LAMINATION TYPE HEAT EXCHANGER

PURPOSE:To permit to prevent the damage of brazed part as well as the thermal deformation of core section upon welding a header and facilitate assembly as well as handling of the heat exchanger by a method wherein a side bar and an angle member are clamped by screws through brazing agent between them and, thereafter, a header is welded to a flange. CONSTITUTION:The header is welded to the flange 36, formed by connecting the extended parts 18, 18a of lower and upper plates 10, 11 and the extended parts 19, 20 of the angle members 13, 14 to the inlet and outlet sections of the core 12, therefore, the welding part is apart from the brazing parts between the angle members 13, 14 and the side bars 9, 35 and the flange 36 acts as a thermal buffer member. Accordingly, brazing temperature upon welding is kept in low and the damage of core due to the fusion of the brazing agent may be prevented The thermal deformation of the core due to the sudden temperature change of fluid upon starting and stopping is absorbed by the flange 36 and the mechanical stress affecting on the header may be reduced, further, the assembly of the heat exchanger may be facilitated.