A METHOD OF BRAZING A PLATE HEAT EXCHANGER USING SCREEN PRINTED BRAZING MATERIAL ; A PLATE HEAT EXCHANGER MANUFACTURED BY SUCH METHOD

摘要

A plurality of interplate flow channels for the heat exchange medium and a plurality of pressures of a plurality of ridges R and a plurality of grooves G to form a plurality of contact points between the heat exchange plates The method for brazing a plate-type heat exchanger including a plurality of heat exchange plates (110, 115) is characterized in that a plurality of the inter-plate flow channels are disposed in the vicinity of the corners of the plurality of heat exchange plates Wherein the plurality of convex portions (R) of the adjacent heat exchange plates (110, 115) and the plurality of concave portions (120) are selectively in fluid communication with the port openings (120, 130, 140, 150) Calculating or measuring all the positions of a plurality of said contact points between said plurality of contact points and said plurality of said contact points, (B) brazing material, forming a heat exchange plate laminate by laminating a plurality of the heat exchange plates (110, 115) on which the brazing material is coated, a heat exchange plate (110, 115 ) Heating the laminate of the heat exchange plates (110, 115) at a temperature sufficient to melt the brazing material (B), and cooling the brazing material (B) to solidify the plurality of heat exchange plates And cooling the stack of heat exchange plates (110, 115) so that the heat exchange plates (110, 115) bind to each other.