铬砂制作的砂模可让铸件有较快的冷却速率，但也产生较多的微孔隙。
The cooling rate is faster in chromite sand mold, but also causes more porosity in castings.
详细分析了不锈钢熔模铸件夹砂（起皮）产生的原因，并提出了防止不锈钢铸件夹砂（起皮）的一系列措施。
The text detaily analyzes the cause of scab of stainless steel steel melt wax casting and proposes some measures to avoid it.
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