| 摘要 |
PROBLEM TO BE SOLVED: To provide a die-casting machine with which even in the case of being the high speed range of the conventional injection speed (in the case of being≤2.5 m/sec injection speed), a die clamping force is reduced by reducing the peak value of a surge pressure and also, the prolongation of the service life of the die can be obtained by reducing pressure variable value (amplitude) of the surge pressure. SOLUTION: In an injection apparatus of the die-casting machine, the maximum injection speed is≤2.5 m/sec, and a plunger rod and an injection piston are made of a titanium-aluminum base light alloy. Further, the titanium-aluminum base light alloy contains 2.5-8.35 wt.% aluminum. COPYRIGHT: (C)2004,JPO&NCIPI
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