公开(公告)号：EP0819043B1

公开(公告)日：2002-02-06

申请号：EP96909415.0

申请日：1996-03-11

申请人： Valmet Fibertech AB

发明人： LUNDGREN, Göran ,  SCHEDIN, Kurt ,  SISLEGARD, Lars-Otto ,  THORBJÖRNSSON, Sven-Ingvar

IPC分类号： B27N3/00

CPC分类号： B27N3/24

摘要： A method for the continuous manufacture of board from lignocellulosic material, where the material is disintegrated to particles and/or fibers, dried, glue-coated and formed to a mat and pressed to a finished board. The formed mat is heated with steam and thereafter compressed to near final thickness, whereafter it is pressed to a manageable board in a calibration section.

公开(公告)号：EP0885099B1

公开(公告)日：2002-06-12

申请号：EP97907521.5

申请日：1997-03-06

申请人： Valmet Fibertech AB

发明人： THORBJÖRNSSON, Sven-Ingvar

IPC分类号： B27N3/18 ,  B27N3/24

CPC分类号： B27N3/24 ,  B27N3/086 ,  B27N3/10

摘要： In a method of pre-pressing a formed web of finely-divided lignocellulosic fibre material prior to pressing the web to a finished state in the continuous manufacture of board material, the fibre material is compacted and pressed successively in an entry section (7) of a pre-press (6) subsequent to being formed into a web (11) and subsequent to a first compression and expansion. The web is compressed in this latter pressing process to a density close to the density of the web after the first compression, whereafter the web is allowed to expand to a controlled limited extent in a pre-press expansion section (9), and thereafter transferred to the finishing press. Steam (A, B) is injected into the web (9) when the web is located in the pre-press (6).

公开(公告)号：EP1098742A1

公开(公告)日：2001-05-16

申请号：EP99933323.0

申请日：1999-06-03

申请人： Valmet Fibertech AB

发明人： THORBJÖRNSSON, Sven-Ingvar ,  MATHIASSON, Mikael

IPC分类号： B27N3/14

CPC分类号： B27N3/14

摘要： Method for continuous forming of a fiber mat for manufacturing fiberboard according to the dry method, including metering fiber material and depositing the material on a surface of a moving transport means and forming the mat by means of adjustable rotating forming rolls (1). The forming rolls (1) are working in the deposited material whereby the upper surface of the mat is defined by the last forming roll (5). A bulb (4) of material is formed in front of the last forming roll (5) and the size of the bulb is indicated and used for control of the vertical position of the last forming roll (5).