| NIPPON LIGHT METAL COMPANY, LTD. Patent applications |
| Patent application number | Title | Published |
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| 20120131862 | DOUBLE FLOOR STRUCTURE AND SUPPORT LEG FOR DOUBLE FLOOR STRUCTURE - A double floor structure capable of being adapted to the conditions of construction and the needs of users at low cost. A double floor structure (K) provided with support legs ( | 05-31-2012 |
| 20110308059 | MANUFACTURING METHOD OF LIQUID-COOLED JACKET - Provided is a method of producing a liquid-cooled jacket wherein deformation of a seal body can be minimized. A method of producing a liquid-cooled jacket constituted by fixing a seal body which seals the opening of a recess, by friction stir welding, to a jacket body having a partially opening recess through which heat transport fluid for transporting heat generated by a heat generating body to the outside flows, wherein the seal body is mounted on a supporting surface which is formed at the peripheral edge of the opening of the recess in the jacket body and consists of the bottom surface of a step lower than the surface of the jacket body, the side surface of the step of the jacket body and the outer circumferential surface of the seal body are butted each other, a plasticized region is formed by making one round of a rotary tool which is equipped with a stir pin having a length greater than the thickness of the seal body round along the butting portion of the side surface of the step of the jacket body and the outer circumferential surface of the seal body, and then the seal body is welded to the jacket body. | 12-22-2011 |
| 20110300397 | PRODUCTION SYSTEM AND PRODUCTION METHOD OF ALUMINUM ALLOY BILLET, AND ALUMINUM ALLOY BILLET - When aluminum alloy billet obtained by continuously casting molten aluminum alloy in the shape of rod is cut into a predetermined length by means of a cutting device, and then the aluminum alloy billet thus cut is loaded into a product carrier container with an identification mark that has been made, the casting condition and inspection results of the aluminum alloy billet are stored in the storage unit of a production control device in association with the identification mark so as to stabilize the quality and production of the aluminum alloy billet used for machining materials. | 12-08-2011 |
| 20110265606 | METHOD OF PRODUCTION OF ALUMINUM ALLOY - A method of production of an aluminum alloy inhibiting oxidation loss of the alloy melt without the use of Be which is liable to affect the human health. | 11-03-2011 |
| 20110177355 | AL ALLOY MEMBER, ELECTRONIC DEVICE MANUFACTURING APPARATUS, AND METHOD OF MANUFACTURING AN ANODIC OXIDE FILM COATED AL ALLOY MEMBER - Provided is an Al alloy member with an excellent mechanical strength that is sufficient for use in large-scale manufacturing apparatuses. The Al alloy member is characterized in that, in mass %, Mg concentration is 5.0% or less, Ce concentration is 15% or less, Zr concentration is 0.15% or less, the balance comprises Al and unavoidable impurities, the elements of the unavoidable impurities are respectively 0.01% or less, and the Vickers hardness of the Al alloy member is greater than 30. | 07-21-2011 |
| 20110132504 | Aluminum Alloy Casting Material for Heat Treatment Excelling in Heat Conduction and Process for Producing the Same - An aluminum alloy casting material for heat conduction obtained by adding Si to an aluminum alloy casting material with enhanced castability thereby realize enhancement of thermal conductivity. There is provided an aluminum alloy casting material excelling in heat conduction. characterized in that it comprises 5 to 10.0 mass % of Si, 0.1 to 0.5 mass % of Mg and the balance of Al and unavoidable impurities, the aluminum alloy casting material having undergone an aging treatment. Further, there is provided a cast aluminum alloy casting material that while having castability and mechanical strength equivalent to or higher than those of conventional cast aluminum alloys, is also enhanced in heat conduction; and provided a process for producing the cast aluminum alloy. In particular, there are provided a cast aluminum alloy and process for producing the same, wherein Si is contained in an amount of 6.0 to 8.0 mass %, the elements other than Si and Al each in simple form in an amount of ≦0.6%, and wherein the amount of Si solid-dissolved in aluminum parent phase is regulated to 0.5-1.1 mass % while the area ratio of crystallizate in metal structure is regulated to 5-8%. In this connection, the amount of Si solid-dissolved and the area ratio of crystallizate can be attained by performing of heating retaining treatment of the subject matter of cast aluminum alloy after casting operation at 400° to 510°C. for ≧1 hr. | 06-09-2011 |
| 20110100582 | GAS PRESSURE CONTROLLED CASTING MOLD - A gas pressure controlled casting mold is disclosed having a hot-top introducing a molten metal of aluminum or aluminum alloy, and a mold body which passes the molten metal of aluminum or aluminum alloy introduced from the hot-top through a molten metal passage portion for cooling and solidification and semi-continuously or continuously casting a billet of aluminum or aluminum alloy. A wall surface of the molten metal passage portion of the mold body is provided with a plurality of lubricating oil blow-out holes for blowing out a lubricating oil. A lubricating oil supply passage is communicatively connected to each lubricating oil blow-out hole and is independently formed at least in a range of a heat affected portion in the mold body. This allows the mold body to be reliably cooled regardless of the difference in the temperature and casting speed conditions and thus can achieve favorable continuous casting. | 05-05-2011 |
| 20110012381 | BUMPER STRUCTURE - A lightweight bumper structure is achieved without a reduction in the amount of absorption of collision energy. A bumper structure (B | 01-20-2011 |
| 20100307713 | TWIN-BELT CASTING MACHINE AND METHOD OF CONTINUOUS SLAB CASTING - There is provided a twin-belt casting machine which prevents an uneven cooling condition between the top surface and the bottom surface of a slab between a pair of endless belts disposed vertically. The twin-belt casting machine | 12-09-2010 |
| 20100296964 | ALUMINUM ALLOY FOR CASTING HAVING HIGH RIGIDITY AND LOW LINEAR EXPANSION COEFFICIENT - [Objectives] An aluminum alloy for casting with excellent rigidity and having a low coefficient of linear expansion, and at the same time, does not have a high cost, and has a few restrictions at the time of recycling. | 11-25-2010 |
| 20100108209 | ALUMINUM ALLOY MATERIAL FOR USE IN THERMAL CONDUCTION APPLICATION - An aluminum alloy material for use in thermal conduction to which improved castability has been imparted by silicon addition. It has improved thermal conductivity and improved strength. The material has a composition containing 7.5-12.5 mass % Si and 0.1-2.0 mass % Cu, the remainder being Al and unavoidable impurities, wherein the amount of copper in the state of a solid solution in the matrix phase is regulated to 0.3 mass % or smaller. The composition may further contain at least 0.3 mass % Fe and/or at least 0.1 mass % Mg, provided that the sum of (Fe content) and (content of Mg among the impurities)×2 is 1.0 mass % or smaller and the sum of (Cu content), (content of Mg among the impurities)×2.5, and (content of Zn among the impurities) is 2.0 mass % or smaller. | 05-06-2010 |
| 20100101768 | HEAT TRANSFER PLATE AND METHOD OF MANUFACTURING THE SAME - A method of manufacturing a heat transfer plate ( | 04-29-2010 |
| 20100096438 | JOINING METHOD AND FRICTION STIR WELDING METHOD - A method of welding that realizes enhancements of airtightness and watertightness at weld area: and a method of welding and method of friction stir welding that attain an enhancement of welding operation efficiency/speed. There is provided a method of welding comprising the first primary welding step of carrying out a friction stir welding on the abutting portion (J | 04-22-2010 |
| 20100040900 | Friction-Welded Part and Method of Friction Welding - The invention provides a friction-welded part featuring easy design as well as a method of producing said part. The friction-welded part | 02-18-2010 |
| 20100021374 | PROCESS FOR PRODUCING HIGH-PURITY a-ALUMINA - Provided is a process for producing a high-purity α-alumina in which an Si content, an Fe content, a Ca content, and an Na content are simultaneously removed. The high-purity α-alumina is produced by burning aluminum hydroxide having an Na content of 0.11 mass % or less, an Fe content of 6 ppm or less, a Ca content of 1.5 ppm or less, and an Si content of 10 ppm or less as impurities in terms of alumina respectively, and having an average particle diameter of 55 μm or less at a burning temperature of 1,100 to 1,500° C. by using a burning vessel containing Al | 01-28-2010 |
| 20090260726 | HIGH STRENGTH ALUMINUM ALLOY FIN MATERIAL FOR HEAT EXCHANGER AND METHOD FOR PRODUCTION THEREOF - [PROBLEMS] To provide an aluminum alloy fin material for a heat exchanger, which has high strength and high heat conductivity after brazing, and is excellent in the resistance to sagging, erosion and self-corrosion and the in the sacrificial anode effect. | 10-22-2009 |
| 20090028766 | High Purity Anhydrous Aluminium Chloride and Process for Production Thereof - The present invention provides high purity anhydrous aluminium chloride which is freed as completely as possible from all the major impurity components (impurity metals) derived from starting aluminium used in industrial production of anhydrous aluminium chloride, wherein a content of the major impurity components except gallium (Ga), such as Na, K, Si, Fe, etc. is 1 ppm or less, and a purity of the anhydrous aluminium chloride as determined by subtracting a total content of the impurity components is 99.99% by weight or more, preferably 99.999% or more, and a process for production thereof. | 01-29-2009 |
| 20090021892 | Aluminum Plate For Aluminum Electrolytic Capacitor Electrode, Aluminum Electrolytic Capacitor, and Method For Manufacturing Aluminum Electrolytic Capacitor - An aluminum plate having an aluminum purity of not less than 99.98% by mass and an Fe content of 5 to 50 ppm with the balance consisting of unavoidable impurities is used to realize increased capacitance of an aluminum electrolytic capacitor, reduced height, and improved high frequency characteristics. In this aluminum plate, the total content of Fe in crystal/precipitate is 1 to 50% based on the original content, and the thickness of the aluminum plate is 0.2 to 1 mm. In the formation of a capacitor anode, the aluminum plate is subjected to alternate current etching so as to leave a core part having an average thickness of 50 to 150 μm in the center part in the thickness-wise direction to increase the surface area, followed by anodic oxidation. | 01-22-2009 |
| 20090010799 | CASTING ALUMINUM ALLOY AND INTERNAL COMBUSTION ENGINE CYLINDER HEAD - Disclosed are: a casting aluminum alloy that is excellent in elongation as alternative properties of a high cycle fatigue strength and a thermal fatigue strength and is suitably usable for a casting for which both of the excellent high cycle fatigue strength and the excellent thermal fatigue strength are required, for example, an internal combustion engine cylinder head; a casting made of the aluminum alloy; a manufacturing method of the casting; and further, an internal combustion engine cylinder head composed of the aluminum alloy casting and manufactured by the manufacturing method of the casting. The casting aluminum alloy contains, in terms of mass ratios, 4.0 to 7.0% of Si, 0.5 to 2.0% of Cu, 0.25 to 0.5% of Mg, no more than 0.5% of Fe, no more than 0.5% of Mn, and at least one component selected from the group consisting of Na, Ca and Sr, each mass ratio of which is 0.002 to 0.02%. | 01-08-2009 |
| 20080295922 | Aluminum Alloy Sheet Excellent in Resistance to Softening by Baking - An aluminum-magnesium alloy sheet having a high strength prior to baking treatment, and having a high bake softening resistance. Contains, as a percentage of mass, 2-5% magnesium, more than 0.05% and 1.5% or less iron, 0.05-1.5% manganese, and crystal grain refiner, the remainder comprising aluminum and inevitable impurities, and among the inevitable impurities, less than 0.20% silicon being contained, the total amount of iron and manganese being greater than 0.3%, the amount of iron dissolved in solid solution being 50 ppm or greater, 5000 or more intermetallic compounds with a circle-equivalent diameter of 1-6 μm existing per square millimeter, and the average diameter of the recrystallized grains being 20 μm or smaller. | 12-04-2008 |
