| 摘要 |
PURPOSE:To obtain the titled die to mold a multilayer tube resin product in which structure is made simple, temperature is easy to control and resin burning hardly occurs, etc. by providing a temperature control mechanism to heat or cool inner layer resin within the inner layer resin passage. CONSTITUTION:An intermediate die 12 is inserted into a die body 11 having a nearly cylindrical internal circumferential surface, the external layer resin passage 13 is provided between the above-mentioned internal circumferential surface and the external circumferential surface of the intermediate die 12 to connect with the inlet 14 of the external layer resin. On one hand, the mandrel 16 is inserted into the internal circumferential surface of the intermediate die 12, the internal layer resin passage 17 is provided between the external circumferential surface of the mandrel 16 and the above-mentioned internal circumferential surface to connect with the inlet 18 of the internal layer resin and the temperature controlling device 21 is fixed to obtain the intended die. Further, a heat insulating means 22 may be provided between the internal layer resin passage 17 and the external layer resin passage 13. |
