The minimum depth of conicaldie and the relationship between coning of die cavity and workpiece length are determined;
确定了锥形模膛的最小长度、模腔锥角与毛坯长度的关系;
2
Discussed thoroughly the extrusion swell phenomenon and mechanism of polymer melts in conicaldie with different entrance angles and different ratios of length to diameter.
深入讨论了聚合物熔体在不同长径比、不同角度圆锥口模的挤出胀大现象及机理。
3
The results show that the extensional flow of melt in convergent die results in intense entrance elastic effect and distinct extrusion swell in conicaldie with different angles.