空心双层内腹板的熔模铸造工艺研究  

Investment Casting Process for Hollow Double Layer Endosternum

作　　者：刘建平[1] 韩大平[2] 丁书亮[2] 王铁军[2] 彭志江[2] 苗治全[3] 

机构地区：[1]驻中航工业沈阳黎明航空发动机(集团)有限责任公司军事代表室,辽宁沈阳110043 [2]中航工业沈阳黎明航空发动机(集团)有限责任公司,辽宁沈阳110043 [3]沈阳铸造研究所,辽宁沈阳110022

出　　处：《铸造》2012年第1期37-39,共3页Foundry

摘　　要：介绍了空心双层内腹板的熔模铸造基本工艺和主要工艺参数,针对研制过程中出现的主要铸造缺陷,如断芯、偏芯、缩孔、缩松等,提出了工艺改进措施。不但生产出了合格铸件,提高了产品的合格率,而且为同类产品的熔模铸造工艺提供了参考。The basic process and main processing parameters of investment casting tbr hollow double layer endosternums were presented in detail. Technical measures were put forward to remove the casting defects appeared in the procedure of research and development such as core break, core shift, shrinkage and porosity, etc. Finally, the defects were eliminated and the castings produced were qualified, which can be reference for production of similar castings.

关 键 词：熔模铸造 陶瓷型芯 缩孔 

分 类 号：TG249.5[机械工程—精密仪器及机械]