Manufacturing method of 28 mm diameter specification of steel wire rods and through high-speed wire rod production line

Abstract

The invention discloses a manufacturing method of 28 mm diameter specification of steel wire rods and through a high-speed wire rod production line. The manufacturing method includes that a, rolled pieces enter into a reducing unit to be rolled after passing through a plurality of roughing rolling units and a plurality of front finishing rolling units; b, the rolled pieces overleap a sizing unit after rolling of the reducing unit in the step a; c, the rolled pieces are conveyed to a laying head to spin in circles though a pinch roll to form into products of the steel wire rods after the rolled pieces achieve the step b. In the process of spinning in circles, the raising speed rate of the reducing unit, the sizing unit, the pinch roll and the tail portion of the laying head is arranged to be 1.14 to 1.15 meters per square second, the advance coefficient of the laying head is arranged to be 0.990 to 1.005, and the rolling speed of the reducing unit is arranged to be at least 8.0 meters per second. The manufacturing method of the 28 mm diameter specification of steel wire rods and through the high-speed wire rod production line can achieve production of extra-large specification of steel wire rods.

Description

technical field [0001] The invention relates to a manufacturing process of steel wire rod products, which is a method for preparing wire rods with a diameter specification of 28 mm by using a high-speed wire rod production line. Background technique [0002] Currently, the 28 mm diameter specification The only way to prepare hot-rolled wire rod is to use the large coil process. The main equipment of the large coil process is a bar rolling mill and a large coil coiler. The technological process is that the finished product is first prepared by the intermediate rolling mill or the pre-static rolling unit or the large coil reducing and sizing unit (including the reducing unit and the sizing unit), and then coiled and formed by the coiler after proper temperature control. However, for the implementation of the large-coil process, it is necessary to update the existing equipment in the steel industry and re-purchase an expensive new production line consisting of a bar rolling ...

AI Technical Summary

Problems solved by technology

for As far as the roller ring is concerned, to achieve the successful configuration of the finished front hole, the axial ratio obviously cannot meet this requirement

[0006] (2) The ability of the spinning machine needs to be tested

[0007] Due to the above difficulties, the industry has not tried to use the existing high-speed wire rod production line for the preparation of 28mm diameter specification wire rod

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