The reason why the surface of the wire drawn by the wire drawing machine is oxidized
1. The temperature of the cooling water in the sealing chamber is too high, exceeding 40 °C, so the sealing chamber cannot cool the metal wire as required, and the temperature of the formed single wire is still very high after annealing. oxidized by oxygen.
2. The saponified liquid content of the cooling liquid in the sealed chamber is not good, which will increase the friction between the wire and each guide wheel, and then the temperature of the wire will rise again, resulting in oxidation of the wire surface.
3. The water pressure and water volume of the cooling water in the sealed chamber are not good, so that the metal wire cannot achieve a satisfactory cooling effect.
The solutions to this oxidation phenomenon are: often check whether the equipment for cooling the circulating water is working properly and whether the cooling effect is normal; adding substances that can increase the concentration of the saponification liquid in the sealed chamber at certain intervals, so that the cooling water can be changed. The content of saponification liquid ensures that the metal wire can work normally on the guide wheel; regularly check whether the water pressure of the circulating water is normal, and constantly change the pressure and water volume of the cooling water entering the sealed chamber according to the change of the water pressure during production.
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