测试和分析了纺丝速度、轧点面积和轧辊压力对纺粘热轧滤膜透水率的影响。
The influences of spinning speed, bonding area and roller pressure on the permeability performance of PET spun-bonded prefabricated vertical drain filters were tested and analyzed.
轧片机：是对原料施加压力，经两平行轧辊转动将原料轧制成片，提高了原料的堆比重。
Compactor: With certain pressure, the materials will be rolled into slices under the action of double rollers. Thus the bulk density of the materials will be increased.
本公式考虑铝箔入口和出口弹性变形和轧制铝箔两侧轧辊辊身端部弹性接触压力对轧制力的影响。本公式计算精确而且简便。
The influence of the bite, the entrance and exit elastic deformation and the roller both ends contact pressure is considered. The formula is convenient and precise.
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