| Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082) |
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| 05/14/2008 | CN101177793A Spinneret plate for melt spinning and preparation method thereof |
| 05/14/2008 | CN101177766A High-chromium alloy cast-iron concrete mixer lining board and method for manufacturing the same |
| 05/14/2008 | CN101177765A Disk shearing blade and method for manufacturing the same |
| 05/14/2008 | CN101177764A N-containing martensitic stainless steel wire for high-tension bolt and method for manufacturing the same |
| 05/14/2008 | CN101177761A Crane gib arm rack pipe and manufacturing method |
| 05/14/2008 | CN101177728A Method for heating continuous-casting bearing steel bloom |
| 05/14/2008 | CN101177727A Quenching mechanism of steel ball quenching machine |
| 05/14/2008 | CN101177726A Steel ball quenching machine |
| 05/14/2008 | CN101176966A Indented wire stabilizing treatment technique |
| 05/14/2008 | CN101176964A Method for manufacturing impact absorber for vehicle |
| 05/14/2008 | CN101176882A Process technique of high-strength titanium alloy pipes |
| 05/14/2008 | CN100387731C Tendon running-water quenching method and apparatus |
| 05/13/2008 | US7371294 High-strength cold-rolled steel sheet having outstanding elongation and superior stretch flange formability and method for production therof |
| 05/08/2008 | WO2008055182A1 Heat treatment method of inlaid pressure vessels |
| 05/08/2008 | WO2008053884A1 Steel wire for spring excellent in fatigue property and drawing property |
| 05/08/2008 | WO2008053525A1 Induction heater |
| 05/08/2008 | WO2008053273A1 Coated steel strips, methods of making the same, methods of using the same, stamping blanks prepared from the same, stamped products prepared from the same, and articles of manufacture which contain such a stamped product |
| 05/08/2008 | US20080105341 Heat treatment of inlaid pressure vessels |
| 05/08/2008 | US20080105340 Heat Treatment Method of Inlaid Pressure Vessels |
| 05/08/2008 | DE102006056518A1 Vorrichtung zur schwebenden Führung von bahnförmigem Material Device for suspended guidance of sheet material |
| 05/08/2008 | CA2668393A1 Coated steel strips, fabrication processes thereof, usage processes thereof, stamping blanks prepared from same, stamped products prepared therefrom and manufactured products containing such a stamped product |
| 05/07/2008 | EP1918408A2 Martensitic free cutting stainless steel |
| 05/07/2008 | EP1918401A2 Steel alloy for machining tools |
| 05/07/2008 | EP1918400A1 Seamless steel pipe for line pipe and method for producing same |
| 05/07/2008 | EP1918398A1 Seamless steel pipe for line pipe and method for producing same |
| 05/07/2008 | EP1918397A1 Seamless steel pipe for line pipe and method for producing same |
| 05/07/2008 | EP1918396A1 High-tension steel sheet and process for producing the same |
| 05/07/2008 | EP1918395A1 Seamless steel pipe and method for producing same |
| 05/07/2008 | EP1918388A1 High-strength steel pipe and method of heat treatment therefor |
| 05/07/2008 | EP1918387A1 Method and device for inductive hardening of coil springs |
| 05/07/2008 | EP1359230B1 Production method for steel plate and equipment therefor |
| 05/07/2008 | EP1325163B1 Dual-purpose installation for continuous annealing and hot dip plating |
| 05/07/2008 | EP0896554B1 Ferritic nitrocarburization process for steel balls |
| 05/07/2008 | CN201056581Y Furnace bed driving mechanism of silicon steel rotating high-temperature annealing oven |
| 05/07/2008 | CN201056580Y Quenching machine tool for combined slight shaft parts |
| 05/07/2008 | CN201056579Y Intermediate frequency induction heat-treatment machine tool for thick-walled pipe |
| 05/07/2008 | CN201056577Y Plasma machining machine tool for roller surface |
| 05/07/2008 | CN201056576Y Plasma gun for roller surface modification |
| 05/07/2008 | CN101175965A Supporting device for articles to be fired that has an elastic support fixing |
| 05/07/2008 | CN101173343A High-strength abrasion-proof cast steel lining board and manufacturing method thereof |
| 05/07/2008 | CN101173324A Novel technique for comprehensive utilization of continuous strip annealing furnace flue gas exhaust heat and device thereof |
| 05/07/2008 | CN101172316A High temperature electron beam welding |
| 05/07/2008 | CN100386165C Method of manufacturing metal ring for endless metal belt |
| 05/06/2008 | US7368077 Induction quenching installation, in particular for fabricating suspension components |
| 05/06/2008 | US7367208 Coil winding method for metal in bars |
| 05/02/2008 | WO2008050800A1 Sheave member for belt continuously variable transmissions and method of manufacturing it |
| 05/02/2008 | WO2008050628A1 Seamless steel tube for airbag accumulators and process for production thereof |
| 05/02/2008 | CA2667534A1 Seamless steel tube for an airbag accumulator and a process for its manufacture |
| 04/30/2008 | CN201053024Y Modified step-by-step heating furnace |
| 04/30/2008 | CN201053023Y Heat processing furnace |
| 04/30/2008 | CN201053022Y Steel cylinder normalizing furnace |
| 04/30/2008 | CN201052538Y Precision elongated punch guiding protecting device |
| 04/30/2008 | CN101171352A Ferrite stainless steel sheet for bellows stock pipe |
| 04/30/2008 | CN101171347A Water cooling method for heated steel material and steel material obtained by the water cooling method |
| 04/30/2008 | CN101169984A Million-kilowatts-class nuclear power pressure container safe end manufacture process |
| 04/30/2008 | CN101168798A High-speed tool steel wire vacuum heat treatment technique |
| 04/30/2008 | CN101168797A Excellent carbon-steel on-line forecasting and tissue sorbitizing controlling method |
| 04/30/2008 | CN101168796A Directly charging heat treatment furnace |
| 04/30/2008 | CN101168795A Carburization quenching method for round hole thin wall work-piece |
| 04/30/2008 | CN101168794A Long thick wall petroleum drilling and mining steel pipe heat treatment technique |
| 04/30/2008 | CN101168793A Medium cooling and following rolling model supporting method in niobium-containing thick steel plate rolling process |
| 04/30/2008 | CN101168792A Applying method of temperature section timing oil quenching in wear-resisting material heat treatment |
| 04/30/2008 | CN101168226A Technique for producing circle quenching roller |
| 04/30/2008 | CN101168167A Deformation magnesium alloy belt type rolling method |
| 04/30/2008 | CN100385020C Method for producing helical springs or stabilisers. |
| 04/30/2008 | CN100385019C Process of production and production system of high strength galvannealed steel sheet |
| 04/29/2008 | USRE40263 Pearlitic steel rail having excellent wear resistance and method of producing the same |
| 04/29/2008 | US7365290 Method and device for thin plate article induction heating, and thin plate article |
| 04/29/2008 | US7364629 applying an aqueous slurry or dry coating by electrostatics; annealing separators consisting mainly of alumina on decarburized-annealed sheets having oxidized layers to provide a mirror-like surface after finish-annealing, to decrease iron losses properties; cores of transformers and electric appliances |
| 04/29/2008 | CA2437658C Heat-treated steel wire for high strength spring |
| 04/24/2008 | WO2008046542A2 Method and device for the crack-free welding, repair welding, or surface welding of materials prone to forming hot cracks |
| 04/24/2008 | DE102006051886B3 Method for inductively heating valve springs comprises placing the springs individually on mandrels for heating and subsequent quenching |
| 04/23/2008 | EP1914325A1 Continuous heat treatment furnace and utilizing the same, metal pipe and method of heat treatment |
| 04/23/2008 | EP1914324A1 Process for producing seamless steel pipe |
| 04/23/2008 | EP1913165A1 Device for cooling a metal strip |
| 04/23/2008 | CN201049959Y Bell-type furnace intermediate countercurrent plate |
| 04/23/2008 | CN101166843A High-strength steel sheet plated with zinc by hot dipping with excellent formability and process for producing the same |
| 04/23/2008 | CN101165306A Sucker rod cold-drawing recovery production process |
| 04/23/2008 | CN101165201A High-strength steel plate and method for manufacturing the same |
| 04/23/2008 | CN101165195A Method for thinning steel microscopic structure of crank axle for vessel |
| 04/23/2008 | CN100383273C Work-hardened material from stainless steel |
| 04/23/2008 | CN100383258C Scale removing method for induction heating apparatus and induction heating apparatus |
| 04/23/2008 | CN100383257C Protective inner cover for annealing stainless steel |
| 04/23/2008 | CN100382892C Method for producing high chromium tungsten-containing composite anti-wear roll ring |
| 04/22/2008 | US7361237 Smelting. hot rolling, cold rolling, crystallization |
| 04/22/2008 | US7361015 Clamp device and clamp method for heat-treated article |
| 04/22/2008 | CA2501200C An apparatus and method for improving work surface during forming and shaping of materials |
| 04/17/2008 | WO2008044356A1 High-strength steel wire excelling in ductility and process for producing the same |
| 04/17/2008 | WO2008044354A1 High-strength wire rod excelling in wire drawability and process for producing the same |
| 04/17/2008 | WO2008044299A1 Brake discs excellent in resistance to temper softening and toughness |
| 04/17/2008 | WO2008043617A2 Method for heat treatment |
| 04/17/2008 | WO2008023121A3 Steel composition for special uses, in particular in the automotive field |
| 04/17/2008 | WO2008016736A3 Method for designing corrosion resistant alloy tubular strings |
| 04/17/2008 | DE112005003112T5 Hochfestes Stahlblech und Verfahren zu dessen Herstellung A high-strength steel sheet and process for its preparation |
| 04/16/2008 | EP1909994A1 Production of thin steel strip |
| 04/16/2008 | CN201046982Y Large-scale annular element well type heat treating furnace |
| 04/16/2008 | CN201046981Y Large-scale and super-large saw blade plate continuous heat treatment deformation controlling equipment |
| 04/16/2008 | CN201046980Y Inner nozzle |
| 04/16/2008 | CN201046979Y Expansion pipe |
| 04/16/2008 | CN201046978Y Double-venting external sprayer |