CAJ | 학술논문

介绍了将复合铸造技术运用到航空炸弹中的复杂工件，特别是大型薄壁铝合金舱体的优势。分析了石膏型熔模铸造结合真空增压技术的特点，同时，采用该技术研制大型复杂薄壁铝合金铸件，通过合理设计铸件浇注系统，选择铸型工艺，优化浇注工艺参数和严格控制固溶处理温度与校形时机，提高了铝合金的充型能力，改善了铸件的致密度和针孔度，解决了大型薄壁铸件充型及内部质量难以控制的难题。
개소료장복합주조기술운용도항공작탄중적복잡공건，특별시대형박벽려합금창체적우세。분석료석고형용모주조결합진공증압기술적특점，동시，채용해기술연제대형복잡박벽려합금주건，통과합리설계주건요주계통，선택주형공예，우화요주공예삼수화엄격공제고용처리온도여교형시궤，제고료려합금적충형능력，개선료주건적치밀도화침공도，해결료대형박벽주건충형급내부질량난이공제적난제。
The advantages of investment casting applied to complicated workpieces,especially a large-scale thin-walled aluminum alloy cases,of aerial bombs were discussed.The characteristics of plaster mold investment casting combined with vacuum pressurization technology were analyzed.Meanwhile,by reasonably designing a casting pouring system,selecting pouring processes,optimizing pouring process parameters and precisely controlling solid solution treatment temperature and correction time,the investment casting technology improved the filling capacity,compactness and porosity of the large-scale thin-walled complicated aluminum alloy casting.The problems of control difficulty in filling and internal quality of the large-scale thin-walled casting were solved.