Device for filling a gravity casting mold with a liquid melt for casting an engine block, comprises a section through which melt flows into mold, an inlet over which the melt flows to section, and a flow resistance unit arranged in inlet

摘要

The device comprises a section through which a melt flows into the mold, an inlet (8) over which the melt flows to the section, and a flow resistance unit such as a tapering insert (22) arranged in the inlet or the section. The flow resistance unit is dissolvable when it contacts with the melt during the filling process. The insert contains the same material as that of the melt. An outer region (28) of the insert is arranged in a groove (14) of the inlet or the section. The insert is arranged in depth of the inlet. The insert has different mass distribution in radial direction. The device comprises a section through which a melt flows into the mold, an inlet (8) over which the melt flows to the section, and a flow resistance unit such as a tapering insert (22) arranged in the inlet or the section. The flow resistance unit is dissolvable when it contacts with the melt during the filling process. The insert contains the same material as that of the melt. An outer region (28) of the insert is arranged in a groove (14) of the inlet or the section. The insert is arranged in depth of the inlet. The insert has different mass distribution in radial direction. A central cross-section of the insert is formed through a wall (30) having a constant thickness (1 mm), which is less than the thickness of the surrounding region. A casting filter is integrated in the insert. The insert is arranged in the section in such a way that the melt flow changes its direction. The insert protrudes from a side wall into the section.