MILL FOR ELECTRIC WELDING OF TUBES

FIELD: tube production, particularly in electric welding mills. SUBSTANCE: mill includes mechanism for working strip edges, shaping and welding stands and contact electric current leads. Mechanism for working strip edges includes metallic brushes and annular needle milling cutters whose working surf...

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Hauptverfasser: KOZLOVSKIJ A.M, BLINOV JU.I, ONGEMAKH G.I, CHERNYSHEVICH S.L, BUZDALIN V.P, SHURINOV V.A, PYKHOV S.I, BEZZUBOV A.V
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:FIELD: tube production, particularly in electric welding mills. SUBSTANCE: mill includes mechanism for working strip edges, shaping and welding stands and contact electric current leads. Mechanism for working strip edges includes metallic brushes and annular needle milling cutters whose working surfaces are arranged in parallel relative to plane of strip edges. Width of working surface of each metallic brush is no less than width of electric current lead. Radial width of working surface of each milling cutter is less than half of its outer radius. Zones of working strip edges are arranged on line passing through middle of mean radius of milling cutter normal relative to line. EFFECT: enhanced quality of welded seam of tubes. 1 cl, 3 dwgo