| 摘要 |
1,089,162. Making bladed rotors. ROLLSROYCE Ltd. Jan. 10, 1966, No. 1135/66. Heading B3A. [Also in Divisions B5 and F1] A method of making a bladed rotor, e.g. of a gas turbine engine compressor, comprises coating a plurality of fibres, employing the coated fibres in the formation of both the blades and the hub of the rotor, and sandwiching the hub between axially spaced metal discs 31, 32, Fig. 2. The discs are secured to the hub by high temperature epoxy or polyimide resin and also, if desired, by bolts, rivets or the like. The discs are welded to members 33, 34, 35. The hubs and blades are formed from bundles of fibres, opposite ends 23a, 23b, 23c, Fig. 3, of each bundle being used in the formation of different blades and the central part of each bundle being divided into two spaced portions 26, 27 used in the formation of the hub. The portions 26, 27 are flattened and interwoven with other such portions, and the fibres are then hot-pressed together. The fibres may be of ceramic constituted by oxide, nitride or carbide, or of sapphire, silicon nitride, silicon carbide, silica, graphite or boron. They are individually coated by silver, nickel, iron, titanium, platinum, columbium, aluminium or alloy thereof, or an epoxy, polyimide, polyimidazole, polyquinoxaline or polythiazole resin. |
