| 摘要 |
<p>PCT No. PCT/CH97/00036 Sec. 371 Date Oct. 7, 1997 Sec. 102(e) Date Oct. 7, 1997 PCT Filed Feb. 5, 1997 PCT Pub. No. WO97/28945 PCT Pub. Date Aug. 14, 1997The hot channel die (1) is arranged within a casing (13) filled with oil. In the hollow space (15) filled with oil, baffles (17, 19) are installed which effect a current of the oil directed toward the two ends of the die (1). For this purpose, the heating element (23) is arranged on the underside of the casing (13). The discharge sleeve (117), which introduces the liquid plastic from the feeding screw, discharges into the hollow body (115), which is mounted in a recess in the hot runner plate (105) of a hot channel injection molding die. The distribution conduits (119), which are constructed as curved tubes, are installed on the discharge sleeve (117), and lead to the side wall (121), against which the rear ends of the injection nozzles lie. The hollow space (125) is filled with a heat-conducting medium, for example oil, which is heated by a heater (127) and uniformly circulated within the hollow space (125) by convention or motorized circulation. Baffles (131) optimize the circulation of the medium and its return guidance to the heater (127).</p> |
