Beschreibung:
AbstractThe serviceability of non‐return valves has a major influence on the productivity of the injection molding process. During a meeting of experts held at our Institute, it was seen that closing behavior and wear are the key problems encountered in practice. The conducted investigations to tackle these questions have shown that both an improved closing behavior and a lower level of wear can be achieved by reducing the inside radius of the locking ring.Pressure profile over the length of a non‐return valve (n = 0.4; ${\rm \dot V}$ = 25 000 mm3/s).magnified imagePressure profile over the length of a non‐return valve (n = 0.4; ${\rm \dot V}$ = 25 000 mm3/s).