In the process of using the drawing die, it is an important way to prolong the service life of the die by reasonably using it to maintain the drawing die and improve the repair level of the die.

1. Cleaning of molds

The mold needs to be cleaned before use, because the debris in the mold hole will not only scratch the surface of the wire during the stretching process, but also cause the mold to produce grooves, and even lead to the scrapping of the mold, so the mold can be cleaned by ultrasonic and dried with compressed air before use.

2. Cleaning of filament solution

The potassium nitrate or potassium fume nitrate liquid used in the filament head before stretching the wire has a strong corrosive effect on the mold and will destroy the surface finish of the mold. Therefore, it is necessary to clean the filament solution on the filament head before threading.

3. Reasonable installation and equipment maintenance of molds

When installing the drawing die, it is necessary to ensure that the center line of the die hole coincides with the tensile axis of the wire. Otherwise, the wire will have additional side pressure on the die wall, and the wear of the die will become asymmetrical and uneven wear. In addition, improper installation and maintenance of the drawing equipment means that the drawing die is in the working conditions of impact, vibration or frequent starting, which will make the drawing die uneven or fluctuating, resulting in premature wear of the drawing die.

4. Surface polishing and repair of molds

In order to ensure the quality of the wire, the drawing die needs to be inspected and polished before use. With the use of the mold, the mold hole size is defended, and the action area and sizing area need to be repaired. The level of mold repair affects the reuse rate and life of the mold.

A good maintenance and maintenance system for wire drawing dies is conducive to improving the quality, yield and production efficiency of wires, prolonging the service life of wire drawing dies and reducing the cost of molds.