TUBE FOR HEAT EXCHANGER AND MANUFACTURING METHOD THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a tube for a heat exchanger which enables efficient insertion and disposition of a thermal conduction accelerating member to be inserted thereinto and reliable positioning thereof. SOLUTION: The thermal conduction accelerating member of which the difference between the inside and outside diameters is so set as to facilitate insertion is inserted into the tube, without being fitted therein. Then, at least one part in the longitudinal direction of the tube is pressed inward to deform the tube slightly and thereby a caulked part is formed between the accelerating member and the tube.