How to get rid of pits on the honing tube

- Apr 29, 2020-

1. When changing rolls, first check the rolls, do not use severely corroded rolls, and replace worn rolls or holes in time;

2. Improve the material of the rolls to keep the cooling of the grooves good, and use process lubricants (see plastic processing technology lubrication) to enhance the wear resistance of the grooves;

3. Control the billet heating operation to maintain positive pressure in the furnace and reduce oxidizing gas. For some alloy steels that are easily oxidized and the scale is not easy to fall off, the surface of the billet should be covered with iron to protect the heating;

4. Use high pressure water, compressed air or iron brush to remove the scale on the surface before the roughing mill