| 摘要 |
603,307. Making wires. SOUDURE ELECTRIQUE AUTOGENE SOC. ANON. Sept. 19, 1945, No. 24294. Convention date, Jan. 19, 1940. [Classes 83 (ii) and 83 (iv)] Covering ; corrugating; jointing by rolling ; welding.-A method of making a wire or a strip of small cross-section comprises turning a ribbon or band of metal from a cylinder, pleating the band longitudinally, bringing the faces of the pleats together so that they are in contact and then rolling the mass thus obtained to the desired section. A cylinder 2 of the metal is turned so that a tool 3 removes a thin band 4 which is passed through furnace 5 and between rolls 6 and is then corrugated or pleated longitudinally by a series of pairs of rollers 7-11, the faces of the pleats then being pressed together by rolls 12 having their axes at right angles to those of the rolls 6-11. The pairs of rolls 6-11 are provided with grooves of a triangular shape the grooves of succeeding pairs being narrower but deeper. The strip then passes through rolls 14 and final rolls 13 which shape the work to the required profile. Rolls 13 and 14 may be connected to a source of electric power so that the work is heated to welding temperature when it reaches rolls 13. Alternatively the welding together of the contacting faces may be carried out by the rolls 12, the current then being passed through the work from the rolls 6 to the rollers 12 or 13. The rolls 14 and 13 could then be omitted. The latter arrangement also facilitates pleating. Making cored wire.-If desired a wire 20 of a different metal may be fed into one of the pleats between the rolls 11 and 12 to form a core in the completed wire. A high tension cable comprising an aluminium wire with a steel core could be produced in this way. |
