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 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment
Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654)
01/1982
01/12/1982US4309886 Process for producing steel strip material for use in manufacture of shadow mask of Braun tube for color TV
01/12/1982CA1116056A1 Process for producing a grain-oriented silicon steel sheet
01/05/1982US4309228 Electro magnetic steels
12/1981
12/22/1981US4306922 Electro magnetic steels
12/15/1981US4306172 Shadow mask of braun tube for color TV and process for manufacturing the same
12/09/1981EP0041354A1 Method for producing cold rolled steel sheets having a noticeably excellent formability
12/01/1981CA1113353A1 Method of manufacturing high strength low alloys steel plates with superior low temperature toughness
11/1981
11/25/1981EP0040553A1 Process for producing a dual-phase steel
11/24/1981US4302257 Process for producing a grain-oriented silicon steel sheet
11/24/1981US4302256 Autoclaving, age-hardening
11/03/1981US4298406 Manufacture of steel products
10/1981
10/27/1981US4296919 Apparatus for continuously producing a high strength dual-phase steel strip or sheet
10/27/1981US4296512 Method for making fasteners
10/20/1981CA1110822A1 Continuous casting
10/15/1981WO1981002900A1 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 produciton
10/13/1981US4294098 Apparatus for manufacturing steel spring leaves
10/06/1981US4293350 Grain-oriented electromagnetic steel sheet with improved watt loss
09/1981
09/30/1981EP0036726A1 Method of producing silicon-iron sheet material with annealing atmospheres of nitrogen and hydrogen
09/29/1981US4292097 High tensile strength steel sheets having high press-formability and a process for producing the same
09/29/1981US4291558 Process of rolling iron-silicon strip material
09/29/1981CA1109772A1 Process of producing an electrically insulative glass film on silicon steel
09/22/1981US4290827 Annealing, tempering in magnetic cross-field
09/22/1981CA1109371A1 Continuous heat-treatment process for steel-strip
09/15/1981US4289548 High strength cold finished bars
09/01/1981US4287006 Said separator being a mixture of magnesium oxide, magnesium hydroxide, and an aluminum compound
08/1981
08/25/1981US4285741 Process for producing high-strength, low yield ratio and high ductility dual-phase structure steel sheets
08/19/1981EP0033878A2 Method for treating an electromagnetic steel sheet by laser-beam irradiation
08/18/1981US4284439 Process for the production of sheet and strip from ferritic, stabilized, stainless chromium-molybdenum-nickel steels
08/18/1981US4284438 Manufacture of steel products
08/18/1981CA1107179A1 Method for making a hard steel elongated element
08/12/1981EP0033600A2 Process for producing a steel with dual-phase structure
08/04/1981US4281429 Method for making fasteners
07/1981
07/28/1981US4280856 Antimony and selenium or sulfur added as crystal growth inhibitors
07/28/1981CA1105813A1 Method for producing a steel sheet having remarkably excellent toughness at low temperatures
07/08/1981EP0031399A2 Material for the production of stainless Alpine ski edges
06/1981
06/23/1981CA1103567A1 Method of producing non-oriented silicon steel sheets having an excellent electromagnetic property
06/17/1981EP0030309A2 Hot rolled strip or plate of denitrided steel and process for its production
06/09/1981US4271571 Process for manufacturing shadow mask of Braun tube for color TV
06/09/1981CA1102588A1 Steel wire manufacture
05/1981
05/26/1981US4269634 Loss reduction in oriented iron-base alloys containing sulfur
05/20/1981EP0028985A1 A method for making fasteners by drawing a cold wire or rod
05/20/1981EP0028984A1 A method for making fasteners by extruding a portion of a cooled slug
05/19/1981US4268326 Two-stage decarburization, specific water and hydrogen partial pressures
05/05/1981US4265683 Development of grain-oriented iron sheet for electrical apparatus
05/05/1981US4265679 Process for producing stainless steels for spring having a high strength and an excellent fatigue resistance
05/05/1981US4265678 Metal wire cord
03/1981
03/31/1981US4259126 Nickel, chromium, titanium, aluminum, iron, and impurities
03/31/1981CA1098426A1 Electromagnetic silicon steel from thin castings
03/11/1981EP0024437A1 Process for producing non-aging cold-rolled steel sheets
03/10/1981US4255215 Oriented low-alloy iron containing critical amounts of silicon and chromium
03/10/1981US4255205 Method of producing grain-oriented silicon steel sheets having substantially no glass film
02/1981
02/17/1981US4251296 Method of preparing an oriented-low-alloy iron from an ingot of controlled sulfur, manganese and oxygen contents
02/17/1981US4251295 Annealing to remove sulfer
02/17/1981US4251294 Method for producing fully-processed low-carbon electrical steel
02/17/1981CA1095856A1 Method for providing strong wire
01/1981
01/20/1981CA1094018A1 Method of manufacturing high pressure fuel injection pipe materials
01/13/1981US4244757 Processing for cube-on-edge oriented silicon steel
01/07/1981EP0020844A1 Improvement in the manufacture of oriented grain electrical steel sheet
01/06/1981CA1092861A1 Steels combining toughness and machinability
12/1980
12/30/1980US4242155 Method of forming an insulating film on a grain-oriented silicon steel sheet
12/30/1980US4242153 Methods for hot rolling and treating rod
12/30/1980US4242150 Method of producing reinforcing bars with corrosion resistant coating
12/23/1980CA1091959A1 Heat treatment for improving the toughness of high manganese steels
12/16/1980CA1091482A1 Process and apparatus for sequentially forming and treating steel rod
12/02/1980US4236986 Decarbonization, electrodeposition, coiling
11/1980
11/26/1980EP0019289A2 Process for producing grain-oriented silicon steel strip
11/26/1980EP0019193A1 A method of making steel strip with high strength and formability
11/04/1980US4231818 Methods of producing silicon steel strip
10/1980
10/29/1980EP0017830A1 Slab heating furnace
10/29/1980EP0017695A1 Process for improving the strength of a wire
10/21/1980CA1087965A1 Processing for cube-on-edge oriented silicon steel
10/15/1980EP0016846A1 Process for producing high-strength cold-rolled steel plate for press working
10/07/1980US4226918 Rubber adherent ternary Cu-Zn-Ni Alloy coated steel wires
10/01/1980EP0016131A1 RUBBER ADHERENT TERNARY Cu-Zn-Ni ALLOY COATED STEEL WIRES
09/1980
09/30/1980US4225366 Recrystallization annealing
09/30/1980US4225363 Method for heat treating iron-nickel-chromium alloy
09/23/1980CA1086194A1 Silicon steel and processing therefore
09/16/1980US4222257 Method of manufacturing rolled wire rod
09/04/1980WO1980001811A1 Process for producing non-aging cold-rolled steel plate
09/02/1980CA1084818A1 Silicon steel and processing therefore
09/02/1980CA1084817A1 Processing for cube-on-edge oriented silicon steel
08/1980
08/26/1980US4219371 Process for producing high-tension bainitic steel having high-toughness and excellent weldability
08/26/1980CA1084310A1 High tension steel sheet product
08/19/1980CA1083932A1 Process for strengthening of carbon steels
08/12/1980US4217150 Corrosion resistant austenitic steel
08/06/1980EP0014086A1 A method for the production of alloyed steel products and such products thereby obtained
08/05/1980CA1082952A1 Silicon steel and processing therefore
08/05/1980CA1082950A1 Dual-phase hot-rolled steel strip
07/1980
07/23/1980EP0013331A1 Method for making profiles and the use of a fine grained steel for profiles
07/22/1980US4213804 Processing for cube-on-edge oriented silicon steel
07/15/1980US4212689 Coating with forsterite, hot rolling, annealing, cold rolling, decarburization
07/08/1980CA1081097A1 Method and apparatus for forming high tensile steel from low and medium carbon steel
07/01/1980US4210467 Method of making a reinforcement for vehicle doors
07/01/1980CA1080517A1 Processing for high permeability silicon steel
06/1980
06/10/1980US4207123 Coatings for reduced losses in (110) [001] oriented silicon iron
06/10/1980CA1079163A1 Method of producing silicon-iron sheet material with boron addition, and product
05/1980
05/28/1980EP0011152A1 Thermal homogenization of steam generating tubing
05/27/1980US4204891 Method for preventing the edge crack in a grain oriented silicon steel sheet produced from a continuously cast steel slab
05/27/1980US4204890 Method of producing non-oriented silicon steel sheets having an excellent electromagnetic property
05/27/1980US4204885 Method for providing strong wire
1 ... 174 175 176 177 178 179 180 181 182 183 184 185 186 187