| Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082) |
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| 10/17/2012 | CN102734362A Method for manufacturing high-strength and high-plasticity spring by using 60Si2CrVA spring steel |
| 10/17/2012 | CN102732818A Crankshaft nitriding rack |
| 10/17/2012 | CN102732812A Preparation method of iron-nickel-based amorphous or nanocrystalline magnetically soft alloy |
| 10/17/2012 | CN102732804A Bainite steel frog and manufacture method thereof by three-stage cooling after rolling |
| 10/17/2012 | CN102732783A H2S corrosion-resistant steel and preparation method thereof |
| 10/17/2012 | CN102732710A Heat treatment method of steel plate with large thickness |
| 10/17/2012 | CN102732709A Steel coil preheating device |
| 10/17/2012 | CN102732708A Method for reducing welding residual stress of thick plate by utilizing multi-layer and multi-pass welding interlayer welding residual heat to assist vibration |
| 10/17/2012 | CN102732707A Method and apparatus for laser shock processing of weldment at ultralow temperature |
| 10/17/2012 | CN102732706A Spot annealing unit for large swaging weldment and annealing method thereof |
| 10/17/2012 | CN102732705A Heat treatment method of ball cage for drive shaft |
| 10/17/2012 | CN102732703A Method for improving strength of work piece formed by reforming austenitic stainless steel |
| 10/17/2012 | CN102732702A Induction hardening device for automobile turbine wheel shaft sleeve |
| 10/17/2012 | CN102732701A Method for carrying out quenching on bimetal tube with outer low-carbon steel layer and inner high-carbon-chromium bearing steel layer |
| 10/17/2012 | CN102732696A Normalization heat treatment method of heavy-gauge low-alloy steel plates |
| 10/17/2012 | CN102732674A Production method of heavy-gauge large-single-weight low-alloy high-strength structural steel plates |
| 10/17/2012 | CN102729003A Floating oil seal machining process |
| 10/17/2012 | CN102728772A Method for forging large ship crank shaft |
| 10/17/2012 | CN102728652A Manufacturing method of dual-metal seamless steel pipe with outer-layer low-carbon steel and inner-layer bearing steel |
| 10/17/2012 | CN102359691B TA9 expansion joint manufacturing method |
| 10/17/2012 | CN101962738B Superfine carbide high-alloy tool steel shear-steel splicing mechanical blade |
| 10/17/2012 | CN101864515B Steel-wire electric-heating heat treatment device and method |
| 10/17/2012 | CN101775481B Strip material treatment apparatus |
| 10/11/2012 | WO2012137687A1 Hot stamp-molded high-strength component having excellent corrosion resistance after coating, and method for manufacturing same |
| 10/11/2012 | WO2012136897A1 Method for producing a steel product from steel billet, a steel product and a microstructure of a steel |
| 10/11/2012 | WO2012136270A1 A steel sheet suitable for enamelling and method for producing such a sheet |
| 10/11/2012 | US20120255656 Steel sheet for can having excellent surface roughening resistance and manufacturing method thereof |
| 10/11/2012 | US20120255655 Methods for manufacturing a clip and clip |
| 10/11/2012 | DE112008003893B4 Anordnung für Führungselemente einer Hochfrequenzinduktionsspule Arrangement for implementing elements of a high frequency induction coil |
| 10/11/2012 | CA2832357A1 A steel sheet suitable for enamelling and method for producing such a sheet |
| 10/11/2012 | CA2831305A1 Hot stamped high strength part excellent in post painting anticorrosion property and method of production of same |
| 10/10/2012 | EP2508828A1 Method and device for heating metal bolts |
| 10/10/2012 | EP2508641A1 Steel sheet for cans and method for producing same |
| 10/10/2012 | EP2508640A1 HIGH-STRENGTH STEEL SHEET HAVING EXCELLENT HYDROGEN EMBRITTLEMENT RESISTANCE AND MAXIMUM TENSILE STRENGTH OF 900 MPa OR MORE, AND PROCESS FOR PRODUCTION THEREOF |
| 10/10/2012 | EP2508638A1 Ingot for bearing, and process for producing bearing steel |
| 10/10/2012 | EP2508637A1 Bearing steel |
| 10/10/2012 | EP2508628A2 Heating apparatus, heat treatment apparatus, and heating method |
| 10/10/2012 | EP2507400A1 Device for maintaining the dryness of the atmosphere of an annealing furnace for metal strips, and furnace provided with said device |
| 10/10/2012 | EP2507399A1 Hot rolling mill and method for hot rolling a metal strip or sheet |
| 10/10/2012 | EP2507006A1 A method of and a welding station for laying a pipeline, with pipe section welded together by internal and external welding |
| 10/10/2012 | CN202485473U Width-measuring device for hot charging slabs of heating furnaces |
| 10/10/2012 | CN202485460U Inlet and outlet sealing device of annealing furnace |
| 10/10/2012 | CN202485424U Non-standard hood type furnace with intake air from side plane at bottom |
| 10/10/2012 | CN202485414U Multifunctional heat treatment pit furnace |
| 10/10/2012 | CN202482390U Non-standard bell-type furnace provided with base heating device |
| 10/10/2012 | CN202482389U Nonstandard cover type furnace with top forced convection structure |
| 10/10/2012 | CN202482388U Device for recovering tempering waste heat of steel belt heat treatment by using heat-conduction oil as heat-transfer medium |
| 10/10/2012 | CN202482387U Flue gas waste heat recovery system for annealing furnace |
| 10/10/2012 | CN202482386U Atmosphere isolation device for horizontal annealing furnace |
| 10/10/2012 | CN202482385U Furnace pressure control device for continuous annealing furnace |
| 10/10/2012 | CN202482384U Strip steel loosening device |
| 10/10/2012 | CN202482383U Furnace gas isolation device |
| 10/10/2012 | CN202482382U Strip threading rod for horizontal annealing furnace |
| 10/10/2012 | CN202482381U Swinging material feeding roller bed of quenching device |
| 10/10/2012 | CN202482380U Radial wheel mechanism of quenching device |
| 10/10/2012 | CN202482379U Pinch roller mechanism for quenching device |
| 10/10/2012 | CN202482378U Combined heat treatment device |
| 10/10/2012 | CN202482377U 热处理加热炉 Heat treatment furnace |
| 10/10/2012 | CN202482376U Heat treatment turnover tray of differential front shell |
| 10/10/2012 | CN202482375U Aging furnace |
| 10/10/2012 | CN202482374U Well-type large-capacity magnetic heat treatment furnace |
| 10/10/2012 | CN202482372U Bevel gear quenching die |
| 10/10/2012 | CN202482371U Thick steel plate quenching machine with novel structure |
| 10/10/2012 | CN202482367U Improved car-bottom furnace normalization cooling air flue |
| 10/10/2012 | CN202482366U High-temperature furnace roller without being supported by bearing seat |
| 10/10/2012 | CN202482364U Anti-deformation carbon sleeve roller under high temperature |
| 10/10/2012 | CN202482363U Steel ball tempering equipment |
| 10/10/2012 | CN202482358U Material rack of well type transverse magnetic field applied heat treatment furnace |
| 10/10/2012 | CN202481810U Anti-scratch device for strip steel in furnace |
| 10/10/2012 | CN202481809U Carrier roller switching device |
| 10/10/2012 | CN102725431A Steel plate for cold forging and process for producing same |
| 10/10/2012 | CN102725428A Production method for seamless steel pipe used in line pipe, and seamless steel pipe used in line pipe |
| 10/10/2012 | CN102720842A Novel sealing device for sealing rollers and air chambers |
| 10/10/2012 | CN102719742A Limit-specification IF steel and furnace zone through plate method thereof |
| 10/10/2012 | CN102719653A Hot rolling method for automotive steel TG-1 |
| 10/10/2012 | CN102719652A Device and solution for water-quenching heat treatment on sorbitizing heat treatment production line of multi-specification steel wires |
| 10/10/2012 | CN102719651A Rapid induction heating and air cooling heat treatment process for steel wire |
| 10/10/2012 | CN102719650A Heat treatment process for high-carbon steel wires for wire ropes |
| 10/10/2012 | CN102719649A Vibration ageing device for movable loader arms |
| 10/10/2012 | CN102719648A Thermal treatment method and device for metal sheets |
| 10/10/2012 | CN102719647A Intermediate frequency induction quenching process for external surface of track traveling wheel |
| 10/10/2012 | CN102719646A Temperature-controlled-accurately device special for intermediate frequency induction quenching of track traveling wheel outer surface |
| 10/10/2012 | CN102719645A Heat treatment method for twist drills |
| 10/10/2012 | CN102719644A Forecasting method of inner and outer wall temperature difference of 9% Cr martensitic steel thick wall pipeline in heat treatment |
| 10/10/2012 | CN102719643A Heat processing technology of high-carbon carbon steel coil rod for steel wire rope |
| 10/10/2012 | CN102719633A Quenching equipment for large rings |
| 10/10/2012 | CN102719630A Heat treatment process of wear-resistant high-strength low-alloy steel casting piece for automatic container fastening lock |
| 10/10/2012 | CN102719626A Steel pipe and on-line quenching method thereof |
| 10/10/2012 | CN102717235A Heat treatment method for two-way ratchet embedded part of intelligent clutch of motorcycle |
| 10/10/2012 | CN102717168A Technology for manufacturing chord tube for ocean platform pile leg main coil |
| 10/10/2012 | CN102399964B Steel pipe normalizing furnace |
| 10/10/2012 | CN102199703B Method for treating quenching arc-shaped cracks of carbon steel thin-wall ring part |
| 10/10/2012 | CN102162026B Method for annealing weld joint of 45 steel on narrow lap welding machine |
| 10/10/2012 | CN102140569B Quick normalizing heat treatment method for Q345R steel |
| 10/10/2012 | CN102127629B Steel ball bearing and transporting mechanism for steel ball tempering furnace |
| 10/10/2012 | CN102094113B Heat treatment process of train buffer material |
| 10/10/2012 | CN102071300B Method for eliminating induction hardening crack of tubular part with end face tooth |
| 10/10/2012 | CN102059253B Integrated cast steel supporting roller |
| 10/10/2012 | CN102002573B Production line for carrying out quenching and tempering heat treatment on steel rail off-line or on-line railhead tread |
| 10/10/2012 | CN101966622B Laser welding and postweld heat treatment method for Tisub3/subAl-based alloy |