| 摘要 |
<p>In a method and an apparatus for producing helically-wound lock-seam tubing (15) from a metal strip (12) having longitudinal edge portions (16a, 16b), the strip (12) is fed to a forming head (14) and formed into helical shape. A lubricant is locally supplied (at 34) on that side of the strip (12) which forms the outside of the tube (15), said lubricant being supplied over only a limited portion of the width of the strip (12).</p> |
