chromite sand 中文意思是什麼
chromite sand
解釋
鉻砂-
The pouring tests of the ladder foam sample were made in silica sand, chromite sand and zircon sand the results show that zircon sand and chromite sand have the better chilling effect, and the structure of the aluminum alloy is finer, the hardness and strength has large improvement, subsequently the investigation provides the reference for manufacturing aluminum alloy thin thickness mold with excellent quality
結果表明，鋯英砂和鉻鐵礦砂具有較好的激冷效果，得到的鋁合金鑄件組織細小，強度、硬度有較大的提高，為薄壁隨型、質量優異的鋁合金消失模模具製造提供了技術依據。
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