Method of manufacturing a heat exchanger

Details Method of manufacturing a heat exchanger Method of manufacturing a heat exchanger

B - Operations, Transporting

23

P

26/145

B23P 15/26 (2006.01) B21D 26/02 (2006.01) B21D 53/02 (2006.01) F28F 9/06 (2006.01)

Patent

CA 1204921

ABSTRACT OF THE DISCLOSURE In order to provide a simple and expeditious method of manufacturing a heat exchanger which comprises a plurality of heat exchange tubes in substantially parallel, spaced apart stacked relationship, with the end portions of each heat exchange tube being sealingly disposed through a respective pair of aligned apertures in two spaced end walls, the end portions of each heat exchange tube are urged in one direction through the apertures in resiliently deformable plates of the end walls, the end portions of the tube being an interference fit in these apertures in the resiliently deformable plates so that the edge portions of the resiliently deformable plates bounding the apertures therein are resiliently deformed. Thereafter, each heat exchange tube is moved in the opposite direction to remove the resilient deformation of the edge portions of the resiliently deformable plates bounding the apertures therein, thereby sealingly to compress these edge portions of the resiliently deformable plates against the end portions of the tube. The resiliently deformable plate of each end wall may be sandwiched between two metal plates which may subsequently be urged together thereby further to compress the resiliently deformable plates of the end walls against the end portions of the heat exchange tubes.

414774

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