Spinnerette head assembly with porous metal filter and shear element

摘要: A spinnerette head assembly for extrusion of synthetic polymer fibers has a porous extended area filter with metal tubular elements extending therefrom to provide large filtration area. Downstream from the or within each element is shear which provides desired pressure drop in liquid passing through head. must have larger pore size than so that will not perform any function. In addition, at least as great provided by upstream element. If disk placed downstream filter, constrictors may be below reduce flow into and thus increased shear.