| 摘要 |
An injection-molding tool (10) for the production of information carriers in disc form, in particular in the form of CDs and/or DVDs, comprises for the forming of an injection mold (25) a first and a second mirror block (11 and 12, respectively), which lie opposite each other and are movable in relation to each other for opening and closing the mold and also a form ring (20), which concentrically encloses the first mirror block (11) and closes off the injection mold (25) towards the outer edge and is movable in relation to the first mirror block (11), means for reducing the friction when there is a movement of the form ring (20) in relation to the first mirror block (11) being provided between the first mirror block (11) and the form ring (20) enclosing it. In the case of such an injection mold, the production of information-carrier discs of a particularly high quality is made possible in a simple way by the means comprising a sliding ring (21; 21a,b,c) arranged concentrically between the first mirror block (11) and the form ring (20) enclosing it. |
