The calender is an important part of the paper machine and its role

The calender is an important part of the paper machine and its role

The calender is an important part of the paper machine. The role of the calender in production determines the importance of the calender. In the production of paper machine, the calender is mainly the paper sheet from the drying section. After calendering by the calender, the smoothness, gloss and tension of the paper sheet can be improved, so that the paper can be made well. The thickness of the whole page is the same, and the light transmission is reduced, and the production quality of the paper machine production line is improved.

The calender in the Kefa paper machine is mainly composed of 3-10 metal rollers made of nickel-chromium steel or cold cast iron. In production, the active roller is driven by the motor below, and the other rollers are driven by friction. A ventilation device is required on each intermediate roller, which can prevent the roller from winding when steam is introduced, and improve the smoothness of the paper.

The production pressure of the calender in the paper machine usually depends on its own weight, and the pressure can also be obtained by the pressing device. In order to compensate for the deflection of the roller after pressurization, the bottom roller and the top roller of the calender are made into waist drum .