MOLDED PRODUCT HAVING THROUGH-HOLE, MOLD FOR MOLDING IT AND MOLDING METHOD USING THE MOLD

摘要

PROBLEM TO BE SOLVED: To obtain a mold capable of efficiently forming a molded product having a through-hole without requiring a special molding machine or apparatus and a post process, a molding method using it and the molded product. SOLUTION: A third flow channel 8 is formed to a fixed mold 13 so as to communicate with a cavity 18 through a communication port 11 and a pin 15 is arranged to a movable mold 13 so as to pass through the cavity 18 to extend into the third flow channel 8 from the communication port 11. A cavity inflow port 19 is formed to the annular flow channel formed between the inner peripheral surface of the communication port 11 and the outer peripheral surface of the pin 15 and has a flow channel cross-sectional area smaller than that of the third flow channel 8. COPYRIGHT: (C)2005,JPO&NCIPI