| 摘要 |
A manifold for an injection molding apparatus is provided to secure firm connection by plastically deforming a plastic deformation boss of a molding with a pressing force applied during a forging work and pressing the plastic deformation boss into a movement preventing recess formed in a molding channel. In a manifold(10) for an injection molding apparatus, an installation recess of the manifold includes a pipe channel and a molding channel. A circular heating pipe is formed so as to be inserted. The molding channel is connected to the upper side of the pipe channel. A movement preventing recess is formed in the molding channel. The movement preventing recess is expanded while proceeding down. A plastic deformation boss has the same rectangular shape as that of the molding channel. The plastic deformation boss is inserted and fitted by a forging process. The plastic deformation boss is pressed into the movement preventing recess. The width of the molding channel is larger than the width of the inlet side of the pipe channel which a heating pipe(20) enters.
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