摘要
笔者叙述了铸造铝硅类合金铸件反复产生的针孔(气孔)、氧化夹渣、冷隔、机械性能不合格、缩松(疏松、缩孔)、热裂、表面粗糙等缺陷的原因以及预防措施。认为提高液态合金的纯净度(减少合金中的有害杂质)和合理有效的铸造工艺是消除铝硅类合金铸件缺陷的主要途径。
The causes and protective measures of defects such as pinhole （ pores ）, oxidation sludge, cold shut, unqualified mechanical performance, porosity（ pinholing and shrink）, heat checking, roughness surface and so on are discribed, which appeared frequently in AlSi alloy castings. The author considers that it is the most effective way to avoid those defects with the aid of improving the purity of liquid alloy（ cleansing the alloy of nocuousness dirt） and using rational and effective casting procedure.
出处
《机械研究与应用》
2007年第6期58-60,共3页
Mechanical Research & Application
关键词
铝硅合金
铸件缺陷
预防措施
AlSi alloy
casting defects
protective measure
