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Priority to TW84106036ApriorityCriticalpatent/TW263457B/en
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A process of producing star-type heat exchange fins which mainly sequentially comprises the step of forming protrudent lips, which comprises forming multiple enclosed protrudent lips on the main body of fins, the step of cutting which comprises cutting the enclosed face of each protrudent lip into several division plates, the step of forming joint holes which comprises pushing all division plates on each protrudent lips outward to form joint holes, and the step of forming auxiliary fins which comprises outwardly bending all division plates on each protrudent lip to form auxiliary fins connected on the circumference of the joint holes.
TW84106036A1995-06-131995-06-13Process of producing star-type heat exchange fins and its structure
TW263457B
(en)