| Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082) |
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| 09/01/2004 | CN1164399C Pipe spanner with aluminium alloy handle and its production method |
| 08/31/2004 | US6783612 Method and apparatus for in-line heat treatment of hot rolled stock |
| 08/31/2004 | US6782689 Method of making a chain |
| 08/26/2004 | WO2004073009A2 Plasma processing installation, influenced by a magnetic field, for processing a continuous material or a workpiece |
| 08/26/2004 | WO2004047507A3 Coating compositions for solder spheres, powders and preforms, methods of production and uses thereof |
| 08/26/2004 | US20040164614 Crawler bushing and method and device for producing the same |
| 08/26/2004 | US20040164071 Heat treatment apparatus, heat treatment method, medium on which heat treatment program is recorded, and steel product |
| 08/26/2004 | US20040163741 Method of manufacture of ultra-low carbon steel |
| 08/26/2004 | US20040163738 Chromium steel alloys and articles made thereof |
| 08/26/2004 | US20040163439 Method of making a hardened motor-vehicle part of complex shape |
| 08/26/2004 | US20040163436 Method of metal and alloy billet treatment |
| 08/26/2004 | DE10306063A1 Production of workpieces made from amour steel for special vehicles comprises softening each workpiece at a temperature above the Curie point, cooling, processing the workpiece, bringing to a temperature above the Curie point and quenching |
| 08/25/2004 | EP1450056A2 High-strength connecting rod and method of producing same |
| 08/25/2004 | CN1163330C Direct flash butt welding connection method between high manganese steel frog or manganese steel rail and common steel rail |
| 08/19/2004 | WO2004070747A1 Heat treatment system |
| 08/19/2004 | WO2004070075A1 Steel sheet plated by hot dipping with alloyed zinc with excellent adhesion and process for producing the same |
| 08/19/2004 | WO2004070065A1 Method for surface hardening of thermo rolls |
| 08/19/2004 | WO2004069453A2 Refractory metal annealing bands |
| 08/19/2004 | US20040162680 Method and device for determining wheel force |
| 08/19/2004 | US20040159378 coating opposite faces of a flat sheet-metal workpiece of low ductility; stripping the coating from the faces in one region while leaving the coating on the faces in another region; deforming and heating to harden only the uncoated region |
| 08/19/2004 | US20040159373 main structure of retained austenite (5-30 area %) and ferrite (no less than 50 area %); there exist no more than 40 carbide grains per 2000 mu m2 between the retained austenite and the ferrite; high strength; suitable for automobiles |
| 08/19/2004 | DE10304979A1 Process and assembly to shape and harden sheet steel in e.g. automotive body panel industry by presentation of hot work piece to drawing press |
| 08/19/2004 | CA2514118A1 Refractory metal annealing bands |
| 08/18/2004 | EP1447455A1 Method for processing welded metalwork joints by high-frequency hummering |
| 08/18/2004 | EP1446509A1 Duplex stainless steels |
| 08/18/2004 | EP1446244A1 Flattened u-bolt and method-for making said u-bolt |
| 08/18/2004 | EP1177709A4 Induction heat treatment of complex-shaped workpieces |
| 08/18/2004 | EP0970260B1 Process for quenching heat treatable metal alloys |
| 08/18/2004 | CN2634300Y Heat storage type gas radiation pipe burner |
| 08/18/2004 | CN1522311A Pealite based rail excellent in wear resistance and ductility and method for production thereof |
| 08/17/2004 | US6778057 Inductor for heating inner-circumference of hole |
| 08/17/2004 | US6776857 Method and device for manufacturing a hot rolled steel strip |
| 08/17/2004 | US6776856 Aluminum-killed medium-carbon steel sheet for containers |
| 08/12/2004 | WO2004067793A2 Corrosion and wear resistant alloy |
| 08/12/2004 | WO2004067789A1 High strength high toughness high carbon steel wire rod and process for producing the same |
| 08/12/2004 | WO2004067783A2 Eglin steel - a low alloy high strength composition |
| 08/12/2004 | WO2004042790A3 Method for increasing the copper to superconductor ratio in a superconductor wire |
| 08/12/2004 | US20040154705 Fastening element made of carbon-containing steel and method for the production thereof |
| 08/12/2004 | US20040154182 Device for heat treating metallic webs in-line |
| 08/12/2004 | DE20305452U1 Device is for transporting metallic workpieces, particularly during heat treatment and involves heat-insulated and gas and/or vacuum-tight transport chamber |
| 08/12/2004 | DE20305423U1 Vorrichtung zum Transportieren metallischer Werkstücke Apparatus for transporting metallic work pieces |
| 08/12/2004 | DE10303757A1 Manufacturing method of gear with 90-180 teeth, by forging, annealing, trimming and grinding initial product of gear, rolling initial product to have 90 to 180 teeth, and then performing heat treatment and surface treatment |
| 08/12/2004 | DE10254522B3 Annealing flat strips of hardened steel, repeatedly heats in protective atmosphere, flexes and cools, drawing strip linearly through cooling zones |
| 08/12/2004 | CA2514181A1 Eglin steel - a low alloy high strength composition |
| 08/11/2004 | EP1444371A1 In-line process for the recrystallization of solidified coarse strips in carbon steel and in low-alloyed steel and so obtainable strips having a highly checked microstructure |
| 08/11/2004 | EP1444059A1 Control method for a production line for rolling hot-rolled metal strips disposed upstream of a cooling stretch |
| 08/11/2004 | CN2632094Y Structure of continuous mollifier apparatus |
| 08/11/2004 | CN1520464A Nonoriented electromagnetic steel sheet |
| 08/11/2004 | CN1162048C Induction heating type galvanized steel sheet alloying system, high frequency heating apparatus, impedance matching apparatus and impedance transforming method |
| 08/10/2004 | US6773803 Far-infrared emission powder with antibacterial activity and bio-wave steel plate coated with resin containing same |
| 08/10/2004 | US6773519 High and low pressure integrated type turbine rotor |
| 08/10/2004 | CA2291457C Coiling temperature control method and system |
| 08/05/2004 | WO2004065646A1 Steel product for induction hardening, induction-hardened member using the same, and methods for producing them |
| 08/05/2004 | US20040151558 Threaded fastener |
| 08/05/2004 | US20040149359 Method of fabricating a steel forging, and a forging obtained thereby |
| 08/05/2004 | US20040149355 Dimensional accuracy during punching; magnetic flux density; varying silicon content to adjust core loss and strength; reluctance and direct current brushless motors |
| 08/05/2004 | US20040148839 Method for gun barrel manufacture using tailored autofrettage mandrels |
| 08/05/2004 | DE10152092B4 Kurbelwelle und Herstellungsverfahren für diese Crankshaft and manufacturing methods for these |
| 08/04/2004 | EP1443120A1 Device for continuous heat treatment of metal strips |
| 08/04/2004 | EP1442661A1 Detectable stainless steel needles for meat packing |
| 08/04/2004 | EP1442147A1 Steel sheet for vitreous enameling excellent in workability and fish scale resistance, and method for producing the same |
| 08/04/2004 | EP1442145A2 Apparatus and method for transferring heat treated parts |
| 08/04/2004 | CN1518607A High tensile hot rolled steel sheet excellentin shape freezing property and endurance fatigue characteristics after forming and its making method |
| 08/04/2004 | CN1160163C Ultra-thin steel sheet and mfg. method therefor |
| 08/03/2004 | US6770155 For manufacture of railroad rail of steel alloy; cooling to convert from an austenitic steel grain microstructure to a fine pearlitic grain microstructure |
| 08/03/2004 | US6770152 High temperature wear resistance; low cost; inner ring, outer ring and/or rolling element formed of steel including 1.1 ratio of molybdenum and chromium along with carbon, silicon, manganese and iron |
| 08/03/2004 | CA2117008C Coiler furnace for a hot strip |
| 07/29/2004 | WO2004064228A1 Stator for motor and process for producing the same |
| 07/29/2004 | WO2004063410A1 High-strength hot-dip galvanized steel sheet and method for producing the same |
| 07/29/2004 | WO2004063403A1 Catenary type furnace |
| 07/29/2004 | WO2004063402A1 Sheet metal annealing method |
| 07/29/2004 | US20040144453 Heat-treatment to increase malleability, stamping out, machining, then age hardening to precipitation to improve mechanical properties |
| 07/29/2004 | DE10237446B4 Verwendung eines Chrom-Stahls und dessen Herstellung Use of a chromium steel and its manufacturing |
| 07/29/2004 | DE10112295B4 Herstellung eines Zylindergehäuses eines Doppelschneckenextruders Producing a cylinder housing of a twin-screw extruder |
| 07/28/2004 | EP1150784B1 Method for manufacturing of strips of stainless steel and integrated rolling mill line |
| 07/28/2004 | CN1516746A Roller table roll, particularly for conveying furnace-heated metallic strip material |
| 07/28/2004 | CN1516745A Crawler bushing and method and device for producing the same |
| 07/28/2004 | CN1159463C Piling suspension chain workpiece heat treatment production line |
| 07/27/2004 | US6767504 Inner pressure of purge chamber is reduced to a predetermined pressure level; atmosphere is supplied to interior of thus evacuated purge chamber so as to render inner pressure of this purge chamber equal to the inner pressure of heat chamber |
| 07/27/2004 | US6767417 Steel sheet and method for manufacturing the same |
| 07/22/2004 | US20040140024 Method for enhancing the metallurgical quality of products treated in a furnace |
| 07/22/2004 | DE10315418B3 Thermomechanical treatment of round steel bars heated above the recrystallization temperature useful in the thermomechanical and heat treatment of steel |
| 07/22/2004 | DE10312802B3 Workpiece carrier in heat resistant fiber bonded ceramic material with a workpiece reception region and a segmented distancing device useful for heat treatment of workpieces |
| 07/22/2004 | DE10128200B4 Verfahren zur Herstellung eines gehärteten Blechprofils A method of producing a hardened sheet metal profile |
| 07/21/2004 | EP1069193B1 Method for controlling the atmosphere and the tension in a furnace for continuously heat treating metal band |
| 07/21/2004 | CN1514887A Nanocarbide precipitation strengthened ultrahigh-strength corrosion-resistant, structural steels |
| 07/21/2004 | CN1514883A High tensile hot-rolled steel sheet excellent in resistance to scuff on mold and in fatigue characteristics and its mfg. method |
| 07/21/2004 | CN1158398C Cold rolled steel sheet and galvanized steel sheet having strain aging hardening property and method for producing the same |
| 07/20/2004 | US6764557 Hardening by subjecting to heat treatment at above 900 degrees celsius in reducing atmosphere |
| 07/20/2004 | US6764555 High-strength austenitic stainless steel strip having excellent flatness and method of manufacturing same |
| 07/20/2004 | CA2255136C Induction heating type galvanized steel sheet alloying system, high frequency heating apparatus, impedance matching apparatus and impedance transforming method |
| 07/15/2004 | WO2004059017A2 Device and method for treating an internal wall of a recess that has been machined in a workpiece |
| 07/15/2004 | WO2004059016A2 Method for the production of a screw, and screw produced according to said method |
| 07/15/2004 | WO2004058441A2 Method for arc welding of ductile cast iron |
| 07/15/2004 | US20040135459 Motor stator core and method of manufacturing the same |
| 07/15/2004 | US20040134575 Method of processing nonferrous metal alloy and processing apparatus thereof |
| 07/15/2004 | US20040134570 Coated steel part with regions of different ductility |
| 07/15/2004 | DE10358351A1 Valve tappet for combustion engine and production process, has micro pits formed by radiation in the smooth gas carbon nitride steel upper surface of the tappet |
| 07/15/2004 | DE10247998B4 Verfahren zum Herstellen eines besonders gut verformbaren kaltgewalzten Stahlbands oder -blechs A process for producing a particularly good deformable cold rolled steel strip or sheet |
| 07/15/2004 | DE10238972B4 Verfahren und Vorrichtung zur Durchlaufvergütung von Bandstahl sowie entsprechend hergestellter Bandstahl Method and apparatus for continuous quenching and tempering of steel strip and correspondingly produced steel strip |