Тернопольский Национальный Технический Университет Имени Ивана Пулюя
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Shaping By String And By Release Of Stress In Plastics And The Like
(AREA)
Abstract
A method of manufacturing corrugated screw blanks, in which a corrugated tape is pressed out along the width by rolls which form therebetween a wedge-shaped gap, a corrugated spiral is formed and stretched for a pitch. Prior to stretching for the pitch the corrugated spiral is wound on a holder rib.
UAU201104653U2011-04-152011-04-15Method of manufacturing corrugated screw blanks
UA64532U
(en)