High-speed wire production method capable of controlling same-circle mechanical property fluctuation of high-carbon steel wire rods

Abstract

The invention discloses a high-speed wire production method capable of controlling the same-circle mechanical property fluctuation of high-carbon steel wire rods, belonging to the technical field of roll steel. The high-speed wire production method capable of controlling the same-circle mechanical property fluctuation of the high-carbon steel wire rods comprises the following steps: controlling vibration value fluctuation of a wire discharging machine to be 2-3mm per second, controlling the wire discharging circle diameter to be in a range of 9.5-1.1m and ensuring the specific distribution of coils on a Stelmor air-cooling roller channel; controlling the initial rate of the roller channel to be 0.6-0.7m per second and controlling wire rod density of overlapping nodes and non-overlapping points; adjusting angles of Jialing baffles of a fan under the Stelmor air-cooling roller channel according to the specifications of the wire rods; controlling the angles of Jialing baffles of wire rods which are 5.5-8mm long to be 10 degrees, controlling the angles of Jialing baffles of wire rods which are 8-12mm long to be 8 degrees, and controlling the angles of Jialing baffles of wire rods which are 12-16mm to be 5 degrees; controlling phase transformation start temperature to be within 20-30 DEG C. The high-speed wire production method capable of controlling the same-circle mechanical property fluctuation of the high-carbon steel wire rods has the advantages that the same-circle property fluctuation of the wire rods is effectively alleviated, the drawing capability of the wire rods and the stability of the steel wire property are improved, the method is high in practicability and suitable for improving the quality of high-carbon steel wire rods of a high-speed wire factory; the same-circle mechanical property fluctuation of the 82B wire rods of the high-speed wire production factory is controlled to be within 40Mpa.

Description

technical field [0001] The invention belongs to the technical field of steel rolling, and in particular provides a high-wire production method for controlling fluctuations in the same-turn mechanical properties of high-carbon steel wire rods, which effectively reduces the same-turn performance fluctuations of wire rods and improves the drawing ability of wire rods And the stability of steel wire performance, strong process practicability, suitable for high-speed wire factory to improve the quality of high-carbon steel wire rod. Background technique [0002] The uniformity of the mechanical properties of the wire rod refers to the fluctuation of the wire rod performance due to the stability of the rolling process and the characteristics of the wire rod itself. The fluctuation of the same coil performance of the wire rod is proposed for the forming characteristics of the wire rod. Due to the different density of the wire rod stacked on the air-cooled roller table, the cooling ...

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Problems solved by technology

Researchers in other steel mills have also innovated in cooling methods. The fan carries water vapor to speed up the cooling rate, but the window for controlling the process is very narrow, and a slight fluctuation in the process will aggravate the performance fluctuation of the same cycle.

SMS group proposed a control concept of three fans through equipment improvement, which changed the traditional one fan. Through the technical idea of ​​Jialing parameter wind distribution, some effects have been achieved in controlling the fluctuation of mechanical properties in the same circle, but the investment in equipment and The transformation cost is relatively high, and the promotion in the market needs the acceptance of many domestic enterprises

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