| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 04/25/2002 | DE10051203A1 Production of a treatment gas containing carbon monoxide and hydrogen used for heat treating metallic material comprises heating a gas mixture containing oxygen and nitrogen |
| 04/24/2002 | EP1198605A2 Methods of forming steel |
| 04/24/2002 | EP1198603A1 Free-machining steels containing tin, antimony, and/or arsenic |
| 04/24/2002 | EP1198602A1 Medium carbon steels and low alloy steels with enhanced machinability |
| 04/24/2002 | EP1198307A1 Metal gasket and method of manufacture |
| 04/24/2002 | EP1097248B1 Case hardened steel with high tempering temperature, method for obtaining same and parts formed with said steel |
| 04/23/2002 | US6375760 Method for controlling structure of two-phase steel |
| 04/23/2002 | US6374932 Heat management drilling system and method |
| 04/23/2002 | US6374704 Steel-tooth bit with improved toughness |
| 04/18/2002 | US20020043358 Production of thin steel strip |
| 04/18/2002 | US20020043357 Method of producing steel strip |
| 04/18/2002 | US20020043304 Method of producing steel strip |
| 04/18/2002 | US20020043092 Method and apparatus for flexible manufacturing a discrete curved product from feed stock |
| 04/18/2002 | DE10050673C1 Heat treatment, e.g. annealing, of workpieces in conveyor furnace under inert and reductant gases continues in inert atmosphere on reaching upper limiting value of oxygen partial pressure |
| 04/18/2002 | DE10046273A1 Process for cooling a metal strip made of a light metal alloy, e.g. aluminum alloy comprises forcing the strip in a direction behind the cooling section with a cross-section having the shape of a circle to reduce its deformation |
| 04/17/2002 | EP1197571A1 Steel product for oil well having high strength and being excellent in resistance to sulfide stress cracking |
| 04/17/2002 | EP1196643A1 Method and device for hardening bearing surfaces of crankshafts |
| 04/16/2002 | US6372058 Permits flattening of screen of color picture tube |
| 04/11/2002 | WO2002028569A1 A method of producing steel strip |
| 04/11/2002 | WO2002010599A3 High speed angular contact ball bearing |
| 04/11/2002 | US20020040905 Durability and film-forming properties |
| 04/11/2002 | US20020040744 Steel wire rod for cold forging and method for producing the same |
| 04/11/2002 | CA2422133A1 A method of producing steel strip |
| 04/10/2002 | EP1195447A1 Hot rolled steel plate, cold rolled steel plate and hot dip galvanized steel plate being excellent in strain aging hardening characteristics, and method for their production |
| 04/10/2002 | EP1194251A1 Method and apparatus for in-line heat treatment of hot rolled stock |
| 04/10/2002 | CN1082781C 感应加热装置 Induction heating apparatus |
| 04/09/2002 | US6368430 Process for quenching heat treatable metal alloys |
| 04/04/2002 | WO2002026424A1 Production of thin steel strip |
| 04/04/2002 | WO2002026422A1 A method of producing steel |
| 04/04/2002 | US20020038678 Method to produce grain-oriented electrical steel sheet having high magnetic flux density |
| 04/04/2002 | DE10044362A1 Controlled quenching of difficult-to-harden steels from austenitic region follows specific paths with respect to perlitic, bainitic and martensitic regions. |
| 04/03/2002 | EP1193413A1 Rolling support device and method for manufacturing the same |
| 04/03/2002 | CN1082095C Steel plate for electric use and iron core of motor or transformer |
| 04/03/2002 | CN1082094C Method for producing iron-base workpiece with high young's modulus and toughness |
| 04/02/2002 | US6364974 Quenching apparatus and method for hardening steel parts |
| 04/02/2002 | US6364968 High-strength hot-rolled steel sheet having excellent stretch flangeability, and method of producing the same |
| 03/28/2002 | WO2002025231A1 Surface-hardened precision weight and process of making same |
| 03/28/2002 | WO2002024965A1 Device for inductively heating workpieces |
| 03/28/2002 | WO2002024964A1 Method for making a roll shell of a roll used in the manufacture or further processing of paper and/or board |
| 03/28/2002 | US20020036075 Method and apparatus for determining the cooling action of a flowing gas atmosphere on workpieces |
| 03/28/2002 | DE10131154A1 Flaches plattenartiges Teil mit Zahnabschnitt Flat plate-like member having tooth portion |
| 03/28/2002 | DE10046547A1 Inductive heating device for rotationally symmetrical conductive workpiece has 2 magnetisable coil cores for inductive heating coils separated by air-gap receiving workpiece |
| 03/27/2002 | EP1191116A1 Austenic steel |
| 03/27/2002 | EP1191115A1 High carbon steel sheet and method for production thereof |
| 03/27/2002 | EP1191111A1 A method and an apparatus for press tempering |
| 03/27/2002 | CN1341757A Hot-rolled stainless steel annealing process under protection of full hydrogen gas |
| 03/26/2002 | US6362462 Induction hardening coil for a crankshaft |
| 03/26/2002 | US6361625 Used for sharp curves of a high-axle load railroad |
| 03/26/2002 | US6360973 Slot nozzle for spraying a continuous casting product with a cooling liquid |
| 03/26/2002 | CA2166713C Warm forming high strength steel parts |
| 03/21/2002 | WO2002022910A2 Surface on a stainless steel |
| 03/21/2002 | WO2002022908A2 Process of treating stainless steel |
| 03/21/2002 | WO2002022905A2 Stainless steel and stainless steel surface |
| 03/21/2002 | WO2002022904A1 Super high tensile cold-rolled steel plate and method for production thereof |
| 03/21/2002 | US20020033210 High chromium ferritic heat resisting steel and method of heat treatment for the same |
| 03/21/2002 | US20020033053 Method of evaluating high fatigue strength material in high tensile strength steel and creation of high fatigue strength material |
| 03/20/2002 | EP1187944A1 Rolling structure steel |
| 03/20/2002 | CN1340630A Roller allocated at entrance and exit sides in quenching zone of continuous annealing furnace and quenching zone device using the roller |
| 03/19/2002 | US6358465 Device for exchanging heat with a flat product |
| 03/19/2002 | US6358337 Process for the annealing of drawn carbon steel rolls and coils of carbon steel sheet |
| 03/19/2002 | US6358336 Heat resistance Cr-Mo alloy steel |
| 03/19/2002 | US6357758 Metal gasket and method of manufacturing |
| 03/14/2002 | WO2002021061A1 Method for heating metallurgical products |
| 03/14/2002 | US20020029825 Advanced case carburizing secondary hardening steels |
| 03/14/2002 | DE10143697A1 Process for removing heat from the soldering or welding region of two metallic workpieces comprises measuring the temperature of the metallic materials to be joined |
| 03/13/2002 | EP1185719A1 Spray-deposited steel, method for the production of the same and a composite substance |
| 03/13/2002 | EP1105543B1 Method for producing a cam that can be placed on a hollow shaft to form a camshaft |
| 03/13/2002 | CN1340148A Method and apparatus for destruction of suspencted terrorist weapons by detonation in a contained environment |
| 03/13/2002 | CN1080586C Heat treatment nitrogen base atmosphere selection deoxidizing catalyst |
| 03/12/2002 | US6355121 Modified etching bath for the deposition of a protective surface chemistry that eliminates hydrogen absorption at elevated temperatures |
| 03/12/2002 | US6355119 Heat treatment method for producing boundary-layer hardened long products and flat products of unalloyed or low-alloy steel |
| 03/12/2002 | US6354181 Method and apparatus for the destruction of suspected terrorist weapons by detonation in a contained environment |
| 03/07/2002 | US20020026968 Method and apparatus for producing fine wire |
| 03/07/2002 | DE10041179A1 Arrangement for processing inner surface of cylindrical bore directs cooling medium jet to inner surface to follow focus of laser beam producing local melting for alloy powder application |
| 03/06/2002 | EP1183399A1 Rolling bearing steel having a surface with a lower bainitic structure and a method for the production thereof |
| 03/06/2002 | EP0812365B1 Methods for annealing high manganic cold rolled steel sheet |
| 03/06/2002 | CN2480378Y Electric spark coating device |
| 03/05/2002 | US6352141 Bainitically hardened brake disk |
| 02/28/2002 | US20020024166 Punch and die |
| 02/28/2002 | DE10139639A1 Heat treatment furnace used for heat treating metallic workpieces consists of two ovens with rollers for transporting the workpieces from one oven to the next oven |
| 02/28/2002 | DE10040147A1 High strength steel used in production of machine components and oil production tools contains alloying additions of silicon, manganese, chromium, nickel, copper, aluminum, titanium and niobium |
| 02/28/2002 | DE10037053A1 Verfahren und Vorrichtung zum Plasmaimpulsverfestigen eines metallischen Bauteils Method and apparatus for pulsed plasma solidifying a metallic component |
| 02/27/2002 | EP1182268A1 High strength, high toughness, seamless steel pipe for line pipe |
| 02/27/2002 | EP0833951B1 Method of making a heat treated steel casting and a heat treated steel casting |
| 02/27/2002 | CN1337473A Heat treatment method of raising the hardness of structural alloy steel |
| 02/27/2002 | CN1079841C Martensitic stainless steel having high mechanical strength and corrosion resistance, related products and its production method of said products from said stainless stell |
| 02/27/2002 | CN1079838C Heat treatment method for preventing carburized parts from generating grinding crack |
| 02/26/2002 | US6349586 Apparatus and method for annealing container side wall edge for necking |
| 02/21/2002 | WO2002014758A1 Apparatus and method for strengthening articles of manufacture through cryogenic thermal cycling |
| 02/21/2002 | US20020022379 Reformation and crystallization of tantalum oxide film |
| 02/21/2002 | US20020020948 Gas hardening cell |
| 02/21/2002 | US20020020474 From the rolling heat, using measuring technological means in cooperation iwth a computing program, to calculate the quantity of heat to be removed from different section parts; rails, for example to prevent warping |
| 02/21/2002 | US20020020455 Pressurized fluid pipe |
| 02/21/2002 | DE10124393A1 Hitzebeständiger Stahl, Verfahren zur thermischen Behandlung von hitzebeständigem Stahl, und Kompenten aus hitzebeständigem Stahl A heat-resistant steel, process for the thermal treatment of heat-resistant steel, heat-resistant steel and Kompenten from |
| 02/20/2002 | EP0981931B1 Induction oven for melting metals |
| 02/20/2002 | CN2477647Y Fast quenching appts. |
| 02/20/2002 | CN1079446C Process for mfg. carburized or carbonitrided steel component |
| 02/20/2002 | CN1079438C Plasma quenching system and method for metal blades |
| 02/20/2002 | CN1079437C Light beam rotating feed mechanism for hole laser quenching |
| 02/19/2002 | US6348112 Method for manufacturing a trailer hitch assembly |