摘要
本文主要介绍了高强度铸造铝合金(ZL205A)大型复杂优质挂架梁铸件的研制情况。由于该铸件结构复杂,其轮廓尺寸既长又扁,非常易于变形,所以保证挂架铸件冶金质量和尺寸相对稳定难度较大。本文侧重论述了铸造工艺设计、模具特殊设计和激冷材料设置,以及ZL205A 熔炼和热处理等先进工艺的应用,使挂架铸件的机械性能和切取性能均达到了设计和使用要求,铸件产品的合格率达到了85%左右。
In this paper some bulk complexly shaped castings of high strength alumini- um alloy ZL205A for external beam of attack bomber are investigated.Due to th- eir structure complexity,long and flat configuration,and deformability,the meta- llurgical quality and relative stability of demension are the problems to be reso- lved.The casting process,design of mould,installation of chiller,melting and heat-treatment are also sumerized.Therefore the mechanical properties of casting and cutting specimen can meet the design and application requirements and accep- tance percentage of qualitified castings reaches about 85%.
出处
《航空材料学报》
EI
CAS
CSCD
1990年第1期15-25,共11页
Journal of Aeronautical Materials
