The present invention relates to an aluminium alloy for extrusion moulding having outstanding strength and workability, in which the extrusion moulding properties and the mechanical strength and workability are improved so as to be suitable for production as a cityscape material such as a streetlight or a railing, fence or handrail. The aluminium alloy of the present invention comprises 0.95-1.05wt% of Si, 0.85-0.95wt% of Mg, 0.65-0.75wt% of Mn, 0.1-0.2wt% of Cu, 0.1-0.2wt% of Zn, 0.13-0.18wt% of Cr, no more than 0.25wt% of Fe and no more than 0.03wt% of Ti, as well as unavoidable impurities in amounts of no more than 0.02wt% for each separate constituent and no more than 0.10wt% in total, and a balance of Al. The present invention exhibits the characteristic that the extrusion moulding properties and the mechanical strength and workability are substantially improved, by having the content of Mg, Mn and Cu adjusted to a composition distinctively different from an existing 6000 series aluminium alloy.
도 1은 종래 엣지형 엘이디 디스플레이용 바텀 새시와 바텀 바 및 LED 바의 구조를 나타낸 사시도. 도 2는 종래 엣지형 엘이디 디스플레이용 LED 바를 배면에서 나타낸 배면 사시도. 도 3은 종래 엣지형 엘이디 디스플레이용 바텀 바에 LED 바가 결합되는 상태를 나타낸 도면. 도 4는 종래 엣지형 엘이디 디스플레이용 바텀 바에 LED 바가 결합되는 상태를 나타낸 사시도. 도 5는 본 발명 엣지형 엘이디 디스플레이용 바텀 새시의 바텀 바의 결합돌기를 도브테일 형상으로 성형하는 금형부와 도브테일 성형장치가 설치된 상태를 나타낸 도면. 도 6은 본 발명 엣지형 엘이디 디스플레이용 바텀 바의 도브테일 성형장치의 각 구성이 결합된 상태를 나타낸 사시도. 도 7은 본 발명 엣지형 엘이디 디스플레이용 바텀 바의 도브테일 성형장치의 각 구성이 분리된 상태를 나타낸 사시도. 도 8은 본 발명 엣지형 엘이디 디스플레이용 바텀 바의 도브테일 성형장치의 각 구성이 결합된 상태를 단면으로 나타낸 반단면도. 도 9 내지 도 14는 본 발명 엣지형 엘이디 디스플레이용 바텀 바의 도브테일 성형장치 및 금형부에 의해 바텀 바의 결합돌기가 도브테일 형상으로 성형되는 상태를 순차적으로 도시한 도면. 도 15는 본 발명 엣지형 엘이디 디스플레이용 바텀 바의 결합돌기가 도브테일 형상으로 성형된 상태의 바텀 새시를 나타낸 측면도. 도 16a와 도 16b는 본 발명 금형장치부에 금형부와 도브테일 성형장치가 설치된 상태를 나타낸 정면도와 평면도.
The present invention provides a method for manufacturing a stiffener-combined LNG storage tank, the LNG storage tank manufactured by the method, and an LNG storage tank module manufactured by using the same, wherein: in order to combine a "main board and a stiffener" of an LNG storage tank, an H-shaped plane having both ends of a web, on which a first flange and a second flange which is longer than said first flange are formed, is extruded by molding by using an aluminum alloy material; said aluminum alloy material is heated at 570-650°C, which is a solidus temperature or more, such that the aluminum alloy material is isothermally maintained and is extruded by molding in the shape of the H-shaped plane through an extrusion mold which has an extrusion molding unit of an H-shaped plane form; and a plurality of H-shaped planes are welded between second flanges such that the second flanges become main boards of the LNG storage tank, whereby the first flange and the web function as stiffeners.
The present invention relates to: a method in which an extruded aluminium alloy material is used to produce a T-shaped reinforcing material for reinforcing the strength of an LNG storage tank built into an LNG tanker; the reinforcing material; and an LNG storage tank module made by using same. Provided is a production method for a T-shaped reinforcing material for an LNG storage tank, wherein an aluminium alloy starting material is extruded in the form of a T-shaped reinforcing material by being passed through an extrusion mould, which has an extrusion-moulding part in the form of the T-shaped reinforcing material, while being heated to and isothermally maintained at a temperature of between 570 and 650°C, which is above the solidus line. Also provided are: a T-shaped reinforcing material which is produced by means of the production method; and an LNG storage tank module made by using same.
The present invention relates to a cooling apparatus in which a heat pipe and heat sink are coupled, and the structure of which enables improved productivity, wherein said cooling apparatus can reduce the number of processes and the time required for processing and assembly, while reducing the amount and weight of extruded material for each component constituting the cooling apparatus. The cooling apparatus in which a heat pipe and heat sink are coupled includes: a heat sink including a heat dissipation fin; a base plate disposed at the lower end of the heat sink; a heat pipe embedded in a back surface of the heat sink and base plate; and vertical and horizontal covers covering the back surface of the heat sink and the base plate when the heat pipe is embedded in the back surface of the heat sink and base plate. The heat sink is extruded such that a first coupling end is formed at an edge of the lower end thereof. The base plate is extruded such that a second coupling end is formed and fits into the first coupling end. The first and second coupling ends are friction-stir-welded together at the bottom surfaces thereof when the second coupling end is fitted into the first coupling end. Each of the vertical and horizontal covers are extruded such that each of the vertical and horizontal covers has a thickness rib on a corner thereof, and the thickness of the other portion of each of the vertical and horizontal covers is uniform.
F25D 19/00 - Arrangement or mounting of refrigeration units with respect to devices
F28D 15/02 - Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls in which the medium condenses and evaporates, e.g. heat-pipes
H01L 23/36 - Selection of materials, or shaping, to facilitate cooling or heating, e.g. heat sinks
H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
6.
REINFORCED FRAME FOR DISPLAY PANEL USING ALUMINUM ALLOY-EXTRUDED MATERIALS
The present invention relates to a reinforced frame for supporting a display panel, which is made of aluminum alloy-extruded materials. More particularly, a rectangular metal-reinforced frame for supporting a display panel such as for a LCD, PDP, etc. includes: a pair of parallel bar-shaped long frame members (21) which are made of aluminum alloy-extruded materials; a pair of parallel bar-shaped short frame members (22) which are made of aluminum alloy-extruded materials; and protrusions (23) where the long and short frame members contact each other (21)(22) and the body of the display panel is raised more than a non-contact part therebetween. In a pair of bar-shaped short frame members, both end portions of the short frame members are placed over both end portions of the long frame members in a rectangular shape, and then joined by rotational friction welding.
Disclosed is a reinforcement frame for a display panel using aluminum alloy extrusion members and an apparatus and a method for manufacturing the same, wherein, while a number of unitary aluminum alloy extrusion members abut one another, a welding head is used to cause the abutting portions to undergo friction resulting from high-speed rotation so that the members are melted and welded to one another by the resulting frictional heat.
B23K 20/12 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by frictionFriction welding
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