摘要
针对大型航空铝合金铸件的结构特点和性能要求,在分析采用砂型重力铸造该类铸件时各种铸造缺陷产生原因的基础上,研究采用低压铸造工艺的可行性,利用低压铸造工艺的原理和优点,结合铸造模拟软件解决大型航空铝合金铸件的成型质量问题,通过铸件结构分析及其铸造原理分析,进行低压铸造铸型的设计,利用铸造模拟软件并结合工艺试验,确定铸件低压铸造生产工艺参数,解决了铝合金铸件在铸造过程中的气孔、缩松、夹渣等缺陷问题。
According to the structural characteristics and performance requirements of large-scale aviation aluminum alloy castings,the causes of various casting defects in sand mold gravity casting were analyzed,and the feasibility,principle and advantages of low-pressure casting process were discussed.Through the analysis of casting structure and forming principle,the design of low-pressure casting mold was carried out.The results show that the casting simulation software is used to optimize the casting process,and the process parameters of the low-pressure casting process of large aviation aluminum alloy castings are determined in combination with the process tests.The problems of porosity,shrinkage and slag inclusion are solved to ensure the quality of casting.
作者
刘静
王小博
LIU Jing;WANG Xiaobo(Plant 11,Aviation Industry Qingan Group Co.,Ltd.,Xi'an 710077,China;Trw Dongfang(Xi'An)Airbag Inflator Co.,Ltd.,Xi'an 710072,China)
出处
《铸造技术》
CAS
2020年第7期667-671,共5页
Foundry Technology
关键词
铝硅合金
低压浇注
工艺方案
Procast模拟
aluminum silicon alloy
low pressure casting
the processing plan
procast simulation
