实验研究了铸造319铝合金在余热热处理工艺下的微观组织、力学性能及旧砂再生处理。

The effects of the remained heat treatment technique on the microstructure, mechanical properties of 319 Aluminum alloy and used sand reclamation were investigated.

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本文叙述了锰砂表面改性(以下简称旧锰砂)处理含酚饮用水的实验研究，陈酚率可达99%。

This paper mainly reports the experimental study that containing phenol compound in edible water is got rid of with manganese sand surface change. The rate of removing the phenol is 99%.

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