The author holds that the use of spiralmandreldie is a good method to eliminate the fusion jointing line to improve the product quality, and it should be adopted in the p…
作者认为螺旋芯棒机头是解决熔接线提高制品质量的较好办法，应推广到管材挤出生产中去。
2
In addition, since the geometry of the flow channel in a spiralmandreldie is quite complex, it is difficult to create the FEM model of the flow channel by those ordinary ways.
此外，由于螺旋式管机头流道的复杂性以及畸形性，用通常方法很难建立起该流道的有限元模型。
3
Spiralmandrel blown-film die is advanced and widely used in film blowing which is one of the most popular processing for plastics film.