The reasons why the wire drawing machine interrupts the wire during the drawing process may include the following aspects:
1. Unstable annealing current:
In the annealing process of wire drawing, if the voltage and current are unstable, the wire may be pulled due to a long period of unstable current, or it may be blown due to excessive instantaneous current. A sudden high current may also cause the wire to break during annealing or be blown by a sudden strong current.
2. Metal wire material problem:
The high carbon content of the wire or wire rod material or other reasons may cause its tension to be insufficient, resulting in the breaking of the wire during the drawing process. Irregular quality defects of the rod may also cause the metal wire to be broken by a variety of unpredictable tension during wire drawing deformation.
3. Drawing die wear:
During the long-term operation of the drawing die of the wire drawing machine, the sizing area of the drawing die will be enlarged due to normal wear, which may lead to uneven force on the metal wire during the drawing process, resulting in wire breakage.
In order to reduce the phenomenon of wire breaking in the drawing process of the wire drawing machine, the following measures can be taken:
1. Do a good job of wire detection:
Before using the wire drawing machine, it is necessary to do a good job of testing the wire or rod, and replace the wire in time if there is a quality problem, or reduce the pulling speed according to the actual situation.
2. Observe the change of annealing current:
In the production process, it is necessary to constantly observe whether the annealing current of the wire drawing is normal, especially when it is just started, pay special attention to the change of the annealing current, and adjust the size of the annealing current according to the change of the wire speed.
3. Check the wear of the drawing die:
Before using the wire drawing machine, check the machine, including whether the wire drawing die is loose or worn, if necessary, replace the worn wire drawing die in time.
In summary, by doing a good job of metal wire detection, observing the change of annealing current and checking the wear of the wire drawing die, it can effectively reduce the wire breaking phenomenon of the wire drawing machine in the process of wire drawing, improve production efficiency and product quality.