Patent application number | Description | Published |
20090041616 | AI BASE ALLOY EXCELLENT IN HEAT RESISTANCE, WORKABILITY AND RIGIDITY - Disclosed is a lightweight aluminum based alloy that is high in strength and elongation properties at high temperatures of around 200° C. to 300° C. and has excellent workability in hot working. Disclosed also is a heat-resistant aluminum based alloy excellent in wear resistance and rigidity. Specifically, an aluminum based alloy contains, in terms of percent by mass, 5% to 10% of Mn; 0.5% to 5% of V; 0.5% to 5% of Cr; 0.5% to 5% of Fe; 1% to 8% of Si; 0.5% to 5% of Ni, with the balance being aluminum and inevitable impurities. The aluminum based alloy has a structure including 35 to 80 percent by volume of an intermetallic compound phase with the balance being an aluminum metal matrix. | 02-12-2009 |
20090056620 | Thermal spraying nozzle device and thermal spraying system using the same | 03-05-2009 |
20100009795 | PULLEY FOR CONTINUOUSLY VARIABLE TRANSMISSION - Disclosed is a pulley capable of meeting requirements for both enhancement in friction coefficient, and maintenance of abrasion resistance, required of a belt CVT (continuously variable transmission). | 01-14-2010 |
20100101748 | HIGH-STRENGTH AND HIGH-DUCTILITY AL ALLOY AND PROCESS FOR PRODUCTION OF THE SAME - An object of the present invention is to provide an Al—Zn—Mg—Cu 7000-series Al alloy having high ductility as well as having high strength. For attaining this purpose, an Al alloy having a structure in which an inclusion is not included is produced by reducing an amount of oxygen contained in an Al alloy that is obtained by solidifying a preform resulting from rapid solidification by preferably spray forming a molten metal of an Al—Zn—Mg—Cu 7000-series Al alloy with an inert gas. This Al alloy has, as mechanical properties at an ordinary temperature, a tensile strength of 600 MPa or more, and an elongation of 15% or more when the tensile strength is from 600 MPa or more and less than 800 MPa or an elongation of 10% or more when the tensile strength is 800 MPa or more, and is excellent in cold workability such as rollability. | 04-29-2010 |
20100252147 | HIGH-STRENGTH COLD-ROLLED STEEL SHEET - The invention provides a high-strength cold-rolled steel sheet which is improved in elongation and stretch-flangeability and exhibits more excellent formability. The high-strength cold-rolled steel sheet has a composition which contains by mass C: 0.03 to 0.30%, Si: 0.1 to 3.0%, Mn: 0.1 to 5.0%, P: 0.1% or below, S: 0.005% or below, N: 0.01% or below, and Al: 0.01 to 1.00% with the balance consisting of iron and unavoidable impurities. The high-strength cold-rolled steel sheet has a structure which comprises at least 40% (up to 100% inclusive) in terms of area fraction of tempered martensite having a hardness of 300 to 380 Hv and the balance ferrite. The cementite particles in the tempered martensite take such dispersion that 10 or more cementite particles having equivalent-circle diameters of 0.02 to less than 0.1 μm are present per one μm | 10-07-2010 |
20120009434 | COLD-ROLLED STEEL SHEET - Disclosed is a high-strength cold-rolled steel sheet which has improved stretch-flange formability while keeping excellent hydrogen embrittlement resistance. The cold-rolled steel sheet comprises 0.03 to 0.30% by mass of C, 3.0% by mass or less (including 0% by mass) of Si, more than 0.1% by mass and not more than 2.8% by mass of Mn, 0.1% by mass or less of P, 0.005% by mass or less of S, 0.01% by mass or less of N, and 0.01 to 0.50% by mass of Al. The cold-rolled steel sheet additionally comprises V in an amount of 0.001 to 1.00% by mass or one or more elements selected from Nb, Ti and Zr in the total amount of 0.01% by mass or more, with the remainder being made up by iron and unavoidable impurities, wherein the contents of one or more elements selected from Nb, Ti and Zr fulfils the requirement represented by the following formula: [% C]−[% Nb]/92.9×12−[% Ti]/47.9×12−[% Zr]/91.2×12>0.03. In the cold-rolled steel sheet, the area ratio of tempered martensite is 50% or more (including 100%), and ferrite makes up the remainder. In the cold-rolled steel sheet, the distribution of precipitates in the tempered martensite is as follows: the number of precipitates each having a circle-equivalent diameter of 1 to 10 nm is 20 particles or more per 1 μm | 01-12-2012 |
20120012231 | COLD-ROLLED STEEL SHEET AND METHOD FOR PRODUCING THE SAME - A cold-rolled steel sheet of the present invention which has a composition containing, in terms of % by mass, C: 0.05-0.30%, Si: 3.0% or less (including 0%), Mn: 0.1-5.0%, P: 0.1% or less (including 0%), S: 0.010% or less (including 0%), and Al: 0.001-0.10%, and remainder being mainly iron, and which has a structure comprising, in terms of area ratio, 10-80% ferrite, less than 5% (including 0%) of the sum of retained austenite and martensite, and a hard phase as the remainder. The steel sheet gives a KAM value frequency distribution curve in which the relationship between the proportion of frequency having a KAM value ≦0.4, X | 01-19-2012 |
20150235819 | OXIDE SINTERED BODY AND SPUTTERING TARGET - An oxide sintered body is obtained by mixing and sintering a zinc oxide, an indium oxide, a gallium oxide and a tin oxide. The oxide sintered body has a relative density of 85% or more, and has volume ratios satisfying the following expressions (1) to (3), respectively, as determined by X•ray diffractometry: (1) (Zn | 08-20-2015 |