| 摘要 |
PURPOSE:To prevent the inclination of a refrigerant collecting tube by a method wherein a projecting part, supporting said tube, is provided by press work to make steps at both left and right side ends of a flat special tubes upon assembling the flat special tubes and the refrigerant collecting tube and brazing them. CONSTITUTION:Both left and right ends of the flat special tubes 1 is worked by pressing so as to make steps by a dimension B in accordance with a specified dimension A to provide the projected part 1b. The long hole 3a of the refrigerant collecting tube 3 has the same configuration as the shape of the flat tube 1 after the step-making work. Next, these flat special tubes 1 and the refrigerant collecting tubes 3 are brazed integrally in a furnace for assembling. Even after the brazing, the refrigerant collecting tubes 3 may be prevented from being inclined by the projecting part 1b of the flat special tubes 1. |
