悬浮剂对覆膜砂醇基涂料工艺性能的影响  

Influence of Suspending Agent on the Technological Properties of Coated Sand Alcohol-Based Coatings

作　　者：王子瑜[1] WANG Zi-yu(Department of Materials Engineering,Bohai Shipbuilding Professional College,Huludao 125105,Liaoning,China)

机构地区：[1]渤海船舶职业学院材料工程系,辽宁葫芦岛125105

出　　处：《铸造》2023年第2期174-177,共4页Foundry

摘　　要：良好的悬浮剂能有效地保证涂料各组分的均一性,充分发挥涂料的作用,而且还有利于施涂,提高涂层和铸件的表面质量。通过悬浮剂种类和悬浮剂含量两个指标研究其对覆膜砂醇基涂料工艺性能的影响。结果表明:选取进口钠基膨润土做悬浮剂配制的涂料,与锂基膨润土、硅酸镁铝、ATT50、球粘土配制的涂料相比,具有更好的抗流淌性和流平性。随着悬浮剂含量不断增加,涂料的粘度、密度、流平性、悬浮性、涂层厚度及剪切稀释比有不同的变化。A good suspending agent can effectively ensure the uniformity of each component of the coating,give full play to the role of the coating,and also facilitate application and improve the surface quality of the coatings and castings.In this paper,the effects of different suspending agent types and suspending agent contents on the technological properties of coated sand alcohol-based coatings were studied.The results showed that the coatings prepared with imported sodium-based bentonite as the suspending agent had better anti-flow,leveling and lower cost than lithium-based bentonite,magnesium aluminum silicate,ATT50 and ball clay coatings.With the increasing content of the suspending agent,the viscosity,density,leveling,suspension,coating thickness and shear dilution ratio of the coating had different changes.

关 键 词：覆膜砂芯 工艺性能 悬浮剂 

分 类 号：TG221[金属学及工艺—铸造]