| 摘要 |
A laying head for forming a longitudinally moving hot rolled product into a helix comprises a tubular quill (24) having a central axis of rotation (A) and an interior surface surrounding a passageway (26) extending along said axis (A) and through said quill (24) a first end (26a) to an opposite second end (26b), said interior surface having a cylindrical section (28) leading from said first end (26a) to a radially outwardly flared section (30) which in turn leads to said second end (26b); a laying pipe (32) received in said passageway (26), said laying pipe (32) having an entry end (32a) aligned with said axis (A) at the first end (26a) of said passageway (26), and having a curved intermediate portion (32b) surrounded by the flared section (30) of the interior quill (24) surface, said laying pipe (32) projecting axially from the second end (26b) of said passageway (26) to a delivery end (32c) spaced radially from said axis (A), the flared section (30) of said interior surface being configured to conform to and to radially inwardly confine the curved intermediate portion (32b) of said laying pipe (32); and support means at the first end (26a) of said passageway (26) for radially supporting the entry end (32a) of said laying pipe (32). <IMAGE> |
