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How to effectively prevent the oxidation of rubber sheathed cable conductors? from freeamfva's blog

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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