Magnetic disk cartridge and method of manufacturing same

摘要

In accordance with the invention a molten resin is injected into a metal mold cavity through a pair of injection gates provided near one end portion of the metal mold cavity, and gas in the cavity is discharged from the metal mold through a degassing arrangement provided at or near at a position where a weld line is expected to be formed by the molten resin injected through the pair of injection gates. $$