Device and method for testing annealing capability of electrotechnical copper pole

Abstract

The invention provides a device for testing the annealing capability of an electrotechnical copper pole. The device comprises a mounting base; a rotary core rod, a tray capable of moving up and down, and a fixture are arranged on the mounting base; a first balancing weight is placed on the tray; the fixture is arranged right above the first balancing weight; the core rod is used for reeling a copper wire sample to ensure that the copper wire sample is reeled into a coil-shaped test sample; the fixture is used for clamping the upper end of the test sample; the first balancing weight is used for being suspended at the lower end of the test sample. The device can be used for highly accurately measuring the extension quantity of the test sample after being stretched, so as to judge the annealing performance of the electrotechnical copper pole (to which the test sample belongs) according to the extension quantity. Moreover, the device is simple in integral structure, low in manufacturing cost, and excellent in popularization meaning.

Description

technical field [0001] The invention relates to the field of testing the annealability of copper rods, in particular to a device and method for testing the annealability of copper rods used by electricians. Background technique [0002] Copper wire (also known as copper wire) is made of copper rods through the wire drawing process. Copper wire has very good electrical conductivity, so it is widely used in the manufacture of wires, cables, brushes, etc. When producing copper wire, the copper rod for electrical purposes will produce work hardening during the wire drawing process, so it needs to be annealed according to the process and performance requirements. However, since the annealability of electrical copper rods of different manufacturers and grades is not the same, the corresponding wire drawing annealing process should be formulated or adjusted according to the annealability of specific copper rods, otherwise it will affect the processing performance of copper wires an...

AI Technical Summary

Problems solved by technology

However, the sensitivity of the Rockwell hardness test method is low, especially for those electrical copper rods with low copper content, poor annealability, or relatively close annealability.

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