| 摘要 |
1,219,032. Welding by fusion. BROWN, BOVERI & CO. Ltd. 29 April, 1969 [30 April, 1968], No. 21498/69. Heading B3R. [Also in Division F4] In a combustion chamber lining member comprising a plate 3 and cooling elements 1, such as fins, webs or studs, secured on the side of the plate remote from its combustion side, the plate 3 is formed entirely of weld-deposited metal into which extend ends of the cooling elements. Adjacent lining members are adjoined edge-to-edge to form the inner of two nested jackets. The cooling elements 1 are positioned in a jig 2 and the plate 3 is formed on the ends of the cooling elements by one or more layers of side-by-side weld runs using filler wire or strip. Where the cooling elements are fins, the runs of first and, if applied, second layers are preferably disposed respectively transversely and longitudinally of the fins. As shown, thick end elements having hooks 4 are bent out at their plate ends to form part of the plate edges. The plate and the cooling elements may be of the same metal, or may be of different metals, e.g. the plate weld metal may be heat-resistant and the cooling element metal may be of good heatconductivity. In order to prevent welding-on of the jig, the latter may be of good heat-conductivity metal, e.g. copper, and/or separate jig cooling may be provided. |
