| 摘要 |
An injection molding apparatus 10 comprising: an injection molding machine 20, a heated manifold 30, a nozzle 50, the downstream end 50d of the nozzle 50 comprising an inner tubular member 55 having a central flow channel 300 and an outer circumferential surface 55es and an outer tubular member 56 having an inner tubular surface 56is, the outer tubular member 56 forming a seal 57, 86, 54, 58 surrounding the gate 85, the inner 55 and outer 56 tubular members being adapted to form a sealed circumferential gap G, the inner tubular member 55 including one or apertures 500 extending radially R through the inner tubular member 55 to route flow radially R from the fluid flow channel 300 into the circumferential gap G. |
