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METHOD FOR PRODUCING FIBER WEBS AND PRODUCTION LINE FOR PRODUCING FIBER WEBS
METHOD FOR PRODUCING FIBER WEBS AND PRODUCTION LINE FOR PRODUCING FIBER WEBS
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机译:纤维网的制造方法及纤维网的生产线
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摘要
The invention relates to a method for producing a fiber web (W), in which method the fiber web (W) is calendered in at least one calendering nip (NA) of a calender (20A). The fiber web (W) is cooled at least partially by moisturizing evaporating cooling by a moisturizing evaporating cooling unit (10) before the fiber web is calendered and that the moisture is absorbed during 10 - 500 ms. The invention also relates to a production line for producing fiber webs (W), which comprises at least a calender (20A) with at least one calendering nip (NA). The production line for fiber webs, in particular for board webs, comprises a fiber web machine (50), in particular a board machine, which comprises a head box, a wire section, a press section and a drying section, and at least one moisturizing evaporating cooling module (10), a hard nip calender (20A) with a thermo roll, which has surface temperature at least 120 °C, and a reel-up (40).
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