| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 01/12/2005 | CN2670419Y Laser reinforced points frog on railway |
| 01/12/2005 | CN2670370Y Inductive heating and spraying quenching device |
| 01/12/2005 | CN1563748A Tech for preparing drum of concrete transfer pump |
| 01/12/2005 | CN1563465A Technique for producing conveying pipe and convering cylinder |
| 01/12/2005 | CN1563438A Spheroidal annealing technique for low alloy steel in low carbon |
| 01/12/2005 | CN1563437A Method of bainite hardening steel in use for plastic die |
| 01/12/2005 | CN1563436A Process unit of laser treatment in use for inner inner wall of tubular workpieces |
| 01/12/2005 | CN1184857C System for induction heat treatment of complex-shaped workpieces and method of heating treamtent of same |
| 01/12/2005 | CN1184341C Low-carbon steel sheet for mask of tension type cathode ray tube with bridge and mask and cathode ray tube |
| 01/12/2005 | CN1184025C Cooling method for high temp objects and cooling appts. thereof |
| 01/11/2005 | US6841122 Hot working die steel excelling in molten corrosion resistance and strength at elevated temperature and member for high temperature use formed of the hot working die steel |
| 01/11/2005 | US6840765 Multi-layered heat treatment furnace, heat treatment unit, and method of heat treatment |
| 01/11/2005 | CA2154090C Method and apparatus for heat-treating profiled rolling stock |
| 01/06/2005 | WO2005002282A1 Method and device for thin plate article induction heating, and thin plate article |
| 01/06/2005 | US20050000597 Applying a pressurized quenching fluid |
| 01/06/2005 | CA2500354A1 Induction heating method of article made of thin sheet, apparatus thereof and article made of thin sheet |
| 01/05/2005 | EP1493026A2 Device and method for controlling the composition of a gaseous atmosphere |
| 01/05/2005 | EP1419281B1 Method for increasing the dynamic stability under load of a toothed structural component |
| 01/05/2005 | EP1392873A4 Method of producing stainless steels having improved corrosion resistance |
| 01/05/2005 | CN1561399A Method and apparatus for thermal treatment of rails |
| 01/05/2005 | CN1183267C Non-austempered spheroidal graphite cast iron |
| 01/05/2005 | CN1183264C Cast aluminium alloy and method of heat treatment for producing same |
| 01/04/2005 | US6837948 Process of production of compressor shoe |
| 01/04/2005 | US6837946 Plastic deformation before heat treatment; steel containing carbon, silicon, manganese, phosphorus, sulfur, chromium, nickel, molybdenum, copper |
| 12/30/2004 | US20040261923 Clean atmosphere heat treat for coated turbine components |
| 12/30/2004 | US20040261920 Tensile strength is effectively increased by press forming and heat treatment while maintaining excellent deep drawability in press forming; for molded products such as building members, mechanical structural parts, automobile structural parts |
| 12/30/2004 | US20040261918 Billet for cold forging, method of manufacturing billet for cold forging, method of continuously cold-forging billet, method of cold-forging |
| 12/29/2004 | WO2004113581A1 Steel product excellent in characteristics of resistance to fatigue crack extension and method for production thereof |
| 12/29/2004 | WO2004059017A3 Device and method for treating an internal wall of a recess that has been machined in a workpiece |
| 12/29/2004 | WO2004055221A3 Method and device for cooling cast metallic parts |
| 12/29/2004 | WO2003106719A3 Apparatus and method for thermomechanically forming an aluminide part of a workpiece |
| 12/29/2004 | EP1491643A2 Heat treatment for workpieces |
| 12/29/2004 | EP1491642A1 Hot gas quenching devices, and hot gas heat treating system |
| 12/29/2004 | EP1491230A2 A method of making a metallic thin wire and a medical tool into which the metallic thin wire is incorporated |
| 12/29/2004 | EP1491073A2 Improvements to heating inductors, in particular of metal strips |
| 12/29/2004 | EP1490524A2 Method and device for convective heat transfer between a heat transfer medium and the surface of a workpiece |
| 12/29/2004 | EP1490020A1 Two-phase cosmetic or dermatological preparations |
| 12/29/2004 | EP1458896A4 High strength cold rolled steel sheet with superior formability and weldability, and manufacturing method therefor |
| 12/29/2004 | EP1228256B1 Method for improving the mechanical properties, especially the hardness, of journal crosses for use in articulated shafts |
| 12/29/2004 | CN2666925Y Multi-medium steel ball automatic hardening machine |
| 12/29/2004 | CN1557607A Cold stamping forming process of biopsy pliers head |
| 12/23/2004 | WO2004111293A1 Nitriding method and device |
| 12/23/2004 | WO2004111291A1 Steel for hydrogen gas environment, structural hardware member and method for producing same |
| 12/23/2004 | WO2004111279A2 Method and installation for the production of hot-rolled strip having a dual-phase structure |
| 12/23/2004 | WO2004111278A1 Device for induction hardening |
| 12/23/2004 | WO2004110662A1 Controllable cooling method for thick steel plate, thick steel plate manufactured by the controllable cooling method, and cooling device for the thick steel plate |
| 12/23/2004 | WO2004110661A1 Device and method for controllably cooling thick steel plate |
| 12/23/2004 | US20040256029 Rolling element and method of producing the same |
| 12/23/2004 | US20040255635 Billet for cold forging, method of manufacturing billet for cold forging, method of continuously cold-forging billet, method of cold-forging |
| 12/22/2004 | EP1489318A1 Rolling bearing for belt type non-stage transmission |
| 12/22/2004 | EP1488181A1 Installation for the heat-treatment of parts |
| 12/22/2004 | EP1488014A2 Method and device for convective heat transfer between a heat transfer medium and the front face of a wound metal strip in the form of a coil |
| 12/22/2004 | EP1232349B1 Pistons for internal combustion engines |
| 12/22/2004 | CN1556866A Process for producing oil tempered wire |
| 12/22/2004 | CN1556733A Method and device for cooling steel sheet |
| 12/22/2004 | CN1556229A Multimedia steel ball automatic quencing machine |
| 12/22/2004 | CN1556228A Controlled cooling equipment of immersion and spray quenching combined quench-hardening |
| 12/22/2004 | CN1180918C Method for making and repairing wing surface of integral propeller rotator |
| 12/21/2004 | US6833107 Heat-treating furnace with magnetic field and heat treatment method using same |
| 12/16/2004 | WO2004109153A1 Pin for chain and method for manufacture thereof |
| 12/16/2004 | WO2004108972A1 Method for the case hardening of a unitary workpiece |
| 12/16/2004 | WO2004108970A2 Nano-precipitation strengthened ultra-high strength corrosion resistant structural steels |
| 12/16/2004 | US20040253561 Method and a skid member for reducing temperature difference in a heating subject and a skid apparatus using them |
| 12/16/2004 | US20040250931 Eglin steel - a low alloy high strength composition |
| 12/16/2004 | CA2528165A1 Nano-precipitation strengthened ultra-high strength corrosion resistant structural steels |
| 12/15/2004 | EP1486572A1 Apparatus for induction hardening |
| 12/15/2004 | EP1485509A1 Method for cooling metal strips or plates and cooling device |
| 12/15/2004 | EP1485207A1 Device for homogeneous impingement of a planar surface of a tool with a heated gas |
| 12/15/2004 | EP1060276B1 Device for hardening cylindrical bearing points of a shaft |
| 12/15/2004 | CN2663447Y Sharpening and strengthening apparatus for fibre striking and carding element |
| 12/15/2004 | CN2663430Y Quenching manipulator for automotive axle housing tube |
| 12/15/2004 | CN2663429Y Pressure gas quenching experimental device for metals and alloys |
| 12/15/2004 | CN1555421A Device for quenching and tempering long-length rolling stock |
| 12/15/2004 | CN1554935A High frequency preheating treatment technology for high temperature alloy creep/fatique test |
| 12/15/2004 | CN1554780A Tempering process for non quenched and tempered steel engine crank shaft |
| 12/15/2004 | CN1554779A Judging metod for tempering temperature after non modified steel crank shaft medium frequency quenching |
| 12/15/2004 | CN1180119C Cementation process and apparatus |
| 12/15/2004 | CN1180097C Hardening method and device for steel rail |
| 12/14/2004 | US6830634 Heat treatment in channel with transverse projection for heat contact |
| 12/09/2004 | WO2004106574A1 Steel bar for steering rack, method for producing the same, and steering rack using the same |
| 12/09/2004 | WO2004106573A1 Method for hot forming and hot formed member |
| 12/09/2004 | US20040248657 Constant velocity universal joint and method of manufacturing the same |
| 12/09/2004 | US20040247216 Rolling bearing, cam-follower with roller, and cam |
| 12/09/2004 | US20040244886 Method and device for cooling steel sheet |
| 12/09/2004 | US20040244885 Steel sheet for vitreous enameling and method for producing the same |
| 12/09/2004 | US20040244883 Method for producing oil temper wires |
| 12/09/2004 | DE10325986B3 Verfahren zum Randzonenhärten eines einteiligen Werkstücks A method of curing a one-piece rim workpiece |
| 12/09/2004 | DE10323746A1 Metallic component repair method for car body, involves defining part to be repaired with separation area which has lower hardness than construction component |
| 12/09/2004 | DE10323737A1 Quenching steel shaft after heat treatment comprises immersing steel shaft in quenching bath with quenching medium, and circulating quenching medium around steel shaft at specified flow speed |
| 12/09/2004 | DE10321414A1 Verfahren zur Wärmebehandlung von metallischen Werkstücken in Kammeröfen A method of heat treatment of metal workpieces in chamber |
| 12/09/2004 | CA2527119A1 Steel bar for steering rack, method for producing the same, and steering rack using the same |
| 12/08/2004 | EP1484521A1 Constant velocity universal joint and method of manufacturing the same |
| 12/08/2004 | EP1484517A2 Rolling bearing, cam follower with roller, and cam |
| 12/08/2004 | EP1483418A1 Pre-loading of components during laser peenforming |
| 12/08/2004 | CN1552920A Method and apparatus for ultra-low temperature refrigerating treatment and heating treatment continuous treatment |
| 12/08/2004 | CN1179605C High efficiency induction melting system and method |
| 12/08/2004 | CN1179056C Method for preheating metal strip in galvanizing and furnace therefor |
| 12/08/2004 | CN1178717C Method and apparatus for containing and suppressing explosive detonations |
| 12/07/2004 | US6828285 Oil composition for heat treatment of a gear and gear treated by using the oil composition |
| 12/07/2004 | US6827797 Process for making triple-phase nano-composite steels |