PROPERTIES OF STARCH BONDED CORES FOR IRON CASTINGS.

被引:0
|
作者
Miyazawa, Nobuo [1 ]
机构
[1] Kinki Univ, Higashiosaka, Jpn, Kinki Univ, Higashiosaka, Jpn
来源
Foundryman | 1986年 / 79卷 / Pt 8期
关键词
D O I
暂无
中图分类号
TG2 [铸造];
学科分类号
080201 ; 080503 ;
摘要
In the course of this experiment, it was found that starch migrates into the surface layer of the core when starch bonded sand high in water content is blown into the heated core box. It has been thus possible to manufacture starch shell cores by making use of the mechanism of starch migration. Sand may be removed from the central part of the core box by making use of the phenomenon that the strength of the surface layer is increased by migration of starch into the surface layer while the strength of the internal parts is lowered.
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页码:392 / 396
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