CAJ | 학술논문

针对某航空发动机分油套筒铸件(下述简称铸件)存在冶金质量缺陷的问题，结合铸件结构和镁合金性能特点，分析了其质量缺陷的成因。立足于原有浇注系统，制定了增加浇道过滤网、合理搭配激冷冷铁、采用倾斜浇注及增加冒口尺寸等改进措施，对浇注系统和工艺资料进行了完善，并进行了试验验证。结果表明，铸件内部质量缺陷已消除，产品合格率大幅提高。
침대모항공발동궤분유투통주건(하술간칭주건)존재야금질량결함적문제，결합주건결구화미합금성능특점，분석료기질량결함적성인。립족우원유요주계통，제정료증가요도과려망、합리탑배격랭랭철、채용경사요주급증가모구척촌등개진조시，대요주계통화공예자료진행료완선，병진행료시험험증。결과표명，주건내부질량결함이소제，산품합격솔대폭제고。
In order to resolve the problem of metallurgical quality defects which are existed in the engine oil distributing sleeve casting,combined casting structure with performance features of magnesium alloy,analyzed the reasons of quality de-fects.The paper made a plan of measures including adding sprue filter,collocating reasonably with induced cold iron colora-tion,adopting sloping casting and establishing enlarged feed size based on the original casting system,casting system and process files has been completed and trial manufacturing validation has been organized.The results showed that quality de-fects of casting had been removed and products percent of pass had been increased largely.