Analysis of the causes of blackening of copper wire

1. The advanced production technology of oxygen-free copper rods and the production technology of oxygen-free copper rods developed by the country have been introduced in China, so that the entire wire and cable industry has used oxygen-free copper rods, but due to the processing of copper rods, especially The mastery of the toughening process and the poor storage conditions of the processed copper cores have caused the copper core itself to be slightly oxidized, which is one of the reasons for the blackening of the copper wire.

2. The addition of rubber formula (sulfur vulcanizing agent, accelerator TMTD, vulcanizing agent VA-7, light calcium carbonate and talc, active ultra-fine calcium carbonate, accelerator ZDC, accelerator DM) is also added after the production process. The copper wire will be black;

3. The chemical composition change of the formula added in the processing of rubber in the production process leaves hidden dangers in the production process, which is also one of the causes of blackening of the copper wire;

Solving the problem of blackening of copper wire is still difficult, and every process from copper wire to rubber should be taken seriously to achieve better results. The choice of glue and the use of the vulcanization system are still the key to the problem. The solution to this problem needs to go through the test of time.