INJECTION MOULDING OF MARBLED PARTS

摘要

The moulding is performed by a device incorporating a torpedo having a cylindrical body (1), provided at its front outlet end with a front conical extension (2) and at its rear end with a rear conical extension (3). The diameter of the base of the front conical extension corresponds to the diameter of the body. A plurality of peripheral channels (4) extend longitudinally along the whole length of the body and into the adjacent portion of the front conical extension.