公开(公告)号：US10166546B2

公开(公告)日：2019-01-01

申请号：US14255379

申请日：2014-04-17

Applicant: ANDRITZ INC.

Inventor： Mikael Rehnstrom ,  Ismo Ihalainen ,  Yves Raymond

IPC: B02C7/12 ,  B02C7/02 ,  D21D1/00 ,  D21D1/30 ,  B22D31/00

Abstract: A light weight plate segment configured to be mounted on a disc of a disperser or refiner for comminuted cellulosic material including: a front face having disperser teeth or refining bars; a back face having a raised post surrounding a fastener attachment structure and a raised plate positioning section; side edges of the plate segment; and a radially outer edge and a radially inner edge extending between the side edges; wherein the back face lacks raised structures along the side edges.