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| Number | Title | Issue Date |
| 7445678 | Maraging steel and method of producing the same Disclosed is a method of producing maraging steel, which includes producing a consumable electrode for vacuum remelting; and subjecting the consumable electrode to the vacuum remelting. The consumable electrode contains not less 5 ppm Mg. Disclosed is also a maragin... | 11/04/2008 |
| 7442261 | Iron-base alloy containing chromium-tungsten carbide and a method of producing it In a method of producing an iron-based alloy containing chromium carbide, pieces of cemented carbide are added to an iron-based melt containing carbon, e.g. cast iron. Chromium, which regulates the solution of WC into the melt, is also added. The molten alloy is the... | 10/28/2008 |
| 6921497 | Composition of matter tailoring: system I The present invention relates to new compositions of matter, particularly metals and alloys, and methods of making such compositions. The new compositions of matter exhibit long-range ordering and unique electronic character. ... | 07/26/2005 |
| 6572792 | Composition of matter tailoring: system 1 A composition of matter includes a changed underlying electronic structure of a mass or matter containing a `p`, `d` and/or `f` atomic orbital. The structural change is accompanied by changes in energy or mass or both.... | 06/03/2003 |
| 6423158 | Rolling bearings and gear shaft support device A roller bearing which can sufficiently ensure an endurance life of rollers even under conditions where debris contamination and temperature rise are large. As the material for an outer ring, inner ring and tapered rollers, a steel in which the Si and-Mn ... | 07/23/2002 |
| 6406557 | Process for the treatment of grain oriented silicon steel During the treatment of electrical steel, a careful combination of heat treatment of the slab with a specific primary recrystallization and nitriding treatment allows for control of the distribution, quantity and dimensions of precipitates in order to obt... | 06/18/2002 |
| 6361621 | Process for the inhibition control in the production of grain-oriented electrical sheets The production of grain-oriented electrical steel sheets is disclosed wherein grain growth in the steel is inhibited by a method comprising the regulation of the content of sulfur and manganese in the steel strp and the cold rolled strip is continuously n... | 03/26/2002 |
| 6361620 | Process for the inhibition control in the production of grain-oriented electrical sheets In the production of grain-oriented electrical steel strip, the grain growth inhibition is controlled by balancing the copper, aluminum and carbonium content in order to control the type and quantity of precipitated second phases and obtain optimum grain ... | 03/26/2002 |
| 6325866 | Process for the production of grain oriented silicon steel sheet A process for the production of grain oriented silicon steel sheet which provides an optimization of the production of conventional, grain oriented silicon steel strips, by the use of an appropriate synergistic combination of the composition levels of som... | 12/04/2001 |
| 5772795 | High strength deep drawing steel developed by reaction with ammonia A method of producing high strength steel sheet and formed articles fabricated from the sheet and containing about 0.01-0.3 free and uncombined atomic percent Ti, Nb or V as strengthening element, by hot rolling or hot rolling plus cold rolling the sheet ... | 06/30/1998 |
| 5505791 | Process of producing nitrided and hardened nickel alloy products The present invention relates to nickel alloy products with their surfaces nitrided and hardened which are formed by pressure casting nickel alloy material, and nitrided and hardened layers are formed in surface layers. Since the nitrided and hardened sur... | 04/09/1996 |
| 5424028 | Case carburized stainless steel alloy for high temperature applications A case carburizable stainless steel alloy intended to be used at operating temperatures up to 700° F. The alloy is able to achieve and maintain a high surface hardness when carburized and heat treated and combines high fracture toughness, hot hardness, m... | 06/13/1995 |
| 5395459 | Method for forming samarium-iron-nitride magnet alloys In a preferred method, a molten alloy of samarium and iron is formed with a proportion of about 1:4 to about 1:9 of samarium to iron. The molten alloy is then quenched in a non-oxidizing environment at a rate sufficient to form a solid crystalline alloy i... | 03/07/1995 |
| 4773947 | Manufacturing process for high temperature carburized case harden steel A case hardening steel which consists essentially of 0.03-0.2 wt % of C, 1.0-3.0 wt % of Si, 0.2-2.0 wt % of Mn, 0.05-0.5 wt % of V and the balance of Fe. The primary advantage of this steel is fineness of grain size after carburizing at relatively high t... | 09/27/1988 |
| 4612045 | Method for making aluminum nitride powder A method for making an aluminum nitride powder comprises atomizing a molten aluminum into a nitriding atmosphere of N2 gas of elevated temperature and solidifying the finely divided liquid particles of aluminum which have been nitrided.... | 09/16/1986 |
| 4540447 | Method of making a multigrip fastener and fastener made thereby This disclosure relates to swage type fasteners including a pin having a plurality of combination locking and breakneck grooves and a collar adapted to be swaged into the grooves with one of the grooves acting as a breakneck whereby the excess length of p... | 09/10/1985 |
| 4482399 | Nitrided cast iron product and method for manufacturing the same A nitrided cast iron product comprising cast iron matrix material and graphite particles distributed in the matrix material, a nitrided layer formed in a surface of the cast iron product and having gaps between the graphite particles and the matrix materi... | 11/13/1984 |
| 4046601 | Method of nitride-strengthening low carbon steel articles A method for internal strengthening of articles formed from deep drawing quality low carbon steel strip or sheet containing about 0.02 to about 0.3% titanium in solution, up to about 0.3% columbium in solution, columbium when present being in an amount of... | 09/06/1977 |
