| 摘要 |
PCT No. PCT/SE96/01594 Sec. 371 Date Jun. 17, 1998 Sec. 102(e) Date Jun. 17, 1998 PCT Filed Dec. 4, 1996 PCT Pub. No. WO97/23291 PCT Pub. Date Jul. 3, 1997Refining elements are disclosed for use in refiners in which the refining elements comprise a refining surface with a plurality of raised bars alternating with a plurality of grooves. The raised bars at the inlet of the refining path have a first spacing and form a first angle with respect to a radius or generatrix defining the refining path and the plurality of raised bars at the outlet of the refining path have a second spacing and form a second angle with respect to the radius or generatrix, the first angle being between about 50 DEG and 85 DEG and the second angle being between about -25 DEG and +25 DEG , and the first spacing being greater than the second spacing. |
