| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of manufacturing a tubular member capable of surely and easily manufacturing a tubular member of an optional shape incapable of being integrally molded because a core die can not be extracted to the outside from between bent parts adjacent to each other. <P>SOLUTION: In this method of manufacturing a tubular member for molding the tubular member A by injecting a molten material into an injection space formed by closing an inner die and an outer die, a tubular core member 8 is used as at least a part of the inner die; the core member 8 is arranged at a predetermined position where an inner hole of the core member 8 forms an inner hole 10 of the tubular member A to close the dies; the molten material 6 injected into the injection space is cooled; the core member 8 is left when opening the inner die and the outer die; and the tubular member A is manufactured by using the core member 8 integrated with the cooled and solidified molten material 6 as a constituent. <P>COPYRIGHT: (C)2013,JPO&INPIT |
