| Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654) |
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| 05/20/1992 | WO1992008817A1 High-strength ultrafine steel wire with excellent workability in stranding, and process and apparatus for producing the same |
| 05/20/1992 | EP0486008A1 Manufacturing thin wall steel cartridge cases |
| 05/20/1992 | EP0486007A1 Process for creating high strength tubing with isotropic mechanical properties |
| 05/19/1992 | US5114501 Stress relief annealing to effect a core loss value; smoothness |
| 05/16/1992 | CA2055409A1 Method of making tooth point and product |
| 05/14/1992 | WO1992007966A1 High-strength steel parts and method of making |
| 05/14/1992 | CA2055351A1 Process for creating high strength tubing with isotropic mechanical properties |
| 05/14/1992 | CA2055322A1 Two-pass drawing technique for creating high strength tubing |
| 05/14/1992 | CA2055239A1 Manufacturing thin wall steel cartridge cases |
| 05/13/1992 | EP0484960A2 Cold-rolled steel strip having excellent combined press formability and method of producing same |
| 05/13/1992 | EP0484904A2 Process for producing grain-oriented electrical steel sheet having improved magnetic and surface film properties |
| 05/07/1992 | DE4034734A1 Heat treatment of welded pipe seams - with utilisation of the heat produced by the welding process |
| 05/06/1992 | EP0484109A2 Method of producing grain-oriented silicon steel sheet having very high magnetic flux density |
| 04/28/1992 | US5108522 Method of making non-oriented electrical steel sheets having excellent magnetic properties under low magnetic field |
| 04/28/1992 | US5108521 Method of making non-oriented magnetic steel strips |
| 04/28/1992 | US5108518 Method of producing thin high carbon steel sheet which exhibits resistance to hydrogen embrittlement after heat treatment |
| 04/28/1992 | CA1299469C Method of reducing iron loss of grain oriented silicon steel sheet |
| 04/22/1992 | EP0481844A1 Steel with improved weldability |
| 04/22/1992 | EP0481575A2 Process for manufacturing weldable high-tensile steel sheets and use of these sheets |
| 04/22/1992 | EP0481481A1 Process for production of austenitic stainless steel thin cast strip and strip obtained thereby |
| 04/22/1992 | EP0481378A1 Process for producing high strength steel belt |
| 04/22/1992 | CN1016362B High-magnetism oriented silicon steel and production technology therefor |
| 04/21/1992 | US5106431 Process for creating high strength tubing with isotropic mechanical properties |
| 04/15/1992 | EP0480033A1 Pipe joint made of stainless steel and method of making the same |
| 04/09/1992 | DE4133323A1 Process for making round billet for steel tube production - useful for making tube for oil industry, etc., tubes thus produced have fewer internal cracks, flaws etc., economic |
| 04/08/1992 | EP0478771A1 Method for producing steel wires for the manufacture of flexible ducts, steel wires thereby obtained and flexible ducts reinforced therewith. |
| 04/07/1992 | US5102478 Hot rolling, soaking, coiling, annealing and cold rolling a steel containing carbon, silicon, manganese, sulfur, aluminum, phosphorous, niotrogen and iron |
| 04/07/1992 | US5102477 Casting form melt, cooling, cold rolling |
| 04/07/1992 | US5102472 Cold reduced non-aging deep drawing steel and method for producing |
| 04/01/1992 | EP0478041A1 Method of forming a magnetically-coded pattern in a permanent magnet material |
| 04/01/1992 | EP0477384A1 Process for producing unidirectional magnetic steel sheet excellent in magnetic characteristics |
| 03/25/1992 | EP0475962A1 Method and apparatus for making card clothing. |
| 03/25/1992 | EP0202336B1 Process for producing a thin plate of a high ferrosilicon alloy |
| 03/24/1992 | US5098491 Fish scale resistance, adhesion and resistance to blistering |
| 03/24/1992 | US5098489 Process for manufacturing high-strength parts of an automobile transmission system |
| 03/18/1992 | EP0475710A2 Method of manufacturing an oriented silicon steel sheet having improved magnetic characteristics |
| 03/18/1992 | EP0475096A1 High strength steel sheet adapted for press forming and method of producing the same |
| 03/18/1992 | EP0229846B1 Process for producing silicon steel sheet having soft magnetic characteristics |
| 03/18/1992 | EP0198084B1 Process for producing thin magnetic steel plate having high permeability |
| 03/17/1992 | US5096510 Thermal flattening semi-processed electrical steel |
| 03/11/1992 | EP0474530A1 Process for manufacturing products with very high tensile strength from unstable austenitic steel, and products obtained |
| 03/11/1992 | CN1059369A Production of silicon steel with proper structure of various sizes of crystal grains by use of pre-ageing method |
| 03/10/1992 | US5094920 Television picture tube inner shielding material having a blackened layer of superior adhesion and method of manufacturing the same |
| 03/10/1992 | US5094698 Warm forming |
| 03/10/1992 | CA1297070C Extra-low iron loss grain oriented silicon steel sheets |
| 03/03/1992 | US5092393 Process for producing cold-rolled strips and sheets of austenitic stainless steel |
| 02/25/1992 | US5091021 Directing energy in a pattern to heat a magnet, selectively magnetizing, cooling to generate detectable magnetic flux density |
| 02/19/1992 | EP0471608A1 Method of and installation for producing nonoxidizable half ferritic steel strips from liquid metal |
| 02/18/1992 | US5089062 Drilling of steel sheet |
| 02/18/1992 | US5089061 Chemical vapor deposition in an atmosphere containing silicon tetrachloride; diffusion treatment |
| 02/14/1992 | CA2048769A1 Process and device for making semi ferritic stainless steel strip |
| 02/05/1992 | EP0470055A2 Process for the production of fire-resistant structural steel |
| 02/05/1992 | EP0469980A1 Process for manufacturing grain non oriented magnetic steel sheet and sheet obtained thereby |
| 02/05/1992 | EP0469710A1 Method of manufacturing low-core-loss grain oriented electrical steel sheet |
| 02/04/1992 | US5085714 Method of manufacturing a steel sheet |
| 02/04/1992 | US5085411 Apparatus for processing grain-oriented electrical steel strip |
| 01/29/1992 | EP0468819A1 Method for manufacturing an oriented silicon steel sheet having improved magnetic flux density |
| 01/29/1992 | EP0468060A1 Process for producing steel wire for drawing |
| 01/29/1992 | EP0468059A1 Thin sheet of iron-nickel alloy for shadow mask and production thereof |
| 01/28/1992 | US5084116 Rolling contact element steel and rolling bearing made thereof |
| 01/28/1992 | US5084112 Titanium and vanadium carbonitrides formed by continuous proce ssing with casting or blooming, hot rolling, pickling and cold rolling and annealing |
| 01/28/1992 | US5084111 Iron-nickel alloy formed by melting a mixture of metals |
| 01/28/1992 | US5084109 Working a metal alloy, heat treatment and quenching with cryst allization |
| 01/22/1992 | EP0467384A2 Method of producing grain oriented silicon steel sheets each having a low watt loss |
| 01/22/1992 | EP0467265A1 Process for producing ultrahigh silicon electrical thin steel sheet by cold rolling |
| 01/21/1992 | US5082510 Electrical steel sheets, hot and cold rolling, annealing |
| 01/21/1992 | US5082509 Method of producing oriented electrical steel sheet having superior magnetic properties |
| 01/14/1992 | US5080727 Metallic material having ultra-fine grain structure and method for its manufacture |
| 01/14/1992 | US5080326 Method and apparatus for refining the domain structure of electrical steels by local hot deformation and product thereof |
| 01/10/1992 | WO1992000815A1 Process and plant for obtaining steel strip coils having cold-rolled characteristics and directly obtained in a hot-rolling line |
| 01/10/1992 | CA2085223A1 Process and plant for obtaining steel strip coils having cold-rolled characteristics and directly obtained in a hot-rolling line |
| 01/08/1992 | EP0464275A1 Improvement of magnetic and mechanical properties of amorphous alloys by pulse high current |
| 01/07/1992 | US5078811 Method for magnetic domain refining of oriented silicon steel |
| 01/07/1992 | US5078809 Method for producing cold-rolled steel sheet |
| 01/07/1992 | US5078808 Controlled intermediate anneal and cooling procedure, improved magnetic quality, simplification |
| 01/02/1992 | EP0463182A1 METHOD OF MANUFACTURING Cr-Ni STAINLESS STEEL SHEET EXCELLENT IN SURFACE QUALITY AND MATERIAL THEREOF |
| 01/02/1992 | EP0202243B1 Hot working of amorphous alloys |
| 12/28/1991 | WO1992000393A1 Method of producing ultrafine high-strength, high-ductility steel wire |
| 12/27/1991 | EP0462783A2 Process and apparatus for producing thin-webbed H-beam steel |
| 12/27/1991 | EP0462779A2 Method of making steel useful in springs |
| 12/27/1991 | EP0462380A2 Method of producing high-strength cold-rolled steel sheet suitable for working |
| 12/26/1991 | WO1991019821A1 Process for producing nondirectional electrical steel sheet excellent in magnetic properties after stress relieving annealing |
| 12/24/1991 | US5074931 Heating in gas furnace, edge rolling, flattening with horizont al rolls, heating in electrical furnace, rough rolling, finish ing |
| 12/24/1991 | US5074930 Method of making non-oriented electrical steel sheets |
| 12/24/1991 | US5074927 Hot rolling, annealing in single heat treatment |
| 12/24/1991 | US5074926 Ductility |
| 12/24/1991 | US5074924 Process for producing galvanized, non-aging cold rolled steel sheets having good formability in a continuous galvanizing line |
| 12/17/1991 | US5073211 Method for manufacturing steel article having high magnetic permeability and low coercive force |
| 12/12/1991 | DE4018566A1 Hardened material shaping - uses lower forces during heating than levels for elastic or plastic distortion to allow major shape and size changes |
| 12/08/1991 | WO1991019014A1 Process for obtaining a high strength hard-drawn steel wire |
| 12/08/1991 | CA2059631A1 Process for obtaining a high strength hard-drawn steel wire for making reinforcing cables for elastomeric articles such as tires and reinforcing elements |
| 12/07/1991 | CA2033222A1 Method of making an abrasion resistant steel |
| 12/04/1991 | EP0458987A1 Process for producing thin austenitic stainless steel plate and equipment therefor |
| 12/04/1991 | CN1056716A High-strength cold rolling diphase steel plate and made method |
| 11/26/1991 | US5067992 Electromagnetic steel sheets with small closely spaced holes |
| 11/19/1991 | US5066455 High strength, ductility, rapid isothermal transformation from face centered cubic to body centered cubic |
| 11/19/1991 | US5066343 Process for preparation of thin grain oriented electrical steel sheet having superior iron loss and high flux density |
| 11/05/1991 | US5062906 Aluminum nitrides |
| 11/05/1991 | US5062905 Method of producing non-oriented magnetic steel plate having high magnetic flux density |
| 10/31/1991 | WO1991016462A1 Process for producing unidirectional magnetic steel sheet excellent in magnetic characteristics |