This increase in friction is attributed again to an increase in area of contact at the f/m interface by the swollen rayon yarn . 这种摩擦力的增加也是由于FM相交界面粘胶长丝吸湿膨胀引起接触面积扩大的缘故。
Rough and loose structure for rough grain size 接触面积大时用粗松的组织
Fine structure for the smaller contact area 接触面积小时用细密的组织
Coarse grain size for the larger contact area 接触面积大时用粗的粒度
Fine grain size for the smaller contact area 接触面积小时用细的粒度
Hard grade for the smaller contact area 接触面积小时用硬的结合度
Soft grade for the larger contact area 接触面积大时用软的结合度
Large contact area and low surface pressure 接触面积大,面压小。
Distributive mixing is achieved in twin screw extruders with narrow kneding block segments 而分布混合是将熔体分割为条纹,进行均化,增大接触面积。
That can expand gas and air ’ s interaction area and the spa cement of gas into airflow 可以大面积增加燃气与空气的接触面积和燃气进入空气场的扩散空间。