| 摘要 |
PCT No. PCT/SE95/00597 Sec. 371 Date Dec. 9, 1996 Sec. 102(e) Date Dec. 9, 1996 PCT Filed May 26, 1996 PCT Pub. No. WO95/34715 PCT Pub. Date Dec. 12, 1995A calendering system in a papermaking or board manufacturing process, the system comprising at least one press nip, an endless calender belt (30) having a core (32) and a compressible, elastic material bonded to the core (32), as well as a paper or paperboard web (16) which passes together with the belt (30) through the press nip and the dewatering of which is completely or at least substantially completely terminated earlier in the manufacturing process. The calender belt (30) has in its thickness direction a first hardness on the side (34) of the core (32) closest to the web (16) and a hardness on the opposite side (36) of the core (32) that is higher than the first hardness. The first hardness is so selected in relation to the web (16) that the surface (38) of the calender belt (30) engaging the web (16) can adapt its shape in the press nip (14) to unevennesses in the surface (20) of the web (16). |
