| 摘要 |
Disclosed is a method for connecting heat-radiating fins and tubes for a radiator by a simple procedure, thus shortening a working time taken to connect the heat-radiating fins and the tubes, improving the productivity of a radiator manufacturing process, allowing the radiator to be mass-produced, and reducing the production cost of the radiator. The method comprises the steps of (a) vertically arranging plural heat-radiating fins (20) provided with plural tube holes (21) with an inner diameter slightly larger than the outer diameter of the tube (10); (b) inserting the tubes (10) into the tube holes (21); (c) inserting tube expanding tips (30) into ends of the tubes (10); and (d) expanding the inner diameters of the tubes (10);and (d) expanding the inner diameters of the tubes (10) by simultaneously pulling down the tube expanding tips (30) from the other ends of the tubes (10) so that the tubes (10) stick to the inner walls of the tube holes (21). |
