Thread Rolling Fixed Length Spiral Rib Steel Wire

摘要

The present invention discloses a thread rolling fixed length, spiral rib steel wire used in prestressed concrete sleepers and track plates, including a 2.5 m long spiral rib prestressed steel wire, where both ends of said steel wire have continuous external thread section whose length is 30±2 mm, wherein, the surface of said steel wire has four parallel winding spiral ribs whose cross section is trapezoidal and lead is 41˜55 mm, the nominal diameter of said steel wire is 9.5 mm, 10.0 mm, or 10.5 mm, and the elastic-limit of said steel wire is larger than 1200N/mm2.

主权项

1. A thread rolling fixed length spiral rib steel wire, comprising: a 2.5 m long spiral rib prestressed steel wire, where both ends of said steel wire having continuous external thread section whose length is 30±2 mm, wherein, the surface of said steel wire has four parallel winding spiral ribs whose cross section is trapezoidal and lead is 41˜55 mm, the nominal diameter of said steel wire is 9.5 mm, 10.0 mm, or 10.5 mm, and the elastic limit of said steel wire is larger than 1200N/mm2.