2219合金热顶铸造圆铸锭羽毛晶缺陷研究  

Study on Defect of Round Ingot Feather Crystal in 2219 Alloy Hot-pot Casting

作　　者：孙海波[1] 孔祥生[1] 殷云霞[1] 姜德俊[1] 洪宇 SUN Hai-bo;KONG Xiang-sheng;YIN Yun-xia;JIANG De-jun;HONG Yu

机构地区：[1]东北轻合金有限责任公司,黑龙江哈尔滨150060

出　　处：《有色设备》2021年第2期28-30,共3页Nonferrous Metallurgical Equipment

摘　　要：本文研究了2219合金热顶铸造Φ405 mm规格圆铸锭羽毛晶产生原因及解决措施。结果表明:采取控制2219合金Zr含量、增加配料时废料投入比、铸造时增加Al-5Ti-1B丝在线播种量、避免熔体过热及熔体停留时间过长和调整铸造工艺参数可解决2219合金热顶铸造Φ405 mm规格圆铸锭羽毛晶问题。The 2219 alloy hot-top castingΦ405 mm round ingot feather crystal causes and solutions were studied.The results show control Zr content of 2219 alloy and increase scrap input ratio,increasing Al-5 i-1 B wire online seeding rate during the casting,avoiding melt overheat and it to stay a long time and adjusting the casting prosess parameters can solve 2219 alloy hot-top castingΦ405 mm round ingot feather crystal’s problem.

关 键 词：2219合金 热顶铸造 羽毛晶 

分 类 号：TF125.22[冶金工程—粉末冶金]