| 摘要 |
PURPOSE:To manufacture a crystallized PEEK resin pipe by cooling quickly a PEEK resin pipe material extruded from a die at the sizing part, after that, supplying it to the heating part, and reheating, and then cooling gradually, the molded and cured PEEK resin pipe up to a degree not being deformed. CONSTITUTION:The pipe molding material 3 of heated molten PEEK resin is extruded from the die 2 of an extruding mold 1, and it is introduced into a sizing part 4. The pipe molding material 3 is in a non-crystallized condition, namely, shows brown tint. The PEEK pipe material 3 introduced therein moves in close contact with the inner diameter wall surface of the sizing part 4, and as cooled and cured, a two colored pipe consisting of brown part by a non- crystallized layer 6 in its outer surface and gray part by a crystallized layer in its inner part. Next, the PEEK resin pipe 5 is introduced into a heating part 7, and it is preferably reheated by means of a far infrared ray heater. Thus, since the non-crystallized layer 6 of outer surface of the PEEK resin pipe 5 is turned into a crystallized condition, namely, a grey tint, a gray PEEK resin pipe crystallized entirely can be obtained. |
