| 摘要 |
PROBLEM TO BE SOLVED: To provide a die, which enhances the cooling property of a die for die-casting and further prevent cooling water from spouting to the surface of the die even if a crack is generated on the molten-metal contact surface of the die. SOLUTION: The die comprises: an outside member 101 composed of hot-tool-steel, in which an insertion hole 101B having an opening 101A is formed; and an inner member 103 composed of copper or copper alloy having a space 102, through which cooling water is made to flow and one end 102A of which is blocked. The inner member 103 is tightly inserted into the insertion hole 101B of the outside member from the side of the one end 102A. COPYRIGHT: (C)2007,JPO&INPIT
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