| 摘要 |
<p>A method for making a stopper. The method includes the step of providing a first tool defining a first tool cavity and a second tool defining a second molding cavity (76). A first plug member having an upper surface and a lower surface also is provided, the upper surface of the first plug member having a concave portion (70). The first plug member is faced in the first cavity such that at least a portion of the lower surface of the first plug member is in contact with the first cavity. The second tool defines a hole therethrough such that the hole (82) provides fluid contact between the second tool cavity and a point exterior to the second tool. A polymeric material is transferred through the hole (82) defined by the second tool into the second cavity (76) defined by the second tool and into the concave portion (70) of the upper surface of the first plug member such that the polymeric material forms a second plug member having an upper surface and a lower surface, the upper surface of the second plug member being defined by the molding surface defined by the second tool. The first plug member and the second plug member define a stopper. The stopper is then removed from the first and second tools.</p> |
