公开(公告)号：US07491295B2

公开(公告)日：2009-02-17

申请号：US11416400

申请日：2006-05-02

申请人： Antti Poikolainen ,  Marko J. Moilanen ,  Kari Lamminmäki

发明人： Antti Poikolainen ,  Marko J. Moilanen ,  Kari Lamminmäki

IPC分类号： D21F11/04

CPC分类号： D21F1/523 ,  D21F9/003

摘要： A forming section of a paper or board machine 10 in the forming section of a paper or board machine has a cover 36 having an outlet groove 20 between a suction zone 18 of circular holes and an outlet edge 40. A wire comes to the cover area from an inlet edge 38 and leaves from an outlet edge 40. The outlet groove 20 is essentially in the cross-machine direction of the cover 36. The suction zone accomplishes non-pulsating dewatering, and the outlet groove accomplishes pulsating dewatering. The non-pulsating suction zone first accomplishes good retention, and after this formation is improved on the outlet groove. When pulsating dewatering takes place in the same direction as non-pulsating dewatering and immediately after non-pulsating dewatering, the web formed has a particularly good formation potential. Potential marking caused by non-pulsating dewatering can also be removed efficiently by means of pulsating dewatering taking place on the same side.

摘要翻译： 在纸或纸机的成形部分中的纸或纸机10的成形部分具有盖36，该盖36在圆形孔的吸入区18和出口边缘40之间具有出口凹槽20.导线到达覆盖区域 从入口边缘38离开出口边缘40.出口槽20基本上在盖36的横向方向上。抽吸区完成非脉动脱水，出口槽完成脉动脱水。 非脉动抽吸区首先实现良好的保留，并且在出口槽上改善这种形成之后。 当脉动脱水发生在与非脉动脱水相同的方向上，并且在非脉动脱水之后，形成的幅材具有特别好的形成潜力。 通过在同一侧发生脉动脱水，可以有效地消除由非脉动脱水引起的潜在标记。