FIELD: production of paper; production of cellulose.
SUBSTANCE: cast metal plate segment for refiner lignocellulosic material or dispersant of crushed paper or packaging products, wherein the plate segment includes a front face with a front surface adapted to grind the lignocellulosic material or to disperse crushed paper or packaging products, and a rear side opposite to the front side including a corner or edge, wherein the corner or edge comprises a cast surface between machined planar surfaces adjacent to a corner or edge.
EFFECT: this disclosure relates to mechanical refiners for pulping wood chips and other comminuted lignocellulosic materials.
9 cl, 5 dwg
