Production method for improving large dimension wire size precision and surface quality

Abstract

The invention discloses a production method for improving large dimension wire size precision and surface quality. The method is implemented by using the existing finishing mill set to modify the dummied frame in the finishing mill set used in producing large dimension wire into a regular round frame on the high speed wire production line for non-reducing sizing machine set, performing primary regular round rolling to the wires rolled by a finished product frame, thus improving large dimension wire size precision and surface quality, and simultaneously reducing head and tail cutting quantity of finished product wire and enhancing yield.

Description

technical field [0001] The invention belongs to the field of metallurgy, and relates to a production method of large-size wire rods, in particular to a production method for improving the dimensional accuracy and surface quality of large-size wire rods. Background technique [0002] When the high-speed wire rod production line without sizing unit produces large-scale wire rods, due to the rolling tension and the temperature difference between the head, middle and tail of the billet, there are deviations in the size of the head, middle and tail of the finished wire rod. To ensure that the size of the middle part of the finished wire rod meets the Higher dimensional accuracy requirements will inevitably increase the size of the head and tail of the wire rod, which will increase the shearing amount of the head and tail of the finished wire rod and affect the improvement of the yield. If the wire rod production line without reducing and sizing units wants to ensure a high yield,...

AI Technical Summary

Problems solved by technology

However, with this rolling method, the product quality is affected, and it cannot meet the increasingly higher dimensional accuracy requirements of downstream wire rod deep processing enterprises.