The combi press felt plays an important role in removing the water from the paper web after the forming section, and at the same time imparting smoothness and conveying it to the dryer section. For this reason, the press felt needs to provide the following functions: water removal, smoothness and runnability. In recent years, larger and faster papermachines require press felts of even higher consistency and quality. At Hengta, we seek uniformity on every aspect of the production process. Using digital controls, we are able to manage the entire process with great precision, and to implement a high level of quality control on all aspects.
Combi Press Felt has a certain strength. The periodic stress and fatigue in the process of pressing can cause the felt elongation, compression and horizontal direction strain. When felt is used too long, the deformation will reduce the felt quality and reduce felt service life.
The void volume refers to the measured value of water capacity of BOM Combi Press Felt, especially the maximum water capacity of the press felt under the load effect. Felt shall have a certain volume of voids to absorb the water pressed out of the wet paper sheet.
Permeability refers the performance of water or air through felt under certain pressure or vacuum conditions. BOM Combi Press Felt must have good permeability. The fluid pressure in pressure zone is too high to cause wet paper embossing. Fillers, binders, fine fibres and other impurities can clog felt pores and reduce felt permeability. So the felt must be cleaned regularly to keep felt clean. And as far as possible to avoid impurities to block felt pores, maintain its smooth, water permeable and large enough void volume to play the auxiliary dehydration of felt.
BOM Combi Press Felt must be kept in a certain degree of compressibility. After the felt is used, the pore volume decreases gradually, and the diameter of the capillary pipe becomes smaller. The result is that the channel of fluid flow and the penetration of the felt are reduced, and the pressure of pressed zone increases.
The felt play the role of transporting power, driving the action roller in press section. Because the felt will produce friction with some fixed element surface, such as felt suction tank or suction pipe, so the felt must have good wear resistance.
According to paper machine and paper, we can change the structure of base mesh.
The felt we provided has the characters of anti-high pressure, good elasticity and filterability, stable size, small elongation, great strength, affective to eliminate grooving, vacuum mark, blind-hole mark and other marks.
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HENGTA GROUP
Mobile: +86 18033763037 (
WhatsApp)
Email: marketing@hengtagroup.com
Address: No.345 Zhonghua North Street, Xinhua District, Shijiazhuang, China.
Website: www.hengtagroup.com
