金属型低压铸造铝合金裂纹分析及改进  

Analysis and Quality Optimization of Casting Crack on the Low-Pressure Die Castings

作　　者：陈红圣 王仕明 梁超 王沛培 查明晖 徐贵宝 CHEN Hong-sheng;WANG Shi-ming;LIANG Chao;WANG Pei-pei;ZHA Ming-hui;XU Gui-bao(CRRC Qishuyan Locomotive&Rolling Stock Technology Research Institute,Changzhou 213011,Jiangsu,China)

机构地区：[1]中车戚墅堰机车车辆工艺研究所有限公司,江苏常州213011

出　　处：《铸造》2024年第4期556-559,共4页Foundry

摘　　要：从宏观特征、微观形貌、成分性能及金相组织等方面,分析了金属型低压铸造铸铝件的铸造裂纹特征。对裂纹进行了原因分析,并通过制定针对性改进措施,从源头彻底解决了铸造裂纹,大大提高了产品的铸造成品率。From the aspects of macroscopic characteristics,microscopic morphology,physical and chemical properties,and metallographic microstructure,the features of crack on the low-pressure die castings were analyzed.Based on the cause analysis of the crack,by developing targeted measures,the crack defects have been completely resolved.The yield of the castings has been greatly improved.

关 键 词：铸造裂纹 铝合金 低压铸造 金属型 

分 类 号：TG249.3[金属学及工艺—铸造]