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Modern Closed-Draw Press Sections

机译:现代封闭式冲压机

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The limitations of the conventional center roll based press concept at high speeds have been understood for years now.These limitations mainly stem from the increased draw required to release the sheet from the center roll(Fig.1).The speed barrier has been pushed up through various component solutions,but the speed of center roll based press concepts is still moving along a flattening curve approaching 2,000 m/min.No speed limit is in sight for the so-called closed-draw press sections addressed in this article as all open draws from the press to the dryer section have been eliminated.
机译:传统的基于中心辊的高速印刷机的局限性已经被认识了很多年,这些局限性主要是由于增加了从中心辊上释放纸张所需的拉伸量(图1)。通过各种组件解决方案,但基于中心辊的压力机概念的速度仍沿接近2,000 m / min的展平曲线移动。本文提到的所谓的封闭式冲压机部分都没有速度限制,因为它们都是开放式的消除了从压机到干燥机部分的拉丝。

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