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| Number | Title | Issue Date |
| 5542995 | Method of making steel strapping and strip and strapping and strip A method of making flat steel strapping or strip from rods, bars or slit steel includes the steps of heating a piece of steel to an elevated temperature greater than the upper critical temperature, hot rolling the steel and quenching the rolled steel from... | 08/06/1996 |
| 5503691 | The aesthetic enhancement or modification of articles or components made of non-ferrous metals A method of enhancing the appearance of a polished surface of an artifact is provided in which the artifact is formed from a non-ferrous alloy, in particular, but not exclusively, a precious metal alloy, chosen to exhibit a martensitic and a parent phase ... | 04/02/1996 |
| 5487795 | Method for heat treating an impact beam of automotive vehicle door and a system of the same A method and a system for heat treating an impact beam of an automotive vehicle door. Hot rolled steel sheets are prepared having a composition consisting essentially of 0.18% to 0.22% carbon; 1.0 to 1.5% manganese; 0.15 to 0.4% silicon; not more than 0.0... | 01/30/1996 |
| 5478410 | Process for producing grain-oriented electrical steel sheet having low watt loss A process for producing a grain-oriented electrical steel sheet having a low watt loss, in which a steel strip consisting, in wt %, of 0.8 to 4.8 Si, 0.012 to 0.050 acid-soluble Al, 0.01 or less N, and the balance consisting of Fe and unavoidable impuriti... | 12/26/1995 |
| 5460663 | High corrosion resistant amorphous alloys Amorphous alloys having an extremely high corrosion resistance comprise Cr and at least one element selected from Ta and Nb, as essential components, and are spontaneously passive owing to the formation of stable protective films, even in very corrosive e... | 10/24/1995 |
| 5454887 | Process for manufacturing a medium-carbon steel plate with improved formability and weldability A process for manufacturing a medium-carbon steel plate having a graphitization of 50% or more with improved formability and weldability is disclosed, the process comprises the steps of: hot rolling a steel with a finishing temperature of 700°-900° C., ... | 10/03/1995 |
| 5452882 | Apparatus for quenching metallic ring-shaped workpieces For quenching heated metallic work pieces with a quenching intensity that lies in the region of H values from 0.2 to 4, which is typical for oil or water quenching, a cooling gas is used as the quenching medium in the form of discrete jet streams issuing ... | 09/26/1995 |
| 5453136 | Process for manufacturing high magnetic flux density grain oriented electrical steel sheet having superior magnetic properties A process for manufacturing a high magnetic flux density grain oriented thin electrical steel sheet having superior magnetic properties and for use on transformers is disclosed. Proper amounts of Sn, Cr, Ni and Mo are added into a high magnetic flux densi... | 09/26/1995 |
| 5451276 | Process for producing a ski edge A process is disclosed for producing a ski edge made of quenched and subsequently tempered steel having a head (2) that comprises the running surface and a flank (4) that projects into the body of the ski. The profiled edge (1) is at first rolled, then qu... | 09/19/1995 |
| 5451273 | Cast alloy article and method of making and fuel filter A cast alloy article suitable for improving the combustion characteristics and efficiency of a liquid fuel is disclosed. This cast alloy article is chiefly characterized by having coarse and irregular surface contour of interspersed peaks, valleys and por... | 09/19/1995 |
| 5437744 | Molybdenum-rhenium alloy A molybdenum-rhenium alloy having an excellent low temperature ductility paired with an excellent high temperature strength. The alloy consists, essentially in % by weight, of 42 up to | 08/01/1995 |
| 5433801 | Razor blade steel having high corrosion resistance, razor blades and a process for manufacturing razor blades Steel which is particularly useful for making a razor blade of high corrosion resistance contains more than 0.45%, but less than 0.55%, of carbon, 0.4 to 1.0% of silicon, 0.5 to 1.0% of manganese, 12 to 14% of chromium and 1.0 to 1.6% of molybdenum, all b... | 07/18/1995 |
| 5425798 | Zinc alloy powder for alkaline cell and method to produce the same A non-amalgamated zinc alloy powder for use in an alkaline cell which consists of elements selected from the following compositions (1) to (4); (1) 0.001 to 0.5% by weight of aluminum and 0.01 to 0.5% by weight of bismuth, (2) 0.001 to 0.5% by weight of alumin... | 06/20/1995 |
| 5421920 | Process for producing rolled shape steel material having high strength, high toughness, and excellent fire resistance After a predeoxidation treatment of a molten steel comprising as basic ingredients, in terms of % by weight, 0.04 to 0.20% of C, 0.05 to 0.50% of Si, 0.4 to 2.0% of Mn, 0.3 to 0.7% of Mo, 0.003 to 0.015% of N, 0.04 to 0.20% of V and less than 0.005% of Al... | 06/06/1995 |
| 5421911 | Regular grain oriented electrical steel production process The present invention provides a steel composition and method for producing a high quality regular grain oriented electrical steel having less than 0.005% aluminum using a single cold reduction step. A high austenite volume fraction, the use of an anneali... | 06/06/1995 |
| 5417778 | Ductile, light weight, high strength beryllium-aluminum cast composite alloy A light weight, high strength quaternary or higher-order cast beryllium-aluminum alloy, including approximately 60 to 70 weight % beryllium, and from approximately 0.2 to 5 weight % germanium and from 0.2 to 4.25 weight % silver, with the balance aluminum... | 05/23/1995 |
| 5415711 | High-strength spring steels and method of producing the same A high-strength spring steel has a high fatigue limit and is characterized by restricting the number of oxide particle inclusion having a diameter of not less than 10 μm in steel to not more than 12 particles/100 mm2.... | 05/16/1995 |
| 5415707 | High modulus materials for surgical needles Disclosed are sterile surgical needles formed of alloys of tungsten and a second metal selected from the group consisting of rhenium, rhodium and iridium. The needles exhibit a tensile yield strength in excess of 250,000 psi and a tensile modulus of elast... | 05/16/1995 |
| 5415710 | Heat-resistant aluminum alloy having high fatigue strength The aluminum alloy of the invention has excellent fatigue strength, high rigidity, and low thermal expansion coefficient, and is suitable for rotating components such as conrods in an internal combustion engine. The aluminum alloy is an Al-Si alloy which ... | 05/16/1995 |
| 5413640 | Method of producing non-oriented electromagnetic steel strip having superior magnetic properties and appearance A method of producing a non-oriented electromagnetic steel strip by subjecting a low-carbon steel slab to hot-rolling, cold rolling at a small reduction and first annealing. In order to improve magnetic flux density and surface appearance of the product, ... | 05/09/1995 |
| 5413639 | Method of manufacturing low-core-loss grain oriented electrical steel sheet A method of manufacturing a low-core-loss oriented electrical steel sheet. Thread-like grooves are formed in a cold-rolled grain oriented electrical steel sheet having a final thickness of about 0.27 mm or less in a direction within the range of about 30Â... | 05/09/1995 |
| 5411605 | Soft magnetic steel material having excellent DC magnetization properties and corrosion resistance and a method of manufacturing the same This invention is intended for providing a soft magnetic steel material having excellent DC magnetization properties and corrosion resistance, and capable of being manufactured at a low cost, and a method of manufacturing the same. The soft magnetic steel... | 05/02/1995 |
| 5409554 | Prevention of particle embrittlement in grain-refined, high-strength steels A process for improving the impact properties of high-strength steels containing grain-refining additions is disclosed along with a product made in accordance therewith. The process comprises a pretreatment step involving heating and hot deformation at a ... | 04/25/1995 |
| 5407496 | Method of manufacturing a guide for driven chains A method for the production of a slideway-type guide for driven chains such as cutting chains includes the application of a wear-resistant hard metal alloy as a running surface to the slideway of the guide. A bar-shaped blank with a dentritic structure, m... | 04/18/1995 |
| 5401006 | Quench press A method and press for uniformly quenching a heated annular workpiece while fixturing the workpiece to prevent distortion during quenching. The press has a conically shaped lower die for receiving a workpiece to be quenched thereon and a vertically recipr... | 03/28/1995 |
| 5391241 | Fe-Ni alloy cold-rolled sheet excellent in cleanliness and etching pierceability An Fe--Ni alloy cold-rolled sheet excellent in cleanliness and etching pierceability prepared as specified in the claims, which consists essentially of: 30 to 45 wt. % nickel, 0.1 to 1 wt. % manganese, 0.003 to 0.03 wt. % aluminum and the balance being ir... | 02/21/1995 |
| 5390900 | Metal strip cooling system An apparatus and method for cooling a metal strip, the apparatus having a header that receives and directs a curtain of water across the strip, a water collector on one side of the curtain of water and a source of air on the opposite side of the curtain o... | 02/21/1995 |
| 5387294 | Hard surfacing alloy with precipitated metal carbides and process A hard surfacing alloy which has a Rockwell C hardness of greater than about 50 and which includes tungsten carbide, chromium carbide and bi-metallic chromium and tungsten carbide crystals which are precipitated in the alloy. Alloys of the present inventi... | 02/07/1995 |
| 5383980 | Process for hardening workpieces in a pulsed plasma discharge Workpieces of steel are hardened by carburizing the surface and then quenching. The carburizing is performed by means of a plasma discharge in a vacuum, in the presence of gaseous hydrocarbons at voltages between 200 and 2000 volts, preferably between 300... | 01/24/1995 |
| 5377959 | Apparatus for improving service life of thermite rail welds In the heat treatment in the field of a thermite weld between rail ends, the rail ends and the weld are enclosed within a containment filled with an aluminothermic material mixture. The mixture is ignited and the rail ends and the thermite weld are heat-t... | 01/03/1995 |
| 5370748 | Process for manufacturing double oriented electrical steel sheet having high magnetic flux density The present invention is a process for manufacturing a double oriented electrical steel sheet having a high magnetic flux density by carrying out a low temperature annealing for the secondary recrystallization by the use of AlN as inhibitor, characterized... | 12/06/1994 |
| 5370753 | Process for cladding precious metals to precipitation hardenable materials A process for cladding precious metals to precipitation hardenable materials. In accordance with one aspect of the present invention, are the steps of (i) placing a precious metal layer of a first selected thickness atop a selected beryllium-copper alloy ... | 12/06/1994 |
| 5366563 | Hot argon cleaning and protective coating of components made of metal or alloy The surfaces of a metal or alloy component are scrubbed by a high-velocity stream of inert gas at temperatures which facilitate removal of contaminants. Simultaneous with scrubbing, the impurities are captured in a separated loop of one or more "getter" f... | 11/22/1994 |
| 5362338 | Non-heat treating steel for hot forging A non-heat-treating steel for hot forging which does not require heat treatment and still yields high static strength, toughness and fatigue resistance only by air cooling after hot forging. The main ingredients are, by weight %, 0.10-0.30% C, 0.05-0.50% ... | 11/08/1994 |
| 5360495 | Process for hardening cutting edges with an oval shaped plasma beam An apparatus and process for hardening cutting edges having various widths. The apparatus includes a plasma torch for projecting a plasma beam through an outlet nozzle. The outlet nozzle has a length parallel to the cutting edge and a width perpendicular ... | 11/01/1994 |
| 5358577 | High strength and high toughness martensitic stainless steel and method of manufacturing the same A high strength, high toughness stainless steel consisting, by weight, of C more than 0.16% but less than 0.25%, Si not more than 2.0%, Mn not more than 1.0%, Ni not more than 2.0%, Cr from 11 to 15%, Mo not less than 0.5% but less than 3.0%, Co from 12 t... | 10/25/1994 |
| 5354388 | Production of beryllium-copper alloys and beryllium copper alloys produced thereby A process for producing the beryllium-copper alloy comprises the steps of casing a beryllium-copper alloy composed essentially of 1.00 to 2.00% by weight of Be, 0.18 to 0.35% by weight of Co, and the balance being Cu, rolling the cast beryllium-copper all... | 10/11/1994 |
| 5346562 | Method of production of iron aluminide materials The method makes possible the production of iron aluminide raw materials which consist of a Fe3 Al-base alloy containing 18-35% Al, 3-15% Cr, 0.2-0.5% B and/or C, and altogether 0-8% of the following alloying additives: Mo, Nb, Zr, Y and/or V, ... | 09/13/1994 |
| 5344506 | Shape memory metal actuator and cable cutter A shape memory alloy (SMA) actuator predeformed in compression actuates a cable cutter mechanism. A cable or other item to be cut is placed between an anvil and a movable blade affixed to the SMA element. The SMA element is heated by an electrical resista... | 09/06/1994 |
| 5344509 | Process for prevent the formation of adhesives when annealing steel band A process to prevent the formation of adhesives when annealing a steel band having a low carbon content uses an inert gas consisting of nitrogen and hydrogen and includes the phases of heating up, holding time and cooling. The process is characterized in ... | 09/06/1994 |
