Polishing of nozzle inner wall

For microporous polishing such as nozzle, diamond abrasive with the smallest particle size needs to be selected. The reason is that the smaller the particle size is, the higher the polishing accuracy is. Diamond abrasives have high hardness. When polishing micro holes, because the aperture is too small, the flow rate and pressure are relatively small, and the holes cannot be polished for too long, otherwise the holes will become larger. Therefore, using diamond abrasives with high hardness can achieve excellent polishing effect under low pressure and in a short time.

If only deburring the inner hole of the needle, smank abrasive flow has more solutions. Because this kind of microporous burr is usually very small and brittle, we can use liquid abrasive for extrusion grinding, which is more thorough. Ultrasonic deburring can also be used, which requires strict control of burr in advance