Patents
Sitemap › C21 - Metallurgy of iron › C21D - Modifying the physical structure of ferrous metals; General devices for heat treatment of ferrous or non-ferrous metals or alloys; Making metal malleable by decarburisation, tempering, or other treatments › C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor
Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082)
04/2003
04/15/2003US6547897 Immersing rail head at temperature of above 720 degrees C in cooling agent that contains synthetic additive, withdrawing rail head from cooling agent upon obtaining surface temperature of rail head of 450-550 degrees C
04/15/2003US6547890 Steel wire rod for cold forging and method for producing the same
04/15/2003US6547442 Rolling bearing
04/10/2003WO2003028912A2 Method and system for thermal treatment of rails
04/10/2003US20030068521 Steel plate and a hot dip galvanizing steel plate having superior electric and magnetic shielding property
04/10/2003US20030067376 Inductor for heating inner-circumference of hole
04/10/2003US20030066582 Hot forming using press mold, hardening; calibration shapes
04/10/2003US20030066581 Hot forming using press mold, hardening; calibration shapes
04/10/2003US20030066576 Quenched and tempered steel wire with excellent cold forging properties
04/10/2003US20030066575 High-strength steel wire excelling in resistance to strain aging embrittlement and longitudinal cracking, and method for production thereof
04/09/2003EP1300484A1 Method for the heat treatmant of metallic slugs
04/09/2003EP1300478A1 Process and device for accelerated cooling in a continuous annealing line
04/09/2003EP1300477A1 Continuous annealing process for obtaining an improved surface appearance
04/09/2003EP1300476A2 Process for manufacturing a hardened sheet metal profile
04/09/2003EP1300475A2 Process for manufacturing a hardened sheet metal profile
04/09/2003EP1299569A1 Ferritic stainless steel for ferromagnetic parts
04/09/2003EP1299568A1 Fe-ni or fe-ni-co or fe-ni-co-cu alloy strip with improved cuttability
04/09/2003CN1105286C Safety system for rapid-cooling ovens for metal strip
04/09/2003CN1105190C Method and apparatus for heat treating steel
04/08/2003US6544360 Highly strengthened spring and process for producing the same
04/08/2003US6544355 Continuous casting, forming; uniformity
04/03/2003WO2003027338A1 Support for wire coils to be heat-treated in bell-type furnaces
04/03/2003WO2003027336A1 Jig for heat treatment of work
04/03/2003WO2003026813A1 Method and device for cooling steel sheet
04/03/2003US20030061904 Sintered sprocket
04/03/2003DE10141645C1 Apparatus for hardening bearing surfaces of rotating crankshaft has inductors for heating surfaces, monitor detecting angle of rotation of shaft feeding signals to control unit which raises or lowers inductors
04/02/2003EP1296843A2 Vehicle structural beam and method of manufacture
04/02/2003EP1296798A1 Method and apparatus for flexible manufacturing a discrete curved product from feed stock
04/02/2003CN1408028A Method of heating metal strip and apparatus thereof
04/02/2003CN1104509C High-strength, high-toughness stainless steel excellent in resistance to delayed fracture
04/01/2003US6540847 Rolling structure steel
04/01/2003US6540846 High-strength hot-rolled steel sheet superior in stretch-flanging performance and fatigue resistance and method for production thereof
04/01/2003US6540011 Method to control the axial position of slabs emerging from continuous casting and relative device
03/2003
03/27/2003WO2003025241A1 Hot-rolled steel sheet with good ultra low temperature toughness and the method of the same
03/27/2003WO2003025233A1 Steel parts and method for heat-treating steel parts
03/27/2003WO2003025232A1 Method for producing a metal strip from an iron-nickel alloy for tensioned shadow masks
03/27/2003WO2002075000A3 Modular shaft for reduction smelting
03/27/2003US20030059643 High strength steel plate having superior electric and magnetic shielding property, and method making the same
03/27/2003US20030056862 Welding method, filler metal composition and article made therefrom
03/27/2003DE10208216C1 Production of a hardened metallic component used as vehicle component comprises heating a plate or a pre-molded component to an austenitizing temperature, and feeding via a transport path while quenching parts of plate or component
03/26/2003EP1149178B1 Strip guiding device comprising a rotatable construction for changing supporting rolls having cooling means
03/26/2003EP0941372B1 Oxidation-resistant metal foil and its use
03/26/2003CN2541468Y Wire heat treating and straighting combined processing appts.
03/26/2003CN1405352A Cold-rolled steel plate and galvanized steel plate with exceuent forming property, surface shaping property and anti-rabbing and manufacture method thereof
03/26/2003CN1405350A High-strength steel wire with anti-strain-ageing-brittle and anti-longitudinal-crack and manufacture method thereof
03/26/2003CN1405335A Modified wire material with good cold-forging characteristic
03/26/2003CN1103829C Steel band for pots and its manufacture method
03/26/2003CN1103824C Method for producing cold-rolled bands or sheets
03/26/2003CN1103652C Thickened and reinforced structure of hollow column section and manufacture method therefor
03/26/2003CN1103647C Method and arrangement for producing hot-rolled strip
03/25/2003US6537398 Method for manufacturing of strips of stainless steel and integrated rolling mill line
03/25/2003US6537396 Cryogenic processing of springs and high cycle rate items
03/25/2003US6537391 Steel with improved impact penetration resistance and method for producing the same
03/25/2003US6537374 Method and system for cooling strip material
03/25/2003US6536110 Providing a hub section formed from a metal alloy; welding an airfoil formed from a metal alloy to hub section; solution treating, heating, oil quenching prior to welding
03/20/2003WO2003023076A2 Device for quenching and tempering long-length rolling stock
03/20/2003US20030052123 Placing a non-magnetic conductive shield in proximity to a current concentrating surface of a gear and exposing the gear with a shield in place to a time varying magnetic field; shield protects the gear from overheating
03/20/2003US20030051771 Process for producing inner race for constant velocity joint having improved workability and strength
03/19/2003EP1293582A2 High-strength steel wire excelling in resistance to strain aging embrittlement and longitudinal cracking, and method for production thereof
03/19/2003EP1293578A2 Quenched and tempered steel wire with excellent cold forging properties
03/19/2003EP1293577A2 Induction processing with the aid of a conductive shield
03/19/2003EP1293269A1 Device and method for manufacturing soft metal tube
03/19/2003CN1404420A Method and device for manufacturing a hot rolled steel strip
03/19/2003CN1403600A Heat treatment process for LD steel powder metallurgy die in complicated shape
03/19/2003CN1403599A Heat treating process and inductor for key surface of hub
03/18/2003US6533996 Cooling atmosphere comprising hydrogen is used for accelerated cooling of processed metal part in furnace, resulting in improved properties for metal part
03/14/2003CA2357452A1 Steel strapping
03/13/2003WO2003021174A1 Method of improving the temperature profile of a furnace
03/13/2003US20030047852 Device for tempering rolled stock of great length
03/13/2003US20030047642 Device for guiding a metal strip on a gas cushion
03/13/2003US20030047587 Welding processes for iron-base ultra fine grained materials and structural components manufactured by the processes
03/13/2003US20030047257 Cold-rolled steel sheet having excellent strain aging hardening properties and method for producing the same
03/13/2003US20030047256 High tensile cold-rolled steel sheet having excellent strain aging hardening properties
03/13/2003US20030047255 Process for the hot-dip galvanizing of metal strip made of high-strength steel
03/13/2003US20030047242 Hot forging the steel; machining and optionally piercing the forged product; carburizing and quenching and tempering the machined steel to attain an effective case depth of 0.4 to 0.9 mm
03/13/2003DE20218100U1 Support ring permitting limited relative movement of cylindrical heat treatment hood, has circumferential, radially-orientated holder and sleeve attachments
03/12/2003EP1291451A1 Electrical sheet having insulating coating and insulating coating
03/12/2003EP1291448A1 Cold rolled steel sheet and galvanized steel sheet having strain aging hardening property and method for producing the same
03/12/2003EP1291447A1 Cold-rolled steel sheet having excellent strain aging hardening properties and method for producing the same
03/12/2003EP1290236A1 Welding method, filler metal composition and article made therefrom
03/12/2003CN1402798A Martensitic stainless steel and steelmaking process
03/12/2003CN1401796A Bimetal saw band and hard alloy ultra-low temp. treatment process
03/12/2003CN1401457A Method for laser compound treating surface of friction pair
03/11/2003US6531007 Method for the manufacture of steel products of a precipitation hardened martensitic steel, steel products obtained with such method and use of said steel products
03/11/2003US6531005 Heat treatment of weld repaired gas turbine engine components
03/11/2003US6531000 Surface treated rolling bearing and manufacturing method thereof
03/06/2003WO2003018858A1 An ultra high strength steel composition, the process of production of an ultra high strength steel product and the product obtained
03/06/2003WO2003018857A1 Steel plate exhibiting excellent workability and method for producing the same
03/06/2003WO2003018856A2 Nanocarbide precipitation strengthened ultrahigh-strength, corrosion resistant, structural steels
03/06/2003US20030044304 High strength, oxidation resistance steel; valves for internal combustion engines
03/06/2003US20030041933 Method for making a multiphase hot-rolled steel strip
03/05/2003EP1288322A1 An ultra high strength steel composition, the process of production of an ultra high strength steel product and the product obtained
03/05/2003EP1287171A1 Hardened fe-ni alloy for making integrated circuit grids and method for making same
03/05/2003CN2538809Y Continuous induction heat treater for fine rolled screw reinforcing bar
03/05/2003CN1401212A High strength steel plate having superior electric and magnetic shielding property and method for producing same
03/05/2003CN1401069A Means and method for heating
03/05/2003CN1400959A Powders which have an antibacterial and a far infrared ray radiating property and a bio-wave steel plate which is coated with resin containing the same
03/05/2003CN1400067A Thickwall composite component spinning production process
03/05/2003CN1102663C Box-type annealing furnace and metal-board annealing method using same, and annealed metal board thereof
02/2003
02/27/2003US20030040401 Toroidal continuously variable transmission and manufacturing method thereof
1 ... 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 ... 301