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    • 8. 发明公开
    • APPARATUS AND METHOD FOR CONTROLLING CURLING POTENTIAL OF PAPER, PAPERBOARD, OR OTHER PRODUCT DURING MANUFACTURE
    • 用于控制制造期间的纸张,纸板或其他产品的卷曲潜力的装置和方法
    • EP2572038A2
    • 2013-03-27
    • EP11783953.0
    • 2011-05-06
    • Honeywell International, Inc.
    • SHAKESPEARE, John F.
    • D21F11/00G01N21/84B65H43/00
    • D21G9/0027D21F7/06G05B17/02
    • A method includes receiving a measurement associated with an anisotropy of a first surface and a measurement associated with an anisotropy of a second surface of a sheet of material (108, 215). The method also includes adjusting an operating parameter associated with a headbox (112, 240-250) based on the measurements. The headbox is associated with manufacture of the sheet. The operating parameter could include a jet speed (144), a jet impingement angle (148), a jet thickness, a slice opening, and/or a slice apron projection (142). Adjusting the operating parameter could be based on a difference between a measured anisotropy of the first surface and a measured anisotropy of the second surface. For example, the operating parameter could be adjusted to achieve a desired difference between the measured anisotropy of the first surface and the measured anisotropy of the second surface. Multiple headboxes (240-245) could be controlled, such as when different headboxes are used to produce different layers of a multi-layer sheet (215).
    • 一种方法包括接收与第一表面的各向异性相关联的测量和与材料片材(108,215)的第二表面的各向异性相关联的测量。 该方法还包括基于测量来调整与流浆箱(112,240-250)相关联的操作参数。 流浆箱与片材的制造相关联。 操作参数可以包括喷射速度(144),射流冲击角度(148),射流厚度,切片开口和/或切片挡板投影(142)。 调整操作参数可以基于第一表面的测量各向异性与第二表面的测量各向异性之间的差异。 例如,可以调整操作参数以实现第一表面的测量各向异性与第二表面的测量各向异性之间的期望差异。 例如当不同的流浆箱用于生产不同层的多层板(215)时,可以控制多个流浆箱(240-245)。