The Plastic Deformation of High Polymers and their Extrusion in Solid State

Measurement was made of the pressure below which the steady state rate of extrusion is negligibly slow, and above which it grows with steep slope against increasing extruding pressure, i. e. extrusion pressure, as the function of entrance angle α of cone shaped dies. The extrusion pressure increases with increasing α. This tendency, which can not be explained with the equation of the preceding paper, was analyzed according to the method of the...