| Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654) |
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| 06/29/1994 | CN1025224C Cold-rolled high tonsion steel strip having excellent stretching and folding properties, and molten zinc coating steel strip and process for mfg. same |
| 06/23/1994 | WO1994013842A1 Cold formed high-strength steel parts |
| 06/22/1994 | CN1088265A High-efficient energy-saving process of manufacturing mediumcarbon steel wires with spherical cementite |
| 06/15/1994 | EP0601549A1 Electrical steel sheet |
| 06/08/1994 | EP0600181A1 Method for producing regular grain oriented electrical steel using a single stage cold reduction |
| 06/08/1994 | EP0302947B1 Rare earth element-iron base permanent magnet and process for its production |
| 06/07/1994 | US5318639 Incorporating titanium oxide into magnesium oxide annealing separating agent, purification annealing in two stages with different nitrogen concentrations |
| 06/07/1994 | CA2006756C Galvannealed steel sheet having improved spot-weldability |
| 06/01/1994 | EP0541574B1 Process and plant for obtaining steel strip coils having cold-rolled characteristics and directly obtained in a hot-rolling line |
| 05/25/1994 | EP0598371A1 Hot rolled steel wire rod, fine steel wire and twisted steel wire, and manufacture of the fine steel wire |
| 05/24/1994 | US5314549 High strength and high toughness stainless steel sheet and method for producing thereof |
| 05/19/1994 | DE4323167C1 Producing steel hollow bodies by rolling - combined with austenitic heat treatment |
| 05/17/1994 | US5312496 Skin pass rolling of mechanically scribed silicon steel |
| 05/17/1994 | US5312495 Process for producing high strength alloy wire |
| 05/17/1994 | US5312493 Alloys of carbon silicon, manganese, phosphorous, sulfur, aluminum and titanium with ferrite and martensite structure |
| 05/11/1994 | WO1994010355A1 High-strength hot-rolled steel sheet excellent in uniform elongation after cold working and process for producing the same |
| 05/10/1994 | US5310990 Method of laser processing ferroelectric materials |
| 05/10/1994 | US5310975 Method and apparatus for the continuous field annealing of amorphous metal transformer cores |
| 05/10/1994 | US5310432 Toothed wheel for use in automobiles and its manufacturing method |
| 05/04/1994 | EP0595282A1 Method and installation for manufacturing hot-rolled steel strip, in particular from a continuously cast material |
| 05/04/1994 | EP0594935A1 Highly mechanical and corrosion resistant stainless steel and relevant treatment process |
| 05/04/1994 | EP0594866A1 Austenitic stainless steel sheet with excellent surface quality and production thereof |
| 05/04/1994 | EP0594865A1 Thin-strip cast piece of austenitic stainless steel, thin-strip cold-rolled steel plate and method of manufacturing the same |
| 04/27/1994 | CN1085834A Apparatus and method for the manufacture of hot rolled metal strip |
| 04/26/1994 | US5306363 Foil thickness/wire diameter reduced by rolling or drawing at elevated temperature over short time period |
| 04/26/1994 | US5306356 Easy magnetization, magnetocrystalline anisotropic |
| 04/26/1994 | US5306353 Increasing magnetic flux density |
| 04/26/1994 | US5305515 Method and arrangement for rolling hot wide strips from continuously cast thin slabs |
| 04/19/1994 | US5304262 Controlled hardness, resistance to corrosion and wear |
| 04/19/1994 | US5303766 Apparatus and method for the manufacture of hot-rolled steel |
| 04/14/1994 | DE4233462A1 Improving the properties of martensitic steel wire - through further forming by cold-rolling processes |
| 04/13/1994 | EP0592267A1 Steel for packaging purposes and its use for cans with closures of the easy-to-open type by tearing along a line of weakness |
| 04/13/1994 | EP0506768B1 Steel wire having a structure of the cold-drawn lower bainite type; method for producing such wire |
| 04/13/1994 | CN2161624Y Vacuum continuous crystal furnace |
| 04/12/1994 | US5301742 Amorphous alloy strip having a large thickness |
| 04/12/1994 | CA2027316C Process for preparing wound core having low core loss |
| 04/06/1994 | CN1024141C Steel sheets for porcelain enameling and method of producing same |
| 04/05/1994 | EP0567612A4 Nonoriented electrical steel sheets with superior magnetic properties, and methods for manufacturing thereof. |
| 04/05/1994 | CA1328179C Free-cutting steel having high fatigue strength |
| 03/31/1994 | WO1994006948A1 Ferrite single phase cold rolled steel sheet or fused zinc plated steel sheet for cold non-ageing deep drawing and method for manufacturing the same |
| 03/30/1994 | EP0589435A2 Refractory shape steel material containing oxide and process for producing rolled shape steel of said material |
| 03/30/1994 | EP0589424A2 Shape steel material having high strength, high toughness and excellent fire resistance and process for producing rolled shape steel of said material |
| 03/30/1994 | EP0589418A1 Process for producing oriented electrical steel sheet having minimized primary film, excellent magnetic properties and good workability |
| 03/30/1994 | EP0589415A1 Steel sheet for press working that exhibits excellent stiffness and satisfactory press workability |
| 03/30/1994 | CN1084580A Refractory shape steel material containing oxide and process for producing rolled shape steel of said material |
| 03/23/1994 | EP0588342A1 Grain-oriented electrical steel sheet and material having very high magnetic flux density and method of manufacturing same |
| 03/22/1994 | US5296051 Method of producing low iron loss grain-oriented silicon steel sheet having low-noise and superior shape characteristics |
| 03/22/1994 | US5296050 Method of producing grain oriented silicon steel sheets having improved magnetic properties |
| 03/17/1994 | WO1994005823A1 Cold-rolled sheet and hot-galvanized, cold-rolled sheet, both excellent in bake hardening, cold nonaging and forming properties, and process for producing the same |
| 03/16/1994 | EP0587489A1 Method and device to produce a hardened twisted bar with holes |
| 03/16/1994 | EP0587150A1 Process for hot working continuous-cast bloom and steel ingot |
| 03/16/1994 | EP0586704A1 High-yield-ratio hot-rolled high-strength steel sheet excellent in formability or in both of formability and spot weldability, and production thereof |
| 03/16/1994 | EP0586703A1 Method of manufacturing bent pipe of high tensile steel |
| 03/16/1994 | CN1024025C Process for producing high strength stainless steel of duplex structure having excellent spring limit value |
| 03/15/1994 | US5294271 Heat treatment for manufacturing spring steel excellent in high-temperature relaxation resistance |
| 03/09/1994 | EP0585956A1 Thick grain-oriented electrical steel sheet exhibiting excellent magnetic properties |
| 03/08/1994 | US5292383 Improved fish scale resistance and press formability |
| 03/08/1994 | CA1327507C Method of producing grain oriented silicon steel sheets having improved magnetic properties and a continuous intermediate annealing equipment therefor |
| 03/03/1994 | WO1994004304A1 Apparatus and method for precision gear finishing by controlled deformation |
| 03/02/1994 | EP0584610A1 Method and low iron loss grain-oriented electromagnetic steel and method of manufacturing same |
| 03/02/1994 | EP0584605A1 Apparatus and method for the manufacture of hot rolled metal strip |
| 03/02/1994 | EP0429651B1 Iron base, soft magnetic steel material |
| 03/01/1994 | US5290372 Fe-Mn group vibration damping alloy manufacturing method thereof |
| 03/01/1994 | US5290370 Cold-rolled high-tension steel sheet having superior deep drawability and method thereof |
| 02/27/1994 | CA2104881A1 Apparatus and method for the manufacture of hot rolled metal strip |
| 02/23/1994 | EP0583793A1 Method of irradiating running strip with energy beam |
| 02/23/1994 | CN1082763A An inner-shield material to be attached inside a color cathode ray tube and manufacturing method thereof |
| 02/22/1994 | US5288736 Coating a magnesium oxide protective coatings with magnesium surfate on surfaces to maintain surfur concentration |
| 02/22/1994 | US5288346 Preparing melt containing iron, carbon, and alloying elements, cooling, annealing below solidus temperature of white cast iron |
| 02/22/1994 | US5288343 Stainless steel sheet for exterior building constituent |
| 02/17/1994 | DE4321354A1 Producing cold rolled strip with good deep drawing properties - by subjecting strip to holding phase during heating up at 590-600 deg.C. |
| 02/15/1994 | US5286315 Continuous feeding onto cooling surface; impinging rigid particles against surface; heat-annealing to recrystallize |
| 02/15/1994 | US5286309 Electric-resistance-welded steel pipe with high strength |
| 02/09/1994 | EP0582132A1 Structural steel, especially concrete reinforcing steel and method of manufacturing |
| 02/08/1994 | US5284535 Casting molten steel, cooling, heat treating and cold rolling |
| 02/08/1994 | US5284534 Thermomechanical methods for improving the fatigue characteristics of metallic materials |
| 02/08/1994 | US5284529 Abrasion-resistant steel |
| 02/03/1994 | DE4225479A1 Producing reinforcing steel strengthened by stretch treatment - with stretch and straightening units fed with wire from loose bundles |
| 02/01/1994 | US5282906 Martensitic matrix microstructure with dispersed particles of vanadium and niobium carbonitrides and iron carbide; controlled hot roll finishing and cooling; springs |
| 02/01/1994 | CA2022907C Method of manufacturing a steel sheet |
| 01/26/1994 | EP0580062A1 Process for manufacturing of thick armour plates |
| 01/26/1994 | CN1081207A Apparatus for continous heat treatment of metalic objects |
| 01/25/1994 | US5281284 Chromium, nickel alloys cast by pouring melts, cooling, tempering and coiling |
| 01/19/1994 | CN1023569C Prepn. of pumping rod without heat treatment |
| 01/18/1994 | US5279683 Method of producing high-strength cold-rolled steel sheet suitable for working |
| 01/18/1994 | US5279141 Apparatus for pre-processing stainless steel strip intended to be cold-rolled |
| 01/18/1994 | CA2003819C Method for the manufacture of formable steel |
| 01/18/1994 | CA1326143C Ferritic stainless steel and processing therefore |
| 01/06/1994 | WO1994000615A1 Cold-rolled steel plate having excellent baking hardenability, non-cold-ageing characteristics and moldability, and molten zinc-plated cold-rolled steel plate and method of manufacturing the same |
| 01/05/1994 | EP0577124A2 Grain oriented electrical steel sheet having high magnetic flux density and ultra low iron loss and process for producing the same |
| 01/05/1994 | EP0436530B1 Method and apparatus for continuous in-line annealing of amorphous strip |
| 01/04/1994 | CA2024945C Cold-rolled steel sheet for deep drawing and method of producing the same |
| 12/23/1993 | DE4311150C1 Preheating concast slab in two stages prior to hot rolling - to prevent edge cracking in final strip |
| 12/22/1993 | EP0574814A2 High-strength cold-rolled steel sheet excelling in deep drawability and method of producing the same |
| 12/21/1993 | CA2020933C Method of hot rolling continuously cast grain-oriented electrical steel slab |
| 12/21/1993 | CA1325372C Process and apparatus for improvement of iron loss of electromagnetic steel sheet or amorphous material |
| 12/15/1993 | EP0573642A1 Process for manufacturing high magnetic flux density grain oriented electrical steel sheet having superior magnetic properties. |
| 12/15/1993 | EP0573641A1 Austenitic high manganese steel having superior formability, strength and weldability, and manufacturing process therefor |
| 12/15/1993 | CN1079513A High manganese a austenitic steel having excellent shapability, strength and weldabilily and its process for production |
| 12/14/1993 | US5269856 Process for producing high strength endless steel belt having a duplex structure of austenite and martesite |