大型复杂不锈钢壳体熔模铸造工艺设计及优化  

Design and Optimization of Investment Casting Process for Large Complex Stainless Steel Shell

作　　者：潘年锋 PAN Nianfeng(Guizhou Anji Aviation Precision Casting Co.,Ltd.,Anshun 561000,Guizhou China)

机构地区：[1]贵州安吉航空精密铸造有限责任公司,贵州安顺561000

出　　处：《铸造工程》2023年第S02期27-31,共5页Foundry Engineering

摘　　要：针对壳体铸件结构和内部质量要求,分析出铸造工艺设计的难点。初始铸造工艺通过浇注系统、补缩冒口、工艺补贴设计,及型壳制备、熔炼与浇注过程控制等措施实施;试制结果显示存在有浇不足现象,根据试验结果对工艺进行优化,按优化后的工艺方案浇注出来的铸件经X光、荧光检查,未发现有超出验收标准要求的疏松、缩孔缺陷,证明优化后的工艺方案合理可行。According to the structure and internal quality requirements of shell castings,the difficulties of casting process design were analyzed.The initial casting process is implemented by gating system,feeding riser,process subsidy design,shell preparation,smelting and pouring process control,etc.According to the test results,the process was optimized.After X-ray and fluorescence inspection,no loose or shrinkage defects were found in the castings cast according to the optimized process plan,which exceeded the requirements of the acceptance standard,proving that the optimized process plan was reasonable and feasible.

关 键 词：热节 散热 工艺补贴 温度梯度 

分 类 号：TG249.5[机械工程—精密仪器及机械]