Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 7727343 | Controlled warm-rolling method The invention presents a new warm control rolling method, in consideration of processing heat generation, as a method of stably manufacturing ultrafine crystal steel of 3 microns to 1 micron or less, without any limitation in pass interval or strain speed, being a r... | 06/01/2010 |
| 7678208 | Method of hot stamping and hardening a metal sheet In the press hardening process when a blank is formed and cooled in cooled tools (30,31), the tools are used as a fixture during the hardening. The tools have alternately contact surfaces (33,34) and clearances (35) in a certain area against the... | 03/16/2010 |
| 7416615 | Very-high-strength and low-density, hot-rolled steel sheet and manufacturing process The invention relates to a high-resistant, low-density hot laminated sheet steel comprising the following elements expressed in weight per cent: 0.04%:9 carbon≦0.5%; 0.05%≦manganese≦3%, being able to contain hardening elements: 0.01%≦niobium≦0.1 0.01%≦ti... | 08/26/2008 |
| 7341765 | Metallic coatings on silicon substrates, and methods of forming metallic coatings on silicon substrates The invention includes methods of forming a metallic coating on a substrate which contains silicon. A metallic glass layer is formed over a silicon surface of the substrate. The invention includes methods of protecting a silicon substrate. The substrate is provided ... | 03/11/2008 |
| 7166174 | Bundle drawn stainless steel fibers The invention relates to stainless steel fibers obtained by bundled drawing of stainless steel wires embedded in a matrix material. The composition of the stainless steel fibers comprises iron and the following components expressed in percent by weight: C £ 0.05%, ... | 01/23/2007 |
| 7074497 | Coated steel sheet and method for manufacturing the same A coated steel sheet having a coated layer on surfaces of a steel sheet of a composition containing not less than 0.1 mass % and under 3 mass % of Al, wherein a following condition A or B is met: A: An AlN precipitate layer exists on a matr... | 07/11/2006 |
| 7004004 | Method of making a hardened motor-vehicle part of complex shape A hardened steel part of complex shape is made from a workpiece by first heating the workpiece to an annealing temperature. Then, while the workpiece is still at the annealing temperature, the workpiece is rapidly deformed by a machine into an intermediate shape. Th... | 02/28/2006 |
| 7005016 | Hot rolled steel having improved formability A method of producing hot rolled steel having improved formability and minimal silver formation comprises the addition of Titanium and Boron to the molten steel to combine with and remove the free nitrogen prior to rolling. Titanium is added so that the amount of ni... | 02/28/2006 |
| 6978546 | Method for producing ring members involving use of a rotatably driven mandrel A method for producing ring members, such as rings for rolling bearings, through use of a rolling operation involves warming a ring blank, positioning the warmed ring blank over a mandrel which is rotatable about a first axis, and positioning a forming roll rotatabl... | 12/27/2005 |
| 6962631 | Steel plate excellent in shape freezing property and method for production thereof A ferritic steel sheet wherein a mean value of X-ray random intensity ratios of a group of {100} to {223} orientations is 3.0 or more and a mean value of X-ray random intensity ratios of three crystal orientations of {554}, {111}, and {111} ... | 11/08/2005 |
| 6948649 | Method of producing steel pipes, and welded pipes The high yield ratio problem intrinsic in high-strength steel pipes is solved and a method of producing a steel pipe, while securing the pipe roundness is provided. A steel pipe produced from a steel plate by forming and welding is subjected to 0.3 to 1.2% of expans... | 09/27/2005 |
| 6949151 | Method for producing a hardened sheet metal section The invention relates to a method for producing a hardened sheet metal section from a flat blank, wherein the flat blank is provided with collared holes that are collared and with two groove-like indentations which serve to support the sheet metal blank on a conveyo... | 09/27/2005 |
| 6939419 | Method for producing axially symmetric parts and the article The invention relates to plastic metal working, more specifically to methods for producing parts of the disk- or shell-type having conical, hemispherical, and also combined parts, such as disk-and-shaft ones. The invention is instrumental in producing large axially ... | 09/06/2005 |
| 6918973 | Alloy and method of producing the same In accordance with a preferred embodiment of the invention, an alloy or other composite material is provided formed of a bulk metallic glass matrix with a microstructure of crystalline metal particles. The alloy preferably has a composition of (XaNib... | 07/19/2005 |
| 6841014 | Method for manufacturing a striking plate of a golf club head A method for manufacturing a striking plate of a golf club head includes the steps of soft heat-treating a flat metal blank to increase its malleability, stamping out a striking plate with an integral wall and a bend portion from the flat metal blank, precise machin... | 01/11/2005 |
| 6706419 | Cold-rolled steel sheet or hot-rolled steel sheet excellent in painting bake hardenability and anti aging property at room temperature, and method of producing the same To provide a steel sheet excellent in painting bake hardenability and anti aging property at room temperature: containing, in mass, 0.0001 to 0.20% of C, 2.0% or less of Si, 3.0% or less of Mn, 0.15% or less of P, 0.015% or less of S, and, in addition, 010% or less ... | 03/16/2004 |
| 6672330 | Valve bonded with corrosion and wear proof alloy and apparatuses using said valve A valve is characterized by excellent corrosion and wear resistance and maintainability due to use of a bonding corrosion and wear proof alloy containing non-continuously distributed eutectic carbide on the sliding portions of various types of apparatuses... | 01/06/2004 |
| 6641681 | Steel material and its manufacture The invention concerns a steel material which consists of a steel having the following chemical composition in weigh-%: 1.0-1.9 C, 0.5-2.0 Si, 0.1-1.5 Mn, 4.0-5.5 Cr, 2.5-4.0 (Mo+W/2), however max 1.0 W, 2.0-4.5 (V+Nb/2), however max 1.0. Nb, balance iron... | 11/04/2003 |
| 6572716 | Fine ferrite-based structure steel production method A fine ferrite-based steel is disclosed, wherein at least 60% of the ferrite grain boundary is a large angle grain boundary of at least 15°, and the mean ferrite grain size is not more than 2.5 μm. The fine ferrite-based steel of the invention has a hig... | 06/03/2003 |
| 6517955 | High strength galvanized steel plate excellent in adhesion of plated metal and formability in press working and high strength alloy galvanized steel plate and method for production thereof The invention relates to a high strength hot-dip galvanized and galvannealed steel sheets with excellent drawability for press forming and excellent plating adhesion that is useful as a member for automobiles, construction, electric devices and the like, ... | 02/11/2003 |
| 6508893 | Method of manufacturing Fe-Ni alloy A method of manufacturing an improved Fe--Ni alloy consisting of 33-37% Ni; 0.001-0.1% Mn; optionally, 0.01-2% Co; and at least one of (1) 0.01-0.8% Nb; (2) 0.01-0.8% Ta; and/or (3) 0.01-0.8% Hf, with the total of Nb, Ta and Hf being in the range of 0.01-... | 01/21/2003 |
| 6451134 | 590MPa class heavy gauge H-shaped steel having excellent toughness and method of producing the same The present invention relates to an H-shaped steel used as a building structure such as a column material or the like for highrise and super highrise building structures. In the bainite structure of extra-low-carbon steel, diffusive q is... | 09/17/2002 |
| 6423426 | High tensile hot-dip zinc-coated steel plate excellent in ductility and method for production thereof A steel sheet having a composition comprising C: 0.05-0.20 mass %, Si: 0.3-1.8 mass %, Mn: 1.0-3.0 mass %, Fe of the balance and inevitable impurities is subjected to a primary step of primary heat treatment and subsequent rapid cooling to Ms point or low... | 07/23/2002 |
| 6395108 | Flat product, such as sheet, made of steel having a high yield strength and exhibiting good ductility and process for manufacturing this product A flat product made of multiphase steel and a method for preparing the steel includes hot rolling at a temperature at which the austenite phase is stable, then tempering to form a C and Mn-enriched phase in a matrix, followed by a heat treatment to form a... | 05/28/2002 |
| 6364967 | High-strength, high-toughness rolled shape steel and method of producing the same A 590 MPa-class rolled steel shape of high strength and excellent toughness for use as a building structural member and a method of producing the high-tensile rolled steel shape are provided. Strength optimization by an alloy that elevates hardenability, ... | 04/02/2002 |
| 6355364 | Process of heat treating and annealing CIC and CIC created thereby Processes for preparing copper-INVAR-copper (CIC) for use in making chip packaging and the CIC created. One process comprises annealing a CIC section at a temperature in a range of 1475° F. to 1625° F. for a time in a range of 40 to 120 seconds. Another... | 03/12/2002 |
| 6316123 | Microwave annealing The present invention is directed to a method of forming a new material layer or region near an interface region of two dissimilar materials, and an optional third layer, wherein at least one of said dissimilar materials or optional third is capable of be... | 11/13/2001 |
| 6309482 | Steckel mill/on-line controlled cooling combination The in-line combination of a reversing rolling mill (Steckel mill) and its coiler furnaces with accelerated controlled cooling apparatus immediately downstream thereof and associated method permits steel to be sequentially reversingly rolled to achieve an... | 10/30/2001 |
| 6299709 | Bow-formed bumper, a method of forming a bow-formed bumper, and a method of hydroforming a blank therefor A blank with a closed profile is made of hardenable sheet steel and is hydroformed when hot. The tool is cooled and the blank is heated to a hardening temperature and formed so fast that it will not have time to harden before it contacts the tool and beco... | 10/09/2001 |
| 6290789 | Ultrafine-grain steel pipe and process for manufacturing the same A steel pipe containing fine ferrite crystal grains, which has excellent toughness and ductility and good ductility-strength balance as well as superior collision impact resistance, and a method for producing the same are provided. A steel pipe containing... | 09/18/2001 |
| 6254698 | Ultra-high strength ausaged steels with excellent cryogenic temperature toughness and method of making thereof An ultra-high strength, weldable, low alloy steel with excellent cryogenic temperature toughness in the base plate and in the heat affected zone (HAZ) when welded, having a tensile strength greater than about 830 MPa (120 ksi) and a microstructure compris... | 07/03/2001 |
| 6238498 | Method of fabricating a homogeneous wire of inter-metallic alloy A method for fabricating a homogeneous wire of inter-metallic alloy comprising the steps of providing a base-metal wire bundle comprising a metal, an alloy or a combination thereof; working the wire bundle through at least one die to obtain a desired dime... | 05/29/2001 |
| 6221179 | Hot rolled steel plate to be processed having hyper fine particles, method of manufacturing the same, and method of manufacturing cold rolled steel plate A hot rolled steel sheet with improved formability and producing method therefor, which can be easily produced with general hot strip mills, having less anisotropy of mechanical properties and final ferrite grain diameter of less than 2 μm that could not... | 04/24/2001 |
| 6162307 | BN-precipitation-strengthened low-carbon-ferritic heat-resistant steel excellent in weldability This invention provides a ferritic heat-resistant steel that can improve HAZ softening resistance, can omit heat-treatment after welding and can reduce the construction cost of a power generation plant. This ferritic heat-resistant steel contains C: 0.01 ... | 12/19/2000 |
| 6159312 | Ultra-high strength triple phase steels with excellent cryogenic temperature toughness An ultra-high strength, weldable, low alloy, triple phase steel with excellent cryogenic temperature toughness in the base plate and in the heat affected zone (HAZ) when welded, having a tensile strength greater than about 830 MPa (120 ksi) and a microstr... | 12/12/2000 |
| 6066212 | Ultra-high strength dual phase steels with excellent cryogenic temperature toughness An ultra-high strength, weldable, low alloy, dual phase steel with excellent cryogenic temperature toughness in the base plate and in the heat affected zone (HAZ) when welded, having a tensile strength greater than 830 MPa (120 ksi) and a microstructure c... | 05/23/2000 |
| 6063216 | Working of a metallic strip This invention relates to the working of a metallic strip. More particularly, the invention relates to a method of working a length of metallic strip by heat treating under tensile force, to a length of metallic strip and to an apparatus for use in workin... | 05/16/2000 |
| 6048416 | Steel, steel wire, and process for forming drawn wire of steel Steel, steel wire, and a process for forming a drawn wire, especially tire-reinforcing wire of diameter smaller than 0.4 mm, by drawing a steel of the following composition by weight: 0.005%ࣘcarbonࣘ0.050%; 0.005%ࣘnitrogenࣘ0.050%; 0.1%ࣘsilic... | 04/11/2000 |
| 6042662 | Process for manufacturing an article made of an oxide-dispersion-strengthened alloy This process makes it possible to manufacture articles of any shape by stamping, in which articles the matrix of the alloy has to have a coarse-grained structure. According to the invention, a partial hot-forming operation is carried out by stamping a bla... | 03/28/2000 |
| 6027587 | Strain-induced transformation to ultrafine microstructure in steel Steel with ultrafine grains is produced by altering the transformation from one which normally proceeds with grain boundary nucleation followed by intragranular nucleation at deformation bands and other defects, to one which induces a substantially instan... | 02/22/2000 |
