Why is the wire cut open? There's a lot of ash in it, and the copper wire breaks very easily
Copper is very brittle, first in the production of copper rod into copper is very brittle but high strength, poor toughness, the need for annealing copper wire has become ductile strength low, easy drawing and production, if you think that you may very easily broken wire, the wire is not in conformity with the national standards or in the production process of annealing is not in place, for reference only
This question two question 1, is that aging in the use process, if you think this is very easy to break the wire, inside out, first explain the decomposition of auxiliary wire cut inside why there are many similar gray things, but poor toughness, easy to draw and batch production, copper is very brittle, fill or inside after use for a long time will become brittle aging into dust, first in the production of copper rod into copper is very brittle strength preserved the need for annealing treatment so that copper wire become ductile strength becomes low, you may this wire is not in conformity with the national standards or the production process of annealing is not in place
First explain the wire cut inside why there are many similar gray things, because insulation wire is PVC insulation, aging in the use process, decomposition of inside filling additives, or inside after use for a long time will become brittle aging into dust, it is shows that the wire inside the ash it is caused by aging of interior materials
