| Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082) |
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| 04/05/2000 | EP0990371A1 Induction heaters to improve transitions in continuous heating systems, and method |
| 04/05/2000 | CN2372327Y Fuel (gas) tempering equipment for plate spring |
| 04/05/2000 | CN1249351A Electrically direct-heating apparatus for in-line continuous bright annealing of stainless steel band |
| 03/30/2000 | WO2000017405A1 Method and apparatus for heat treating steel |
| 03/30/2000 | CA2343305A1 Method and apparatus for heat treating steel |
| 03/29/2000 | EP0988404A1 Rotatable joint for a liquid quenching drum |
| 03/29/2000 | EP0988119A1 Metal strip production |
| 03/29/2000 | EP0795038B1 Sprocket and manufacturing method thereof |
| 03/29/2000 | EP0739253B1 Method and device for manufacturing cold rolled metal sheets or strips, and metal sheets or strips obtained |
| 03/29/2000 | CN2371193Y Heat treater for stainless steel |
| 03/29/2000 | CN1249008A Process for the inhibition control in the production of grain-oriented electrical sheets |
| 03/29/2000 | CN1249007A Process for the inhibition control in the production of grain-oriented electrical sheets |
| 03/29/2000 | CN1249005A Continuous annealing furnace, rolling bearing, annealing method, and method of manufacturing inner and outer races of deeply groove ball bearing |
| 03/29/2000 | CN1050784C Apparatus for cooling rolling belt |
| 03/28/2000 | US6042952 Extremely-thin steel sheets and method of producing the same |
| 03/28/2000 | US6042369 Fluidized-bed heat-treatment process and apparatus for use in a manufacturing line |
| 03/23/2000 | WO2000015854A1 Process for thermal treatment of steel strip |
| 03/23/2000 | WO1999015305A8 A roll assembly for use at high temperature and method of making same |
| 03/22/2000 | CN2370024Y Assembled oil burning (gas-burning) semi open fire heating furnace for steel wire hot treatment |
| 03/22/2000 | CN2370023Y Assembled double body coal burning semi open fire heating furnace for steel wire hot treatment |
| 03/22/2000 | CN2370022Y Annealing device without electric spark |
| 03/22/2000 | CN2370021Y Assembled single coal burning semi open fire heating furnace for steel wire hot treatment |
| 03/22/2000 | CN2370020Y Lift beam of double layer step heating furnace |
| 03/22/2000 | CN1050639C Iron/nickel alloy shadow mask |
| 03/22/2000 | CN1050635C Sealing device for outlet/inlet of controlled atmosphere heat treatment furnace |
| 03/21/2000 | US6040551 Apparatus for hardening the inside contour of a gun barrel with laser radiation |
| 03/16/2000 | WO2000014288A1 Method for producing cold-rolled bands or sheets |
| 03/16/2000 | WO2000013817A1 Light alloy thread-forming screw and its production method |
| 03/16/2000 | DE19841295A1 Steel thermomechanical treatment, especially for torsion-loaded spring element production, comprises deformation under dynamic and/or static austenite recrystallization conditions and martensitic quenching |
| 03/16/2000 | DE19840788A1 Verfahren zur Erzeugung von kaltgewalzten Bändern oder Blechen A process for producing cold-rolled strips or sheets |
| 03/16/2000 | DE19840298A1 Selbstgewindeformende Schraube aus Leichtmetall und Verfahren zu ihrer Herstellung Self-tapping screw made of light metal and process for its preparation |
| 03/16/2000 | CA2342934A1 Method for producing cold-rolled bands or sheets |
| 03/15/2000 | CN2368856Y Tapping device |
| 03/15/2000 | CN1247232A Plasma quenching system and method for metal blades |
| 03/15/2000 | CN1050388C Method of forming drive axle shafts and alloy for making same |
| 03/14/2000 | US6036485 Annealing furnace |
| 03/14/2000 | US6035686 Method and installation for producing biconical wire |
| 03/14/2000 | CA2005220C Roll ring, comprising cemented carbide and cast iron, and method for manufacture of the same |
| 03/09/2000 | WO2000012773A1 Method for manufacturing high adherence enamel-coating steel sheet with superior formability |
| 03/09/2000 | WO2000012768A1 Simple ladle refining method |
| 03/08/2000 | CN2367620Y Compound bearer for steel blank heating furnace of steel rooling mill |
| 03/07/2000 | US6033496 High fatigue strength gear |
| 03/02/2000 | WO2000011235A1 Surface treated rolling bearing and manufacturing method thereof |
| 03/02/2000 | WO2000010744A1 Adjustable side guide with quick change strip heater assembly |
| 03/02/2000 | DE19839181A1 Verfahren zur Randschicht-Verfestigung eines metallenen Bauteiles mittels eines gepulsten Lasers A method for boundary-layer solidification of a metal component by means of a pulsed laser |
| 03/02/2000 | DE19837311A1 Wheel tire or solid wheel, especially for high speed train wheel sets, consists of a special rolling contact bearing steel of specified composition |
| 03/01/2000 | EP0982408A2 Process for surface hardening of a metal workpiece by a pulsed laser |
| 03/01/2000 | CN1049924C Sealing device for inlet or outlet of atmosphere equipment |
| 02/29/2000 | US6031206 Tower furnace for the heat treatment of metal strips |
| 02/29/2000 | US6030471 Surface hardening wear area of wheel having axis of rotation and critical temperature, heating wear area of wheel with induction heater while rotating; monitoring temperature until temperature is greater than critical temperature, quenching |
| 02/29/2000 | US6029714 Stainless steel pipe of bright annealing finish type, having highly-smoothed inner surface and method for producing the same |
| 02/24/2000 | WO2000009769A1 Method for producing a cam that can be placed on a hollow shaft to form a camshaft |
| 02/24/2000 | DE19836247A1 Production of a cam to be mounted on a hollow shaft involves induction heating of the cam runner track and its immediate dowsing with a quenching agent |
| 02/23/2000 | EP0980913A1 Apparatus and methods for generating an artificial atmosphere for the heat treating of materials |
| 02/23/2000 | EP0628641B1 Constrained quenching apparatus and heat treatment apparatus |
| 02/23/2000 | CN1049729C Quick adjusting and testing method for airfuel ratio of covered type furnace |
| 02/23/2000 | CN1049697C Steel sheet having excellent processing characteristics and manufacturing method therefor |
| 02/22/2000 | US6027581 Excellent deep drawability and excellent anti-aging properties, and manufacturing method; contains carbon, silicon, manganese, phosphorus, sulfur, aluminum, nitrogen and titanium, the balance iron in given weight % |
| 02/22/2000 | US6027577 Applying nitriding treatment to a coiled valve spring made of an oil-tempered wire; first shot-blasting cut wires while the coiled valve spring is rotated in a roller-type shot machine and second for longer time in a tumbling shot machine |
| 02/19/2000 | CA2280412A1 Apparatus and methods for generating an artificial atmosphere for the heat treating of materials |
| 02/15/2000 | US6024916 Cast cold tool and method for producing the same |
| 02/15/2000 | US6024913 Precision quenching apparatus and method with induction heating |
| 02/15/2000 | US6024808 Seamless steel pipe manufacturing method and equipment |
| 02/15/2000 | US6024276 Method for bonding dual-phase stainless steel |
| 02/15/2000 | US6024008 Variable displacement compressor, swash plate, and method for hardening swash plate |
| 02/15/2000 | CA2024226C Magnesium oxide coating for electrical steels and a method of coating |
| 02/11/2000 | WO2000065118A1 Casting material for indefinite rollers with a sleeve part and method for producing the same |
| 02/10/2000 | WO2000006790A1 Steel for making a ball bearing part |
| 02/10/2000 | WO2000006789A1 High-strength, high-toughness rolled shape steel and production method thereof |
| 02/10/2000 | DE19919889A1 Chirurgische Nadel Surgical Needle |
| 02/09/2000 | EP0828863A4 Preparation of pre-coated aluminum alloy articles |
| 02/09/2000 | CN1244220A Process for the treatment of grain oriented silicon steel |
| 02/08/2000 | US6023048 Cooling furnaces for strip products |
| 02/08/2000 | US6022427 Thermomechanically hardened by shot peening the unstressed springs followed by thermally destressing them, and shot peening them again. |
| 02/08/2000 | US6021939 Method of producing a wear resistant mechanical component |
| 02/03/2000 | WO2000005422A1 Method and installation for producing dual-phase steel |
| 02/03/2000 | DE19834133C1 Verfahren zur Herstellung von Hohlwellen A process for producing hollow shafts |
| 02/02/2000 | EP0976842A2 Box annealing furnace, method for annealing metal sheet using the same, and annealed metal sheet |
| 02/02/2000 | EP0976467A1 Method and intermediate product for producing hollow shafts |
| 02/02/2000 | EP0975815A1 Method for hardening camshafts and linear inductor for the implementation of said method |
| 02/02/2000 | EP0975814A1 Heat treatment of steel |
| 02/02/2000 | EP0862496B1 Method and device for producing a honeycombed body of heat-treated two or multilayered metal foils |
| 02/02/2000 | CN1243166A Box-type annealing furnace and metal-board annealing method using same, and annealed metal board thereof |
| 02/02/2000 | CN1049011C Heat treatment of steel wire |
| 02/01/2000 | US6019857 Improved breaking strength at the edge portion as well as spalling resistance of the tooth side. |
| 02/01/2000 | US6018855 Movable insulated conveyor for the continuous casting of slabs |
| 02/01/2000 | US6018854 Method of making surface-hardened metal shot |
| 01/27/2000 | DE19839383A1 Verfahren zur thermomechanischen Behandlung von Stahl für torsionsbeanspruchte Federelemente Method for the thermomechanical treatment of steel for torsionally resilient elements |
| 01/27/2000 | DE19833321A1 Method and installation to produce dual phase steels out of hot-rolled strip, with cooling rate at first cooling stage set sufficiently low to obtain temperature which is sufficiently high for rapid transformation of austenite into ferrite |
| 01/26/2000 | EP0974678A1 Process and steel for the manufacturing of welded vessels, intended for use in the presence of hydrogen sulphide |
| 01/26/2000 | EP0974676A2 Process for thermo-mechanically treating steel for torsion spring elements |
| 01/26/2000 | EP0973952A1 Apparatus and method for cooling hot rolled steel rod |
| 01/26/2000 | CN2360420Y Well type mo wire annealing furnace |
| 01/25/2000 | US6017641 Coil spring comprising oil-tempered steel wire with internal hardness of more than hv 550 and which has been decarburized during heating prior to quenching; automobile internal combustion engine valve springs |
| 01/25/2000 | US6016720 Method for the manufacturing of rotary tool holders having seats for cutting inserts |
| 01/25/2000 | CA2194067C Warm forming high-strength steel structural members |
| 01/21/2000 | CA2278407A1 Method and steel product for obtaining a sheet-metal enclosure for use in the presence of hydrogen sulphide |
| 01/20/2000 | WO2000003043A1 Method for producing raw plate for surface treatment plate for can using continuous annealing |
| 01/19/2000 | EP0973001A1 Process for fastening or removing a load in a heat treatment installation with a bottomless furnace |
| 01/19/2000 | EP0972090A1 Steel and process for the manufacture of a part for ball bearing |