| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 11/17/1998 | US5837187 Heat treatment apparatus for solution annealing aluminum alloy components |
| 11/12/1998 | WO1998050594A1 Steel compositions and methods of processing for producing cold-formed and carburized components with fine-grained microstructures |
| 11/11/1998 | EP0876515A1 Drawing stock for reinforcing plastic or rubber articles |
| 11/11/1998 | EP0750683B1 Process for influencing the changes in size and shape of workpieces during hardening |
| 11/11/1998 | CN1198478A Steel structure unit used under hot or warm condition and production method thereof |
| 11/11/1998 | CN1040661C Vertical bright annealing furnace for continuous heat treatment of metal strips |
| 11/11/1998 | CN1040660C Method for making bainite steel rail with high strength and good performance of anti-rolling-endurance-failure |
| 11/10/1998 | US5835016 Multi-thread re-entrant marker with transverse anisotropy flux concentrators |
| 11/10/1998 | US5834094 Bearing having micropores and design method thereof |
| 11/10/1998 | US5833918 Heat treatment by plasma electron heating and solid/gas jet cooling |
| 11/10/1998 | US5833778 Apparatus and method for the manufacture of DR steel strip |
| 11/10/1998 | US5832848 Fluidized bed heat treatment furnace |
| 11/05/1998 | DE19741028C1 Apparatus for hardening inner contour of weapon barrel by laser radiation |
| 11/04/1998 | EP0875304A2 Method and cooling aggregate for cooling rolling stock at rolling-temperature, especially hot wide strip |
| 11/03/1998 | US5830535 Process for producing a ski edge |
| 11/03/1998 | US5830293 Shock cooling to form martensitic surface layer |
| 11/03/1998 | US5830285 Fine graphite uniform dispersion steel excellent in cold machinability, cuttability and hardenability, and production method for the same |
| 11/03/1998 | US5830095 Sprocket and manufacturing method thereof |
| 10/29/1998 | WO1998048061A1 Heat treatment of steel |
| 10/29/1998 | WO1998047648A2 Low-alloy cast iron tappet, apparatus, and process for its manufacturing |
| 10/29/1998 | WO1998023397A3 Device for cooling extruded profiles |
| 10/28/1998 | CN1197036A Process for heat treatment of iron-based metal parts in active atmosphere with high potential of carbon |
| 10/28/1998 | CA2235423A1 Thermal treatment device and procedure |
| 10/27/1998 | US5827588 Workpiece having a laser heat-treated surface formed by a small diameter bore extending in workpiece |
| 10/27/1998 | US5827379 Heating alloy steel slab, hot rolling, air cooling, quenching, tempering |
| 10/27/1998 | US5827378 Method of treatment of metallic workpieces |
| 10/27/1998 | US5827057 Vacuum furnace method and apparatus |
| 10/22/1998 | WO1998046943A1 Method and apparatus for containing and suppressing explosive detonations |
| 10/21/1998 | EP0872563A1 Method and device for heat treating |
| 10/21/1998 | EP0871786A1 A method and an apparatus for the treatment of components by a gas mixture |
| 10/21/1998 | EP0871553A1 Heat treatment for lost foam cast materials |
| 10/21/1998 | CN2294958Y Clamping apparatus of preventing thin-long workpiece from deforming resulted from quenching |
| 10/21/1998 | CN1196396A Salt bath correction agent |
| 10/21/1998 | CN1040343C Sheet steel excellent in flanging capability and process for producing same |
| 10/15/1998 | WO1998045487A1 Apparatus and method for cooling hot rolled steel rod |
| 10/14/1998 | EP0871004A1 Gas flow furnace |
| 10/14/1998 | CN1195713A New bonderizing process at normal temp. before laser-quenching |
| 10/14/1998 | CN1040232C Methd for heat treatment of rail |
| 10/13/1998 | US5820706 Process for manufacturing a forging |
| 10/13/1998 | US5820705 Spray quenching of metal with liquid coolant containing dissolved gas |
| 10/08/1998 | WO1998044168A1 Chromium-containing hot rolled steel strip and its production method |
| 10/08/1998 | WO1998043834A1 Method for improving the properties of railway wheels and railway wheel |
| 10/08/1998 | DE19724319C1 Influencing characteristics of chip flow from tool surfaces |
| 10/07/1998 | EP0869196A2 Cast cold tool and method for producing the same |
| 10/07/1998 | EP0869189A1 Process for gas quenching metallic workpieces |
| 10/07/1998 | EP0868245A1 Method for forming a cracking site for fracture separation of a component, in particular a connecting rod for internal combustion engines |
| 10/07/1998 | CN1040130C Apparatus for cooling of metallic belt |
| 10/06/1998 | US5816088 Surface treatment method for a steel workpiece using high speed shot peening |
| 10/01/1998 | WO1998042889A1 Polishing-finished stainless steel sheet having excellent stain removability, and production method thereof |
| 10/01/1998 | WO1998042885A1 Process for quenching heat treatable metal alloys |
| 10/01/1998 | WO1997026388A3 Laser induced surfaces |
| 10/01/1998 | CA2284926A1 Process for quenching heat treatable metal alloys |
| 09/30/1998 | EP0867524A1 Method for masking a portion of metal to be carburized or nitrided |
| 09/30/1998 | CN2293040Y 真空热处理装置 Vacuum heat treatment device |
| 09/30/1998 | CN2292805Y Internally heated multistation salt-bath isothermal quenching apparatus |
| 09/30/1998 | CN1194669A Widthwise uniform cooling system for steel strip in continuous steel strip heat treatment step |
| 09/29/1998 | US5814166 Process for heat treating and tempering surgical needles |
| 09/29/1998 | US5813265 Balanced electromagnetic peening |
| 09/24/1998 | WO1998041663A1 High-performance rolling bearings or rolling components |
| 09/24/1998 | WO1998041661A1 Steel band heat-treating apparatus by gas jet stream |
| 09/24/1998 | WO1998041356A1 Method and device for treating the surfaces of component bores |
| 09/24/1998 | DE19736514C1 Combined oxidation and heat treatment of ferrous metal parts |
| 09/23/1998 | EP0866145A2 Completely martensitic steel alloy |
| 09/23/1998 | EP0866141A1 Process for the generation of a low dew-point, oxygen-free protective atmosphere for the performance of thermal treatments |
| 09/23/1998 | EP0865507A1 Edge hardening of chain saw guide bars |
| 09/23/1998 | EP0763140A4 Method of increasing the yield strength of cold formed steel sections |
| 09/22/1998 | US5810950 Annealing a low carbon, austenitic steel sheet in nitrogen or nitrogen and hydrogen to reduce the thickness of the oxide surface layer and to precipitate aluminum nitride particles to effect easy peeling |
| 09/18/1998 | CA2232118A1 Process for the generation of a low dew-point oxygen-free protective atmosphere for the performance of thermal treatments |
| 09/17/1998 | WO1998040180A1 A steel and a heat treated tool thereof manufactured by an integrated powder metallurgical process and use of the steel for tools |
| 09/16/1998 | EP0864953A1 Monitoring installation for an atmosphere generating apparatus |
| 09/16/1998 | EP0864662A1 Casting material for thixocasting, method for preparing partially solidified casting material for thixocasting, thixo-casting method, iron-base cast, and method for heat-treating iron-base cast |
| 09/16/1998 | CN2291418Y High-pressure, high flow-rate vacuum air-cooled glowing furnace |
| 09/15/1998 | US5808233 Amorphous-crystalline thermocouple and methods of its manufacture |
| 09/15/1998 | US5807441 Decarburization, annealing |
| 09/11/1998 | WO1998039116A1 Progressive deep-drawing machine |
| 09/10/1998 | DE19756581A1 Method for heating and cooling of non-quenched and tempered steel |
| 09/09/1998 | EP0863029A2 High strength steel sway bars and method of making |
| 09/09/1998 | EP0862965A1 Gas shielding apparatus and gas shielding method |
| 09/09/1998 | EP0573641B1 Austenitic high manganese steelsheet having superior formability, strength and weldability, and manufacturing process therefor |
| 09/09/1998 | CN1192645A Pre-heating furnace for baked amorphous carbon bodies |
| 09/09/1998 | CN1192476A Method for heating and cooling non-quenched and tempered steel and apparatus for the same |
| 09/08/1998 | US5803993 Outer ring for high strength constant velocity joint and production process for same |
| 09/08/1998 | US5803991 High chromium content by diffusion; heat treatment in a plurality of heat cycles to achieve uniform chromium content in the thickness direction |
| 09/08/1998 | US5802905 Process and device for applying a temperature profile to metal blocks for extrusion |
| 09/03/1998 | WO1998038346A1 Method and installation for tempering metallic strips |
| 09/03/1998 | WO1998038344A1 Heating method and heating apparatus |
| 09/03/1998 | DE19706833A1 Producing cylinder running surfaces in piston machinery |
| 09/02/1998 | EP0861907A2 Process for producing a bearing component |
| 09/02/1998 | EP0776380A4 Surface treated iron bearing element |
| 09/02/1998 | CN1191899A Laser surface treating technology for rotary drill bit leg journel |
| 09/02/1998 | CN1039632C Method and apparatus for dry process fluxing |
| 09/01/1998 | US5800774 Heat treating furnace and method |
| 09/01/1998 | US5800641 Method of thermal or thermochemical treatment of precision steel components |
| 09/01/1998 | US5800637 Steel alloy of carbon, chromium, vanadium, molybdenum and iron |
| 09/01/1998 | US5799683 Poppet valve and method of manufacturing it |
| 09/01/1998 | US5799398 Method for precision gear finishing by controlled deformation |
| 08/27/1998 | WO1998037246A1 Fluidized bed process for removing organic materials from metallic articles such as aluminum scrap |
| 08/27/1998 | WO1998036838A1 Comminuting media comprising martensitic/austenitic steel containing retained work-transformable austenite |
| 08/26/1998 | EP0860512A2 Method/apparatus for making a treating gas for the thermal treatment of a metallic product |
| 08/26/1998 | EP0752012B1 Process for producing magnetic steel sheets with a glass coating |