cross swell detail 横向海浪
The cross section of the fibres changes from kidney shaped to circular. This is because the fibres swell markedly when treated with a concentrated sodium hydroxide solution.
纤维交叉的区域由腰子的形状变成圆形，这是因为纤维在经过浓缩的氢氧化钠的作用下明显地膨胀了。
The swell factor tends to decrease if the cross section of die crown is large, the die round R is small, the runner is large, the dumping temperature is high and the extrusion speed is low;
口型的冠部截面大、口型圆角R小、流胶口大，排胶温度高，挤出速度慢，则膨胀因数小；
应用推荐