| 摘要 |
A refining plate segment (10) for a mechanical refiner of ligno-cellulosic material including: a refining surface on a substrate, wherein the refining surface faces a refining surface of an opposing refiner plate, the refining surface including bars (18) and grooves (22) between the bars (18), wherein an angle (20) of each bar (18) with respect to a radial line corresponding to the bar increases at least 15 degrees along a radially outward direction, and the angle (20) is a holdback angle in a range of 10 to 45 degrees at the periphery of the refining surface, and wherein the bars (18) each include a leading sidewall (38) having an irregular surface, wherein the irregular surface includes protrusions extending outwardly from the sidewall towards a sidewall on an adjacent bar (18). |
