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The manufacturer of Mica Paper slip plane takes you to understand the pressing process of mica paper

The manufacturer of Mica Paper slip plane takes you to understand the pressing process of mica paper

(Summary description)The manufacturer of Mica Paper slip plane tells you that the higher the linear pressure between the press rolls, the more beneficial the dewatering of the mica paper.

The manufacturer of Mica Paper slip plane takes you to understand the pressing process of mica paper

(Summary description)The manufacturer of Mica Paper slip plane tells you that the higher the linear pressure between the press rolls, the more beneficial the dewatering of the mica paper.

Information

The manufacturer of Mica Paper slip plane tells you that the higher the linear pressure between the press rolls, the more beneficial the dewatering of the mica paper. Therefore, in order to remove the expected moisture from the mica paper in the press section, the line pressure of the press should be increased without crushing the paper. It is generally believed that in the mica paper manufacturing process, it is appropriate to maintain the linear pressure of the pressing between 40-60 kg/cm. The manufacturer of Mica Paper slip plane tells you that in order to dehydrate the wet mica paper evenly along the entire width, there are special requirements for the press roll. The mica production equipment on the mica production line plays a very important role. We know that the shaft supported at both ends will be deflected under the action of external force, and the existence of deflection makes the contact between the upper and lower press rolls uneven, so that the linear pressure cannot be evenly distributed along the entire length of the roll. The pressure is high and the line pressure in the middle is small. Of course, the wet mica paper cannot be dehydrated evenly when it is pressed, and it affects the structure and tightness of the mica paper. The manufacturer of Mica Paper slip plane tells you that in order to compensate for the defects caused by the deflection, the press roll needs to be manufactured with a certain degree of medium height. In general, as long as the lower press roll has a medium height.

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The manufacturer of Mica Paper slip plane tells you that the mica paper is subjected to considerable linear pressure in the press section, which not only removes moisture, but also reduces the gaps between the mica flakes of the laminated paper sheet, so that the mica flakes forming the mica paper are closely overlapped. , Thereby improving the electrical properties and tensile strength of the paper.
The manufacturer of Mica Paper slip plane tells you that because mica paper pulp is fundamentally different from other fiber paper pulps, the strength of the paper is also different. It is believed that its strength is formed by the molecular bonding force between the mica scales or electrostatic attraction, so the strength is low, especially the wet strength is lower, and the small water flow can damage the paper. The manufacturer of Mica Paper slip plane tells you that moisture is squeezed out when wet paper and felt are pressed together. In order to prevent the squeezed out moisture from damaging the paper, the upper and lower press rolls should not be installed in the same vertical plane, and the upper press roll should Offset 50-80 mm to the direction the wet paper enters the press. This installation method of the press roll is called offset, and the offset distance is called sigh
The manufacturer of Mica Paper slip plane tells you that the wet paper and the upper and lower blankets enter the press section and the water that is squeezed out can be divided into two parts: one part is absorbed by the dagger blanket, and the other part is discharged through the lower blanket. The manufacturer of Mica Paper slip plane tells you that due to the press offset, before the wet mica paper enters the press, it first contacts the upper press roll. The press roll drives the extension tension of the blanket, so that the wet paper and the blanket are under certain pressure together. This pressure is called pre-pressure. The manufacturer of Mica Paper slip plane tells you that a part of the moisture in the wet paper is squeezed out by the pre-pressure, and this part of the moisture is absorbed by the upper blanket. Then, it enters between the squeezing rolls and is squeezed, and the water is discharged with the lower squeezing roll. In this way, the moisture will not re-wet the paper and damage the paper.

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