公开(公告)号：US5649448A

公开(公告)日：1997-07-22

申请号：US441414

申请日：1995-05-12

申请人： Jouni Koskimies ,  Harri Mustonen ,  Jorma Virtanen ,  Markku Ellila

发明人： Jouni Koskimies ,  Harri Mustonen ,  Jorma Virtanen ,  Markku Ellila

IPC分类号： D21F1/06 ,  D21F7/06 ,  D21G9/00 ,  G01L5/04

CPC分类号： D21F7/06 ,  D21G9/0009 ,  B65H2553/822

摘要： A method for controlling transverse profiles of a web in a web-manufacturing machine, such as a board or paper machine, and/or being treated in a finishing machine. At least one of a transverse caliper, grammage and moisture profiles of the web is measured either directly or indirectly. Actuators acting upon these profiles are regulated by measurement signals. In order to optimize the quality of the web to be produced, the reel formation, and the runnability of the machine, the transverse tension profile of the web to be manufactured and/or treated is measured. Based on the measurement of the transverse tension profile, set profiles are formed which control the actuator(s) of the profile regulation.

摘要翻译： 一种用于控制幅材制造机器（例如纸板或造纸机）中和/或在精加工机器中处理的幅材的横向轮廓的方法。 直接或间接地测量网的横向卡尺，克重和湿度分布中的至少一个。 作用于这些轮廓的致动器由测量信号调节。 为了优化要生产的幅材的质量，卷轴的形成和机器的运行性能，测量待制造和/或处理的幅材的横向张力分布。 基于横向张力分布的测量，形成了控制轮廓调节的致动器的设定轮廓。

公开(公告)号：US5483873A

公开(公告)日：1996-01-16

申请号：US205958

申请日：1994-03-02

申请人： Pekka Koivukunnas ,  Harri Kuosa ,  Jussi Tuomela ,  Markku Ellila ,  Mikko Tani

发明人： Pekka Koivukunnas ,  Harri Kuosa ,  Jussi Tuomela ,  Markku Ellila ,  Mikko Tani

IPC分类号： D21G1/00 ,  D21G1/02

CPC分类号： D21G1/0093

摘要： A paper web is passed through a calendering nip that is formed between a roll which has been provided with a soft face and a heatable hard roll. The heatable roll is heated so as to plasticize the surface layer of the paper web that is placed at the side of the heatable roll, preferably so that the temperature of the surface layer in the calendering nip exceeds the glass-transition temperatures of the polymers contained in the paper. Before entering into the calendering nip, the paper web is moistened, so as to lower the glass-transition temperatures of the polymers contained in the paper, and pre-heated. The pre-heating of the paper web is carried out by bringing the paper web into contact with the heatable roll before the web enters the calendering nip and by, before the calendering nip, feeding steam or water onto the face of the paper web that is placed at the side of the heatable roll so as to improve the transfer of heat from the hot roll to the paper web.

摘要翻译： 纸幅通过形成在已经设置有软面的辊和可加热硬质辊之间的压延辊隙。 可加热辊被加热以使放置在可加热辊一侧的纸幅的表面层发生塑化，优选地使得压延辊隙中的表面层的温度超过包含的聚合物的玻璃化转变温度 在论文中。 在进入压延辊隙之前，纸幅被润湿，以降低包含在纸中的聚合物的玻璃化转变温度并预热。 纸幅的预热通过在纸幅进入压延辊隙之前使纸幅与可加热辊接触来进行，并且在压延辊隙之前，将蒸汽或水输送到纸幅的表面上 放置在可加热辊的侧面，以便改善从热辊到纸幅的热传递。

公开(公告)号：US5524532A

公开(公告)日：1996-06-11

申请号：US364690

申请日：1994-12-28

申请人： Pekka Koivukunnas ,  Markku Ellila

发明人： Pekka Koivukunnas ,  Markku Ellila

IPC分类号： D21G1/00 ,  B30B15/34

CPC分类号： D21G1/0093

摘要： In the inventive method and apparatus for calendering a surface of a paper or board web, a temperature difference is created between the web surfaces so that the surface to be calendered is cooler than the opposite surface. In addition, moisture within the web is transferred using the so-called heat pipe effect toward the cooler surface while substantially preventing evaporation of moisture from the web so as to create a predetermined moisture profile transversely through the web and decrease the glass transition temperature of the web at the relatively cooler surface to be calendered. Finally, the web having the predetermined moisture profile is advanced into the calendering nip so that the relatively cooler and moister surface of the web is pressed against the heated roll of the nip to thereby calender that web surface.

摘要翻译： 在用于压延纸或纸板的表面的本发明的方法和装置中，在幅材表面之间产生温度差，使得待砑光的表面比相对表面更冷。 此外，使用所谓的热管效应将幅材内的水分转移到冷却器表面，同时基本上防止水分从纸幅的蒸发，从而横向穿过纸幅产生预定的湿度分布并降低玻璃化转变温度 在相对较冷的表面进行压延处理。 最后，具有预定湿度分布的纤维网被推进到压延辊隙中，使得幅材的相对较冷和湿润的表面被压靠在辊隙的加热辊上，从而压平该幅材表面。