| 摘要 |
PURPOSE:To obtain good abutment, to possibly prevent the temp. drop of molten metal and to cast good castings at high efficiency by blowing gas to the upper margin of an injecting sleeve at the time of abutting vertically an inclined injecting sleeve after pouring on the fixed sleeve of a metallic mold. CONSTITUTION:The molten metal 44 is poured into the inclined injecting sleeve 35 of a vertical injection apparatus 31 for a vertical type casting unit 28 by the prescribed quantity from a ladle 42. The sleeve 35 is positioned to vertically and pushed by the fixed sleeve 20 of the metallic mold 13, 16 and then, the molten metal 44 is injected into the metallic mold by ascent of a plunger tip 34a. At the time of returning the sleeve 35 to vertical position, gas is blown from a nozzle 43, to remove sticking material and the molten metal on the upper end face of the sleeve 35. by blowing for an extreme short time, as the abutment on the fixed sleeve 20 and the temp. drop of the molten metal 44 is possibly prevented, the castings having good quality are produced at high efficiency.
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