Device for mounting a core on a sand mold for producing a cast part, comprises a dowel that is equipped with a cavity having an interior thread and is equipped for molding in the sand mold, and a bolt having a molding section

摘要

The device comprises a dowel (11) that is equipped with a cavity (13) having an interior thread (14) and is equipped for molding in a sand mold (1, 2), and a bolt that has a molding section (22) equipped for molding in the core and a connection section equipped for interference with the dowel through introduction into the cavity. The connection section comprises flexible ribs that are arranged on a bolt longitudinal body and extend itself radial of the flexible ribs. The bolt longitudinal body and the ribs are dimensioned. The device comprises a dowel (11) that is equipped with a cavity (13) having an interior thread (14) and is equipped for molding in a sand mold (1, 2), and a bolt that has a molding section (22) equipped for molding in the core and a connection section equipped for interference with the dowel through introduction into the cavity. The connection section comprises flexible ribs that are arranged on a bolt longitudinal body and extend itself radial of the flexible ribs. The bolt longitudinal body and the ribs are dimensioned so that the ribs clip in the interior thread during introducing the connection section into the cavity. The dowel has a mushroom-shaped head and strengthening rib at an external area. The molding section of the bolt comprises a stop plate that is arranged on the bolt longitudinal head. Strengthening ribs are arranged on an area of the stop plate and radially extend itself from the bolt longitudinal body. The device is produced from polypropylene.