If a hollow casting is to be made the pattern will include extension pieces so that Spaces to accept the sand core are molded into the sand. These additional Spaces in the mold are termed core prints.
如果铸造空心铸件时模型上包含伸长杆便于在砂中放置砂芯的空间称为型芯座。
The casting technique with top gating system, outer shaped iron chill, compound casting mold and core assembly molding was used for producing aluminum impeller on a large scale successfully.
详细介绍了采取顶注式浇注系统、成形外冷铁、复合铸型、组芯造型的铸造工艺，成功地生产出批量铝叶轮。
Although space of slider depth in aluminum alloy die casting mold are larger than the minimum values proposed by several handbooks, sometimes they are too small for pulling core.
尽管铝合金压铸模的滑块宽度间隙大于一些手册推荐的最小间隙，抽芯卡滞仍然时有发生。
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