| Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082) |
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| 08/31/1999 | CA2137744C Steel for carburized gear |
| 08/25/1999 | EP0937782A2 Martensitic stainless steel having oxide scale layers and method of manufacturing the same |
| 08/25/1999 | EP0937512A1 Low cost apparatus and method for manufacture of light gauge steel strip |
| 08/25/1999 | EP0309563B2 Electric induction heat treating furnace |
| 08/25/1999 | CN1226674A Convection-radiation system for heat treatment of continuous strip |
| 08/25/1999 | CN1044826C Perlite rail of high abrasion resistance and manufacture thereof |
| 08/25/1999 | CN1044822C Superhard heat treatment for tobacco cutting machine blade |
| 08/25/1999 | CA2263021A1 Process to prevent metallic sheets from sticking during metal heating |
| 08/24/1999 | CA2129523C Intermetallic alloys for use in the processing of steel |
| 08/19/1999 | DE19852734A1 Spring especially a vehicle or machine spring with high corrosion fatigue resistance |
| 08/18/1999 | EP0936279A1 Thick cold rolled steel sheet excellent in deep drawability and method of manufacturing the same |
| 08/18/1999 | EP0936276A2 Furnace coiler |
| 08/18/1999 | EP0936275A1 Tension control system for continuous annealing apparatus of steel strip |
| 08/18/1999 | EP0936273A1 Method for heat treatment with laser radiation |
| 08/18/1999 | EP0764298A4 Method for manufacturing flashless metal connecting rod |
| 08/18/1999 | CN1044723C Heat treatment method for alum-contained alloy steel-rail |
| 08/17/1999 | US5938866 Method and an apparatus for the treatment of components by a gas mixture |
| 08/17/1999 | US5938431 Device for ensuring the replacement of a strip support roll in heat treatment furnace |
| 08/17/1999 | US5937688 Adjustable side guide with quick change strip heater assembly |
| 08/17/1999 | CA2081360C Galvanized ultra-high strength steel strip |
| 08/12/1999 | WO1999040594A1 Amorphous alloy with increased operating induction |
| 08/12/1999 | WO1999040230A1 Device for guiding bands in a suspended manner |
| 08/12/1999 | CA2320084A1 Amorphous alloy with increased operating induction |
| 08/11/1999 | EP0935004A1 Improved annealing device for sheet metal |
| 08/11/1999 | EP0874917A4 Process and apparatus to enhance the paintbake response and aging stability of aluminum sheet materials and product therefrom |
| 08/11/1999 | CN1044635C Method for producing austenic stainless steel self-tapping and self-drilling screw |
| 08/11/1999 | CN1044618C Steel rail on-line after-heat strengthening process and its equipment |
| 08/10/1999 | US5934871 Method and apparatus for supplying a anti-oxidizing gas to and simultaneously cooling a shaft and a fan in a heat treatment chamber |
| 08/10/1999 | US5933951 Process for manufacturing a hollow turbomachine blade and a multiple-action furnace press for use in said process |
| 08/05/1999 | WO1999039017A1 Advanced case carburizing secondary hardening steels |
| 08/05/1999 | DE19828074C1 Shotblasting installation for helical compression springs |
| 08/05/1999 | DE19804184A1 Vorrichtung zur schwebenden Führung von Bändern Device for suspended guidance of bands |
| 08/04/1999 | EP0933437A2 Method of heat-treating a hollow cylindrical workpiece |
| 08/04/1999 | CN2331677Y Intermediate frequency furnace for steel cylinder heat-treating |
| 08/04/1999 | CN1224765A Method for heat-treating hollow cylindrical workpiece |
| 08/03/1999 | US5930897 Method and apparatus for tempering knotted coil springs |
| 07/28/1999 | CN2330659Y Mechanical sine-wave cylinder block laser quenching machine tool |
| 07/28/1999 | CN1224071A Cold rolled steel sheet for shadow mask made by low-temperature annealing and manufacturing method therefor |
| 07/28/1999 | CN1224070A Non-ridging ferritic chromium alloyed steel |
| 07/28/1999 | CN1224065A Process for treatment of precision bright seamless steel tube |
| 07/28/1999 | CN1044390C Heat treatment process for eliminating soft zone in supporting roll |
| 07/28/1999 | CN1044389C Steel ball making process |
| 07/28/1999 | CN1044387C Method for medium frequency quenching cam |
| 07/27/1999 | US5927634 Coiling steel rod |
| 07/27/1999 | CA2152216C Corrosion-resistant metallic porous member and method of manufacturing the same |
| 07/22/1999 | WO1999036583A1 Bainite type rail excellent in surface fatigue damage resistance and wear resistance |
| 07/22/1999 | WO1999022038A3 Induction hardening apparatus for a crankshaft |
| 07/22/1999 | CA2259840A1 Shadow mask for cathode ray tube and method of manufacturing same |
| 07/20/1999 | CA2135035C Spring steel of high strength and high corrosion resistance |
| 07/14/1999 | EP0928833A2 Electric heating treatment method, electric heating treatment apparatus, and electrode for electric heating treatment apparatus |
| 07/14/1999 | EP0914479A4 Steel for enameling and method of making it |
| 07/14/1999 | CN2328670Y Energy saving type conductive contact bath for lead quenching of steel wire |
| 07/14/1999 | CN2328669Y Oil combustion open fire heating furnace for heat treatment of micro oxidizing steel wire |
| 07/14/1999 | CN2328668Y Silicon controlled rectifier AC voltage regulating resistance furnace |
| 07/14/1999 | CN2328667Y 无定型电热体加热炉 Amorphous body electric furnace |
| 07/14/1999 | CN2328666Y 粉末电热体加热炉 Body powder electric furnace |
| 07/14/1999 | CN1044139C High strength, high weldability steel bar and wires for prestressed concrete |
| 07/14/1999 | CN1044135C Sealing device for zone outlet/inlet of atmosphere equipment |
| 07/13/1999 | US5922472 Method for preparing pre-coated aluminum alloy articles and articles prepared thereby |
| 07/13/1999 | US5922149 Heat treatment is performed including quenching of the shaping wire to obtain a hardness and predominant martensitic and bainitic steel structure with a small amount of ferrite; hydrogen sulfide corrosion resistance |
| 07/13/1999 | US5921371 Slab transport tire roller and method of producing same |
| 07/08/1999 | WO1999034023A1 Continuous annealing furnace, rolling bearing, annealing method, and method of manufacturing inner and outer races of deeply groove ball bearing |
| 07/08/1999 | DE19821797C1 Hardened steel parts used for roller bearing parts |
| 07/07/1999 | EP0927769A1 Method for controlling the cooling of a moving metal product |
| 07/07/1999 | EP0927505A1 Device for rotating and simultaneous hardening by electric induction |
| 07/07/1999 | CN2327696Y Bottom plate for heat treating furnace |
| 07/07/1999 | CN2327695Y Thin metal wire inductive heating device |
| 07/07/1999 | CN1222106A Cutting die and method of forming |
| 07/06/1999 | US5918719 Tire roller for transporting slabs |
| 07/01/1999 | DE19805837C1 Heat treatment by laser radiation |
| 06/30/1999 | EP0926361A1 Pin, pin and washer fastener, washer for the fastener and pin-making method |
| 06/30/1999 | EP0925855A2 Device for the controlled cooling from the rolling temperature of hot-rolled profiles, in particular beams |
| 06/30/1999 | EP0925379A1 Age hardenable alloy with a unique combination of very high strength and good toughness |
| 06/30/1999 | EP0925377A1 Wear-resistant camshaft and method of producing the same |
| 06/30/1999 | EP0925376A1 Process for the production of grain oriented electrical steel strip starting from thin slabs |
| 06/30/1999 | CN2326610Y Eight-cam simutaneous-heating quenching inductor |
| 06/30/1999 | CN1221041A Method and system for cooling strip material |
| 06/30/1999 | CN1221037A Alloying system and heating control device for high grade galvanized steel sheet |
| 06/30/1999 | CN1221036A Method for hardening surface of roller and leveller roll and hardening equipment |
| 06/29/1999 | US5916388 Method and apparatus for the treatment of stainless steel surfaces |
| 06/29/1999 | US5916387 Method of reducing the gaping values in the web saw cut test on steel railway tracks |
| 06/29/1999 | US5916383 Method of shot peening a hardened metal product with shot having high hardness |
| 06/29/1999 | US5916114 High hardness boron steel rotary blade |
| 06/29/1999 | US5915958 Convertible apparatus for heat treating materials |
| 06/29/1999 | US5915457 Method for operating a continuous casting plant |
| 06/24/1999 | WO1999031284A1 Loading device for supporting parts to be thermally treated in a furnace |
| 06/24/1999 | WO1999031282A1 Cold drawn wire and method for the manufacturing of such wire |
| 06/24/1999 | DE19755001A1 Method for hardening a product |
| 06/23/1999 | EP0924313A1 Non-ridging ferritic chromium alloyed steel |
| 06/23/1999 | CN1220704A Method for making electric sheet steel with oriented grains for manufacture of transfermer magnetic circuits in particular |
| 06/23/1999 | CN1220571A Induction heating type galvanized steel sheet alloying system, high frequency heating apparatus, impedance matching apparatus and impedance transforming method |
| 06/22/1999 | US5914088 Apparatus for continuously annealing amorphous alloy cores with closed magnetic path |
| 06/17/1999 | WO1999029520A1 A body comprising a curved metal tread and a method for reducing noise emission |
| 06/16/1999 | EP0922778A1 Modular device for the vacuum heat treatment |
| 06/16/1999 | EP0922120A1 Revolving furnace for the treatment of work pieces |
| 06/16/1999 | EP0922119A1 Process for the production of grain oriented electrical steel strip having high magnetic characteristics, starting from thin slabs |
| 06/16/1999 | CN1219977A Process for producing grain-orientated magnetic steel sheet |
| 06/16/1999 | CN1043664C High strength steel strand for prestressed concrete and method for manufacturing same |
| 06/15/1999 | US5911842 Heat resisting steel and steam turbine rotor shaft and method of making thereof |
| 06/15/1999 | US5911781 Integral coiler furnace drive motor |