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Calender roll


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Calender roll


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The calender roll of ordinary paper machine is a hard cold cast iron roll. For the surface of the paper is not smooth, the roller surface will only contact the raised part of the surface, and the lower part of the contact. The tightness of the contact part increases, and the strengthening pressure forms a light spot, so that the surface characteristics are not uniform.


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Detailed introduction

1.The calender roll of an ordinary paper machine is a hard cold cast iron roll. For paper with an uneven surface, the roll surface will only contact the raised portion of the surface, while the lower portion will not. The tightness of the contact part increases, intensifying the pressure to form light spots and making the surface characteristics uneven.
2.Soft calendering technology, the use of elastic roll denaturation to absorb the unevenness of the paper surface, so that the paper surface is completely in contact with the surface of the iron roll, calendering after the paper compactness flat and continuous changes in the paper surface characteristics of the invalid.
3.Wide pressure area, long calendering time, relatively low specific pressure, can reduce the thickness of less (small loss of strength), improve smoothness.
4.The soft stick is a floating roller, in the soft roller strip seal is one of the key components, but also wear parts, it plays a role in isolating the pressure oil chamber and oil discharge chamber, if the strip seal lip has been worn out must be replaced, and check the compression of the strip seal of the reed.

Technical parameters:

Working face 1500mm-6500mm
Diameter 300mm-1000mm
Center distance 1800mm-7000mm
Rubber thickness 20mm-30mm
Working speed 300m/min-500m/min
Material HT300Chilled cast iron surface
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