To provide a joint assembly of pipe material can properly preventing fluid leakage from occurring at a connecting part of the pipe material because of aging corrosion, a connecting method thereof, and a heat exchanger for refrigeration cycle equipped with the joint assembly.
A joint assembly 40 includes a fitting inner pipe material 50 and a fitting outer pipe material 60 surrounding the fitting inner pipe material 50. Meanwhile, a sacrificial corrosion protection layer 53 is formed on a circumference surface 52 of the fitting inner pipe material 50, and a non-corrosion protection part 54 is formed in such a manner as to surround the fitting inner pipe material 50 in the vicinity of a joint with the fitting outer pipe material 60. By brazing the non-corrosion protection part 54 of the fitting inner pipe material 50 with the fitting outer pipe material 60, the fitting inner pipe material 50 and the fitting outer pipe material 60 are connected with each other.
NOMA TOMIYUKI
TANIGUCHI KATSUSHI
YAMAMOTO KENSHO
SUGIO TAKASHI
TAKAHASHI MASATOSHI
