An air duct for copper wire water treatment

Abstract

The invention discloses an air pipe for water-treated copper wires. The air pipe comprises an air pipe body and a plurality of air nozzles, wherein bulges are arranged on the inner wall of the air pipe body, and a plurality of wire penetrating holes are formed in on the air pipe at the same side with the bulges; cone-shaped air concentrating cavities with the inner diameters gradually decreasing along the air direction are formed in the air nozzle bodies; airflow in air inlets is directly projected to the inner walls of the upper parts of the air concentrating cavities; a regulating ring is rotatably arranged in the middles of the two air inlets, and spiral bulges are fixed on the inner walls of the air outlets. Airflow in the two air inlets does continuous acceleration, constant-speed and deceleration motions in the air inlets by virtue of the flow direction variation in an expansion section A, a flat section and an expansion section B, finally forms a jet of flow-speed-stabilized airflow by virtue of continuous reflection of oblique inner walls of the expansion section A and the expansion section B and is sprayed out from the tail end of the expansion section B, so that the probability that a small jet of rotational flow is formed by airflow because the inner walls of the air concentrating cavities are not locally and uniformly stressed is reduced.

Description

technical field [0001] The invention relates to the field of copper stranded wire processing, in particular to an air duct used for water treatment of copper wires. Background technique [0002] During the production and processing of copper wire, when the copper wire is pulled, stretched, twisted and wound, stress will be generated inside it, and it will become hard or even oxidized locally, so this kind of crude product cannot be further processed into copper soft stranded wire. Therefore, the copper stranded wire must be annealed. The general treatment method is to use nitrogen as a protective gas and anneal in the annealing furnace. First, the air is extracted from the annealing furnace to form a negative pressure to a certain extent and then filled with nitrogen. The pressure is formed inside, and when it is heated to about 300 degrees Celsius, it is kept for one end of time, and then the furnace is turned on to cool naturally. However, after this kind of annealing tre...

AI Technical Summary

Problems solved by technology

Traditional annealing cooling water uses tap water quality and natural cooling precipitation, but such methods have a great impact on the smoothness and shelf life of the copper wire surface

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