Metodo para fabricar barras de refuerzo roscadas, comprende: proporcionar una barra de paso principal que comprende un cuerpo que se extiende a lo largo de un eje longitudinal, en donde al menos una porcion del cuerpo tiene una seccion transversal que define un plano que cruza con el eje longitudinal, en donde una primera parte del plano tiene un primer ancho, una segunda parte del plano tiene un segundo ancho, una tercera parte del plano tiene un tercer ancho; un producto; un sistema.

摘要

Embodiments of the invention comprise forming a billet from molten steel and hot rolling the billet to reduce the cross sectional area of the billet. Thereafter, the billet is hot rolled into a lead pass bar having a cross-sectional area comprising a reduced width dimension located adjacent to the center longitudinal axis of the bar. In one embodiment of the invention, the billet can be formed into a lead pass bar having a cross-sectional area in the shape of an hourglass or peanut by feeding the billet through a first set of rolls. After the lead pass bar is formed, it is passed through a second set of rolls in order to form the substantially continuous threaded rebar without longitudinal ribs. The cross-sectional area of the lead pass bar helps to produce a substantially continuous threaded rebar product without longitudinal ribs using standard rebar manufacturing tooling and equipment.