| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 04/22/2004 | DE10247372A1 Production of a hardened steel component comprises forming a semi-finished product made from air-hardened steel, cold forming the product to form the finished molded component, and hardening the component by heat treating |
| 04/22/2004 | DE10247301A1 Deep drawing of metal plates, for vehicle components, inserts a heated plate at annealing temperature between the upper and lower dies, to be pressed and the base embossed and be cooled within the press |
| 04/22/2004 | CA2445910A1 Method of processing nonferrous metal alloy and processing apparatus thereof |
| 04/21/2004 | EP1204770B8 Method for making a continuous steel strip |
| 04/21/2004 | CN1491286A High-hardness, highly ductile ferrous articles |
| 04/21/2004 | CN1490113A Process method for laser enhanced membrane spring terminals |
| 04/21/2004 | CN1146672C Super high tensile cold-rolled steel plate and method for production thereof |
| 04/21/2004 | CN1146479C Method and plant for manufacture of strip of formable steel |
| 04/20/2004 | US6723947 Laser beam hardening device |
| 04/20/2004 | US6723240 Sludge removing device |
| 04/20/2004 | US6723188 Steel workpiece oil quenching method |
| 04/20/2004 | US6723175 Formed member made of steel sheet and method for producing same |
| 04/20/2004 | US6723020 Planetary carrier and method of manufacture |
| 04/15/2004 | WO2004031434A1 Surface-carbonitrided stainless steel parts excellent in wear resistance and method for their manufacture |
| 04/15/2004 | WO2004031428A1 Steel composition and parts forged by a forging die |
| 04/15/2004 | WO2004031419A1 Graphite and nitrogen-free cast alloys |
| 04/15/2004 | WO2004031418A2 Method for manufacturing products by means of deformation at increased temperatures |
| 04/15/2004 | WO2004001096A3 Method for surface treatment of sheets and strips of aluminium alloy |
| 04/15/2004 | US20040071584 Spheroidal cast iron particularly for piston rings and method for obtaining a spheroidal cast iron |
| 04/15/2004 | US20040069773 Induction heating system having eccentric locator |
| 04/15/2004 | US20040069378 Containing 7-30 ppm by weight boron and 10-70 ppm by weight nitrogen, contained as a Fe(B,N) solid solution that may contain C |
| 04/15/2004 | DE10295854T5 Vorrichtung zur Wärmebehandlung und hydraulischen Förderung von Walzgut Apparatus for heat treating and hydraulic conveying of rolling |
| 04/15/2004 | DE10295850T5 Druckdüse Pressure nozzle |
| 04/15/2004 | DE10254695B3 Production of a metallic component, especially a vehicle body component, from a semifinished product made of non-hardened heat-deformable sheet steel comprises cold-forming, trimming, hot-forming and press-hardening processes |
| 04/15/2004 | DE10246164A1 Making e.g. vehicle structural components with wall thickness varied by rolling, shapes and hardens components through combination of heat- and mechanical treatments |
| 04/15/2004 | DE10196814T5 Induktionshärtungsspule für eine Kurbelwelle Induction hardening coil for a crankshaft |
| 04/14/2004 | EP1408131A1 Steel composition and forged workpieces made thereof |
| 04/14/2004 | EP1408126A2 Continuous heat treatment furnace |
| 04/14/2004 | EP1407462A2 Method for producing nanocrystalline magnet cores, and device for carrying out said method |
| 04/14/2004 | EP1047798A4 Ultra-high strength ausaged steels with excellent cryogenic temperature toughness |
| 04/14/2004 | EP1040205A4 Ultra-high strength dual phase steels with excellent cryogenic temperature toughness |
| 04/14/2004 | CN2611387Y Vacuum annealer |
| 04/14/2004 | CN1489497A Method for altering profile of roller strip |
| 04/13/2004 | US6719854 Improved quiet |
| 04/13/2004 | CA2254654C Method for water-cooling slabs and cooling water vessel |
| 04/08/2004 | WO2004029314A1 Machine part and method for manufacturing same |
| 04/08/2004 | WO2004029305A1 Cooling device for steel strip |
| 04/08/2004 | WO2004029304A1 Cu-CONTAINING STEEL PRODUCT OF EXCELLENT SURFACE PROPERTY AND PROCESS FOR PRODUCING THE SAME |
| 04/08/2004 | WO2004028731A1 Workpiece structure modification |
| 04/08/2004 | DE10307184B3 Production of hardened components used as aluminum vehicle parts comprises heating a metal sheet plate to a hardening temperature, hot deforming, configuring into a final shape, and hardening |
| 04/08/2004 | DE10258531B3 Production of a steel with a corrosion protection coating used in the production of an automobile chassis comprises annealing the steel, treating the surface of the steel using high energy, and coating the surface of the steel |
| 04/08/2004 | DE10243179A1 Case hardening steel used in the manufacture of workpieces e.g. for the construction of vehicles contains alloying additions of chromium, niobium and titanium |
| 04/08/2004 | DE10152293B4 Verwendung einer Chrom-Stahllegierung Using a chromium steel alloy |
| 04/07/2004 | EP1405931A2 Heat-resisting cast steel |
| 04/07/2004 | EP1405926A1 Induction hardening device, especially for manufacturing suspension elements |
| 04/07/2004 | EP1404882A1 Method and device for quenching steel in pressurized air |
| 04/07/2004 | EP0957968B1 High performance wires for use as catheter guidewires and method of making them |
| 04/07/2004 | CN1144892C Steel plate with Tin+Cus precipitate used for welded structure, producing method thereof and produced welded structure with the same |
| 04/07/2004 | CN1144885C Rolling bearing steel with lower baintic structural surface and method for producing thereof |
| 04/07/2004 | CN1144632C Apparatus and method for inhibiting gowth of oxidation film on coiled stock |
| 04/06/2004 | US6716291 Castable martensitic mold alloy and method of making same |
| 04/06/2004 | CA2315086C Ultra-high strength dual phase steels with excellent cryogenic temperature toughness |
| 04/01/2004 | WO2004027098A1 Rapid cooling method for parts by convective and radiative transfer |
| 04/01/2004 | WO2003086020A3 Improvements to heating inductors, in particular of metal strips |
| 04/01/2004 | US20040061265 Rapid cooling device for steel band in continuous annealing equipment |
| 04/01/2004 | US20040060623 Heating to austenization temperature and quenching of the region of greater ductility to between the martensite start and the ferritic or perlitic start temperatures; lower ductility region is heated to form martensite; hardening |
| 04/01/2004 | US20040060622 Especially strengthened by precipitation hardening of (Ni3(Al,Ti)), (Ni3(Nb,Al,Ti)), (Ni3Nb) or MO2C; specially adapted for gas turbine or internal combustion engine exhaust system parts |
| 04/01/2004 | US20040060621 Ultra-fine oxide particles (TiO2, Y2O3) having a diameter of not larger than 1 micron are formed in and/or around the interface between the steel base and the oxide film formed, increasing adhesion; good steam oxidation- resistance |
| 04/01/2004 | US20040060619 Hot rolled for use in coil springs or the like and assumes, in cross section, a modified shape such as a square shape, a rectangular shape or a nearly trapezoidal shape. |
| 04/01/2004 | DE10303980B3 Process for quenching a cast piece, e.g. an engine cylinder head, comprises placing the cast piece in a sink and positioning facing the sink floor without contact, immersing the sink in a cooling medium, and further processing |
| 03/31/2004 | EP1403388A1 Process for making products by high temperature deformation |
| 03/31/2004 | EP1402965A1 HEAT−TREATED DEFORMED STEEL WIRE, AND METHOD AND APPARATUS FOR MANUFACTURING THE SAME |
| 03/31/2004 | CN1143902C Powder metallurgy manufactured high speed steel |
| 03/30/2004 | US6713716 Reduced mist laser shock peening |
| 03/30/2004 | CA2359895C Method and apparatus for the destruction of suspected terrorist weapons by detonation in a contained environment |
| 03/25/2004 | WO2004024959A1 Atmosphere control during continuous heat treatment of metal strips |
| 03/25/2004 | WO2003085396A3 Device and method for controlling the composition of a gaseous atmosphere |
| 03/25/2004 | US20040055672 Cold rolled steel sheet and galvanized steel sheet having strain age hardenability and method of producing the same |
| 03/25/2004 | US20040055670 Hot forming tool steels; hardening, depassivation before nitriding |
| 03/25/2004 | US20040055666 Multilayer; high strength, toughness, aging resistance |
| 03/24/2004 | EP1400606A1 Method of carburizing a bearing steel to produce a roller member |
| 03/24/2004 | EP1400603A1 Crawler bushing and method and device for producing the same |
| 03/24/2004 | EP0804623B1 Method for producing carbide-free bainitic steels |
| 03/24/2004 | CN2607377Y Working condition analogue apparatus for continuous annealing furnace roller |
| 03/24/2004 | CN1484713A Oil removing device for cleaning pipes that are present in the form of coils |
| 03/24/2004 | CN1484472A High frequency inductive heating coil |
| 03/24/2004 | CN1483854A Method and apparatus for blackening component |
| 03/24/2004 | CN1483840A Heat treatment technoloyical method for forge piece |
| 03/23/2004 | US6709534 Nano-composite martensitic steels |
| 03/18/2004 | WO2004022816A1 Method for controlling the microstructure of a laser metal formed hard layer |
| 03/18/2004 | WO2004022794A1 Method for producing steel with retained austenite |
| 03/18/2004 | WO2004022792A2 Austempered cast iron article and a method of making the same |
| 03/18/2004 | US20040050465 Using a hot gas stream of 20% by volume of hydrogen, cooling and compressing the hot gas stream, removing the heat of compression, and cause the gas to impinge through a nozzle on the hot metal; replaces oils and avoids washing/cleaning |
| 03/18/2004 | US20040050461 Cold rolled steel sheet and galvanized steel sheet having strain age hardenability and method of producing the same |
| 03/18/2004 | US20040050459 Alloys having corrosion resistance and hardness used as tools |
| 03/17/2004 | EP1397522A1 Roller table roll, particularly for conveying furnace-heated metallic strip material |
| 03/17/2004 | EP1021572B1 Hot rolling high-strength steel structural members |
| 03/17/2004 | CN2606747Y Horizontal induction quenching driving device |
| 03/16/2004 | CA2308500C Method and apparatus for controlling heat transfer from solid particles in a fluidized bed |
| 03/11/2004 | WO2003038133A3 Apparatus and method for transferring heat treated parts |
| 03/11/2004 | US20040048676 Rolling bearing ring of constant velocity joint, and support component for rolling and swinging motion |
| 03/11/2004 | US20040048218 Multi-layer heat treatment furnance, heat treatment device and heat treating method |
| 03/11/2004 | US20040048217 Process for producing steel products having improved grain size properties and machinability |
| 03/11/2004 | US20040048134 Low-contact-resistance interface structure between separator and carbon material for fuel cell, separator and carbon material used therein, and production method for stainless steel separator for fuel cell |
| 03/11/2004 | US20040047757 High-hardness, high-toughness steels and crawler components, earth wear resistant components, fastening bolts, high-toughness gears, high-toughness, high contact pressure resistance gears, and wear resistant steel plates using the same |
| 03/11/2004 | US20040047089 A transducing head includes a first bias element, a second bias element, and a magnetoresistive sensor positioned between the first bias element and the second bias element. The first bias element and the second bias element are each formed of a |
| 03/11/2004 | US20040045646 Method and device for annealing tubes |
| 03/11/2004 | DE10238972A1 Verfahren und Vorrichtung zur Durchlaufvergütung von Bandstahl und entsprechend hergestellter Bandstahl Method and apparatus for continuous quenching and tempering of steel strip and correspondingly produced steel strip |
| 03/10/2004 | EP1396556A1 Method for controlling the microstructure of a laser metal formed hard layer |
| 03/10/2004 | CN1481445A Process for prodn. of grain oriented electrical steel strips |