我们试用普通铸铁型砂造型,用熔模型壳涂料在型腔部分均匀地涂0.4～0.6毫米,然后经200～300℃烘烤2～3小时,合箱浇注几公斤到几十公斤的碳素钢件或低合金钢件,能获得表面光洁、无化学粘砂的良好铸件,这对无砂型铸钢的单位来说,用它铸造单件、小批的小型铸钢件是适宜的。涂料 We try ordinary cast iron sand modeling, with the melting shell coating evenly coated in the cavity part of 0.4 to 0.6 mm, and then bake 200 ~ 300 ℃ 2 to 3 hours, together with a few boxes of pouring a few kilograms of carbon steel to tens of kilograms Piece or low-alloy steel parts, it is possible to obtain good castings with a smooth surface and no chemical sticky sand. It is suitable for the units without sand castings to cast single pieces and small batches of small castings. coating