The effects of changes in tranquil flow velocity on paper fibre orientation and formation: Ensis-Papro Pilot Scale Former

机译：平静流速变化对纸纤维取向和形成的影响：Ensis-Papro Pilot Scale前身

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The Ensis-Papro Pilot Scale Former, formerly known as Clayton 1, was used to investigate the effect of variations in jet-to-wire velocities on paper formation and fibre orientation in tranquil flow for 80 g/m~2 sheets formed from de-inked, recycled hardwood pulp in the laboratory. Sheet properties were measured using an optical scanning formation procedure and a sonic fibre orientation analyser. Increasing the stock flow rate (0.095 m/s to 0.27 m/s) resulted in a decrease in formation index from 8.8% to 7.1% and an increase in MD/CD ratio from 1.18 to 1.32. The changes in sheet properties were attributed to increased shear rate in the stock flow.

机译：Ensis-Papro中试规模仪（前身为Clayton 1）用于研究80 g / m〜2的脱毛纸形成的喷丝速度对静流中纸张形成和纤维取向的影响。在实验室中将已回收的硬木纸浆着墨。使用光学扫描形成程序和声波纤维取向分析仪测量片材性能。库存流量增加（0.095 m / s至0.27 m / s）导致地层指数从8.8％下降至7.1％，MD / CD比从1.18上升至1.32。片材性能的变化归因于纸浆流动中剪切速率的增加。

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来源
《Appita Annual Conference and Exhibition incorporating the ISWFPC(International Symposium on Wood, Fibre and Pulping Chemistry) vol.1: Appita Conference Sessions; 20050516-19; Auckland(NZ)》|2005年|P.1-6|共6页
会议地点 Auckland(NZ)
作者
MICHAEL J. WEDDING; RICHARD J. N. HELMER; WARWICK D. RAVERTY; NOEL B. CLARK; GEOFFREY M. IRVINE; NAFTY VANDERHOEK;
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作者单位

Experimental Scientist, Member Appita, Ensis-Papro, Private Bag 10 Clayton South, Victoria 3169 Australia;

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原文格式 PDF
正文语种 eng
中图分类造纸工业;
关键词
fibre orientation; grammage; froude number; formation; paper; jet-to-wire velocity; pilot scale former; pulp flow; fourdrinier;

机译：纤维取向;克制;弗洛伊德数;形成;纸;喷射线速度;中试仪;浆流;长网;

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The effects of changes in tranquil flow velocity on paper fibre orientation and formation: Ensis-Papro Pilot Scale Former

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