针对呋喃树脂砂生产球墨铸铁件表面渗硫、产生片状等非球状组织的现象,选用镁橄榄石粉作为防渗硫剂,用助剂A和助剂B作为复合烧结助剂等组分配制球墨铸铁件用呋喃树脂砂醇基涂料。试验结果表明:研制的涂料具有优良的防渗硫效果,能够有效地避免或减轻非球状组织的产生。同时,浇注后该涂料层能从铸件表面自行剥离、脱落,防止了铸件的粘砂并减轻了清理量。 Aiming at the phenomena of surface infiltration of furan resin sand on the surface of ductile iron castings and producing non-spherical structures such as flake, forsterite powder is selected as anti-sulfurizing agent, and aids A and B are used as a composite sintering aid to prepare nodular Cast iron parts furan resin sand alcohol-based paint. The test results show that: the developed coating has excellent anti-sulfur effect, can effectively avoid or reduce the non-spherical tissue. At the same time, after pouring, the coating layer can peel and peel off from the casting surface automatically, prevent the sand of the casting from sticking and reduce the cleaning amount.