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An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
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| Number | Title | Issue Date |
| 7704338 | Method of manufacturing a martensitic stainless steel This invention relates to a method of manufacturing a martensitic stainless steel. The method comprises the following steps (a) to (c): (a) preparing a steel having a chemical composition consisting of, by mass %, C: 0.003 to 0.050%, Si: 0.05 to ... | 04/27/2010 |
| 7625455 | Method of heat treatment of stainless steel A method of heat treating stainless steel in the form of blanks, piping, tubing, strip, or wire-like material, after rolling the material, and in a heat treatment furnace at a temperature higher than about 900° C. The material is subjected to a preheating stage and... | 12/01/2009 |
| 7354660 | High performance alloys with improved metal dusting corrosion resistance Alloy compositions which are resistant to metal dusting corrosion are provided by the present invention. Also provided are methods for preventing metal dusting on metal surfaces exposed to carbon supersaturated environments. The alloy compositions include an alloy (... | 04/08/2008 |
| 7244467 | Process for a beta-phase nickel aluminide overlay coating A process for forming a beta-phase nickel aluminide (NiAl) overlay coating that is suitable for use as a bond coat for a thermal barrier coating (TBC). The overlay coating is deposited by a method that produces a generally columnar grain structure in which grains ex... | 07/17/2007 |
| 7169239 | Solid expandable tubular members formed from very low carbon steel and method A very low carbon steel alloy is provided for use in manufacturing tubular members such as oil country tubular goods. The tubular members may be radially expanded from at least twenty percent to forty percent. Sections or joints of casing formed from the steel alloy... | 01/30/2007 |
| 6972954 | Liquid cooling system and personal computer using the same A liquid cooling system which is utilizable in a personal computer includes a pump for supplying a cooling liquid; a heat receiving jacket supplied with the cooling liquid and positioned to receive heat generated from a heat generation body, a heat radiation pipe fo... | 12/06/2005 |
| 6926780 | Method of surface self-nanocrystallization of metallic materials The present invention relates to a method of surface treatment of metallic materials, more particularly, to a method of the surface self-nanocrystallization of metallic materials by the bombarding of supersonic fine particles. The method comprises the step of bombar... | 08/09/2005 |
| 6893727 | Metal gasket and a material for its manufacture and a method for their manufacture This invention relates to a stainless steel gasket having markedly improved strength and fatigue properties due to precipitation strengthening. Its composition comprises C: at most 0.03%, Si: at most 1.0%, Mn: at most 2%, Cr: 16.0%-18.0%, Ni: 6.0%-8.0%, N: at most 0... | 05/17/2005 |
| 6635128 | Work hardened poppet exhaust valve A work-hardened poppet exhaust valve for internal combustion engines is obtained from a solutioned work-hardenable austenitic stainless steel coil or bar stock in which chromium is present in the range of 13%-25% by weight, nickel is present in the range ... | 10/21/2003 |
| 6589363 | Method for making heat treated stainless hydraulic components A stainless steel hydraulic component and method for making same hard turns a pre-heat treated stainless steel material, preferably a 400 series stainless steel material, provided in bar stock form in a single machining loading. Stainless steel hydraulic ... | 07/08/2003 |
| 6588494 | Method for continuous casting of highly ductile ferritic stainless steel strips between rolls, and resulting thin strips The invention relates to a process for the casting of thin strip having a thickness of less than 10 mm, made of ferritic stainless steel, directly from liquid metal between two rotating cooled rolls having parallel horizontal axes, characterized in that: ... | 07/08/2003 |
| 6485584 | Method of manufacturing a ferritic-martensitic, oxide dispersion strengthened alloy This invention relates to a method of manufacturing an improved ferritic or martensitic alloy based on iron and chromium strengthened by a dispersion of oxides, commonly called an Oxide Dispersion Strengthened or ODS alloy, and, more particularly to a met... | 11/26/2002 |
| 6475310 | Oxidation resistant alloys, method for producing oxidation resistant alloys A method for producing oxidation-resistant austenitic alloys for use at temperatures below 800° C. comprising of: providing an alloy comprising, by weight %: 14-18% chromium, 15-18% nickel, 1-3% manganese, 1-2% molybdenum, 2-4% silicon, 0% aluminum and t... | 11/05/2002 |
| 6391253 | Stainless steel having excellent antibacterial property and method for producing the same The present invention provides a stainless steel being excellent in workability, corrosion resistance and antibacterial property. To be more specific, a stainless steel containing 10 wt % or more of Cr is rendered to contain 0.0001-1 wt % of Ag, or furthe... | 05/21/2002 |
| 6340400 | Stainless steel A stainless steel component comprising 0.8-1.4% carbon, 18-26 wt % chromium, 2-4 wt % nickel, 0-1 wt % molybdenum, 0 wt % lead and less than 0.6 wt % silicon provides for beneficial properties. Such a component may be prepared by the provision of an artic... | 01/22/2002 |
| 6338762 | Stainless steel for use in engine gaskets and a method for manufacturing thereof An austenitic stainless steel for use in engine gaskets having a high fatigue strength and resistance to settlement and method of manufacture thereof. The austenitic stainless steel is prepared by cold rolling at least 40%, annealing at a temperature of 7... | 01/15/2002 |
| 6306230 | Process for the production of hardened parts of steel A method for producing hardened parts of steel from an air-hardening steel comprising the steps of heating the steel is heated to a temperature above 1,100° C., hot-working the steel parts until they reach the A1 emperature, cooling the steel ... | 10/23/2001 |
| 6245289 | Stainless steel alloy for pulp refiner plate A refiner disk or disk segment cast from a stainless steel alloy having a composition of 0.2 percent to 0.6 percent carbon, 0.5 to 1.5 percent manganese, 0.5 percent to 1.5 percent silicon, a maximum of 0.05 percent sulfur, a maximum of 0.05 percent phosp... | 06/12/2001 |
| 6136109 | Method of manufacturing high chromium martensite steel pipe having excellent pitting resistance A high-Cr martensite steel pipe having excellent pitting resistance and method for manufacturing the same, which involves forming a pipe of steel including C: about 0.03 wt % or less, Si: about 0.5 wt % or less, Mn: about 0.5-3.0 wt %, Cr: about 10.0-14.0... | 10/24/2000 |
| 6106638 | Process for manufacturing thin strip of ferritic stainless steel, and thin strip thus obtained The subject of the invention is a process for manufacturing ferritic stainless steel strip, in which a strip of a ferritic stainless steel, of the type containing at most 0.12% of carbon, at most 1% of manganese, at most 1% of silicon, at most 0.040% of p... | 08/22/2000 |
| 6053991 | Production of cold working tool steel Disclosed are a cold working tool steel suitable for plastic cold working tools used under severe service conditions, such as forming dies, forming rolls, and form rolling dies, and a process for producing the same. The cold working tool steel has wear re... | 04/25/2000 |
| 5912050 | Method for chromizing small parts An improved process for chromizing commercial quantities of small, industrial, ferrous-based parts, such as but not limited to threaded connectors, pins, bolts, nuts, washers, fasteners, fittings, couplings, studs, etc., uses a retort filled with layers o... | 06/15/1999 |
| 5911842 | Heat resisting steel and steam turbine rotor shaft and method of making thereof A heat resisting steel whose metal structure is entirely martensite phase produced by tempering after quenching. The steel comprises, by weight, 0.05 to 0.20% C, not more than 0.15% Si, not more than 1.5% Mn, not more than 1.0% Ni, 8.5 to 13.0% Cr, not mo... | 06/15/1999 |
| 5851316 | Ferrite stainless steel sheet having less planar anisotropy and excellent anti-ridging characteristics and process for producing same A ferritic stainless steel sheet having less planar anisotropy and excellent anti-ridging characteristics is disclosed. The sheet includes not more than about 0.02 wt % of C, about 0.01-1.0 wt % of Si, about 0.01-1.0 wt % of Mn, not more than about 0.08 w... | 12/22/1998 |
| 5843246 | Process for producing dual phase ferritic stainless steel strip A method for producing a dual phase ferrite-martensite steel product from a cold rolled stainless steel. The method includes a step of rapidly heating the steel to annealing temperature in less than 30 seconds, followed by a step of cooling the heated ste... | 12/01/1998 |
| 5824265 | Stainless steel alloy for pulp refiner plate A refiner disk or disk segment is cast from a stainless steel alloy having a composition of 0.2 percent to 0.4 percent carbon, 0.5 to 1.5 percent manganese, 0.5 percent to 1.5 percent silicon, a maximum of 0.05 percent sulfur, a maximum of 0.05 percent ph... | 10/20/1998 |
| 5783000 | Method for heat treatment of steel, and products of steel A method for heat-treating steel, primarily strip-like or rod-like steel material, such as steel strip, steel sheet, steel rod or steel wire which have been rolled and heated in an oven or furnace to a surface temperature above about 900 degrees C. and th... | 07/21/1998 |
| 5779820 | Process for producing a ferritic stainless steel having an improved corrosion resistance, especially resistance to intergranular and pitting corrosion The present invention relates to a process for producing a ferritic stainless steel having an improved corrosion resistance, and especially resistance to intergranular corrosion and to pitting corrosion. The steel is subjected, in a first phase, to coolin... | 07/14/1998 |
| 5575867 | Method of preventing local corrosion at weld joints A method of preventing corrosion damage at weld joints, in the heat affected zones of weld joints, and in heat-treated zones of components made of stainless steels having chromium contents ࣙ12% by weight, which comprises exposing weld joints and the hea... | 11/19/1996 |
| 5553106 | Residual stress improving method for members in reactor pressure vessel Low temperature water in a low temperature water tank 12 installed outside a reactor pressure vessel 9 is pumped by a high pressure pump 15 and supplied through a conductor 17 under pressure. The supplied water is ejected, as a stream of cold water jet 8,... | 09/03/1996 |
| 5514331 | Method and device for producing stainless steel The invention relates to a method and device for producing stainless steel, comprising methods for creating a ferroalloy, such as ferrochromium, and for further processing the alloy in order to produce a desired stainless steel. According to the invention... | 05/07/1996 |
| 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 |
| 5288347 | Method of manufacturing high strength and high toughness stainless steel 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... | 02/22/1994 |
| 5252149 | Ferrochromium alloy and method thereof An erosion and corrosion resistant ferrochromium alloy comprising the following composition, in wt. %, 34-50 chromium, 1.5-2.5 carbon, up to 5 manganese, up to 5 silicon, up to 5 molybdenum, up to 10 nickel, up to 5 copper, up to 1% of each of one or more... | 10/12/1993 |
| 5202088 | Ferritic heat-resisting cast steel and a process for making the same Ferritic heat-resisting cast steel, which intends to highten the applicability for use of the exhaust manifold of a vehicle engine without losing oxidation resistance, machinability and structural stability, containing, on a weight basis, 0.05 to 0.5% C, ... | 04/13/1993 |
| 5178693 | Process for producing high strength stainless steel of duplex structure having excellent spring limit value A process for the production of a stainless steel strip having excellent spring characteristics as such and good formability, wherein a cold rolled strip of a stainless steel comprising, in addition to Fe, from 10.0 to 20.0% by weight of Cr, from 0.01 to ... | 01/12/1993 |
| 5129966 | High performance high strength low alloy cast steels A high strength, low alloy, low to medium carbon steel casting is provided of the Fe/Cr/C type containing by weight about 0.1 to 0.5% Si, said steel characterized by the presence of a small but effective amount of each of Cu and Ni sufficient to enhance t... | 07/14/1992 |
| 5106434 | Method for producing a metal and ceramic heat-connected body In heat-connections between metal and ceramic, martensite stainless steel or martensite heat-resistant steel which can be hardened by quenching in a gas or vacuum after having been heated beyond the quench hardening temperature thereof are used as metal. ... | 04/21/1992 |
| 5080671 | Method of treating a metal prosthetic device prior to surgical implantation to enhance bone growth relative thereto following implantation Metal prosthetic devices to be surgically implanted are heated prior to implantation thereof to a temperature between 110° C. and 430° C. for a period of from twenty minutes to three hours. Such heating enhances bone growth relative to the prosthetic de... | 01/14/1992 |
| 5064479 | Thermal treatment in a fluidized bed Processes and apparatus for the thermal treating of articles, particulary for the quench hardening of metal alloys in an improved fluidized bed containing from 21 to 60 weight percent of fine alumina particles having a size from 20 to 100 microns and from... | 11/12/1991 |
