| 摘要 |
In the production of a tubular mould for the continuous casting, e.g. of steel, made of copper or a copper alloy, a flange (2) is attached to one end of a pipe (1) by electron beam welding. This method of welding produces a weld seam which, in contrast to welding methods previously used, is extremely narrow and which therefore does not appreciably affect the hardness of the pipe (1) where this has previously been hardened by cold working, and does not produce any appreciable distortion of the pipe (1) and/or flange (2). By suitable shaping of the flange (2) and/or the end of the pipe (1), welding can be effected either at the end face of the pipe, (as shown), or peripherally. <IMAGE> |
