DEHYDRATION COMPONENT ON FORMATION PART OF PAPERMAKING MACHINE OR BOARD-MAKING MACHINE AND COVER OF DEHYDRATION COMPONENT OF PAPER-MAKING MACHINE OR BOARD-MAKING MACHINE

摘要

PROBLEM TO BE SOLVED: To attain dehydration component on a formation part of a papermaking machine or a board-making machine bringing about optimal relationship between retention and formation than before. SOLUTION: The present invention relates to a dehydration element on a formation part of a paper-making machine or a board-making machine. The formation part comprises a movable wire bringing into contact with a wall and the wall comprises an unpulsating suction zone having the same degree of width as width of wire. The wall comprises an outlet groove behind the suction zone in advancing direction of the wire and the outlet groove is essentially provided in the lateral direction of the papermaking machine or board-making machine. COPYRIGHT: (C)2008,JPO&INPIT