| 摘要 |
<p>An apparatus for improving the pulping characteristics of wood chips in which a pair of closely operating rolls (40, 42 or 50, 52) are provided for supplying compressive force to chips passed therebetween, at least one roll having an aggressively contoured surface (100) for causing chips to crack in the thickness dimension of the chip as compressive force is applied to the chip.</p> |
