| 摘要 |
PURPOSE:To simplify a core structure, particularly the form of a joint between an insert and core plate, prevent generation of clearance therebetween due to differences in thermal expansion at the time of soldering to keep close adhesion therebetween, ensuring stable soldering performance, in relation to an improvement in soldering of a core element of a heat exchanger in the form suitable for particularly a radiator of automobile. CONSTITUTION:A notch 7 is provided on an insert at a point nearer to an end than a winding point of a wire 5 for holding a core during soldering, whereby the rigidity of the insert 3 during soldering is lowered to facilitate bending deformation of the insert so that the differences in thermal expansion between a wire jig 5 and a core plate 4 is absorbed by the bending deformation, while soldering is being performed. |
