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An architectural model made from foamcore on a styrofoam base. Foamcore is commonly used to produce architectural models, prototype small objects and to produce patterns for casting. Scenery for scale model displays, dioramas, and computer games are often produced by hobbyists from foamcore. Photos on a foamcore backing.
Foams are two-phase material systems where a gas is disbursed in a second, non-gaseous material, specifically, in which gas cells are enclosed by a distinct liquid or solid material. [1]: 6 [2]: 4 [3] The foam "may contain more or less liquid [or solid] according to circumstances", [1]: 6 although in the case of gas-liquid foams, the gas ...
By using vacuum impregnation on uncured epoxy, winding-to-winding, winding-to-core, and winding-to-insulator air voids are eliminated. The cured epoxy is an electrical insulator and a much better conductor of heat than air. Transformer and inductor hot spots are greatly reduced, giving the component a stable and longer life than unpotted product.
Foam concrete is a versatile building material with a simple production method that is relatively inexpensive compared to autoclave aerated concrete. [1] Foam concrete compounds utilising fly ash in the slurry mix is cheaper still, and has less environmental impact. Foam concrete is produced in a variety of densities from 200 kg/m 3 to 1,600 kg ...
Injection moulding (U.S. spelling: injection molding) is a manufacturing process for producing parts by injecting molten material into a mould, or mold. Injection moulding can be performed with a host of materials mainly including metals (for which the process is called die-casting), glasses, elastomers, confections, and most commonly ...
Launched. November 2002; 21 years ago (2002-11) The Vietnamese Wikipedia (Vietnamese: Wikipedia tiếng Việt) is the Vietnamese-language edition of Wikipedia, a free, publicly editable, online encyclopedia supported by the Wikimedia Foundation. Like the rest of Wikipedia, its content is created and accessed using the MediaWiki wiki software.
Geopolymer. A geopolymer is a vague psuedo-chemical term used to describe inorganic, typically bulk ceramic -like material that forms covalently bonded, non-crystalline (amorphous) networks, often intermingled with other phases. Many geopolymers may also be classified as alkali-activated cements or acid-activated binders.
Luffa is a genus of tropical and subtropical vines in the pumpkin, squash and gourd family (Cucurbitaceae). In everyday non-technical usage, the luffa, also spelled loofah[3] or less frequently loofa, [4] usually refers to the fruits of the species Luffa aegyptiaca and Luffa acutangula.