公开(公告)号：US06372091B1

公开(公告)日：2002-04-16

申请号：US09336621

申请日：1999-06-18

申请人： Vaughn J. Wildfong ,  Jeffrey C. Irwin ,  Jay A. Shands ,  Robert L. Clarke

发明人： Vaughn J. Wildfong ,  Jeffrey C. Irwin ,  Jay A. Shands ,  Robert L. Clarke

IPC分类号： D21F100

摘要： A method and apparatus for beginning the formation of a paper web on a traveling forming wire, or between a pair of converging forming wires, includes a headbox on a papermaking machine for projecting a stock stream onto the forming wire, or between the forming wires over the porous face surface of a forming shoe. The forming wire or wires are looped to travel in a continuous path, and within at least one of the looped forming wires is the forming shoe, which is porous by way of grooves or openings over at least a portion of its face surface. The grooves are in the surface of the forming shoe which engages the inner surface of the looped forming wire to define a portion of the path of travel of the forming wire adjacent the headbox from which the stock stream is projected onto, or between, the forming wire(s). The grooves extend in the surface facing the forming wire from a point downstream of the leading edge in the nose portion of the face surface of forming shoe in the direction of forming wire travel. The grooves are angled at a small angle relative to the direction of forming wire travel. The grooves or openings receive water through the forming wire to gradually reduce the amount of water in the stock to control the initial stage of the formation of the nascent paper web on the forming wire over the forming shoe.

公开(公告)号：US07578906B2

公开(公告)日：2009-08-25

申请号：US11670188

申请日：2007-02-01

申请人： Jay A. Shands ,  James A. Ronning ,  George C. Mendrala ,  Vaughn J. Wildfong ,  Douglas R. McPherson

发明人： Jay A. Shands ,  James A. Ronning ,  George C. Mendrala ,  Vaughn J. Wildfong ,  Douglas R. McPherson

IPC分类号： D21F1/06

CPC分类号： D21F1/02 ,  D21F1/022 ,  D21F1/08

摘要： A headbox including a stock dilution profiling arrangement and associated stock delivery systems are provided, which together deliver to the forming section of a papermaking machine a uniform stock flow with more consistent basis weight and fiber orientation profiles than has previously been possible. These improvements in basis weight uniformity and fiber orientation profile provide benefits in paper sheet formation and related paper properties.

摘要翻译： 提供了一种流浆箱，其包括库存稀释分析装置和相关的库存输送系统，其一起向造纸机的成形部分提供均匀的原料流，其具有比先前可能的更均匀的基重和纤维取向轮廓。 这些基重均匀性和纤维取向轮廓的改进提供了纸张形成和相关纸张性质的优点。