Rubber-sheathed cables usually use Category 5 copper conductors as
conductive cores. During their production and transportation, the copper
conductors are often oxidized and discolored, which seriously affects
the quality of the products. So how to effectively prevent the oxidation
of rubber sheathed cable conductors?
Guangdong Rifeng Cable Co. Ltd
1. Choose high-quality copper rods
In cable production, copper conductors are often purchased from outside.
At this time, high-quality raw materials should be selected and the
supplier's transportation, delivery, storage and other links should be
standardized. For transportation and storage of copper rods, plastic
cloth or plastic film can be used to cover the copper rods, and the
simplest physical barrier method is used to prevent the copper rods from
contacting moist air. At the time of delivery, check the copper rod
with naked eyes for signs of blackening, and control the oxidation of
the copper conductor from the source.
2. Control of copper rod drawing process
1>. Choose a suitable mold to avoid the variation of the copper rod
crystal lattice and accelerate the temperature rise and oxidation of the
metal copper.
2>. Check the temperature and humidity of the emulsion before
starting the machine to ensure that the emulsion is an alkaline
solution.
3>. The take-up and take-up line should keep the copper rod tension
uniform and stable, and the surface of the metal copper itself should be
dried.
4>. After drawing the bottom plate, seal it with a transparent plastic film and store it in a dry environment.
3.Copper wire stranding and insulation, sheath rubber extrusion process
1>. In the process of twisting, the infusion hose can be used to drip
the antioxidant into the copper wire. The dripping standard is based on
the surface of the copper wire just soaking, so that a passivation film
can be formed on the surface of the copper conductor to avoid
oxidation.
2> During the extrusion process, water should be avoided in the end
of the thread to prevent the end of the thread from oxidation and
blackening.
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