The refrigeration state simulation equipment was be established

to research the fluid flow characteristics in spinning assembly. The results show that:the use of glucose syrup solution as PA6 melt the analog medium was feasible

syrup viscosity PA6 melt viscosity was similar to the viscosity values under certain conditions and variation similar syrup viscosity with increasing shear rate appears shear thinning phenomenon;the viscosity of syrup at a temperature of 21℃ was close to viscosity of PA6 melt at 265℃

the syrup as an analog medium was feasible. Flow characteristics in a transparent spinning assembly through the analog medium show:fluid flow in the spinning pack sand in the chamber was not ideal plug flow

the residence time of the gland below the material than four weeks long

was not conducive to the uniformity of material properties. The results of this study to optimize the spinning pack to lay a certain foundation.