| 摘要 |
A heat exchanger comprises a plurality of flat tubes (1), a pair of hollow headers (5 and 6) connected to both ends of each of the flat tubes in fluid communication with them and at least one fastener (10, 11) secured to the headers. Each fasteners (10, 11) comprises at least one self-retainable embracing portion capable of being forced to fit on the header when the fastener is urged towards a side surface of the header, so that the embracing portions gripping the header are brazed thereto. The fasteners (10, 11) can be temporarily fixed, without aid of any special tools, on a heat exchanger body before they are "one-shot" brazed one to another in an oven, thus rendering easy the manufacture of heat exchanger. Due to the special tools dispensed with, a greater number of temporarily assembled heat exchangers can be accommodated in one oven, thus improving to a remarkable degree the productivity in manufacture of the heat exchanger. <IMAGE> |
