Patents
Sitemap › C21 - Metallurgy of iron › C21D - Modifying the physical structure of ferrous metals; General devices for heat treatment of ferrous or non-ferrous metals or alloys; Making metal malleable by decarburisation, tempering, or other treatments › C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering
Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435)
12/1999
12/22/1999EP0907431B1 Process for shaping a flat metal workpiece
12/22/1999CN2354969Y Surface quenching apparatus for cylinder bodies, cylinder jackets, crankshafts and brake drums
12/22/1999CN1239216A Improvements to furnaces for reheating siderurgical products
12/21/1999US6003359 Progressive deep-drawing machine
12/21/1999US6003330 Device for water cooling of rolled steel sections
12/21/1999CA2081055C Method and apparatus for heat treatment of metal parts utilizing infrared radiation
12/16/1999WO1999065038A1 Simplified method of modifying a surface of a material
12/16/1999DE19826508A1 Zugfahrzeug mit gehärteter Sattelplatte, Verfahren zum Härten einer Sattelplatte für ein Zugfahrzeug Tractor with hardened saddle plate method for curing a fifth wheel on a tractor
12/15/1999CN2353764Y Inner cover of cover-type annealing furnace
12/14/1999US6002100 Bearing having micropores and design method thereof
12/09/1999DE19824893A1 Damping natural saw blade vibrations brought about by the sawing process
12/09/1999DE19824574A1 Verfahren und Vorrichtung zur effektiven Abkühlung von Behandlungsgut Method and device for effective cooling of treated
12/08/1999EP0962538A2 Process and device for efficient cooling of workpieces
12/08/1999EP0961840A1 Method and installation for tempering metallic strips
12/08/1999CN2352543Y Heat-resistant, steel round plate, high temp. sectional and continuous type flame solution heat treatment furnace
12/08/1999CN1237778A Expanded form mask for color Braun tube and its material
12/08/1999CN1237493A Billet-watter-cooling method and water cooling trough
12/08/1999CN1047206C Method and apparatus for controlled turbulent purging of open containers
12/07/1999USRE36423 Hot rolling, annealing, cold rolling, decarburizating
12/07/1999US5997806 Heat-resisting cast steel
12/07/1999US5997805 High carbon, high density forming
12/07/1999US5997665 Process for manufacturing a clad sheet which includes an abrasion-resistant layer made of tool steel, and clad sheet obtained
12/07/1999US5997290 Revolving transfer furnace for treating workpieces
12/07/1999US5997286 Thermal treating apparatus and process
12/07/1999CA2071190C Steel spring, and steel bar and method for producing same
12/02/1999WO1999061368A1 Hydrogen generation from reforming organic molecules using a palladium membrane reactor
12/01/1999EP0960951A1 Steel with improved core toughness in case-carburized components
12/01/1999EP0960949A1 Gas quenching device
12/01/1999EP0960670A1 Method for water-cooling slabs and cooling water vessel
12/01/1999EP0841993B1 Method for the manufacture of a strip of formable steel
12/01/1999CN1046964C Sprocket and manufacturing method thereof
12/01/1999CN1046963C Press-formed article and method for strengthening the same
11/1999
11/30/1999US5992616 Apparatus for the guiding of workpieces
11/30/1999US5992159 Method and apparatus for heat extraction by controlled spray cooling
11/30/1999CA2093905C High-strength steel parts and method of making
11/24/1999EP0959145A1 Method and apparatus for carrying out the heating of a galvannealed process
11/24/1999EP0957968A2 High performance wires for use in medical devices and alloys therefor
11/24/1999CN1235882A Hot-rolling method for stainless steel blank
11/24/1999CN1046766C Heat treatment process of medium-high carbon low aloyed steel forged ball and overhead rollaway type quenching apparatus
11/23/1999US5989647 Heat-treatment device and process
11/18/1999DE19822156A1 Verfahren und Vorrichtung zur Durchführung der Glühung eines Galvannealing-Prozesses A method and apparatus for performing the annealing of a galvannealing process
11/17/1999EP0957182A2 A martensitic heat resisting steel
11/17/1999EP0957181A1 Alloy steel for sliding surfaces
11/17/1999EP0956378A1 Laser induced improvement of surfaces
11/17/1999EP0956369A1 A method for manufacturing of curved and quenched profiled elements and a die tool for carrying out the method
11/17/1999EP0712642B1 Fire detecting and counteracting method in sealing device at inlet/outlet of compartment of continuous heat treatment furnace or the like for metallic strip
11/17/1999CN2349217Y Vertical atmosphere controllable multi-purpose furnace
11/17/1999CN1046555C Steel material containing fine graphite particles uniformly dispersed therein and having excellent cold workability, machinability and hardenability and manufacture thereof
11/16/1999US5985428 Layer with mixture of iron sulfide and iron nitride particles; wear and heat resistance
11/16/1999US5985059 Transition metal salt compositions that eliminate hydrogen absorption and enhance hydrogen degassing of metal and metal alloys
11/16/1999US5985052 Alloying ferrous iron with phosphorus, austenitizing, austempering in liquid salt bath to form islands of steadite within ausferritic microstructure
11/16/1999US5983951 Iron chromium alloy with ferrite and martensite crystal structure
11/16/1999CA2271816A1 Method and apparatus for carrying out the annealing step of a galvannealing process
11/11/1999DE19820083A1 Verfahren zum Abschrecken von Werkstücken und Wärmebehandlungsanlage zur Durchführung des Verfahrens A method for quenching workpieces and heat treatment installation for implementing the method
11/10/1999EP0955388A1 Die casting steel and method for manufacture
11/10/1999EP0955384A2 Process for quenching workpieces with gases and heat treating installation for carrying out said process
11/10/1999EP0954398A1 Sand core removal and casting heat treatment
11/10/1999CN1234719A Induction heating system with coils capable of bending
11/09/1999US5981919 Method and apparatus for characterizing and controlling the heat treatment of a metal alloy
11/09/1999US5979614 Brake disc produced from martensitic stainless steel and process for producing same
11/04/1999WO1999055921A1 Method for carburizing or carbonitriding metal parts
11/04/1999CA2324943A1 Method for carburizing or carbonitriding metal parts
11/02/1999US5977515 Underwater laser processing device including chamber with partitioning wall
11/02/1999US5976464 Installation for monitoring an atmosphere generation apparatus
11/02/1999US5976053 Method of manufacturing traction rollers for continuously variable transmissions and traction rollers resulting therefrom
11/02/1999US5975405 Diffusion bonding method and diffusion bonding apparatus
11/02/1999US5975271 Spline hub for damper disk assembly
10/1999
10/28/1999WO1999054513A1 Method and apparatus for straightening turbine casings
10/27/1999EP0952232A2 Gas mixture and process for the thermal treatment of metallic workpieces, using the gas mixture
10/27/1999CN1232877A Method of soft annealing high carbon steel
10/26/1999US5972418 Method and apparatus for the manufacture of a workpiece having a rotation-symmetrically hardened surface area
10/26/1999US5972135 Stress relieved grinding rod having hard outer shell
10/21/1999WO1999053107A1 Method for producing a forsterite insulating film on a surface of grain-oriented anisotropic electrotechnical steel sheets
10/20/1999EP0610460B1 Rail thermal treatment process
10/20/1999CN2344411Y Spray quenching equipment
10/20/1999CN1232088A Light beam rotating feed mechanism for hole laser quenching
10/19/1999US5968877 Article comprising substrate sequentially coated with epitaxial buffer layer(s) and high critical temperature (tc) yttrium-barium-copper oxide (ybco) layer
10/19/1999US5968457 Endothermic generation of carbon monoxide and hydrogen from heat treatment of ferrous, nonferrous metals, alloys and metal or ceramic powders
10/19/1999US5968394 Constant current needle annealing
10/19/1999US5968293 Induction heat treating and restraint quenching, cooling along a conveyor and straightening through a series of rollers which are vertically or horizontally adjustable perpendicular to the direction of conveyor travel
10/19/1999CA2159164C Reheating, maintenance and storage furnace for iron and steel products
10/14/1999WO1999051788A1 Tool steel composition
10/14/1999WO1999051786A1 A direct-heated furnace and a method of reheating steel semis
10/14/1999DE19816200A1 Verfahren zur Herstellung eines Forsterit-Isolationsfilms auf einer Oberfläche von korn-orientierten, anisotropen, elektrotechnischen Stahlblechen A method for producing a forsterite insulating film on a surface of grain-oriented anisotropic electrical steel sheets
10/14/1999CA2292742A1 Tool steel composition
10/13/1999EP0949348A1 Process for controlled cooling of aluminium alloy strips and profiles
10/13/1999EP0949346A1 Process of producing a dispersion strengthened ferritic-martensitic alloy
10/13/1999CN1045623C Bluing and low-carbon martensite heat treatment method for high strength building steel bar
10/12/1999US5965048 Heated chamber including an open wall with a gas curtain
10/12/1999US5964398 Vane member and method for producing joint
10/07/1999WO1999050469A1 Cold work steel
10/07/1999WO1999050464A1 Continuous heat treating furnace and atmosphere control method and cooling method in continuous heat treating furnace
10/06/1999EP0947588A1 Process for hot-rolling stainless steel and surface treatment compositions used therein
10/06/1999EP0946776A1 Method of annealing nonferrous metal parts without stickers
10/06/1999EP0946763A1 High strength deep drawing steel developed by reaction with ammonia
10/06/1999CN1231001A Method for manufacturing high magnetic flux density grain oriented electrical steel sheet based on low temperature slab heating method
10/05/1999US5961751 This invention relates to a surface processing method for a steel member accompanied with local melting of the surface of the steel member and to a surface processed steel member having a locally melted and solidified surface layer.
10/05/1999US5961747 Tin-bearing free-machining steel
10/05/1999US5961322 Water cooled inner cover for annealing furnace
10/05/1999US5960825 For a compression chamber
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