JPS6415229A - Production of twisted non circular sectional rolled stock - Google Patents

Abstract

PURPOSE:To give a twisting to a rolled stock and to facilitate the production of a twisted rolled stock in non-circular cross section by pushing the rolled stock of non-circular cross section subjected to rolling into the guide hole of the entry guide of the laying type coiler rotated by a pinch roll and winding it on a reel by passing it inside a spiral pipe. CONSTITUTION:A heated rolled steel is rolled in a square steel 2 by a rolling roll 1 and transferred to the position of a pinch roll 3, which draws the square steel 2, pushes it into the guide hole 9 of the entry guide 5 of a laying type coiler 4, and guided to a spiral pipe by the entry guide 5. On the other hand, the entry guide 5 and spiral pipe 6 are rotated by a motor 8, so a twist is given at the pitch corresponding to the rotation of the spiral pipe 6 to the square steel 2 between the pinch roll 3 and the spin starting part of the spiral pipe 6. And the square steel 2 released from the spiral pipe 6 is wound by a winding frame 7.