| Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082) |
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| 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 | CA2249964C Martensitic stainless steel pipe and method for manufacturing the same |
| 05/16/2002 | WO2002038984A1 Toroidal continuously variable transmission and method of manufacturing the transmission |
| 05/16/2002 | WO2002038818A1 Method for producing a cold rolled strip that is cold formed with low degrees of deformation |
| 05/16/2002 | WO2002038817A1 Double-taper steel wire and continuous heat treating method and device therefor |
| 05/16/2002 | WO2002038814A2 Furnace roller and cast tire therefor |
| 05/16/2002 | WO2002038307A1 A chain cooling arrangement |
| 05/16/2002 | DE10143073A1 Stahl mit niedrigem Kohlenstoffgehalt und Verfahren zum Herstellen eines strukturellen Stahlrohrs mit hoher Zähigkeit bei kalten Temperaturen Steel with low carbon content and method for manufacturing a structural steel pipe with a high toughness at low temperatures |
| 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 |
| 05/15/2002 | EP1205563A1 Surface decarburization of a drill bit having a refined primary cutting edge |
| 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 | EP1069962B1 Deep-drawn parts made of spring sheet steel which are especially used as a lightweight structural member or a vehicle body part, and a method for the production thereof |
| 05/15/2002 | EP0894150B1 Top hat furnace |
| 05/15/2002 | EP0682770B1 Furnace for receiving longitudinally extending workpieces and processing assembly including the furnace |
| 05/15/2002 | CN2491459Y Leaf spring forming quenching machine |
| 05/15/2002 | CN2491458Y Leaf spring forming quenching machine |
| 05/15/2002 | CN1084871C Sealing device for doorways of partitions of continuous annealing furnace, continuous coating equipment, and the like |
| 05/15/2002 | CN1084797C 具有优秀成形性、面板定形性和抗硌痕性的冷轧钢板与镀锌钢板及其制造方法 With excellent formability, panel setting and dent-resistance of cold rolled steel and galvanized steel sheets |
| 05/14/2002 | US6387191 Railway wheels resistant to martensite transformation |
| 05/14/2002 | US6386583 Low-carbon high-strength steel |
| 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 | WO2001090433A3 SURFACE TREATMENT OF AUSTENITIC Ni-Fe-Cr-BASED ALLOYS |
| 05/08/2002 | EP1203918A1 Method for tempering workpieces in a furnace with an protective gas atmosphere |
| 05/08/2002 | EP1203829A2 Wire rod for drawing superior in twisting characteristics and method for production thereof |
| 05/08/2002 | EP1203828A1 Surface decarburization of a drill bit having a refined primary cutting edge |
| 05/08/2002 | EP1203644A2 Dual hardness die |
| 05/08/2002 | EP0818545B1 Process for continuously casting sheet metal |
| 05/08/2002 | DE10100829C1 Induction annealing device used for conductively heating a wire comprises transformers with parallel primary windings each wound around a magnetic core formed by a packet of annular cores made of highly permeable material |
| 05/08/2002 | CN2490167Y Dew-point detecting device of continuous annealing furnace |
| 05/08/2002 | CN1348507A Steel cold work tool, its use and manufacturing |
| 05/07/2002 | US6383317 Steels |
| 05/07/2002 | US6383316 Precipitated hardening stainless steel |
| 05/07/2002 | US6383311 High strength drive shaft and process for producing the same |
| 05/03/2002 | CA2358370A1 Dual hardness die |
| 05/02/2002 | WO2002034957A1 Sintered sprocket |
| 05/02/2002 | WO2002034459A1 Method and apparatus for welding pipes together |
| 05/02/2002 | US20020051695 Light alloy thread-forming screw and its production method |
| 05/02/2002 | US20020050308 Heat resistant carburized rolling bearing component and manufacturing method thereof |
| 05/02/2002 | EP1201781A2 Non-stainless steel nitrided piston ring, and method of making the same |
| 05/02/2002 | EP1201776A2 High speed tool steel gear cutting tool and manufacturing method thereof |
| 05/02/2002 | EP1201773A1 High-strength spring and production method therefor |
| 05/02/2002 | EP1201037A1 Method and device for cooling a metal strip |
| 05/02/2002 | EP1200647A1 Method for producing improved cold rolled strip that is capable of being deep drawn or ironed, and cold rolled strip, preferably used for producing cylindrical containers and, in particular, battery containers |
| 05/02/2002 | EP1200635A1 High resistance steel band or sheet and method for the production thereof |
| 05/02/2002 | DE10051606A1 Verfahren und Vorrichtung zum Glühen von Rohren Method and apparatus for annealing pipes |
| 05/01/2002 | CN2488634Y Laser heat treating machine for working daily-use cutter |
| 05/01/2002 | CN2488633Y Automatic controller of laser heat treating machine for daily-use cutter |
| 05/01/2002 | CN1347463A Casting material for indefinite rollers with sleeve part and method for producing same |
| 05/01/2002 | CN1347462A Rolling bearing steel having surface with lower baintic structure and method for production thereof |
| 05/01/2002 | CN1346899A Fe-Ni permalloy, method for mfg same and casting brank |
| 05/01/2002 | CN1083896C Steel band heat-treating apparatus by gas jet stream |
| 05/01/2002 | CN1083894C Process for mfg. strip made of alloy of iron-nickel type from continuously cast thin strip |
| 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 | 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 |
| 04/25/2002 | DE10049660A1 Verfahren zum Herstellen lokal verstärkter Blechumformteile A method for producing the locally enhanced formed sheet metal parts |
| 04/24/2002 | EP1198605A2 Methods of forming steel |
| 04/24/2002 | EP1198307A1 Metal gasket and method of manufacture |
| 04/24/2002 | CN1345984A Hot-rolled steel sheet with fine antiweatherability and working property and method for making same |
| 04/24/2002 | CN1345980A Ultralow temp. treating technology for double-metal band-saw blade |
| 04/24/2002 | CN1083491C Heat treatment technology for crankshaft |
| 04/24/2002 | CN1083490C Method for cold rolling thin and inner shield cover steel plate having excillent magnetic field shield property |
| 04/23/2002 | US6375763 Pearlitic steel railroad rail |
| 04/23/2002 | US6374932 Heat management drilling system and method |
| 04/23/2002 | US6374704 Steel-tooth bit with improved toughness |
| 04/18/2002 | US20020043358 Production of thin steel strip |
| 04/18/2002 | US20020043357 Method of producing steel strip |
| 04/18/2002 | US20020043314 Method of manufacturing fe-ni alloy |
| 04/18/2002 | US20020043313 Utilizing and benefitting from the energy of pulses, oscillations and impacts on an exterior surface of a solid work product to rearrange the interior product structure, typically by accompanying plstic deformation; |
| 04/18/2002 | US20020043304 Method of producing steel strip |
| 04/18/2002 | US20020043092 Method and apparatus for flexible manufacturing a discrete curved product from feed stock |
| 04/18/2002 | DE10050673C1 Heat treatment, e.g. annealing, of workpieces in conveyor furnace under inert and reductant gases continues in inert atmosphere on reaching upper limiting value of oxygen partial pressure |
| 04/18/2002 | DE10046273A1 Process for cooling a metal strip made of a light metal alloy, e.g. aluminum alloy comprises forcing the strip in a direction behind the cooling section with a cross-section having the shape of a circle to reduce its deformation |
| 04/17/2002 | EP1197569A1 Fe-Ni permalloy and method of producing the same |
| 04/17/2002 | EP1196643A1 Method and device for hardening bearing surfaces of crankshafts |
| 04/17/2002 | EP1196256A1 Integrated continuous casting and in-line hot rolling process, as well as relative process with intermediate coiling and uncoiling of the pre-strip |
| 04/17/2002 | CN1083099C Floating furnace |
| 04/17/2002 | CN1083013C Heat treating method and apparatus for producing high duty rails by waste heat from rolling process |
| 04/17/2002 | CN1082855C Steel pipe manufacturing method and apparatus and steel pipe |
| 04/17/2002 | CN1082835C Method and device for producing honeycombed body of heat-treated two or multilayered metal foils |
| 04/16/2002 | US6372057 Steel alloy railway wheels |
| 04/16/2002 | US6372056 Tensile strength, shaving properties and green drawing properties important in spring production |
| 04/11/2002 | WO2002028569A1 A method of producing steel strip |
| 04/11/2002 | WO2002010599A3 High speed angular contact ball bearing |
| 04/11/2002 | US20020040744 Steel wire rod for cold forging and method for producing the same |
| 04/11/2002 | US20020040743 Rolling shaft |
| 04/11/2002 | DE10048583A1 Cylindrical inside wall processing method for bore especially running surface of piston for vehicle involves evaluation process radiation from processing location for quality determination |
| 04/11/2002 | CA2422133A1 A method of producing steel strip |
| 04/10/2002 | EP1195208A2 Method to produce locally reinforced sheet metal |
| 04/10/2002 | EP1194727A1 Annealing furnace |
| 04/10/2002 | EP1194604A1 Steel cold work tool, its use and manufacturing |
| 04/10/2002 | EP1194601A1 Coil area for in-line treatment of rolled products |