時間：2011-03-11 23:18來源：藍(lán)天飛行翻譯 作者：航空 點擊：次
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tinner’s rivet. A flat-headed solid rivet used in commercial sheet metal work. A tinner’s rivet is driven by holding its flat head on an anvil and peening the end of the shank with a peening hammer. tinplate. Thin sheets of steel coated on one or both sides with a thin layer of tin. tinsel cord. A type of extra-flexible electric cord used for the leads in headphones. Tinsel cord is made of strips of tinsel, or metal foil, wound around a strong, flexible center cord. The tinsel and the center cord are enclosed in a braided cloth sheath. tin snips. A commonly used name for hand-held metal-cutting shears. Most tin snips have short blades and relatively long handles to give enough leverage for a person to cut fairly heavy sheet metal. tip cap (helicopter rotor component). A removable cap mounted on the tip of some helicopter rotor blades. These tip caps often hold the weights used for spanwise blade balance. tip path plane (helicopter rotor). The path followed by the tip of the rotor blades as they rotate. tip speed (helicopter rotor blade). The rotative speed of a rotor blade, measured at its tip. tire (landing gear component). A ring, usually made of rubber or rubber compound, that fits around a wheel and serves as a cushion at the point the wheel touches the surface over which it rolls. Most tires are made so that they form a chamber which is filled with compressed air. The compressed air acts as a shock absorber. tire bead. Bundles of high-strength steel wire used as a foundation for an aircraft tire. The cords of the tire wrap around the bead wires to tie the body of the tire to the bead. Rubber is molded around the bead wires to form an air-tight seal with the bead seat area of the wheel. TIT (turbine inlet temperature) (gas turbine engine parameter). The temperature of the gases from the combustion section of a gas turbine engine as they enter the turbine inlet guide vanes or the first stage of the turbine. TIT is the highest temperature inside a gas turbine engine and is one of the limiting factors of the amount of power the engine can produce. TIT is difficult to measure, but exhaust gas temperature, or EGT, which is the temperature of the gas as it leaves the turbine, relates to TIT and is normally the parameter measured. titanium. A strong, brittle, lustrous, silvery-gray, metallic chemical element. Titanium’s symbol is Ti, its atomic number is 22, and its atomic weight is 47.90. Titanium is malleable when it is hot, but is hard and brittle when it is cold. Titanium is used in its pure state or as an alloy with other metals to increase their strength at high temperatures. Titanium is also used in the manufacture of some ceramic components. titanium white (paint pigment). A brilliant white paint pigment that contains no lead. Titanium white contains titanium dioxide, which is often mixed with barium sulfate and zinc oxide. title block (aircraft drawing). An information block placed in the lower right-hand corner of an aircraft drawing. This block includes the part number, the part name, and the names of the engineer, draftsman, and checker. |
