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How to choose copper rod drawing machine and drawing process?
- Jan 14, 2018 -

How to choose copper rod drawing machine and drawing process?

How to choose the material of copper rod:

1. The defects of the copper rod usually come from the continuous casting process and rolling process, which includes: residue, copper oxide inclusion, thermal cracking, crack, and the formation of oxide particles on the surface of the copper rod. Most intermetallic inclusions are brittle, resulting in cracks in the process of drawing.

2. The elements that are soluble in copper matrix are mainly Al, Fe, Ni, Sn, Zn, Ag, Cd, P and so on. When the content of these elements is very small, it forms a solid solution with copper, which has little effect on the processing properties and plasticity of copper, but reduces the conductivity of copper. It is important to note that these elements are solid with copper and are relatively rigid with the copper matrix. When the casting condition is not good, it is possible to form impurity aggregates, which affect the cold processing property of copper.