半自磨机筒体衬板铸造工艺改进研究  

Research on the Improvement of the Casting Process of Semi-autogenous Mill Cylinder Liners

作　　者：周旭 鲁昱 李向明[1] 李祖来[1] 高炳臣 赵跃林 ZHOU Xu;LU Yu;LI Xiangming;LI Zulai;GAO Bingchen;ZHAO Yuelin(Faculty of Materials Science and Engineering,Kunming University of Science and Technology,Kunming 650093,China;Yunnan Kungang Wear Resistant Material Science Co.,Ltd,Yuxi 653400,China)

机构地区：[1]昆明理工大学材料科学与工程学院,云南昆明650093 [2]云南昆钢耐磨材料科技股份有限公司,云南玉溪653400

出　　处：《铸造技术》2024年第4期376-387,共12页Foundry Technology

基　　金：国家自然科学基金(51961018)。

摘　　要：半自磨机筒体衬板的抗冲击及耐摩擦磨损性能,一直受到各大选矿厂和磨机生产企业关注。而衬板的服役寿命,与其铸造质量密切相关。只有从其生产的源头即铸造环节严格把控质量,才能为其服役寿命提供保障。为了消除某V法铸造厂生产的大型半自磨机筒体衬板提升条内部的缩松、缩孔等缺陷,采用ProCAST软件对该厂衬板的原铸造工艺进行了数值模拟,据此分析其铸件内部产生缩孔、缩松缺陷的成因;之后使用独立开发的《铸造工艺智能设计(铸钢)》软件对衬板的铸造工艺进行了全新设计,经模拟、生产验证,新的铸造工艺有效消除了衬板铸件内部的缩松、缩孔缺陷,提高了铸件质量并将工艺出品率由65%提升至85%以上,经济效益显著。The impact resistance,friction resistance and wear resistance of semi-autogenous mill liners have long been a concern of major concentrators and mill manufacturers.The service life of the liner is closely related to its casting quality.Only by strictly controlling the quality from the source of its production,that is,the casting process,can its service life be guaranteed.To eliminate defects such as shrinkage hole and shrinkage porosity in the lining strips of large-scale semi-autogenous mill cylinders produced by a V-process foundry,ProCAST software was used to simulate the macroscopic casting process of the original foundry method,and the causes of shrinkage hole and shrinkage porosity defects were analysed.Then,the casting process of the lining plate was newly designed by using the independently developed“intelligent design of casting process(cast steel)”software.After simulation and production verification,the new casting process effectively eliminates the shrinkage hole and shrinkage porosity defects inside the lining plate,improving the casting quality and increasing the process yield from 65%to above 85%,with remarkable economic benefits.

关 键 词：磨机衬板 V法铸造 数值模拟 铸造工艺智能设计 缩松缩孔 

分 类 号：TG24[金属学及工艺—铸造]