Large-space hole-free rolling device and rolling method of bar production line

Abstract

The invention discloses a large-space hole-free rolling device and a rolling method of a bar production line. The rolling device comprises a box body, wherein the box body is installed on a base; a horizontal roller bracket is arranged at one end of the box body; a guide point is arranged at the other end of the box body; a vertical guide roller is arranged on the box body; a horizontal guide roller is arranged on the horizontal roller bracket; and a horn mouth is connected with the horizontal roller bracket. The rolling method comprises the following steps of: heating, reserving a distance of 38m-45m between a rolling machine group and a fine rolling machine group, cooling and finishing. The rolling production line cn be used for implementing production successfully, adopts a high-technical production technique, breaks through the bottleneck of hole-free rolling, lays basic theories for industrial large-scale production, and improves theories of metal machining deformation in China. The rolling device is high in rolling capacity and low in production cost. Rolling rollers can be repeatedly used, so that the rolling roller consumption is reduced; the production operation efficiency and the production capacity are improved; the power consumption of a motor is reduced; and the market competitiveness of enterprises is improved.

Description

technical field [0001] The invention belongs to the field of metallurgy, and in particular relates to a rolling device and a rolling method suitable for large-pitch and non-perforated bar production lines in iron and steel plants. Background technique [0002] Non-grooved rolling is a brand-new rolling technology, which refers to rolling a rolled piece with a large height-to-width ratio on a roll without grooves. Rolling, the rolling of the rolled piece does not contact the side wall of the pass. It is not only used in roughing and intermediate rolling mills for high-end wires and bars, but also in finishing mills for bar rolling, pre-finishing mills for high-end wires, and billet mills. Holeless rolling technology has considerable effects in reducing rolling costs, improving rolling mill efficiency and reducing energy consumption. [0003] A few years ago, the bar production line of the iron and steel plant adopted a maximum spacing of 10m for non-perforated rolling stand...

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Problems solved by technology

[0003] A few years ago, the bar production line of the iron and steel plant adopted a maximum spacing of 10m for non-perforated rolling stands, and 2.8m between the stands. The spacing cannot be rolled, and the production can only be realized within the rough rolling unit, which limits the development of new technology and high technology for non-slotted rolling. At the same time, the output of the bar production line is not high and cannot reach a satisfactory level; resulting in production costs Remaining high, the company obviously lacks market competitiveness

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