A method for reducing metal dust in wire drawing process of electric wire and cable

Abstract

The invention relates to a method and device for reducing metal dust in the wire drawing process of wires and cables. A heating tube is installed before the wire inlet of the wire drawing equipment, and the two ends of the heating tube are sealed with high-temperature-resistant material gaskets, and the two ends are sealed. There is an inlet and outlet corresponding to the diameter of the metal rod to be drawn on the pad, and the metal rod to be drawn is first heated by the heating tube and then directly enters the first mold of the wire drawing equipment; the temperature in the heating tube is set as: For copper For metal rod materials, the temperature in the heating tube is set to 300-350°C; for aluminum and aluminum alloy metal rods, the temperature in the heating tube is set to 300-320°C. The invention essentially solves the generation of metal powder chips, improves safety performance, avoids the physical injury of metal powder chips to workers, avoids the occurrence of major accidents, improves work efficiency, saves production costs, and ensures product quality Has a very high use 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 in the wire drawing process of wires and cables. Background technique [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 dissolve and be absorbed on the bronchial wall, and be carried to various parts of the body by the blood, causing systemic poisoning. The generation of metal dust will also have a certain impact ...

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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