| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 06/10/2004 | US20040108024 Methods of manufacturing hot-rolled and hot-dip galvanized steel sheet excellent in strain age hardening property |
| 06/10/2004 | US20040108020 Cooled and annealed bainite steel part, and a method of manufacturing it |
| 06/10/2004 | US20040107896 Plasma-assisted decrystallization |
| 06/10/2004 | US20040107757 Method of making structural components |
| 06/10/2004 | CA2506571A1 Method for the production of dual phase sheet steel |
| 06/09/2004 | EP1426452A1 Cooled and annealed article in bainitic steel, and production process thereof |
| 06/09/2004 | EP1425436A1 Oil removing device for cleaning pipes that are present in the form of coils |
| 06/09/2004 | EP1425426A2 Device for quenching and tempering long-length rolling stock |
| 06/09/2004 | EP0828862B2 Martensitic stainless steel having high mechanical strength and corrosion resistance and relative manufactured articles |
| 06/09/2004 | DE10255260A1 Verwendung einer Stahllegierung als Werkstoff zur Herstellung von Rohrleitungen für Kraftfahrzeuge Use of a steel alloy as a material for producing pipelines for motor vehicles |
| 06/09/2004 | CN1503849A Press moulding and its high frequency quenching method and its high frequency quenching device |
| 06/09/2004 | CN1502707A Part heat treatment method for parts to be heat treated and apparatus thereof |
| 06/09/2004 | CN1502706A High frequency quenching device for uniform speed universal joint |
| 06/09/2004 | CN1153228C Amorphous alloy with increased operating induction |
| 06/08/2004 | US6746548 Triple-phase nano-composite steels |
| 06/08/2004 | US6746238 Cooling system for reducing particles pollution |
| 06/03/2004 | WO2004047507A2 Coating compositions for solder spheres, powders and preforms, methods of production and uses thereof |
| 06/03/2004 | WO2004046400A1 Cold-worked steels with packet-lath martensite/austenite microstructure |
| 06/03/2004 | WO2004046399A1 Ultrasonic impact processing machine, and ultrasonic impact processing device |
| 06/03/2004 | WO2004046394A1 Method of manufacturing metal product having nano-crystallized surface layer part |
| 06/03/2004 | US20040105997 steel has specified levels of impurities and nitrogen to aluminum ratio; tensile strength increased by press forming and heat treatment while maintaining excellent deep drawability in press forming; structural strength |
| 06/03/2004 | US20040105777 Method for the production of a part of a rolling bearing |
| 06/03/2004 | US20040103963 Gas supplying devices for supplying an atmospheric gas consisting of hydrogen or a mixed gas of hydrogen and argon, are provided on the outlet side, atmospheric gas is supplied into the tube from the front end , continuous heat treatment |
| 06/03/2004 | US20040103962 Suitable as raw material steel sheets for molded products such as building members, mechanical structural parts, automobile structural parts |
| 06/03/2004 | US20040103961 Continuously detecting a diameter of steel wire in heat treatments of steel wire , controlling the amount of energy of induction heating supplied to steel wire whereby steel wire is evenly heat treated over the entire length |
| 06/03/2004 | US20040103959 Wear resistance, hardenability and tempering resistance, and hardness and toughness; for use in screws and barrels for feeding and conducting plastic masses in machines for the manufacturing of plastic components, molds, knives, rolling mills |
| 06/03/2004 | DE10254846A1 Verfahren zum Einsatzhärten von Bauteilen aus Warmarbeitsstählen mittels Unterdruckaufkohlung Method of case hardening components from hot work steels using Unterdruckaufkohlung |
| 06/02/2004 | EP1424402A1 Process for avoiding the adhesion of metal parts during annealing |
| 06/02/2004 | EP1423218A1 Method and apparatus for distorting a workpiece |
| 06/02/2004 | EP1423215A1 Arrangement for cooling heat-treated wires |
| 06/02/2004 | CN1501761A Laminar flow arc plasma jet material surface processing method |
| 06/02/2004 | CN1151908C Flexible lamina for laser impact treatment |
| 06/01/2004 | US6743311 Forging method |
| 06/01/2004 | US6742374 Method for partly reinforcing a workpiece |
| 06/01/2004 | CA2239427C A stress relieved grinding rod having hard outer shell |
| 05/27/2004 | WO2004044248A1 Systems and methods for controlling heat treating atmospheres and processes based upon measurement of ammonia concentration |
| 05/27/2004 | WO2004011684A8 A method and a skid member for reducing temperature difference in a heating subject and a skid apparatus using them |
| 05/27/2004 | US20040101430 Steel alloy plastic moulding tool and tough-hardened blank for plastic moulding tools |
| 05/27/2004 | US20040099349 Heat treatment of alloys to form microstructure martensite and ferritic stainless steels, having tensile strength |
| 05/27/2004 | US20040099344 Plating alloys substrates and heating in the presence of oxidizers to form oxidized layers containing magnetite on the surfaces; durability |
| 05/26/2004 | EP1218560B1 Steel material, its use and its manufacture |
| 05/26/2004 | CN2617780Y High frequency electric spark coating devices |
| 05/26/2004 | CN2617776Y Rotary heating and linkage cooling high frequency quenching device |
| 05/26/2004 | CN2617775Y Medium frequency induction quenching inductor of vehicle half shaft |
| 05/26/2004 | CN1500155A High strength and high ductility steel plate having hyperfine crystal grain structure produced by subjecting ordinary low carbon steel to low strain working and annealing,and method for prodn. thereof |
| 05/25/2004 | US6740175 A steel, comprising carbon, silicon, manganese, chromium, sulfur and iron; minimizes hardness increase after forging; improved in rolling resistance, nonpitting, wear resistance and fatigue strength; hub units; constant velocity joints |
| 05/25/2004 | US6739995 Pushing block for CVT belt and manufacturing method therefor |
| 05/25/2004 | US6739384 Cooled in a manner whereby a grain growth inhibitor needed to develop the grain orientation by the process of secondary grain growth is precipitated as a finely and uniformly dispersed phase |
| 05/21/2004 | WO2004042092A1 Method and device for recycling gas |
| 05/21/2004 | WO2004031418A3 Method for manufacturing products by means of deformation at increased temperatures |
| 05/19/2004 | EP1419281A2 Method for increasing the dynamic stability under load of a toothed structural component |
| 05/19/2004 | DE10315419B3 Production of screw springs or stabilizers made from steel comprises comparing the heating temperature over the rod lengths and maintaining between the rollers |
| 05/19/2004 | DE10251486A1 Recovering gas for re-use, from process chamber operating under pressure, e.g. quenching, involves using one or more compression stages for extraction, in accordance with chamber internal pressure |
| 05/19/2004 | CN2617048Y Electrode needle and electrode needle sleeve |
| 05/19/2004 | CN1498283A Steel wire excellent in descalability in mechanical descaling and method for production thereof |
| 05/19/2004 | CN1497194A Rolling bearing filled with balls and ball cam follower for engine |
| 05/13/2004 | WO2004040024A1 Method for producing grain oriented magnetic steel sheet and grain oriented magnetic steel sheet |
| 05/13/2004 | WO2004039517A1 Mold for casting and method of surface treatment thereof |
| 05/13/2004 | WO2003038140A8 Steel sheet for vitreous enameling and method for producing the same |
| 05/13/2004 | US20040091194 Bearing part and fabrication method therefor |
| 05/13/2004 | US20040089701 Long-life heat-resisting low alloy steel welded component and method of manufacturing the same |
| 05/13/2004 | US20040088921 Gas generator and method for generating a treatment gas, which contains co and h2 for heat treating metallic material |
| 05/13/2004 | DE10247939A1 Process for heat treating metallic workpieces and materials comprises transporting the products to be treated through an annealing furnace, introducing hydrogen as protective and reaction gas, and feeding nitrogen openings as inert gas |
| 05/12/2004 | EP1418246A1 Heat treatment for a steel bearing |
| 05/12/2004 | EP1418245A2 Long-life heat-resisting low alloy steel welded component and method of manufacture the same |
| 05/12/2004 | CN1496340A Heat transfer fluids useable for cooling items, such as optical fibers |
| 05/12/2004 | CN1495278A Production method of cold-rolled plate and hot-dip galvanized sheet steel with good strain-aged hardening characteristics |
| 05/11/2004 | US6734406 Hardening transition surfaces; quenching with coolant; articulated shafts |
| 05/11/2004 | US6733599 Decarburization annealing followed by coating of annealing separator and final annealing, wherein alumina powder is used as annealing separator |
| 05/11/2004 | US6732698 Austempered gray iron cylinder liner and method of manufacture |
| 05/06/2004 | WO2004018715A3 Method and device for the continuous annealing of strip steel and correspondingly produced strip steel |
| 05/06/2004 | EP1305133B1 Method and device for hardening a metal component by plasma pulse technology |
| 05/06/2004 | DE202004001099U1 Device for hardening contours on surface of hardenable material, e.g. steel, comprises heat source for locally heating region on surface, and control units coupled to heat source |
| 05/06/2004 | CA2448091A1 Long-life heat-resisting low alloy steel welded component and method of manufacturing the same |
| 05/05/2004 | CN1494598A Rapid cooling device for steel band in continuous annealing equipment |
| 05/05/2004 | CN1493772A Roller element and its mfg. method |
| 04/29/2004 | WO2004035853A1 Hydrocarbon gas mixture for the under-pressure carburizing of steel |
| 04/29/2004 | WO2004035839A1 Screw or tapping screw |
| 04/29/2004 | WO2003095058A3 Plasma-assisted multi-part processing |
| 04/29/2004 | US20040079514 Production of thin steel strip |
| 04/29/2004 | US20040079448 Spall propagation properties of case-hardened M50 and M50NiL bearings |
| 04/29/2004 | US20040079067 Hot rolling, cold working; heat treatment by high frequency heating; drawing |
| 04/28/2004 | EP1413641A1 Method and apparatus for heat treating nonferrous alloys using liquid sodium |
| 04/28/2004 | EP1413633A1 Process for manufacturing hardened components made of steel |
| 04/28/2004 | EP1413631A2 Improved spall propagation properties of case-hardened M50 and M50NIL bearings |
| 04/28/2004 | EP1412543A1 Method for cooling work pieces especially shape-rolled products from rail steel |
| 04/28/2004 | EP1412542A1 Method for strengthening a steel channel member |
| 04/28/2004 | EP1412541A2 Method for segmentation of digital images |
| 04/28/2004 | EP1412146A1 Method for increasing the shearing resistance in disk chipper knife mounting clamps and a disk chipper equipped with such knife mounting clamps |
| 04/28/2004 | CN2613488Y Intenral heating-cooling nitrate quenching furnace |
| 04/28/2004 | CN1492061A High pressure gas quenching cooling device of aerosol forced circulation |
| 04/28/2004 | CN1492060A High pressure gas quenching cooling method of aerosol forced circulation |
| 04/28/2004 | CN1492059A Strong magnetic field quick complete annealing process for medium carbon low alloy structure steel |
| 04/28/2004 | CN1147609C Hot rolled steel plate excellent in strain aging hardening properties and its producing method |
| 04/28/2004 | CN1147593C Method for quenching workpieces with reduced gear deformation |
| 04/22/2004 | WO2004033731A1 Heat treatment method for metal parts |
| 04/22/2004 | WO2004033126A1 Press-hardened part and method for the production thereof |
| 04/22/2004 | US20040076256 Production method for a nuclear fuel assembly support grid and a nuclear fuel assembly support grid produced by the same |
| 04/22/2004 | US20040074572 Method and device for hardening a metal component by plasma pulse technology |
| 04/22/2004 | US20040074092 Production of a cylindrical housing for a double screw extruder |