Die-casting die
AssigneeMitsubishi Heavy Industries, Ltd.
InventorMasafumi Hamasaki
Life of this patent
Estimating the term…
Abstract
Provided is a die-casting die which is less likely to cause gas defects. A die-casting die in which a runner (1) is branched at a branch section (3), and cavities are connected to the respective downstream ends of the branched runner, wherein the runner (1) comprises a main runner (2) that is located upstream of the branch section (3) and a plurality of sub-runners (4) that are located downstream from the branch section (3), a volume section (5) having an opening (6) that opens toward the main runner (2) is formed at a portion of the branch section (3) that represents an extension of the direction of the main runner (2), and the width of the opening (6) is greater than the width of the main runner (2).
Claims4
A die-casting die, comprising:
- a runner branched at a branch section, cavities being connectable to respective downstream ends of the runner, the runner comprising
- a main runner is located upstream of the branch section,
- a plurality of sub-runners located downstream from the branch section, and
- a volume section having an opening that opens toward the main runner, the volume section being formed at a portion of the branch section that represents an extension direction of the main runner,
- wherein a width of the opening of the volume section is greater than a width of the main runner,
- wherein the volume section comprises a molten metal inlet portion that includes the opening, and a well portion that is connected to the molten metal inlet portion on an opposite side from the opening,
- wherein the well portion is spherical, and
- wherein a width of the molten metal inlet portion is narrower than a diameter of the well portion.
Dependencies are inferred from the claim text.