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US 6,484,398 B2Granted
Heat exchanger tube manufacturing method
AssigneeMori Machinery Co., Ltd.
InventorsHiroaki Mori, Hirofumi Okamoto
Life of this patent
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Abstract
A heat exchanger tube manufacturing method to manufacture heat exchanger tubes in a production line. The method includes the steps of molding a plurality of dimples in a plate material, which is payed out continuously, folding back the molded plate material along an axis extending in the direction in which the plate material is payed out to form the molded plate material into an intermediate tube body and cutting the intermediate tube body into parts of a predetermined length.
Claims5
A method of manufacturing heat exchanger tube comprising the steps of:
- continuously providing a metal plate material;
- dimpling the metal plate material provided continuously into molded sections having a plurality of dimples and non-molded sections without dimples at predetermined intervals in the metal plate material;
- folding back the metal plate material around an axis Bonding in a direction in which the metal plate material is provided and for the metal plate material into an intermediate tube body,
- cutting the intermediate tube body into parts of a predetermined length;
- and
- wherein continuously providing said molded and non-molded sections of said metal plate material in every predetermined interval is accomplished by a pair of toothed rolls having toothless non-molded surfaces which correspond with each other.
3 more elements
Dependencies are inferred from the claim text.