Ring die maintenance is a necessary measure to ensure the ring die can work normally and extend its service life. Therefore, you should pay attention to the following points in your work:
1. Whenever a ring die is replaced and not used for a period of time, the original feed should be extruded by non-corrosive oil, so that the material can be discharged smoothly and the die will not corrode. Otherwise, the heat from the ring die will remain inside the die hole, causing the feed to dry out and harden, resulting in the following:
● When it is used again, the die hole is blocked and the material cannot be extruded.
● When production begins, the ring die is subjected to high pressure that weakens its strength, which may cause the ring die to crack.
● Part of the die hole is blocked, which will reduce the output and the benefit.
2. Whenever the ring die is used for a period of time, it is necessary to regularly check whether there are local protrusions on the inner surface of the ring die, as well as whether the die hole guide port is ground, and sealed, or turned inward. If this happens, the ring die should be repaired in time to prolong the service life of the ring dies.
3. If most of the die holes are blocked, the material can be softened by soaking it in oil, and then granulated again.
4. The working surface of a ring die can not be beaten with hard steel tools when loading or unloading.
5. Make a record of the use of the ring die, so as to accurately count the actual service life of the ring dies.
6. The ring die must be stored in a dry and clean place, and the specifications must be marked. If it is stored in a humid place, the die hole will be corroded, which will reduce the service life of the ring die or affect the discharge effect.
