| Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082) |
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| 04/22/2009 | CN101412144A Welding procedure of 0Cr11Ni2MoNbV thick plate material buried arc welding automatic arc welding |
| 04/22/2009 | CN101412142A Welding procedure of 0Cr11Ni2MoNbV light sheet material handwork tungsten electrode argon arc |
| 04/22/2009 | CN101412137A Welding procedure of 0Cr11Ni2MoNbV medium plate material handwork arc welding |
| 04/22/2009 | CN101412066A Hammer forging technique of GH4169 alloy dish |
| 04/22/2009 | CN101412059A Method for molding triplet by cold extrusion |
| 04/22/2009 | CN100480411C Steel and steel wire for high strength spring |
| 04/22/2009 | CN100480399C Production method and device of removing internal stress of steel wire for cold upsetting |
| 04/22/2009 | CN100479979C Producing technology for large size copper heterotype plate |
| 04/22/2009 | CN100479940C Technology for repairing semi-steel roller with flux-core welding wire built-up welding |
| 04/21/2009 | US7520944 Transforming a molten liquid alloy into a crystalline solid solution by cooling, then allowing solid crystalline alloy to remain below the remelting temperature such that metal remelts to form amorphous phase in an undercooled liquid, and cooling the composite alloy; does not use of high-rate quenching |
| 04/21/2009 | CA2421847C Method and apparatus for welding pipes together |
| 04/21/2009 | CA2381220C Apparatus for supporting material to be treated in continuously operated thermal treatment furnaces |
| 04/16/2009 | WO2009048838A1 Complex metallographic structured steel and method of manufacturing same |
| 04/16/2009 | WO2009048811A2 Apparatus for removing dent in sheet metal and method thereof |
| 04/16/2009 | WO2009048137A1 Duplex stainless steel wire material, steel wire, bolt, and method for production of the bolt |
| 04/16/2009 | WO2009047926A1 Pearlite steel rail of high internal hardness type excellent in wear resistance, fatigue failure resistance and delayed fracture resistance and process for production of the same |
| 04/16/2009 | WO2009046469A1 Hood-type annealing furnace having gas flushing line for the heat treatment of annealing product packets |
| 04/16/2009 | DE102007044995A1 Tempervorrichtung zum Tempern von Gegenständen Tempering annealing of objects |
| 04/16/2009 | CA2701903A1 Complex metallographic structured steel and method of manufacturing same |
| 04/15/2009 | EP2048256A1 Stainless steel sheet for parts and process for manufacturing the same |
| 04/15/2009 | EP2048254A1 High-strength steel sheet excellent in stretch flangeability and fatigue property |
| 04/15/2009 | EP2048250A1 Sealing apparatus and strip plate continuously annealing equipment |
| 04/15/2009 | EP1718118B1 Method and device for induction heating and hardening apparatus |
| 04/15/2009 | CN201222024Y Novel sample steel plate baking oven |
| 04/15/2009 | CN201220955Y Protector for rotating high temperature annealing furnace door drive clutch |
| 04/15/2009 | CN201220954Y Furnace pressure protector |
| 04/15/2009 | CN101410587A Expandable tubular assembly |
| 04/15/2009 | CN101410544A Hot-rolled ultra soft high-carbon steel plate and process for production thereof |
| 04/15/2009 | CN101410542A High-strength seamless steel pipe for mechanical structure which has excellent toughness and weldability, and method for manufacture thereof |
| 04/15/2009 | CN101410537A Process for producing seamless two-phase stainless-steel pipe |
| 04/15/2009 | CN101410535A Method for production of martensitic stainless steel pipe |
| 04/15/2009 | CN101410534A Quality warranty system in induction heat treatment facilities |
| 04/15/2009 | CN101409340A Heat-treatment method for magnesium power cell anode sheet material |
| 04/15/2009 | CN101407891A Boron-containing semi-high speed steel cold roller and manufacturing method thereof |
| 04/15/2009 | CN101407857A Metal belt continuous heat treatment apparatus |
| 04/15/2009 | CN101407856A Continuous annealing device |
| 04/15/2009 | CN101407855A Method for improving stress corrosion resistance of integral forging low-voltage rotor of nuclear steam turbine |
| 04/15/2009 | CN101407019A Process for manufacturing corrosion resistant low-chromium tubing and casing in CO2 and H2S coexisted environment |
| 04/15/2009 | CN101407017A Technique for processing welded structure cement carbon quenching gear |
| 04/15/2009 | CN101407015A Method for manufacturing vermicular cast iron trolley body |
| 04/15/2009 | CN101406922A Method for producing grinding ball and rotary cutting and roll forging machine for producing grinding ball |
| 04/15/2009 | CN101406900A Centrifugal casting half steel/graphite steel composite roll collar and preparation method thereof |
| 04/15/2009 | CN101406899A Method for preparing non-brazing seam thin compound layer titanium/steel composite board |
| 04/15/2009 | CN100478482C Fe-base amorphous alloy thin strip of excellent soft magnetic characteristic, iron core produced therefrom and master alloy for quench solidification thin strip production for use therein |
| 04/15/2009 | CN100478460C Improved method for reducing folding formation of heating steel strip |
| 04/15/2009 | CN100478459C Marmem capable of changing with temp., mfg. method thereof |
| 04/15/2009 | CN100478457C Method for preparing iron-nickel alloy strip |
| 04/14/2009 | US7518082 Method for arc welding of ductile cast iron |
| 04/09/2009 | WO2009045147A1 Rolling element or ring formed from a bearing steel |
| 04/09/2009 | WO2009045146A1 Heat-treatment process for a steel |
| 04/09/2009 | WO2009043537A1 Reinforcement of an annular groove of a piston for an internal combustion engine |
| 04/09/2009 | WO2009043070A1 Method for connecting a manganese high-carbon steel cast part to a control rail and intermediate piece for use in such a method |
| 04/09/2009 | WO2009043068A1 Intermediate piece for connecting manganese steel molded bodies with carbon steel and method for connecting manganese high-carbon steel cast parts to control rails |
| 04/09/2009 | US20090090437 Method for manufacturing a wrought metal plate product having a gradient in engineering properties |
| 04/09/2009 | US20090090436 Method for brake rotor assembly and manufacture |
| 04/09/2009 | DE102007048041A1 Drehherdofen Rotary hearth furnace |
| 04/09/2009 | CA2700100A1 Intermediate piece for connecting molded articles of manganese steel with carbon steel as well as method for connecting austenitic manganese steel casting pieces with standard rails |
| 04/08/2009 | EP2045348A1 Bend pipe and process for producing the same |
| 04/08/2009 | EP2045347A1 Non-oriented magnetic steel sheet with high strength |
| 04/08/2009 | EP2045341A1 Process for producing pearlitic rail excellent in wearing resistance and ductility |
| 04/08/2009 | EP2045340A1 Comb-shaped laminated cylinder head for an inducer with a magnetic field passing through it for reheating strips of metal |
| 04/08/2009 | EP2045339A1 Workpiece for rolling wear stress made of through hardened steel and method of heat treatment |
| 04/08/2009 | EP2044228A1 Seamless precision steel tubes with improved isotropic toughness at low temperature for hydraulic cylinders and process for obtaining the same |
| 04/08/2009 | CN201217675Y Thermal treatment control device |
| 04/08/2009 | CN201217674Y Furnace hearth roller salamander removing apparatus |
| 04/08/2009 | CN201217673Y Crankshaft turning device |
| 04/08/2009 | CN201217672Y Thermal treatment electric furnace set |
| 04/08/2009 | CN201217671Y Cooling tank for thermal treatment electric furnace set |
| 04/08/2009 | CN201217670Y Intermediate-frequency quenching inductor for caterpillar excavating machine expansion wheel |
| 04/08/2009 | CN101403032A Thermal treatment process for quick cutting steel composite roll |
| 04/08/2009 | CN101403031A Weldless steel tube hole shrinkage |
| 04/08/2009 | CN101403030A On-line laser machining apparatus for strengthening and toughening treatment of steel rail surface |
| 04/08/2009 | CN101403029A Method and device for quenching traction arc face location of end pin hole of coupler hook body |
| 04/08/2009 | CN101403025A Heating method for silicon-containing vanadium steel-containing casting blank |
| 04/08/2009 | CN101402425A Soft tube winding shrinking apparatus |
| 04/08/2009 | CN101402167A Manufacturing method of stainless steel band for flexible thin-film solar cell |
| 04/08/2009 | CN101402138A Powder alloy smithing float grease seal ring with upper and lower double-layer and method of producing the same |
| 04/08/2009 | CN101402101A Manufacturing process for high-anti-molybdenum square tablet |
| 04/08/2009 | CN101402100A Method for producing nickel-aluminum composite belt |
| 04/08/2009 | CN100476032C Chemical passivation method for enhancing corrosion resistance of continuous annealing IF steel cold rolling plate |
| 04/08/2009 | CN100476004C Non-oriented silicon steel sheet having excellent core loss and production method thereof |
| 04/08/2009 | CN100475983C Bright annealing furnace |
| 04/08/2009 | CN100475978C Furnace type structure of heating furnace |
| 04/08/2009 | CN100475435C Method for preparing novel PS forme base |
| 04/08/2009 | CN100475430C Manufacturing process of chain wheel for chain saw |
| 04/07/2009 | US7515395 Material of case for storage cell |
| 04/07/2009 | US7513121 Apparatus and method for improving work surface during forming and shaping of materials |
| 04/07/2009 | CA2314624C Manufacturing process for iron-carbon-manganese alloy strips, and strips produced thereby |
| 04/02/2009 | WO2009041729A1 Insulation structure of induction heating coil |
| 04/02/2009 | WO2009041665A1 Method for refining texture of ferrous material, and ferrous material and blade having microscopic texture |
| 04/02/2009 | WO2009041117A1 Jig for vacuum heat treatment and method of vacuum heat treatment |
| 04/02/2009 | WO2009041025A1 Quenching method and device of ring-shaped article |
| 04/02/2009 | US20090084830 Tool assembly heat treatment method |
| 04/02/2009 | US20090084155 Method to Form Pin Having Void Reducing Pin Head and Flattening Head to Perform the Method |
| 04/02/2009 | DE102007043154A1 Verfahren und Vorrichtung zum Härten von Profilen Method and apparatus for curing profiles |
| 04/01/2009 | EP2042615A1 Brake discs excellent in resistance to temper softening and toughness |
| 04/01/2009 | EP2041325A1 Continuous thermal treatment installation intended for bright annealing a strip of stainless steel |
| 04/01/2009 | EP1611260A4 Method and apparatus for strengthening of powder metal gears by ausforming |
| 04/01/2009 | EP1325966B1 Super-high strength cold-rolled steel sheet and method for production thereof |
| 04/01/2009 | CN201214676Y Energy-saving type sheet metal strip continuous annealing oven |