| 摘要 |
A method for making bicycle frames from tubes made of a light non-ferrous material by preassembling the various elements and joining them together by braze welding in a salt bath. The basic tubes (1, 2, 3, 4, 5, 6, 7) are mutually arranged in such a way that a connection is achieved by the end of one tube abutting the peripheral surface of the corresponding element, and/or being partially or completely inserted therein, the weld metal being provided in the contact areas. The supporting element comprises an opening (20) within the connection area so that the salt bath can circulate inside the whole of the frame during the braze welding process.
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