差压铸造在复杂薄壁铝合金铸件生产中的应用
Application of Counter-Pressure Casting in Thin Wall Complex Aluminum Alloy Casting
葛世超
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作者单位：中船重工第十二研究所
中文关键字：差压铸造；铝合金；致密性；充型能力
英文关键字：counter-pressure casting;aluminum alloy;densification;mold-filling capacity
中文摘要：通过对重力条件下生产的产品的缺陷分析，提出了在差压条件下对铸造工艺进行改进的措施。结果表明：采用差压工艺，该铸件的充型能力大幅增强；机械性能明显提高；针孔、疏松组织及氧化夹渣对铸件的不利影响得到减轻，铸件的致密性大幅提高。充分证明了差压工艺在薄壁复杂铝合金铸件生产中的优势。
英文摘要： By analyzing the defective casting in gravity, the improved measure of casting process in counter-pressure was proposed. The results indicate that mold-filling capacity and mechanical properties were obviously improved and the bad effects of pinhole, shrinkage microstructure and oxidizing slag in casting were relieved effectively by adapting counter-press process.The advantages of counter-pressure process in thin-wall complex aluminum alloy casting were terrified.