28/2002 | US6395108 Flat product, such as sheet, made of steel having a high yield strength and exhibiting good ductility and process for manufacturing this product |
| 05/28/2002 | US6394793 Method and apparatus of cooling heat-treated work pieces |
| 05/23/2002 | WO2002040731A1 STEEL PLATE TO BE PRECIPITATING TiN+CuS FOR WELDED STRUCTURES, METHOD FOR MANUFACTURING THE SAME, WELDING FABRIC USING THE SAME |
| 05/22/2002 | EP1207211A2 Device for heat treating metal workpieces |
| 05/22/2002 | EP1207005A1 Heat treatment of weld repaired gas turbine engine components |
| 05/22/2002 | EP1206583A1 Annealing plant |
| 05/22/2002 | EP1040458A4 Multi-thread re-entrant marker with transverse-anisotropy flux concentrators |
| 05/22/2002 | EP1030755B1 Crankshaft machining + hardening + machining + finishing |
| 05/22/2002 | CN1085259C Roller-chain pin after being coated |
| 05/22/2002 | CN1085258C Ultra-high strength, weldable steels with excellent ultra-low temperature toughness |
| 05/21/2002 | US6393044 High efficiency induction melting system |
| 05/21/2002 | US6391126 Method for producing aging-resistant strip from an aluminum-killed steel |
| 05/21/2002 | US6390924 Applying inductive hardening to carbon steel |
| 05/21/2002 | US6390811 High-temperature and high-pressure treatment device |
| 05/16/2002 | WO2002039791A1 Atmospheric plasma method for treating sheet electricity conducting materials and device therefor |
| 05/16/2002 | WO2002038984A1 Toroidal continuously variable transmission and method of manufacturing the transmission |
| 05/16/2002 | WO2002038817A1 Double-taper steel wire and continuous heat treating method and device therefor |
| 05/16/2002 | WO2002038307A1 A chain cooling arrangement |
| 05/16/2002 | US20020058224 Combination conduction/convection furnace |
| 05/16/2002 | DE10055662A1 Production of brake disks used for cars and motorbikes comprises rotating brake disk directly before fine processing, heating to selected heating temperature during rotation and slowly cooling to below room temperature |
| 05/16/2002 | DE10054765A1 Heat treatment furnace used for heat treating steel comprises a housing containing a heating chamber with a treatment chamber having a deep cooling system |
| 05/16/2002 | CA2424891A1 Atmospheric plasma method for treating sheet electricity conducting materials and device therefor |
| 05/15/2002 | EP1205562A1 Process and device for heat treating metal workpieces by immersion in a furnace |
| 05/15/2002 | EP1204772A2 Method for producing welded steel pipes with a high degree of strength, ductility and deformability |
| 05/15/2002 | EP1204771A1 Semifinished and finished products made of austenitic special steel and method for the production thereof |
| 05/15/2002 | EP1204770A1 Method for making a continuous steel strip |
| 05/15/2002 | EP0894150B1 Top hat furnace |
| 05/15/2002 | CN1084871C Sealing device for doorways of partitions of continuous annealing furnace, continuous coating equipment, and the like |
| 05/15/2002 | CN1084794C Pitting resistant duplex stainless steel alloy with improved mechinability |
| 05/15/2002 | CN1084647C Method for producing fully-threaded, bright, high strength and very long screw bolt |
| 05/10/2002 | WO2002036985A2 Induction hardening coil for a crankshaft |
| 05/10/2002 | WO2002036835A1 Heat-treatment furnace having a deep-cooling system |
| 05/10/2002 | WO2001040694A3 Pressurized fluid pipe |
| 05/10/2002 | EP1144893A3 Pressurized fluid pipe |
| 05/09/2002 | US20020055004 For use in turbine blade and a turbine vane |
| 05/08/2002 | EP1203918A1 Method for tempering workpieces in a furnace with an protective gas atmosphere |
| 05/08/2002 | EP1203644A2 Dual hardness die |
| 05/08/2002 | CN2490166Y Quenching bath |
| 05/07/2002 | US6383311 High strength drive shaft and process for producing the same |
| 05/07/2002 | US6383297 Method and device for joint oxydation and heat treatment of workpieces |
| 05/03/2002 | CA2358370A1 Dual hardness die |
| 05/02/2002 | US20020050670 Method of reheating metallurgical products |
| 05/02/2002 | US20020050308 Heat resistant carburized rolling bearing component and manufacturing method thereof |
| 05/02/2002 | EP1201780A1 Steel plate having excellent burring workability together with high fatigue strength, and method for producing the same |
| 05/02/2002 | EP1201774A2 Forging method |
| 05/02/2002 | EP1201037A1 Method and device for cooling a metal strip |
| 05/02/2002 | EP1200638A1 Improved bainitic steel |
| 05/02/2002 | EP1200637A1 Powder metallurgy manufactured high speed steel |
| 05/02/2002 | EP1200636A1 Process for the improvement of the magnetic characteristics in grain oriented electrical silicon steel sheets by laser treatment |
| 05/02/2002 | EP1114196B1 Method for cleaning metallic surfaces |
| 05/02/2002 | EP1015647B1 Method for thermal treatment of parts |
| 05/02/2002 | DE10051606A1 Verfahren und Vorrichtung zum Glühen von Rohren Method and apparatus for annealing pipes |
| 05/01/2002 | CN2488635Y Water cooling and airflow protector in laser intensifying processor for surface of inner bore |
| 05/01/2002 | CN1347462A Rolling bearing steel having surface with lower baintic structure and method for production thereof |
| 05/01/2002 | CN1083896C Steel band heat-treating apparatus by gas jet stream |
| 04/30/2002 | US6379481 Steel sheet |
| 04/30/2002 | US6379479 Steel member surface treatment method |
| 04/30/2002 | US6379475 Tools for dies, punches, stamping cores, steels, carburizing, nitriding and induction hardening |
| 04/30/2002 | US6379473 Method of manufacturing laminated ring using molten salt composition |
| 04/25/2002 | WO2002033133A1 Method and device for annealing tubes |
| 04/25/2002 | WO2002033132A1 Proceeding when producing pieces of metal materials capable of being hardened, a production process and a production line |
| 04/25/2002 | WO2002033131A1 Method and device for producing a treatment gas containing co and h2, for thermal treatment |
| 04/25/2002 | US20020048683 Low-sulfur article having a platinum-aluminide protective layer, and its preparation |
| 04/25/2002 | DE10143652A1 Induction hardening workpieces made from hardenable steel comprises inductively heating the workpiece, measuring the operating parameters of the induction hardening machine, and subsequently cooling |