| 摘要 |
<p>A system for manufacturing a CD (3) of any shape that is no larger than a standard round CD (2), wherein the specially shaped CD (3) is manufactured using an injection molding process which only requires enough polycarbonate material as is specifically required to fill the specially shaped CD cavity (34). The injection molding process is made possible by constructing of the mold that also functions as a venting ring (30) within a CD injection molding press. The mold is slightly thinner than those commonly used in the industry. The result is that the build-up of gases is eliminated without having to construct a specialized venting grid.</p> |
