Manufacturing method for heat exchanger
AssigneeDaikin Industries, Ltd.
InventorsNobuyasu Ichikawa, Hironori Kubo, Tatsuya Omaki, Ryou Kouyama, Fumio Yabuuchi
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Abstract
A heat exchanger includes a plurality of fins arranged in a thickness direction and a plurality of heat transfer tubes penetrating the plurality of fins, the heat transfer tubes being made of aluminum. A method for manufacturing the heat exchanger includes connecting a first open end portion of open end portions of the heat transfer tubes protruding from the fins and a first connection pipe made of aluminum, and first brazing a first joint between the first open end portion and the first connection pipe by heating the first joint with a first burner that is movable around the first joint.
Claims12
A method for manufacturing a heat exchanger including a plurality of fins arranged in a thickness direction and a plurality of heat transfer tubes penetrating the plurality of fins, the heat transfer tubes being made of aluminum, the method comprising:
- connecting
- a first open end portion of open end portions of the heat transfer tubes protruding from the fins, and
- a first connection pipe made of aluminum;
- connecting
- a second open end portion of the open end portions of the heat transfer tubes protruding from the fins, and
- a second connection pipe made of aluminum and having a lower heat capacity than the first connection pipe;
- performing a first brazing of a first joint between the first open end portion and the first connection pipe by heating the first joint with a first burner that is movable around the first joint;
- and
- performing a second brazing of a second joint between the second open end portion and the second connection pipe by heating the second joint with a second burner that is stationary,
- the second brazing being performed after the first brazing.
Dependencies are inferred from the claim text.