Based on the experience with more than 10 years running shell mould casting line and with the application of various resin coated sands , some technical problems of resin coated sands for shell mould castings were discussed 摘要根據(jù)殼型生產(chǎn)線十幾年運(yùn)行和各類覆膜砂應(yīng)用的經(jīng)驗(yàn),對(duì)殼型鑄造用覆膜砂的一些技術(shù)問題進(jìn)行探討。