The contractive rates on both sides in symmetric part were basically of the same for horizontal pouring while of extreme difference for vertical pouring.
采用水平卧式浇注，铸件对称的两边收缩率基本相同；而采用垂直立式浇注，铸件对称的上下收缩率相差较大。
The perfect hammer head can be obtained by designing technological equipment, using vertical pouring and string casting process in CO2-sodium silicate sand.
采用CO2硬化水玻璃砂无箱立浇串铸工艺，设计工装，可以获得优质健全的锤头产品。
The perfect hammer head can be obtained by designing technological equipment, using vertical pouring and string casting process in CO2-sodium silicate sand.
采用CO2硬化水玻璃砂无箱立浇串铸工艺，设计工装，可以获得优质健全的锤头产品。
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