| 摘要 |
<p>A papermaking process employs a broad-nip calender with a top drum (2) rotating in contact with a bottom drum mantle (3) that is pressed upwards by a shoe (4). The lower drum mantle extends beyond the upper drum, and is depressed by a retaining roller (17) : The retaining roller is in contact with the drum mantle (3) outer margin. The top drum (2) outer margin (14) is of lesser diameter than the drum case (15), forming a gap for the retaining roller (17).</p> |
