| 摘要 |
A unitized heat conductive assembly (32) formed of a one piece heat conducti ve conduit (40) which permits shaping the heat conductive assembly as a continuous unit. The heat conductive assembly (32) is press fit into the heater block (12) configured so that it provides a predetermined flow path (14) for the flowable molten plastic materials to be delivered to the inject or nozzles. There is provided a heat flow path (28) that follows the flow path (14). The heat conductive carrying conduit (40) is formed with an opening (42). The conductive conduit (40) is formed from a tubular piece of conducti ve metal such as copper or brass by a swaging process which forms a tubular structure (40) in a continuous length. The outer contour of the tubular structure (40) can be round or oral and the preferred shape is either square or rectangular. The cross section the heat conductive conduit (40) has a dimension W transverse the cross section and a narrower dimension N at the bottom of the cross section so that it is adapted to be press fit into the channel (30). A channel (30) is provided having a dimension W transverse the channel mouth (52) and a narrow dimension N1 at the bottom. The heat conductive conduit (40) forms a press fit within the channel (30). The continuous length of heat conductive conduit(40) is shaped to follow the flo w path (14) of the molten plastic material flowing through the manifold (10).< /SDOAB>
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