考察了宽幅机头对于不同厚度片材的挤出适应性，得到结论:当生产不同厚度的片材时，阻尼块高度需要调整。 关键词:高分子防水卷材，三维有限元，流场分析，挤出机，机头

• As far as the practicability of the die for the thickness, the height of the block would be adjusted when extruding the sheets with different thickness.