FOUNTAIN FLOW IN WATER-ASSISTED MELT FILLING

摘要

Water-assisted injection molding (WAIM) provides a new means to manufacture hollow parts at lower costs. However, little work has been done to understand how the polymer melt flows under applying high pressure water. Experimental investigations on the melt flow, especially the fountain flow during water-assisted melt filling in an emulated mold were conducted in this work. The experimental results revealed the formation of fountain flow during melt filling under applying high pressure water.