| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a foaming roller and a metallic die for molding a foaming roller by which waste material is decreased and a cleaning stage for a metallic die for molding is reduced, and a void due to involving air when injecting material is hardly caused. <P>SOLUTION: The method for manufacturing the foaming roller includes: a first stage in which a lower dowel having a communicating hole on the center axial line of a pipe metallic die whose both ends are made open is arranged to cover over the opening at the lower end of the pipe metallic die, core material is inserted from the lower end of the lower dowel in the arranged state, and the core material is held in such a state that it projects from the lower end of the lower dowel by predetermined length; a second stage in which foaming elastic layer material is injected in the pipe metallic die so as to drop on the wall surface of the pipe metallic die from the upside of the pipe metallic die; a third stage in which the core material is fixed after it is pushed upward before the foaming elastic material foams and adheres to the upper end of the core material; and a fourth stage in which the foaming elastic material is heated/cured. The pipe metallic die is inclined by 1-45° from erect posture from the first stage to the third stage. <P>COPYRIGHT: (C)2008,JPO&INPIT |
