[Introduction] The quality of corrugated rolls has a direct impact on the quality of corrugated cardboard, and now the market is basically tungsten carbide corrugated rolls, but the use of long rice production is different. Some can be tens of millions of meters, the same material manufacturers are the same, why there is such a big gap? The rolls wear out. How to reduce the wear of corrugating rollers?
Reasons for wear of corrugated rods
1. The main reason of corrugated roll wear is paper quality. Some paper contains sand or hard impurities in the paper, resulting in the production of these Sandstone on the corrugated roll friction, resulting in rapid wear of corrugated rolls, affecting the direct life of corrugated rods.
2. The tension of the corrugated core paper also affects the life of the corrugated roller. The greater the core paper force, the greater the friction force, and the smaller the core paper force, the opposite.
3, corrugated roller production is to reduce the R angle, that is, to reduce the friction coefficient.
Improve
In order to prolong the service life of corrugated rolls, the paper quality problems are mainly solved, the paper sandy inspection, found before the machine, more sand content in paper, the original paper manufacturers are required to improve. Corrugated core paper force should be as light as possible to reduce the friction between paper and corrugated rolls.
The surface hardness of tungsten carbide is HV1300, the surface roughness is about 1.6 micron, the coating of tungsten carbide is about 0.1 millimeter, but the wear resistance is better. Another improvement is that the use of branded corrugated rollers can be considered to replace tungsten carbide, which can also extend the service life of corrugated rollers.
