公布 中文名称：胀砂 英文名称：swell 定义：铸件内外表面局部胀大，重量增加。 应用学科： 机械工程（一级学科）； 铸造（二级学科）；铸件质量与缺陷（二级学科） 点击加载更多 正在加载
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厚实板类铸件按传统工艺生产，容易产生缩孔、缩凹、缩松、夹砂、胀包等铸造缺陷。
The shrinkage cavity, depression, shrinkage porosity, scab and swell defects often took place with the heavy plate castings produced by adopting traditional foundry method.
结果表明，颗粒破碎程度与对其输入的塑性功密切相关；颗粒破碎的发生使钙质砂剪胀性减小，体积收缩应变增大，峰值强度降低。
The results indicate that particle breakage depends on the sample′s plastic work received during testing, and reduces the volume expansion and peak strength of the sands.
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