Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654)
02/1985
02/26/1985US4501626 High strength steel plate and method for manufacturing same
02/19/1985US4500771 Apparatus and process for laser treating sheet material
02/19/1985US4500366 High speed multistage recrystallization annealing
02/19/1985CA1182721A1 Method of producing steel having high strength and toughness
02/12/1985US4498936 Containing aluminum silicates, aluminum and magnesium oxide and phosphoric acid
02/12/1985CA1182387A1 Method for producing high-strength deep drawable dual phase steel sheets
01/1985
01/31/1985WO1985000383A1 Steel plated with molten aluminum excellent in high-temperature oxidation resistance and high-temperature strength and process fo r its production
01/30/1985EP0132365A2 Process of making aluminum killed low manganese deep drawing steel
01/23/1985EP0132252A1 Method of manufacturing rolled wire having a good cold workability
01/23/1985EP0132249A2 Process and device to produce concrete reinforcement bars on a high speed wire mill
01/23/1985EP0131651A1 Process and installation for making very high alloy deformed steels and special alloys
01/22/1985US4494999 Process for making fine-grain weldable steel sheet for large-diameter pipes
01/15/1985US4493739 Process for producing a grain-oriented electromagnetic steel sheet or strip having a low watt loss and a grain-oriented electromagnetic steel strip having uniform magnetic properties
01/09/1985EP0130674A2 Process for producing cube-on-edge oriented electromagnetic silicon steel
01/09/1985EP0130221A1 Process for producing corrosion-resistant alloy steel
12/1984
12/27/1984CA1179925A Process for production of oriented silicon steel
12/19/1984EP0128139A1 High strength, low carbon, dual phase steel rods and wires and process for making same
11/1984
11/28/1984EP0126481A2 Method and apparatus for direct heat treatment of medium- to high-carbon steel rods
11/27/1984US4484956 Hot rolling, annealing
11/27/1984CA1178517A1 Ferrous materials
11/21/1984EP0125653A1 Process for producing a grain-oriented electrical steel sheet
11/20/1984US4483723 Strips containing aluminum; silicon, manganese
11/20/1984US4483722 Low alloy cold-worked martensitic steel
11/20/1984CA1178182A1 Process for preparing aluminum-plated steel sheets having low yield strength and high oxidation resistance
11/14/1984EP0124964A1 Process for producing grain-oriented silicon steel
11/13/1984US4482401 Method for producing cube-on-edge oriented silicon steel
11/13/1984US4482397 Method for improving the magnetic permeability of grain oriented silicon steel
11/07/1984EP0124354A1 A method of manufacturing a shadow mask for a colour cathode ray tube
11/06/1984CA1177370A1 Manufacture of rolled steel easy to weld, highly stretch resistant and very bendable in the cold state
11/06/1984CA1177369A1 Process for the improved heat treatment of steels using direct electrical resistance heating
11/06/1984CA1177289A1 High-alloyed steel being resistive to corrosion by natural gas
10/1984
10/31/1984EP0123406A2 Low alloy steel plate and process for production thereof
10/31/1984EP0123054A1 Stainless chromium steel and process for the manufacture thereof
10/30/1984CA1176961A1 Superalloy properties through stress modified gamma prime morphology
10/23/1984US4478653 Process for producing grain-oriented silicon steel
10/23/1984US4478649 Method for producing a cold-rolled steel sheet having excellent formability
10/17/1984EP0121630A2 Improved austenitic stainless steel alloys for high temperature applications
10/10/1984EP0120976A1 Process for manufacturing cold-rolled steel for deep drawing
10/09/1984US4475961 High remanence iron-manganese alloys for magnetically actuated devices
10/03/1984EP0024437B1 Process for producing non-aging cold-rolled steel sheets
10/02/1984US4474627 Hot rolling
09/1984
09/25/1984US4473416 Process for producing aluminum-bearing grain-oriented silicon steel strip
09/25/1984US4473414 High tensile strength cold rolled steel sheets and high tensile strength hot-dip galvanized steel sheets
09/25/1984US4473411 Process of making aluminum killed low manganese deep drawing steel
09/19/1984EP0119186A2 Method of manufacturing turbine blades
09/19/1984EP0119088A1 Steel for use as material of cold-rolled steel sheet
09/18/1984US4472208 Hot-rolled high tensile titanium steel plates and production thereof
09/18/1984US4472207 Method for manufacturing blank material suitable for oil drilling non-magnetic stabilizer
09/11/1984US4470188 Method of mechanically prestressing a tubular apparatus
09/04/1984US4469533 Method of producing grain oriented silicon steel sheets or strips having high magnetic induction and low iron loss
09/04/1984CA1173729A1 Process for manufacturing ferritic stainless steel sheet having good formability, surface appearance and corrosion resistance
08/1984
08/28/1984US4468551 Laser treatment of electrical steel and optical scanning assembly therefor
08/21/1984US4466842 Purity-dynamic transformation of crystal structure
07/1984
07/31/1984US4462844 Cold working surface, heating to recrystallize; hot extrusion
07/31/1984CA1171766A1 Process for production of coil of hot rolled strip of austenitic stainless steel
07/24/1984CA1171306A1 Magnetic elements for magnetically actuated devices and processes for their production
07/05/1984WO1984002535A1 Process for producing corrosion-resistant alloy steel
07/04/1984EP0048761B1 High-tensile, cold-rolled steel plate with excellent formability and process for its production, as well as high-tensile, galvanized steel plate with excellent formability, and process for its production
07/03/1984CA1170151A1 Method of making high-strength, high-toughness steel with good workability
06/1984
06/27/1984EP0112027A1 A method of manufacturing cold rolled steel sheets for extra deep drawing with an excellent press formability
06/26/1984US4456812 Laser treatment of electrical steel
06/21/1984WO1984002354A1 High strength, low carbon, dual phase steel rods and wires and process for making same
06/12/1984CA1168964A1 Method of producing silicon-iron sheet material with annealing atmospheres of nitrogen and hydrogen
05/1984
05/29/1984US4450948 Apparatus for supplying headed parts
05/16/1984EP0108575A2 Local annealing treatment for cube-on-edge grain oriented silicon steel
05/16/1984EP0108574A1 Radio frequency induction heating device
05/16/1984EP0108573A2 Local heat treatment of electrical steel
05/16/1984EP0108268A1 Method for the production of cold rolled steel sheet having super deep drawability
05/15/1984US4448613 Heating, cooling, deforming and soaking
05/01/1984US4445946 High strength cold rolled steel strip having an excellent deep drawability
04/1984
04/26/1984WO1984001586A1 Process and installation for the treatment of cylindrical products, particularly armouring bars by hardening and drawing temper
04/26/1984WO1984001585A1 Process for manufacturing cold-rolled steel for deep drawing
04/24/1984US4444602 Method of manufacturing amorphous magnetic alloy ribbon and use for magnetostriction delay lines
04/17/1984US4443272 Casting, hot rolling, annealing, carbon, manganese, phosphorus, aluminum, nitrogen, boron
04/10/1984US4441936 High-strength, low-yield-point, cold-rolled steel sheet or strip suitable for deep drawing
03/1984
03/27/1984US4439252 Method of producing grain-oriented silicon steel sheets having excellent magnetic properties
03/27/1984US4439251 Non-oriented electric iron sheet and method for producing the same
03/27/1984CA1164320A1 Processing for cube-on-edge oriented silicon steel
03/21/1984EP0103439A1 Methods of prestressing and methods of manufacturing tubular apparatus
03/20/1984US4437910 Secondary recrystallization
03/20/1984US4437909 Process for producing a grain-oriented silicon steel sheet or strip having excellent magnetic properties
03/20/1984US4437903 Method for producing two-phase hot rolled steel sheet having high strength and low yield ratio
03/20/1984US4437902 Batch-annealed dual-phase steel
03/20/1984US4437900 Thermal mechanical treatment for enhancing high temperature properties of cast austenitic steel structures
03/14/1984EP0102732A2 Laser treatment of electrical steel and optical scanning assembly thereof
03/13/1984US4436561 Press-formable high strength dual phase structure cold rolled steel sheet and process for producing the same
03/07/1984EP0101740A1 Process for manufacturing cold-rolled steel having excellent press moldability
03/06/1984US4435231 Precipitation hardening; for nuclear reactors
03/06/1984CA1163213A1 Manufacture of electrically welded steel pipe
02/1984
02/28/1984CA1162826A1 Method for the manufacture of steel suitable for electric-welded tubular products having superior resistance to sour gas
02/22/1984EP0101321A2 Method of producing grain oriented silicon steel sheets or strips having high magnetic induction and low iron loss
02/22/1984EP0101097A1 Process for manufacturing work-hardened metallic workpieces by forging or pressing
02/15/1984EP0100638A2 Laser treatment of electrical steel
02/01/1984EP0099619A2 Method for producing cube-on-edge oriented silicon steel
02/01/1984EP0099618A2 Method for producing cube-on-edge oriented silicon steel
02/01/1984EP0099617A2 Method for producing cube-on-edge oriented silicon steel
02/01/1984EP0099520A2 Method and apparatus for thermomechanically rolling hot strip product to a controlled microstructure
02/01/1984EP0099515A1 Amorphous press formed sections
01/1984
01/24/1984US4427460 Decarburizing low carbon steel
01/18/1984EP0098564A1 Process for producing fine-grained, weldable plates for large pipes