| 摘要 |
PCT No. PCT/DK90/00079 Sec. 371 Date Sep. 14, 1992 Sec. 102(e) Date Sep. 14, 1992 PCT Filed Mar. 20, 1990 PCT Pub. No. WO91/14525 PCT Pub. Date Oct. 3, 1991.In producing casting molds or mold parts by compacting mold sand in a molding chamber between two pattern plates, the volume of the molding chamber is measured and/or computed, such as by using sensors and a timer/controller capable of computing, before and after the compacting step. The values obtained are used to calculate a compaction ratio which is compared with a desired compaction ratio as a basis for making adjustments to the starting conditions, before the next mold or mold part is produced. In this manner it is possible to achieve a continuous correction of the compacting ratio to form correctly sized molds or mold parts in a series.
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