摘要
采用正交实验方法 ,选择三种不同粒径的填料 ,系统研究了粒子预热温度、金属液浇注温度和充型压力对渗流铸造泡沫铝合金成型工艺的影响 ,并对试验结果作了理论分析。认为 ,合理选择粒子预热温度是生产泡沫金属铸件的前提 ,适当提高浇注温度是保证泡沫组织均匀良好的关键 ,保持适度的充型压力有利于提高材质通孔率和工艺稳定性。
The effects of preheating temperature of granules,pouring temperature of melt and forming pressure on the forming process of penetrating casting of foam Al- alloys around granules were systematically studied using orthogonal experiment method and choosing three kinds of the granules size and the experimental results were theoretically analysed.It is consid- ered that the reasonable selection of granules preheating temperature is a prerequisite to produce the foam metal castings,proper increase of pouring temperature is a key to achieve the homoge- neous foam construction and the moderate forming pressure can increase the product porosity and technological stability.
出处
《材料工程》
EI
CAS
CSCD
北大核心
1997年第9期41-46,44,共7页
Journal of Materials Engineering
