| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 01/08/2003 | CN1098358C Ultra-high strength ausaged steels with excellent cryogenic temp. toughness |
| 01/08/2003 | CN1098121C Process for preparing blanketing gases or reaction gases for heat treatment of metals |
| 01/07/2003 | US6502473 Rack bar and manufacturing method thereof |
| 01/03/2003 | WO2003000939A1 Method and device for quenching steel in pressurized air |
| 01/02/2003 | US20030000946 Suspended induction coil and method for replacement of turns comprising same |
| 01/02/2003 | US20030000611 Method for continuous heat-treatment of metals under argon atmosphere |
| 01/02/2003 | US20030000609 Processes for producing articles with stress-free slit edges |
| 01/02/2003 | US20030000606 Providing a sheet metal blank from sheet steel; forming collared holes; indenting the blank to protrusion; heating the blank on a conveyor in a heat treatment station; hot forming the blank in a pressing tool to produce sheet metal product |
| 01/02/2003 | US20030000602 Integrally bladed rotor airfoil fabrication and repair techniques |
| 01/02/2003 | EP1270939A2 Process of production of compressor shoe |
| 01/02/2003 | EP1270749A1 Method for continuous heat-treatment of metals under argon atmosphere |
| 01/02/2003 | EP1270747A2 Spheroidal graphite cast iron with addition of boron |
| 01/02/2003 | EP1268865A1 Method and device for thermal treatment of steel wire |
| 01/02/2003 | EP1268864A1 Production of an embossing tool and use of the same |
| 01/02/2003 | EP1268719A1 Hot rolling process for rolling aluminium and aluminium alloys sheets |
| 01/02/2003 | DE10108926C1 Heat treatment process used for changing the properties of a metal object comprises irradiating metal object e.g. a steel spring in a predetermined surface section with electromagnetic radiation produced by an emitter |
| 01/01/2003 | CN1097642C Tool steel with good weldability, machinability and thermal treatment property and produced metallic mould made therefrom |
| 01/01/2003 | CN1097640C Steel material and prodcing method thereof |
| 01/01/2003 | CN1097636C Quenching method and eqipment for steel or cast iron parts surface |
| 12/31/2002 | US6500279 Novel steel containing iron, aluminum, molybdenum, nickel, niobium, chromium, silicon, phosphorous, sulfur, nitrogen and carbon; rust resistance; easy to weld; impact resistant |
| 12/27/2002 | WO2002103066A1 Roller table roll, particularly for conveying furnace-heated metallic strip material |
| 12/27/2002 | WO2002103065A2 Method for segmentation of digital images |
| 12/26/2002 | US20020195753 Method and apparatus for quenching metal workpieces |
| 12/26/2002 | US20020195439 Convection heating system for vacuum furnaces |
| 12/26/2002 | US20020195180 Carbon, silicon, manganese, copper, magnesium, sulfur, group iiib elements, boron and silicon at > 2.4% wt with an iron balance |
| 12/26/2002 | US20020195176 Integrally bladed rotor airfoil fabrication and repair techniques |
| 12/25/2002 | CN2527570Y Microplasma metal surface intensified treatment device |
| 12/25/2002 | CN1386977A Slipper for swashplate compressor, and method for mfg. same |
| 12/25/2002 | CN1386889A Heat treatment method and heat treating furnace thereby |
| 12/25/2002 | CN1386869A Great fuel oil fired annealing furnace |
| 12/25/2002 | CN1386868A Laser quenching device |
| 12/25/2002 | CN1096913C Method of mfg. gear wheel |
| 12/24/2002 | US6498328 Transverse flux induction heating device with magnetic circuit of variable width |
| 12/24/2002 | US6497330 Carrier substrate |
| 12/19/2002 | WO2002101098A1 Crawler bushing and method and device for producing the same |
| 12/19/2002 | US20020189717 Process of production of compressor shoe |
| 12/19/2002 | US20020189399 Chromium, nickel, molybdenum and nitrogen with pitting resistance equivalent number of >/= 50, remelting to homogenize |
| 12/19/2002 | DE10128999A1 Roller used for transporting hot metallic strip material or steel cast strands comprises a shaft and a casing electrically and/or thermally insulated on the roller ends |
| 12/19/2002 | DE10128200A1 Verfahren zur Herstellung eines gehärteten Blechprofils A method of producing a hardened sheet metal profile |
| 12/18/2002 | EP1266972A1 Process for manufacturing a hardened sheet metal profile |
| 12/18/2002 | EP1266041A1 Method for making a multiphase hot-rolled steel strip |
| 12/18/2002 | EP1019561B1 Method and device for joint oxidation and heat treatment of workpieces |
| 12/18/2002 | EP0853810B1 Heat-treatment of glassy metal alloy for article surveillance system markers |
| 12/18/2002 | CN2526117Y Bimetal band saw heat treater set |
| 12/18/2002 | CN1386140A Cold rolled steel sheet and galvanized steel sheet having strain aging hardening property and method for producing the same |
| 12/18/2002 | CN1386139A Super high tensile cold-rolled steel plate and method for production thereof |
| 12/18/2002 | CN1385281A Method for making and repairing wing surface of integral propeller rotator |
| 12/18/2002 | CN1096502C Widthwise uniform cooling system for steel strip in continuous steel strip heat treatment step |
| 12/18/2002 | CN1096367C Tyre with peripheral steel cable for fixing tyre body and technology for treating steel cable |
| 12/17/2002 | US6495094 Apparatus and method for suppressing growth of oxide film on coil |
| 12/17/2002 | US6495092 Combustion apparatus and melting furnace for nonferrous metals |
| 12/17/2002 | US6494973 Transforming a wire blank by a heat treatment process into a drawable state; drawing wire blank to a drawn wire; hardening and tempering to obtain predetermined mechanical properties by passing the drawn wire through furnace |
| 12/17/2002 | US6494970 Heat resistant steel casting and method of manufacturing the same |
| 12/17/2002 | US6494683 Repaired turbine rotor wheel |
| 12/12/2002 | US20020185201 A steel, comprising carbon, silicon, manganese, chromium, sulfur and iron; minimizes hardness increase after forging; improved in rolling resistance, nonpitting, wear resistance and fatigue strength; hub units; constant velocity joints |
| 12/12/2002 | DE10126378A1 Carbon steel louver board and its manufacture method - long life time, stable, and environmental product |
| 12/11/2002 | EP1264915A2 A carburising method and an apparatus therefor |
| 12/11/2002 | EP1264153A1 Means and method for heating |
| 12/11/2002 | EP1117846B1 Method for changing the properties of the surfaces of work pieces |
| 12/11/2002 | CN2525099Y Vacuum hydrogen protective heat treatment furnace |
| 12/11/2002 | CN1095880C New bonderizing process at normal temp. before laser-quenching |
| 12/10/2002 | US6492631 Apparatus for quenching metallic material |
| 12/10/2002 | US6491865 Heat treat fixture apparatus and method of heat treat hardening thin metal work pieces |
| 12/10/2002 | US6491767 Case hardened dies for improved die life |
| 12/05/2002 | WO2002097140A1 Automatic pipe quenching apparatus |
| 12/05/2002 | US20020182557 Heat-treating furnace with magnetic field and heat treatment method using same |
| 12/05/2002 | US20020182099 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 |
| 12/05/2002 | US20020179581 Hardening equipment and hardening method |
| 12/05/2002 | US20020179217 Cable for anchoring a tire carcass |
| 12/05/2002 | US20020179207 Method for manufacturing high strength bolt excellent in resistance to delayed fracture and to relaxation |
| 12/05/2002 | US20020179205 Planetary carrier and method of manufacture |
| 12/05/2002 | US20020179204 Prevention warping; heat resistance; moncracking |
| 12/05/2002 | US20020179203 Induction heat-treating of threaded fasteners with a rotary conveyor |
| 12/05/2002 | US20020179193 Hot rolling; finishing; controlling temperature |
| 12/05/2002 | US20020179188 Iron alloy with carbide or carbonitride surface; wear resistance |
| 12/05/2002 | US20020179186 Carburization treatment method and carburization treatment apparatus |
| 12/04/2002 | EP1262661A1 Shoe for swash plate type compressor and method of producing the same |
| 12/04/2002 | EP1262270A1 Apparatus and method for laser hardening |
| 12/04/2002 | EP1187944B1 Rolling structure steel |
| 12/04/2002 | CN1382811A Laser technology for superfine crystallizing on surface of antiweat cast iron |
| 12/03/2002 | US6488791 Method for strengthening a steel channel member |
| 12/03/2002 | US6488789 Rotary member having double rows of raceway surfaces and a fixed member coupled to a mounting member forming a surface hardened layer by a high-frequency quenching technique; durability |
| 12/03/2002 | US6488788 Flat plate member with a gear portion and a process for making the same |
| 12/03/2002 | US6488787 Cold workable steel bar or wire and process |
| 12/03/2002 | CA2264818C Device for rotating and simultaneous hardening by electric induction |
| 11/28/2002 | DE10219350A1 Hot working die steel excelling in molten corrosion resistance and strength at elevated temperature contains carbon, silicon, manganese, nickel, chromium, molybdenum, tungsten, cobalt, boron, nitrogen, and iron and impurities |
| 11/28/2002 | DE10216837A1 Wärmebehandlungsverfahren und dabei verwendeter Wärmebehandlungsofen Heat treatment process and there used heat treatment furnace |
| 11/27/2002 | EP1260302A1 Method for laser working, especially for laser soldering and/or laser welding, of workpieces with a high reflectivity |
| 11/27/2002 | EP1259657A2 Modified low temperature case hardening processes |
| 11/27/2002 | CN2522429Y Base of heat-treated cyclic basket |
| 11/27/2002 | CN2522428Y Improvement of continuous hot-wind tempering stove structure |
| 11/27/2002 | CN1382228A Cu-free cast aluminium alloy and method of heat treatment for producing same |
| 11/27/2002 | CN1381680A Press cake for CVT band and manufacture method thereof |
| 11/26/2002 | US6485584 Method of manufacturing a ferritic-martensitic, oxide dispersion strengthened alloy |
| 11/26/2002 | US6485582 Advanced case carburizing secondary hardening steels |
| 11/26/2002 | US6485027 Surface heat treatment of piston rings |
| 11/21/2002 | WO2002092870A1 Method of quenching alloy sheet to minimize distortion |
| 11/21/2002 | WO2002092867A1 Ferritic stainless steel strip excellent in freeze of shape formed by working |
| 11/21/2002 | WO2002092250A1 Heat-treated deformed steel wire, and method and apparatus for manufacturing the same |
| 11/21/2002 | WO2002022905A3 Stainless steel and stainless steel surface |