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Improved press rolls of paper machine

A press roll and paper machine technology, applied in the direction of paper machine, paper making, press parts, etc., can solve the problems of broken or loose roll body 4, not too high line pressure, uneven internal materials, etc., to improve product quality, withstand The effect of high line pressure and long service life

Inactive Publication Date: 2007-12-19
冯亚强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this kind of stone roller has the following disadvantages: the stone is natural, the internal material is uneven, and it is easy to break; Prestressed clamping after cooling, this method is easy to break or loosen the roller body 4, so the service life is short and the line pressure cannot be too high, which has certain limitations

Method used

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  • Improved press rolls of paper machine

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Embodiment Construction

[0011] As shown in Figure 1, the improved paper machine press roll includes a metal roll body 1, the outer peripheral surface of the metal roll body 1 is coated with a stainless steel material layer 2, and the outer layer of the stainless steel material layer 2 is coated with Ceramic layer 3.

[0012] The metal roll body 1 is a cast iron roll body or a steel roll body.

[0013] The ceramic layer 3 is an alumina ceramic powder ceramic layer or a zirconia ceramic powder ceramic layer.

[0014] When making paper, the paper web is in contact with the ceramic layer of the roll body and is separated from the ceramic layer. The 2%-7% fine pores on the surface of the ceramic layer can store some air. The web on the roll surface provides the conditions. The cast iron or steel roller body has high strength, withstands high linear pressure, and is not easy to deform. The bottom layer 2 sprayed on the center roller body 1 adopts a stainless steel layer, which can not only enhance the ad...

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Abstract

The present invention relates to an improved pressing roller for paper-making machine. It is characterized by that it includes a metal roller self-body, the external peripheral surface of said metal roller self-body is covered with a layer of stainless steel material, and the external surface of said stainless steel material layer is covered with a layer of ceramic material. Said improved pressing roller not only can obtain good pressing effect, but also can raise the product quality of paper-making machine.

Description

technical field [0001] This invention relates to press rolls for paper machines. Background technique [0002] As shown in Figure 2, in the press section of a traditional paper machine, natural granite stone rolls are used as press rolls to dehydrate the paper sheets. The wet paper web on the surface of the stone roll is easier to peel off from the surface. But this kind of stone roller has the following disadvantages: the stone is natural, the internal material is uneven, and it is easy to break; Prestressed clamping after cooling, this method is easy to cause the roll body 4 to break or loosen, so the service life is short and the line pressure cannot be too high, which has certain limitations. [0003] And the granite resource that can be used to manufacture above-mentioned press roll is less and less, inventing a kind of substitute product becomes the major technical problem in reality. Contents of the invention [0004] The technical problem to be solved by the pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21F3/08
Inventor 冯亚强
Owner 冯亚强
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