INITIAL SETTING METHOD OF REFRIGERANT ENTRANCE/EXIT PIPE ONTO HEADER PIPE FOR HEAT EXCHANGER

摘要

The present invention relates to a method for the initial setting of a refrigerant inlet/outlet pipe onto a header pipe for a heat exchanger to improve the initial setting property and the brazing junction property of the refrigerant inlet/outlet pipe with respect to the header pipe. The method utilizes a support board that is installed through the refrigerant tube connection holes to support and press a pipe expanding tool which deforms an end of the refrigerant inlet/outlet pipe on an interior side of the header pipe.