| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique where the deformation of a product part in a molding caused by a solidification delay in a cast plan section is suppressed, so as to improve the product precision of the molding, and further, to provide a technique where slag and initial solidified pieces intruded into a molten metal injected into a cavity are reduced, so as to improve the production precision of a molding. SOLUTION: In the mold 10 comprising a fixed mold 11 and a movable mold 12, the fixed mold 11 includes: a first main mold 30; a second main mold 31 freely movable forward and backward to the first main mold 30 in the mold opening/closing direction; and an insert mold 32 fixed to the second main mold 31, so as to form a cavity 71. Then, the doubling plane between the first main mold 30 and the second main mold 31 is provided with a runner 72, and the second main mold 31 is provided with a sprue 73 allowing the runner 72 to be communicated with the cavity 71. COPYRIGHT: (C)2009,JPO&INPIT
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