FIELD: tube rolling. SUBSTANCE: pilgrim roller groove is provided with a vertical tap relative vertical axis of the groove. The tap parameters at the cogging area are equal to the same of the side horizontal tap. Such a design enables to distribute the metal spreading through the roll groove cross-section perimeter. EFFECT: increased pipe quality; increased output. 6 dwg
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Authors
Dates
1994-01-30—Published
1992-04-16—Filed