A method for automatic control of cooling water flow rate in copper rod up-drawing continuous casting

Abstract

The invention discloses an automatic control method for the flow rate of cooling water in copper rod upward leading continuous casting. One end of the guide post, the other end of the extruding guide post is provided with an extruding spring, and the axis of one end of the extruding spring facing away from the extruding guide post is colinearly provided with an adjusting stud, and the adjusting stud is set In the adjusting screw hole fixedly arranged in the position; and include the following steps: adjust the flow rate of cooling water to the maximum value allowed, and then gradually reduce the flow rate of cooling water until the copper rod is deformed or has an irregular appearance, maintaining the flow rate of cooling water The flow rate is constant; screw the adjusting stud until the copper rod is squeezed and deformed by the movable extrusion wheel; slowly increase the flow rate of the cooling water until the appearance of the prepared copper rod is regular without deformation, and keep the adjusting stud position remains unchanged. The invention can automatically control the lower limit of the cooling water flow rate.

Description

technical field [0001] The invention relates to the technical field of copper rod upward continuous casting production technology, in particular to an automatic control method for cooling water flow rate of copper rod upward continuous casting. Background technique [0002] Upward continuous casting is currently the main process for producing large-length bright oxygen-free copper rods, which has the advantages of high production capacity, less waste discharge, and high degree of automation. When the upward continuous casting method is used to produce copper rods, the flow rate of the cooling water is a key control parameter: if the flow rate of the cooling water is too fast, the crystallization rate of the molten copper liquid will be too fast, which will make the internal metallographic phase of the copper rod produced The organization is difficult to meet the subsequent processing and use requirements; and if the flow rate of cooling water is too slow, the cooling perform...

AI Technical Summary

Problems solved by technology

The flow rate of the cooling water is a key control parameter when the upward continuous casting method is used to produce copper rods: if the flow rate of the cooling water is too fast, the crystallization rate of the molten copper liquid will be too fast, and the metallographic phase inside the copper rod produced will be too fast. The organization is difficult to meet the requirements of subsequent processing and use; and if the flow rate of cooling water is too slow, the cooling performance cannot meet the needs of copper rod crystallization, and the copper rods produced by the crystallizer are more likely to be deformed, which affects the regularity of the appearance of the product. It is not conducive to the subsequent processing of copper rods

[0003] Therefore, in the up-drawing continuous casting production of the prior art, the cooling water mostly adopts the flow rate of supersaturated cooling efficiency, that is, the flow rate of the cooling water is set to the maximum value allowed, that is, to ensure that the internal metallographic structure of the copper rod can meet the Subsequent processing and use requirements are sufficient; but in fact such a cooling water flow rate is not necessary, there is still room for a certain decrease in the cooling water flow rate, and an excessively fast cooling water flow rate also means a larger amount of cooling water, a higher Water supply energy consumption and circulating cooling energy consumption

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