Kaip naudoti naudoti žiedas pelėsis
Whether the pressure roller is used correctly or not is one of the most critical factors affecting the use of ring dies. We found in the long-term test and service, there are a lot of ring die in the use of the working surface is not flat, low rate of discharge holes, capacity reduction, the use of new ring die production, not discharge situation, most of which is due to the use of the pressure roller is not standardized.
The new ring die is characterized by: the working surface is flat, but the smoothness of the eyelet and guide mouth, are not up to the normal granulation requirements of the smoothness of the eyelet of the new ring die of the material resistance and friction are relatively large (especially small aperture ring die), and the old roller shell wear and tear on both sides are more serious, the material is easy to wear from the two ends of the roller shell slipped into the decompression groove, resulting in the new ring die on both sides of the eyelet of the discharge of material is not smooth or does not come out of the material. Therefore, the new ring mold must be used with new roller shell. Ensure that the matching use more than 100 hours, to ensure that the new ring die working surface pressure uniformity, eyelets out of the hole rate and polishing rate to meet the requirements. In order to give full play to the best use of the ring mold performance. In principle, each ring die must be equipped with a separate pressure roller when it is used at the beginning, and it can not be used in other ring dies in series with the same roller shell.
