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本文分析了春夏季溶模铸件表面粗糙度低的原因,其一是涂料由于Na~+浓度增加而屈服值增高,其二是粉液比增大。
This paper analyzes the reasons for the low surface roughness of the mold-castings in spring and summer. The first is the increase of the yield value of coatings due to the increase of Na ~ + concentration and the increase of the powder-liquid ratio.