醇基白刚玉/锆英粉复合涂料高温性能的研究  

Study on High Temperature Performance of Alcohol-based White Corundum/Zirconium Powder Composite Coating

作　　者：张林 周百能 吴协正[2] 苟鹏飞 肖毅 ZHANG Lin;ZHOU Baineng;WU Xiezheng;GOU Pengfei;XIAO Yi(Technical&quality Department,Sichuan Dongshu New Materials Co.,Ltd.,Deyang 618000,China;Casting and Forging Division,Dongfang Turbine Co.,Ltd.,Deyang 618000,China)

机构地区：[1]四川东树新材料有限公司技术质量部,四川德阳618000 [2]东方汽轮机有限公司铸锻事业部,四川德阳618000

出　　处：《铸造技术》2020年第12期1134-1138,共5页Foundry Technology

摘　　要：在铸钢件特别是大型铸钢件的生产中,锆英粉、白刚玉均表现出优良的防粘砂性能,但在某些方面无法获得较为满意的使用效果。研究了不同颗粒尺寸的锆英粉及白刚玉复配涂料在大型铸钢件上的应用。结果表明,325目锆英粉与200目白刚玉粉比例在20∶80时,烧结抗压强度最大,为0.931 MPa;该配比下颗粒之间烧结明显,较为紧实,空隙较少;选用该配比的复合骨料生产的涂料波美度适中,悬浮性好,涂层强度高,发气量低,高温抗爆裂性能好。现场应用表明,铸件与涂层易剥离,铸件表面良好。In the production of large steel castings,both zircon powder and white corundum had excellent anti-sand performance,but in some aspects they cannot get satisfactory results.The application of different particles of zircon powder and white corundum coating on large steel castings was studied.The results show that when the ratio of 325 mesh zirconium powder to 200 mesh white corundum is 20∶80,the sintering compressive strength is the highest,0.931 MPa.Under this ratio,the sintering between particles is obvious,more compact and less void.The coating produced by the compound aggregate of this ratio has moderate bauxite,good suspension,high coating strength,low air capacity and high temperature blowout resistance.The field application shows that the castings and coatings are easy to peel off and the surface of castings is good.

关 键 词：锆英粉 白刚玉 高温性能 烧结强度 

分 类 号：TG221[金属学及工艺—铸造]