| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 12/12/2000 | US6160248 Device for electro-inductive hardening of bearing surfaces and transition radii in crankshafts |
| 12/12/2000 | US6159315 Stress relieving of an age hardenable aluminum alloy product |
| 12/12/2000 | US6159312 Heating a steel slab; reducing steel slab to form steel plate by hot rolling; quenching steel plate |
| 12/12/2000 | US6159307 Heating, holding and cooling metal objects, exposing to an inert or oxidizing protective-gas during holding to form thin oxide layer to prevent non-ferrous metal objects from adhering together; reducing oxide layer during cooling |
| 12/12/2000 | US6159237 Implantable vascular and endoluminal stents |
| 12/07/2000 | WO2000073527A1 Spray-deposited steel, method for the production of the same and a composite substance |
| 12/07/2000 | WO2000073517A1 Process for the improvement of the magnetic characteristics in grain oriented electrical silicon steel sheets by laser treatment |
| 12/07/2000 | WO2000044321A3 Expandable element delivery system |
| 12/07/2000 | WO2000036354A9 Combination conduction/convection furnace |
| 12/07/2000 | DE19925535A1 Verstellverfahren für zwei über einem Metallband angeordnete Abschirmelemente und hiermit korrespondierende Verstellvorrichtung A method of adjusting a pair of spaced over a metal tape shield and hereby corresponding adjustment |
| 12/07/2000 | DE10023488A1 Verfahren zur Herstellung von geschweißten Stahlrohren hoher Festigkeit, Zähigkeits- und Verformungseigenschaften A process for the production of high strength welded steel tubes, toughness and deformation properties |
| 12/06/2000 | EP1057897A2 Apparatus and process for heat treating metallic material |
| 12/06/2000 | CN1059239C Improvements in and relating to cartide-free bainitic steels and method of producing such steels |
| 11/30/2000 | WO2000071771A1 Free-machining steels containing tin, antimony, and/or arsenic |
| 11/30/2000 | WO2000071770A1 Medium carbon steels and low alloy steels with enhanced machinability |
| 11/30/2000 | WO2000071759A2 Methods of forming steel |
| 11/30/2000 | WO2000071270A1 Method and apparatus for in-line heat treatment of hot rolled stock |
| 11/30/2000 | DE19942811C1 Apparatus for heat treating a steel compression spring has an inductor for inductively heating the spring |
| 11/30/2000 | DE19924523A1 Wear resistant calibrating die for producing plastic profiles, is made from aluminum bronze |
| 11/30/2000 | DE19924515A1 Sprühkompaktierter Stahl, Verfahren zu seiner Herstellung und Verbundwerkstoff Spray-formed steel, process for its preparation and composite |
| 11/30/2000 | DE19923980A1 Verfahren und Vorrichtung zum Überwachen und Regeln einer Gaszusammensetzung Method and apparatus for monitoring and controlling a gas composition |
| 11/30/2000 | DE10018132A1 Carbon steel strengthening process, especially for increasing fatigue strength, comprises working a bainitic carbon steel of specified hardness under tension to produce a specified permanent deformation |
| 11/30/2000 | CA2373826A1 Medium carbon steels and low alloy steels with enhanced machinability |
| 11/30/2000 | CA2373758A1 Free-machining steels containing tin, antimony, and/or arsenic |
| 11/29/2000 | EP1055985A2 Method and device for monitoring and controlling the composition of a gas |
| 11/29/2000 | EP1055739A2 Method of manufacturing laminated ring and molten salt composition for use in such method |
| 11/29/2000 | EP1055738A2 Method of manufacturing laminated ring and heat treatment apparatus for use in such method |
| 11/29/2000 | EP1055737A1 Device for rotating cylindrical rods during a quenching operation |
| 11/29/2000 | EP1055007A1 Carrier substrate |
| 11/29/2000 | EP1040208A4 Tin-bearing free-machining steel |
| 11/29/2000 | CN2408644Y Three loop high frequency pneumatic power switching device |
| 11/29/2000 | CN2408643Y High frequency contactor type power switching device |
| 11/28/2000 | US6153026 Quick cooling while confined |
| 11/28/2000 | US6153024 Deformation; heat treatment; for elastomers |
| 11/28/2000 | US6153023 Compressive stresses in exterior surface |
| 11/28/2000 | US6153019 Process for producing a grain-orientated electrical steel sheet |
| 11/23/2000 | DE19909478A1 Vorrichtung zum Härten von Teilen Apparatus for curing of parts |
| 11/22/2000 | EP1053292A1 Fuel gas mixture, in particular for cutting torch |
| 11/22/2000 | EP0815268B1 Primary cooling method in continuously annealing steel strip |
| 11/22/2000 | CN2407314Y Well annealing furnace |
| 11/22/2000 | CN1058758C Surface carburization method for forming austenite having high strength in rustless steel |
| 11/21/2000 | US6149743 Method of complete bainite hardening |
| 11/21/2000 | US6149734 Carburization hardening of steels, quenching |
| 11/21/2000 | CA2062836C Method of annealing/magnetic annealing amorphous metal in a fluidized bed and apparatus therefor |
| 11/16/2000 | WO2000068626A1 Device for loading parts to be heat treated |
| 11/16/2000 | WO2000068450A1 Steel product for oil well having high strength and being excellent in resistance to sulfide stress cracking |
| 11/16/2000 | WO2000068443A2 Method for producing welded steel pipes with a high degree of strength, ductility and deformability |
| 11/15/2000 | EP1052304A1 Martensitic corrosion resistant chromium steel |
| 11/15/2000 | EP1052296A2 Armour plate and process for its manufacture |
| 11/15/2000 | EP1052295A2 Method for manufacturing of construction parts in automobile construction |
| 11/15/2000 | EP1051530A1 Advanced case carburizing secondary hardening steels |
| 11/15/2000 | CN1058529C Method for heating cold steel ingot with gland |
| 11/15/2000 | CN1058528C Equipment for manufacturing stainless steel strip |
| 11/15/2000 | CN1058527C Cypsum deoxygenating agent |
| 11/14/2000 | US6146472 Method of making case-carburized steel components with improved core toughness |
| 11/09/2000 | DE19946889C1 Aging resistant aluminum-killed steel strip, for manufacturing cold formed components e.g. bodywork parts, is produced by subjecting rolled strip to continuous annealing, hot coiling, cooling to room temperature and skin pass rolling |
| 11/09/2000 | DE19935884C1 Induction hardening process, e.g. for a thin-walled transmission 'tripod' of a front wheel drive vehicle, comprises supplying liquid between hardening areas and an inductor and onto regions not to be heated |
| 11/09/2000 | DE19921286A1 Wärmebehandlungsverfahren zur Herstellung randschichtgehärteter Lang- nd Flachprodukte aus unlegierten oder niedriglegierten Stählen Heat treatment process for the production boundary layer hardened long nd flat products of non-alloy or low-alloy steels |
| 11/09/2000 | DE19920297A1 Verfahren zur Wärmebehandlung metallischer Werkstücke A method of heat treatment of metal workpieces |
| 11/08/2000 | EP1050592A1 Process of heat treating metal workpieces |
| 11/08/2000 | EP1050591A2 Thermal treatment process for manufacturing surface hardened unalloyed or low alloyed, elongated or flat steel products |
| 11/08/2000 | CN1058298C Salt bath correction agent |
| 11/07/2000 | US6143100 Controlled batch annealing a low-carbon, cold-rolled sheet in a two stages by heating, holding and cooling at specific temperatures; hot rolling, coiling; excellent formability, bake hardenability, dent resistance, aging resistant; autos |
| 11/07/2000 | US6143098 Process and plant for thermal treatment of metals in protecting atmosphere |
| 11/07/2000 | US6141974 Cryogenic and heat process for treating sintered carbide metals to increase service life |
| 11/07/2000 | CA2181058C Pearlitic steel rail having excellent wear resistance and method of producing the same |
| 11/02/2000 | WO2000065119A1 High tensile hot-dip zinc-coated steel plate excellent in ductility and method for production thereof |
| 11/02/2000 | WO2000065105A1 Method for strengthening of rolling element bearings by thermal-mechanical net shape finish forming technique |
| 11/02/2000 | WO2000065104A1 Method for hardening ring-shaped grooves by means of laser beams |
| 11/02/2000 | EP1048742A2 Device for cooling materials |
| 11/02/2000 | EP1047799A1 Ultra-high strength steels with excellent cryogenic temperature toughness |
| 11/02/2000 | EP1047798A1 Ultra-high strength ausaged steels with excellent cryogenic temperature toughness |
| 11/02/2000 | EP1047504A1 Slit nozzle for spraying a continuous casting product with a cooling liquid |
| 11/02/2000 | DE19918808A1 Verfahren zum Härten von Ringnuten mit Laserstrahlen A method for hardening the annular grooves with laser beams |
| 10/31/2000 | US6140625 Device for rotating and simultaneous hardening by electric induction |
| 10/31/2000 | US6139656 Electrochemical hardness modification of non-allotropic metal surfaces |
| 10/31/2000 | US6139655 Relates to an impact beam for a door of an automotive vehicle. |
| 10/31/2000 | US6139462 Differential with laser hardened case |
| 10/26/2000 | WO2000063568A2 Method and device for completing outer joint elements that are formed without cutting |
| 10/26/2000 | WO2000063455A1 Engineering steel and rolling bearing component |
| 10/26/2000 | WO2000063450A1 Rolling bearing steel having a surface with a lower bainitic structure and a method for the production thereof |
| 10/26/2000 | WO2000063448A1 Quenching apparatus and method for hardening steel parts |
| 10/26/2000 | WO2000063447A2 Method and device for hardening surfaces of a crankshaft or camshaft |
| 10/26/2000 | DE19938009C1 Device for heat treating metallic workpieces comprises a heat-resistant lined furnace chamber that is divided into a region of reduced cross-section leading into first treatment zone |
| 10/25/2000 | EP1045737A1 Process and device for producing a high-strength steel strip |
| 10/25/2000 | CN1057798C Laser surface treating technology for cone bit leg axial journal |
| 10/24/2000 | US6136109 Forming a pipe from a steel comprising specific weight percent of carbon, silicon, manganese, copper, nickel, nitrogen and high percentage of chromium, balance iron, austenizing, quenching, heat treating, cooling, annealing |
| 10/24/2000 | US6136101 An iron--carbon--silicon based alloy having an eutectic crystal; a semi-molten casting material having liquid and solid phases coexisting |
| 10/19/2000 | DE19919611A1 Surface remelting process, especially for electron beam surface hardening of cast iron camshaft cam surfaces, avoids secondary graphite precipitation caused by melt track cooling to the critical temperature and subsequent reheating |
| 10/17/2000 | USRE36912 Chamber, sealable door, ignition means, and a plurality of plastic film containers filled with water and suspended in a spaced array within the chamber above the explosive to be detonated |
| 10/17/2000 | US6132534 For heated small parts, e.g., nuts, bolts, discharged from a continuous furnace comprising a cantilievered supported rotary quenching drum, a rotatable, bearing-free, protected joint connecting the drum to the transfer chute; durability |
| 10/12/2000 | WO2000060129A1 Method for induction-surface hardening hollow work pieces |
| 10/12/2000 | DE19934534C1 Bearing face hardening process, especially for minimal distortion crankshaft or camshaft induction hardening, uses a previous bearing face distortion value to regulate a support device during subsequent bearing face hardening |
| 10/12/2000 | DE19913813A1 Concentrated radiation heater based on ellipsoidal reflector sections, is designed to release bundle of rays diverging at controlled angle, towards following objective lens |
| 10/12/2000 | DE10012350A1 Ball or roller bearing includes a fixed race made of steel with high attrition and flaking resistance containing defined amounts of carbon, chromium and nitrogen |
| 10/11/2000 | EP1042524A1 Case hardening structural steel, method for obtaining same and parts formed with same |
| 10/11/2000 | EP1042517A1 Loading device for supporting parts to be thermally treated in a furnace |
| 10/11/2000 | CN1269841A Method and device for thermal treatment of parts |
| 10/11/2000 | CN1269840A Pitting resistant duplex stainless steel alloy with improved mechinability |
| 10/10/2000 | US6129795 Metallurgical method for processing nickel- and iron-based superalloys |