. In the continuous production process, the sizing area of the drawing die will increase due to normal wear.
2. During the production process, the annealing current is not constant, and the current is suddenly high, causing the monofilament to be pulled or blown off by a sudden strong current.
3. Due to the quality problems of various rods. In the production process, there are irregular star shaped defects in the bar, which makes the monofilament break under various unpredictable tensions in the process of tensile deformation. This rarely happens when the bar is good
resolvent:
For different bars, different mold matching schemes are constantly selected and explored in production. Before production, the copper rod produced shall be fully self inspected to find the quality defects of the copper rod in time, and the corresponding countermeasures shall be found in time according to different conditions, or reduce the drawing speed, or eliminate the defective section.
During the production process, we constantly observe whether the annealing current of wire drawing is normal, especially at the beginning. Pay special attention to the change of annealing current, adjust the annealing current according to the change of wire speed, so that the annealing current gradually increases with the increase of wire speed, so as to ensure the normal operation of the equipment
