METHOD IN CONNECTION WITH A PAPER OR BOARD MACHINE HEADBOX AND A LAMELLA OF A PAPER OR BOARD MACHINE HEADBOX

摘要

The invention relates to a method in connection with a paper or board machine headbox, in which method in a slice channel of the headbox is used at least one lamella (16) for forming/maintaining turbulence of stock suspension. In the method, the vibration of the lamella (16) and the wave created as a result of it are damped by means of a medium layer (30) arranged inside the lamella (16). The invention also relates to a lamella of a paper or board machine headbox which is located in a slice channel (15) of the headbox (10). A medium layer (30) is arranged inside the lamella (16) for damping the vibration of the lamella (16) and the wave created as a result of it.