Production method and system for improving yield of high-speed wire rod production line

Abstract

The invention relates to a production system for improving the yield of a high-speed wire rod production line. The production system for improving the yield of the high-speed wire rod production line comprises a heating furnace, a rough rolling unit, an intermediate rolling unit, a pre-finishing rolling unit, a finishing rolling unit, a reducing unit and a high-speed flying shear, wherein a rough rolling flying shear is arranged between the rough rolling unit and the intermediate rolling unit, an intermediate rolling flying shear is arranged between the intermediate rolling unit and the pre-finishing rolling unit, a pre-finishing rolling cooling box and a pre-finishing rolling flying shear are arranged between the pre-finishing rolling unit and the finishing rolling unit, a finishing rolling cooling box is arranged behind the finishing rolling unit, a reducing cooling box is arranged behind the reducing unit, a pinch roll and a silking machine are arranged behind the high-speed flying shear, an air cooling mechanism is arranged behind the silking machine, a coil collecting station is arranged behind the air cooling mechanism, a PF line is arranged behind the coil collecting station, and a storehouse is arranged behind the PF line. According to the production system for improving the yield of the high-speed wire rod production line, the process from pre-finishing rolling to silking is improved, so that the yield of high-speed wire rods is improved, and the system stability during high-speed wire rod production is improved.

Description

technical field [0001] The invention relates to high-speed wire production, in particular to a production method and system for increasing the output of a high-speed wire production line. Background technique [0002] As one of the important products in the steel industry, high-speed wire rod has a wide variety of products, including bearing steel, spring steel, cord steel, cold heading steel, construction steel, etc., which are widely used in automobiles, machinery, metal products, construction and other industries. In recent years, output has continued to increase, reaching 156.82 million tons in 2019, an increase of 8.9% over 2018, accounting for 15.74% of my country's crude steel output. [0003] Typical high-speed wire rod rolling line rolling units mainly include: roughing rolling unit, intermediate rolling unit, pre-finishing rolling unit, and finishing rolling unit. At present, the maximum rolling speed of ordinary domestic high-speed wire rod production lines is abo...

AI Technical Summary

Problems solved by technology

[0008] The rolling of the reducing and sizing unit adopts low-temperature and high-pressure rolling, but the head of the rolled piece cannot be rolled at low temperature, and its performance is lower than that of the middle part. It needs to be manually cut in the subsequent process, which wastes a lot of manpower and labor. The environment is poor and the work intensity is high;

[0009] At the rolling head and tail of one steel, because the tension between the units is not established, the size of the head and tail of the rolled piece is out of tolerance, and the passability of the product is not good

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