COPPER ALLOY FOR FIN OF HEAT EXCHANGER OF AUTOMOBILE

• Main Authors: KOMATA KENICHI, OOYAMA YOSHIMASA, OOGURI AKIHIRO, AKASAKA KIICHI
• Format: Patent
• Language: English
• Published: 28.08.1985
• Subjects: ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; TREATMENT OF ALLOYS OR NON-FERROUS METALS

PURPOSE:To provide the titled copper alloy excellent in heat conductivity and corrosion resistance, having good processability and making it possible to prolong the life of a heat exchanger and to reduce the wt. thereof, obtained by adding a specific amount of Y and In, Ni, Fe, Co or Cr to Cu. CONSTITUTION:A copper alloy for the fin of the heat exchanger of an automobile consists of 0.005-1.0wt% Y and 0.005-0.3% one ore more of In, Ni, Fe, Co or Cr and is one of which the corrosion resistance is enhanced by suppressing the formation and growth of Cu2O in air having chlorine, nitrogen oxide and sulfur dioxide gas mixed therein by adding a small amount of Y without too much lowering the inherent heat conductivity of Cu and further enhanced by the synergistic effect with Y brought about by adding a small amount of In, Ni, Fe, Co or Cr alone or in a combination.