METHOD OF MAKING A LANCED AND OFFSET FIN

摘要

SLOW PRODUCTION SPEEDS IN THE MANUFACTURE OF LANCED AND OFFSET FINS FOR USE IN HEAT EXCHANGER TUBES ARE ELIMINATED THROUGH THE USE OF A METHOD OF FORMING THE FINS INVOLVING A PLURALITY OF ROLL ESSEMBLIES LOCATED ALONG A FORMING PATH WHICH MAY OPERATE ON A STRIP OF FORMING MATERIAL OF INDETERMINATE LENGTH. AFTER BEING FORMED THE FIN MAY BE CUT TO ANY DESIRED LENGTH.(FIG 1)