| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 05/02/2001 | CN2428488Y Hanging-type freely-falling body heat-treatment apparatus |
| 05/02/2001 | CN1065282C Method for complete bainite hardening of steel |
| 05/02/2001 | CN1065204C Roller of ball-socket joint type |
| 05/01/2001 | US6224694 Method for heat-treating profiled rolling stock |
| 05/01/2001 | US6224689 Ultra-high strength, weldable, essentially boron-free steels with superior toughness |
| 05/01/2001 | US6224686 High-strength valve spring and it's manufacturing method |
| 04/26/2001 | WO2001029902A2 Device and method for tempering several process goods |
| 04/26/2001 | WO2000068443A3 Method for producing welded steel pipes with a high degree of strength, ductility and deformability |
| 04/26/2001 | US20010000377 Method and system for cooling strip material |
| 04/26/2001 | DE19951143A1 Process for heating ceramics, glass, metals and polymers or composites comprises combining laser and microwave heating in a suitable device |
| 04/25/2001 | CN1065004C Process for producing grain orientation electrical sheet excellent in glass coating and magnetic properties |
| 04/24/2001 | US6222152 Electric heating treatment method, electric heating treatment apparatus, and electrode for electric heating treatment apparatus |
| 04/24/2001 | US6222148 Method for producing a multilayer thin-walled bellows of stainless steel |
| 04/24/2001 | US6221184 Subjecting steel to cooling after complete solidification |
| 04/19/2001 | WO2001027548A1 Pusher furnace rails with plate-shaped sliding supports and sliding shoes |
| 04/19/2001 | WO2001027340A1 Method for making a cold rolled steel strip for deep-drawing |
| 04/19/2001 | US20010000281 Method and system for cooling strip material |
| 04/19/2001 | DE19950264A1 Production of constant velocity joint for automobiles, involves rolling or forging an alloy |
| 04/19/2001 | DE19950263A1 High strength steel shaft manufacturing method e.g. for automobile propeller shaft |
| 04/18/2001 | CN1291658A Method and equipment for making thin wire |
| 04/17/2001 | US6218642 Laser hardened steel cutting rule |
| 04/17/2001 | US6217679 Hot-rolling chromium-containing steel slab, coiling strip formed at specified temperature, annealing strip in reducing atmosphere with specified hydrogen concentration and dew point, pickling in solution of nitric and hydrochloric acids |
| 04/17/2001 | US6217677 Locally annealing sharp radii in precision formed housings using magnetic heating process |
| 04/17/2001 | US6217676 Steel having microstructure of substantially single phase martensite in as-quenched or as-normalized condition |
| 04/17/2001 | US6217672 Annealing crystalline or nanocrystalline magnetic alloy at elevated temperature under application of dynamic magnetic field to produce easy-planar texture in said alloy |
| 04/17/2001 | US6217317 Combination conduction/convection furnace |
| 04/17/2001 | US6216940 Pipe forming roll apparatus and method |
| 04/17/2001 | US6216710 Method and apparatus for removing quench oil from a permeable metal part |
| 04/17/2001 | US6216485 Device for cooling extruded profiles |
| 04/17/2001 | US6216362 Method and apparatus for control of the cooling rate of cast steel railway wheels |
| 04/17/2001 | US6216358 Gas-quenching cell |
| 04/12/2001 | WO2001025499A1 Steel material, its use and its manufacture |
| 04/12/2001 | DE19947719A1 Vehicle chassis or chassis component is made of a metallic material that hardens in specified temperature region |
| 04/12/2001 | DE19947381A1 Apparatus for heat treating workpieces has a regulating device containing a vacuum measuring tube operating according to the Pirani principle for determining the hydrogen content in the furnace atmosphere |
| 04/12/2001 | DE19946998A1 Heat treating homogenized cooled cast light metal slugs or rod, comprises reheating, and subjecting to passive temperature compensation to lead to specified temperature uniformity |
| 04/11/2001 | EP1091010A1 Low-alloy heat-resistant steel, process for producing the same, and turbine rotor |
| 04/11/2001 | EP1090149A1 Composition for removing oxides in alloys of precious metals or similar |
| 04/11/2001 | CN1064411C Bell tempering furnace |
| 04/10/2001 | US6214285 Process for thermal treatment of a plastically moldable workpiece and device for such a thermal treatment |
| 04/10/2001 | US6214136 Light-alloy casting heat treatment method |
| 04/10/2001 | US6213884 Case hardened self-drilling, self-tapping, self-piercing fasteners and process for making the same |
| 04/10/2001 | US6212891 Process components, containers, and pipes suitable for containing and transporting cryogenic temperature fluids |
| 04/10/2001 | CA2183136C Argon employing heat treating process |
| 04/05/2001 | WO2001023624A1 Sheet steel and method for producing sheet steel |
| 04/05/2001 | DE19947564A1 Heating furnace chamber of industrial furnace comprises interrupting fuel supply to at least one burner, depending on operational state, and maintaining air supply |
| 04/04/2001 | EP1088902A1 Process for manufacturing aging-resistant aluminium killed steel strip |
| 04/04/2001 | EP1088901A1 Process for the thermal treatment of metallic workpieces |
| 04/04/2001 | EP1088738A2 Rack bar and manufacturing method thereof |
| 04/04/2001 | CN1290307A Carrier substrate |
| 04/03/2001 | US6210806 Martensitic stainless steel having oxide scale layers |
| 04/03/2001 | US6210500 Disposing work piece in fixture between opposing porous support walls; immersing fixture and work piece in bath of liquid heating medium; removing fixture and work piece from heating bath and immersing in bath of cooling medium |
| 04/03/2001 | US6210499 Method of bright annealing metals having a high affinity to oxygen |
| 03/29/2001 | WO2000063447A3 Method and device for hardening surfaces of a crankshaft or camshaft |
| 03/29/2001 | DE19946327A1 Heat treatment process comprises cooling the steel at direct or simple hardnesses to a specified temperature above the martensitic starting temperature of the edge, heating to a specified temperature and cooling to room temperature |
| 03/29/2001 | DE19937938A1 Worked camshaft; has cam made of steel material with ledeburite joint in edge zone of its running surface |
| 03/28/2001 | EP1087030A2 Method of producing tool steel and tool |
| 03/28/2001 | EP0732418B1 Highly corrosion-resistant martensitic stainless steel with excellent weldability and process for producing the same |
| 03/27/2001 | US6206983 Medium carbon steels and low alloy steels with enhanced machinability |
| 03/22/2001 | WO2001020053A1 Method for heat treatment of metallic slugs |
| 03/21/2001 | CN1063364C Method for producing a vehicolar endless track link |
| 03/20/2001 | US6203634 Involves heating a through hardening bearing steel component to the austenitization and bainite temperatures and holding there until transformations occur, rapid quenching to the martensite starting point, cooling, & short-cycle tempering |
| 03/20/2001 | US6203633 Laser peening at elevated temperatures |
| 03/15/2001 | WO2001018273A1 Rolling bearing |
| 03/15/2001 | DE10015832A1 Finely atomized liquid distribution process, especially for water spray cooling of a hot continuously cast metal strand, uses a single turbulent flow line for supplying a liquid and gas mixture to several nozzles |
| 03/15/2001 | DE10012974C1 Production of a hollow profile used in the automobile industry comprises a cold forming a hollow profile green body, heating to a temperature above the austenite temperature |
| 03/14/2001 | EP1082468A1 A method of hydroforming a blank |
| 03/13/2001 | US6200528 Cobalt free high speed steels |
| 03/13/2001 | US6200395 Free-machining steels containing tin antimony and/or arsenic |
| 03/13/2001 | US6199618 Method of producing castings |
| 03/13/2001 | CA2173587C Non-oxidizing heating method and apparatus therefor |
| 03/08/2001 | WO2001016390A1 Law material for bearing parts |
| 03/08/2001 | WO2001016387A1 Cu-FREE CAST ALUMINUM ALLOY AND METHOD OF HEAT TREATMENT FOR PRODUCING THE SAME |
| 03/08/2001 | WO2000040764A3 Ultra-high strength ausaged steels with excellent cryogenic temperature toughness |
| 03/08/2001 | DE19942386A1 Process for treating the edge layer of surfaces using an electron beam comprises directing the beam onto the surface of the workpiece and deviating by two functions in such a way that is follows a prescribed path |
| 03/07/2001 | EP1081245A1 Heat resistant Cr-Mo alloy steel |
| 03/07/2001 | EP1081237A2 Process for manufacturing a tubular profile resistant to bending and flexible in torsion |
| 03/07/2001 | CN2422605Y Box-type low and medium temp. tempering furnace |
| 03/07/2001 | CN1286729A Continuous heat treatment furnace and atmosphere control method and cooling method in continuous heat treatment furnace |
| 03/06/2001 | US6196957 Insulating roll |
| 03/02/2001 | CA2281295A1 Pipe forming roll apparatus and method |
| 03/01/2001 | WO2001014603A1 Annealing plant |
| 03/01/2001 | WO2001014600A1 Semifinished and finished products made of austenitic special steel and method for the production thereof |
| 03/01/2001 | DE19939123A1 Treating the edge layer of components using an energy beam, preferably an electron beam, comprises simultaneously producing parallel running melt paths |
| 02/28/2001 | EP1078994A2 Process and device for manufacturing fine wire |
| 02/28/2001 | EP1078106A1 Fluidized-bed treatment process and apparatus |
| 02/28/2001 | CN2421313Y Laser surface phase change hardened railway crossing tongue |
| 02/28/2001 | CN1062606C Medium freguency quenching heat treatment technology for edge plate of shovel loader and output device of medium frequency quenching |
| 02/27/2001 | US6193820 Method for the thermal treatment of bushings, particularly for tracked vehicles and the like |
| 02/27/2001 | CA2316669A1 Method and apparatus for producing fine wire |
| 02/22/2001 | WO2001012864A1 Method of producing cold rolled steel sheet |
| 02/22/2001 | DE19939399A1 Annealing device for annealing metallic billets containing aluminum has contact elements made of electrically conducting material electrically connected to a voltage source |
| 02/22/2001 | DE10035420A1 Verfahren und Vorrichtung zum Abkühlen von geglühten Coils in einem Haubenofen Method and apparatus for cooling coils annealed in a kiln hood |
| 02/21/2001 | EP1076726A1 Method for carburizing or carbonitriding metal parts |
| 02/21/2001 | EP1076725A1 Method and apparatus for straightening turbine casings |
| 02/21/2001 | CN1062316C Hearth roll with superior indurance capacity |
| 02/20/2001 | US6190472 Method of soft annealing high carbon steel |
| 02/20/2001 | US6190164 Continuous heat treating furnace and atmosphere control method and cooling method in continuous heat treating furnace |
| 02/20/2001 | CA2094081C Process for making clad sheet having a layer of abrasion resistant tool steel and clad sheet obtained with such process |
| 02/15/2001 | WO2001011252A1 Rolling bearing |
| 02/15/2001 | WO2001011096A1 Improved bainitic steel |