铸造生产中选用的泥芯黏结剂,必须容易供应,成本低廉,而且具有良好的工艺性。如像:黏结剂能在配砂过程中迅速均匀地分布在造型材料的表面上;使芯砂具有应有的传动性,不致提高芯盒黏砂;烘后的砂芯具有必要的机械强度和表面硬度;烘干后的吸湿性应最小;浇铸时逐渐地发放出气体;良 Mud core binder used in foundry production must be easy to supply with low cost and good processability. For example, the binder can be rapidly and evenly distributed on the surface of the modeling material during the process of distributing sand, so that the core sand has the proper transmission and can not improve the core box of sand. The baked core has the necessary mechanical strength and Surface hardness; Moisture after drying should be minimal; Casting gradually release gas; Good