Method and device for reducing metal dust in electric wire and cable drawing process

Abstract

The invention relates to a method and a device for reducing metal dust in the electric wire and cable drawing process. A heating tube is mounted in front of a wire inlet of drawing equipment, two ends of the heating tube are sealed with sealing pads made of high-temperature-resistant materials, in-out ports matched with the diameter of a metal pole required to be drawn in size are reserved in the sealing pads at two ends, and the metal pole required to be drawn directly enters a first die of the drawing equipment after heated in the heating tube. The temperature in the heating tube is set to range from 300 DEG C to 350 DEG C if the metal pole is made of copper and set to range from 300 DEG C to 320 DEG C if the metal pole is made of an aluminum and aluminum alloy. With the adoption of the method and device, production of the metal dust is avoided essentially, the safety performance is improved, harm of the metal dust to the body health of a worker and serious accidents are avoided, the work efficiency is improved, the production cost is saved, the product quality is guaranteed, and the method and the device have great usage value.

Description

Technical field [0001] The invention belongs to the technical field of wire and cable processing technology and equipment, and relates to a method and device for reducing metal dust during the drawing process of wires and cables. Background technique [0002] Wire stretching refers to a pressure processing method in which the wire blank undergoes plastic deformation through the die hole under a certain tensile force, reducing the cross-section and increasing the length. However, during the stretching process, due to the insufficient details, a large number of Metal dust, and the production of metal dust will seriously affect people's health. Long-term inhalation of higher concentrations of dust can cause systemic diseases (pneumoconiosis) mainly involving diffuse and progressive fibrosis of the lungs; such as inhalation of lead, Toxic dusts such as copper, zinc and manganese can dissolve on the bronchial wall and be absorbed, and can be carried to various parts of the body b...

AI Technical Summary

Problems solved by technology

[0002] The stretching of the wire refers to a pressure processing method in which the wire blank undergoes plastic deformation through the die hole under a certain tension, so that the cross section is reduced and the length is increased. Metal dust, and the production of metal dust will seriously affect people's health. Long-term inhalation of high concentration dust can cause diffuse lung and progressive fibrosis-based systemic diseases (pneumoconiosis); such as inhalation of lead, Toxic dust such as copper, zinc and manganese can be dissolved and absorbed on the bronchial wall, and carried to various parts of the body by the blood, causing systemic poisoning

The generation of metal dust will also have a certain impact on production, reducing product quality and equipment working accuracy, etc. The die hole is blocked by the dust, and the uneven force of the mold hole in the mold due to the uneven force during the high-speed drawing process has been caused for a long time. Smooth and deformed, the final wire has bad phenomena such as flash, inclusion, shrinkage cavity, etc., and the cost is wasted and the efficiency is low due to the frequent damage of the mold; and because a large amount of powder deposits in the lubricating liquid, the cooling cycle is not smooth , drum wear, pipe blockage, drawing liquid is seriously precipitated from the drawing tank, resulting in energy waste, severe damage to the site environment, forming dangerous factors such as dirty, messy, slippery ground, and even serious fire accidents due to excessive temperature of the drawing liquid

The generation of metal powder will also cause pollution and harm to the environment, because the dust also reduces the illuminance and visibility, affecting the vision of indoor operations; and the dust will explode under certain conditions, causing economic losses and casualties

[0003] It can be seen that in the existing wire drawing process of wires and cables, a large amount of metal powder is produced in the process of drawing copper, aluminum, aluminum alloy and other metals, which leads to environmental hazards, increased cost consumption, energy waste, equipment pipeline blockage, low efficiency, and various molds. Problems such as drum damage and poor product quality are technical problems to be solved by those skilled in the art

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