Corrugated board production technology Q & A

In the process of crushing, how often does the fault occur and how can it be eliminated?
1. The height of the corrugated is not enough. The reason may be that the pressure or temperature is too low, or the moisture content of the paper is too high. The solution is to adjust the pressure or roller temperature, or reduce the speed so that the paper is dry.
2. The corrugated height is not uniform, and the length of both sides of the corrugated paper is fan-shaped. This is due to the poor parallelism of the corrugating roller or the uneven pressure at both ends. If the corrugated paper on the left side is shorter than the right side, the upper corrugating roll should be properly raised to the left, otherwise it is reversed.
3, corrugated paper curled into a tube, the main reason is that the upper and lower roller temperature difference is too large. The working conditions of the heating sources in the upper and lower rollers should be checked. Perhaps one of them is faulty and can be repaired or replaced.
4, corrugated paper stuck to the corrugated roller surface. Excessively high roller surface temperature or moisture in the base paper can cause this phenomenon. At this time, the temperature of the roll surface should be adjusted so that the paper can be dried and then pressed. If the scraper does not conform to the roll groove, it should be adjusted or replaced.
How to maintain and maintain the corrugating roller?
1. Before use, check the parallelism and fastening of the corrugating roller and adjust the pressure between the rollers.
2. Pay attention to the full lubrication of the corrugating roller when using it. Spraying a small amount of oil mist or friction reducer on the corrugating roller surface during production will reduce the wear between the corrugating rollers and also prevent the corrugated paper from breaking and foaming.
3, after use to remove the pressure, clean the roller surface. Do not flush high-temperature roller surfaces with water. This will deform the rollers and accelerate wear.
4, regular maintenance. Corrugated rollers can normally produce about 20 million meters of corrugated board. If 50,000 meters of corrugated board is produced every day, grinding and repairing will be carried out in about one year. The diameter of corrugated roller after grinding is reduced by about 1.0MM. The coefficient increases, and the amount of base paper and adhesive also increases.