1. The annealing machine of Copper Wire Drawing Machine with Annealing is divided into three parts: preheating section, annealing section and cooling section.Since the length of the preheating section is relatively long and the distance of the preheating section can be adjusted, the temperature will not exceed 250 degrees and the copper wire will not change color.
2. The current in the annealing section is large and the temperature of the copper wire is high (about 550 degrees). If there is air in the annealing section, copper and oxygen will produce copper oxide under heating conditions. This section is most susceptible to oxidation and redness. The annealing section is generally protected by copper antioxidants. If the water level of copper antioxidants is too low, redness will occur in this section.
The solution
2.1 Raise the cooling water level or increase the water flow rate.
2.2 Increase the copper antioxidant water level in the lower annealed copper wheel to ensure that there is no air in the annealing section.
3. When steam protection is used, the copper antioxidant cooling water level cannot be higher than the steam outlet, otherwise the steam will become a direct heating cycle copper antioxidant cooling water, which will absorb a large amount of steam and cause the steam pressure to be zero.
(The heating light of the steam generator shows that it is always heating, but the pressure of the steam is zero. Many times it will give people the illusion that the heating tube of the steam generator is burned out or the power of the steam generator is insufficient. Pay attention to this phenomenon during the production process. So as not to be misled.)
If there is no steam protection in the working section, the copper wire will change color when it comes out.
The solution
3.1 Properly adjust the copper antioxidant cooling water inlet pressure. Not too big. At the same time, it is necessary to ensure that the water outlet at the return water outlet has a certain pressure and cannot allow air to enter from the return water outlet.
The above are the points to note on how to avoid oxidation of copper wires when operating the Copper Wire Drawing Machine with Annealing. If you have better ideas, you can contact us.
