The surface sizing machine used for corrugated base paper production can be divided into “basin type sizing machine” and “membrane transfer type sizing machine” according to different gluing methods. These two sizing machines are also the most widely used in corrugated paper manufacturers. The difference between them lies in the production speed of the paper machine. Generally speaking, the pool type sizing machine is suitable for paper machines with a speed of less than 800m/min. , while the paper machines above 800m/min mostly use film transfer type sizing machines.
The oblique angle of the oblique structure is usually between 15° and 45°. The small angle is also conducive to the planning and installation of the glue hopper due to the large volume of the material pool. Film transfer sizing machine. Because the large angle is conducive to the placement of subsequent equipment such as arc rollers and steering gears, it is more convenient to operate and repair. Now, more and more corrugated paper machines with a speed of more than 800m/min are selected for film transfer type sizing machines in China, and its unique superior performance of sizing will be the future development direction.
The glue itself has a certain corrosive effect on the equipment, so the roller body, frame, and walking table of the sizing machine are usually made of stainless steel or covered with stainless steel. The upper and lower rolls for sizing are a hard roll and a soft roll. In the past, the hard rolls on cultural paper machines were often hard chrome-plated on the surface, but now the two rolls are covered with rubber. The hardness of the hard rolls is generally It is P&J 0, the rubber cover hardness of the soft roll is usually about P&J15, and the middle and high of the roll surface should be ground according to actual needs.
Post time: Dec-09-2022