| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 10/27/2004 | EP0996759B1 Amorphous magnetostrictive alloy with low cobalt content and method for annealing same |
| 10/27/2004 | CN2651260Y Integral quenching cold water jetter of sucker rod |
| 10/27/2004 | CN2651259Y Integral quenching cold water jetter of sucker rod |
| 10/27/2004 | CN1541279A Method for strengthening steel channel member |
| 10/27/2004 | CN1540002A Induction heating technique for internal spline of tubular part |
| 10/27/2004 | CN1540001A Isothermal spheroidizing technique for H13 steel |
| 10/27/2004 | CN1173066C 12 Cr alloy steel for turbin rotor, its manufacturing method and turbin rotor |
| 10/27/2004 | CN1173062C 滚动轴承部件 Rolling Parts |
| 10/27/2004 | CN1173049C Technology for making cutting tool with high-speed steel and low-carbon steel |
| 10/27/2004 | CN1173048C Method and installation for producing dual-phase steel |
| 10/27/2004 | CN1173047C Quenching of hot metal object |
| 10/26/2004 | US6808571 Heat resistant carburized rolling bearing component and manufacturing method thereof |
| 10/26/2004 | US6808569 Cable for anchoring a tire carcass |
| 10/26/2004 | US6808103 Method for continuous high-speed welding of double-ply metal tubes and welding furnace for performing the same |
| 10/21/2004 | US20040206426 Quenched and tempered steel wire with excellent cold forging properties |
| 10/21/2004 | US20040206421 Method for increasing the dynamic stability under load of a toothed structural component |
| 10/21/2004 | DE10332722B3 Use of a steel alloy containing alloying additions of manganese and silicon as a material for the production of spring plates for vehicle shock absorbers |
| 10/21/2004 | DE10322928B3 Production of molded parts made from heat-treated sheet steel used in automobile construction comprises unwinding the sheet steel from a coil and feeding the sheet steel to a heating arrangement, and further treating |
| 10/20/2004 | CN1538785A Fire-proof plate |
| 10/20/2004 | CN1537956A Point rail having hardened layer on working surface and its point rail working surface laser hardening treatment technology |
| 10/20/2004 | CN1172560C Lateral magnetic inducting heater with varying width of magnetic path |
| 10/20/2004 | CN1171700C Method for laser compound treating surface of friction pair |
| 10/14/2004 | WO2004088606A1 Method of manufactureing deactivating elements for magnetic markers |
| 10/14/2004 | WO2004087968A2 Method for the thermomechanical treatment of steel |
| 10/14/2004 | WO2004087367A2 Method for producing helical springs or stabilisers |
| 10/14/2004 | WO2004058482A3 Method for increasing a fatigue strength of a metallic component, which is provided with at least one cavity, while subjecting it to a cyclic inner pressure load |
| 10/14/2004 | DE10314115A1 Verfahren zur Umformung einer Platine aus einem Vergütungsstahl und Vorrichtung zur Durchführung des Verfahrens A method for forming a circuit board made of a tempering steel, and apparatus for carrying out the method |
| 10/14/2004 | CA2519764A1 Method for producing helical springs or stabilisers |
| 10/13/2004 | EP1466990A1 Screw with a partially hardened point and process for making same |
| 10/13/2004 | EP1466023A1 Quenching oil compositions |
| 10/13/2004 | EP1355747B1 Method for altering the profile of a roller strip |
| 10/13/2004 | EP1141423B1 Method for treating with laser an objet consisting of a shape memory material |
| 10/13/2004 | CN2648371Y Air colding device for quenching medium |
| 10/13/2004 | CN1537175A Method for cooling work pieces especially shape-rolled products from rail steel |
| 10/13/2004 | CN1536236A Functional pointed screw with local hardening and its making method |
| 10/13/2004 | CN1536095A High-strength steel pipe pull-rod |
| 10/13/2004 | CN1170947C Method for manufacturing high strength bolt excellent in resistance to delayed fracture and relaxation |
| 10/12/2004 | US6802915 Manufacturing method of a pushing block for a CVT belt |
| 10/07/2004 | WO2004067783A3 Eglin steel - a low alloy high strength composition |
| 10/07/2004 | US20040197581 Surface hardened stainless steel with improved wear resistance and low static friction properties |
| 10/07/2004 | DE10311215A1 Production of a grain-orientated electric sheet or strip comprises using primary crystallization annealing and secondary crystallization annealing directly after each other after cold rolling to a final thickness |
| 10/06/2004 | EP1464712A1 Method for producing grain-oriented silicon steel plate with mirror surface |
| 10/06/2004 | EP1464711A1 Method and apparatus for hardening of annular workpieces |
| 10/06/2004 | CN2646154Y Rapid cooling installation for workpieces in the furnace of isothermal annealing heat treatment production line |
| 10/06/2004 | CN1535325A Metallic diffusion process and improved article produced thereby |
| 10/06/2004 | CN1534212A 滚动轴承 Rolling |
| 10/06/2004 | CN1534099A Method and system for fortifying trance and distribution controllable material surface laser fortificating |
| 10/06/2004 | CN1169973C Heat treating method for hot die steel made of chromium interalloy |
| 10/06/2004 | CN1169972C Heat treating process and inductor for key surface of hub |
| 10/05/2004 | US6800144 Hot forging the steel; machining and optionally piercing the forged product; carburizing and quenching and tempering the machined steel to attain an effective case depth of 0.4 to 0.9 mm |
| 09/30/2004 | WO2004082872A2 Method and apparatus for strengthening of powder metal gears by ausforming |
| 09/30/2004 | US20040190808 Rolling bearings |
| 09/30/2004 | US20040187974 Guiding through cooling stretch for transformation perlitic or ferritic/perlitic structure; stress relieving |
| 09/30/2004 | DE10312650B3 Heat treatment furnace used as a pressure sintering furnace comprises a housing, an insulating cage held by the furnace, a muffle arranged inside the cage, and a unit for introducing cooling gas from a gas supply container |
| 09/30/2004 | DE10312394A1 Process for heat treating a component made from a metal alloy comprises cooling a region of the component with a gas stream before quenching with a liquid medium |
| 09/30/2004 | DE10309465A1 Controlling and regulating the active potential of heat treating gases and protective gases e.g. in heat treating ovens comprises using values calculated from the cell voltage and temperature of an electrolyte measuring cell |
| 09/29/2004 | EP1462669A2 Rolling bearings |
| 09/29/2004 | EP1462529A1 Bell type furnace, especially for strip or coiled wire |
| 09/29/2004 | EP1462192A1 Method for forming a plate of heat treatable steel and device for carrying out thereof |
| 09/29/2004 | EP1461467A1 Triple-phase nano-composite steels |
| 09/29/2004 | EP1461466A1 Nano-compsite martensitic steels |
| 09/29/2004 | EP1182268B1 High strength, high toughness, seamless steel pipe for line pipe |
| 09/29/2004 | CN1168948C Continuous treater |
| 09/28/2004 | US6797408 Low-sulfur article having a platinum-aluminide protective layer, and its preparation |
| 09/28/2004 | US6797085 Improving thermal conductivity by expanding microstructure; heat induction of secondary recrystallization grain growth, lowering to cryogenic temperature and immediately bringing to ambient conditions |
| 09/28/2004 | US6797084 Method of manufacturing case hardened journal cross for use in a universal joint |
| 09/28/2004 | US6796869 Ceramic arc tube by annealing |
| 09/23/2004 | US20040183637 Induction heat treatment of complex-shaped workpieces |
| 09/23/2004 | US20040183239 Apparatus for softening a selected portion of a steel object by heating |
| 09/23/2004 | US20040182484 Tumbling small hot metal objects in upward flow of quenching gas distributed uniformly from a multiplicity of aperturesin a horizontal floor at uniform velocity and being subjected to deceleration to keep down the number of objects carried away by quenching gas |
| 09/23/2004 | DE10309386A1 Production of a cast iron workpiece with temper carbon-like (sic) graphite build up useful in internal combustion engine construction and ship building engines |
| 09/23/2004 | DE10259231B4 Verfahren und Vorrichtung zum Abkühlen von metallischen Gussteilen Method and apparatus for cooling of metallic cast parts |
| 09/22/2004 | EP1460144A2 A process for thermally treating an Fe-based cast product and the product obtained by the process |
| 09/22/2004 | EP1460143A2 A process for preparing an Fe-based thixocast material |
| 09/22/2004 | EP1460138A1 A process for preparing a thixocast semi-molten casting material |
| 09/22/2004 | EP1458896A1 High strength cold rolled steel sheet with superior formability and weldability, and manufacturing method therefor |
| 09/22/2004 | CN1530450A Rotary parts and manufacturing method thereof |
| 09/22/2004 | CN1167815C Hot-rolled stainless steel annealing process under protection of full hydrogen gas |
| 09/21/2004 | US6795016 Jig for heat treatment of work |
| 09/21/2004 | CA2139752C Method and apparatus for controlling heat transfer between a container and workpieces |
| 09/16/2004 | WO2004079022A1 Method of producing a cold-rolled band of dual-phase steel with a ferritic/martensitic structure and band thus obtained |
| 09/16/2004 | WO2004079021A1 Method of producing ultra-high-strength cold- and hot-rolled steel sheets and plate thus obtained |
| 09/16/2004 | US20040178043 Roller table roll, particularly for conveying furnace-heated metallic strip material |
| 09/16/2004 | US20040177906 Method for manufacturing articles using a semi-continuous flow of workpieces through metal working and annealing apparatus |
| 09/16/2004 | US20040177905 excellent in stretch-flangeability and spot-weldability; weight reduction of automobile; continuous annealing; suppression of transformation of austenite into ferrite |
| 09/16/2004 | CA2513065A1 Method of producing ultra-high-strength cold- and hot-rolled steel sheets and plate thus obtained |
| 09/15/2004 | EP1457576A1 Press molding and its high frequency quenching method and its high frequency quenching system |
| 09/15/2004 | EP1456431A1 Grain refinement of alloys using magnetic field processing |
| 09/15/2004 | EP1456422A1 Method for avoiding adhesions and scratches during recrystallization annealing of cold rolled strips |
| 09/15/2004 | EP1456421A1 Method and device for controlled straightening and cooling of a wide metal strip, especially a steel strip or sheet metal, running out of a hot rolled strip rolling mill |
| 09/15/2004 | EP1456420A1 Quenching oil compositions |
| 09/15/2004 | EP1268719B1 Hot rolling process for rolling aluminium and aluminium alloys sheets |
| 09/15/2004 | CN2641058Y Annealing protective cover for stainless steel |
| 09/15/2004 | CN2641057Y Working chamber for laser imkpact treatment |
| 09/15/2004 | CN1166806C Method and system for cooling strip material |
| 09/14/2004 | CA2185995C Method and apparatus for joining metal components |
| 09/10/2004 | WO2004076709A1 Iron-based parts and method for manufacture thereof |
| 09/10/2004 | WO2004076116A1 A steel member and a method of hard-facing thereof |
| 09/10/2004 | WO2004075968A1 Elongated intracorporal medical device |
| 09/10/2004 | WO2004075967A1 Elongated intracorporal medical device |