3104铝合金低液位铸造扁锭质量研究  

Study on Slab Quality of 3104 Aluminum Alloy by Low Metal Head Casting

作　　者：刘金炎[1] 长海博文 郭世杰[1] 薛冠霞[1] 郑文胜[1] 

机构地区：[1]苏州有色金属研究院有限公司,江苏苏州215026

出　　处：《有色金属加工》2014年第3期22-25,48,共5页Nonferrous Metals Processing

摘　　要：文章研究了低液位铸造过程中液位高度、石墨内衬温度和冷却水流量对440＆#215;1320mm规格3104铝合金铸锭质量的影响。结果表明：控制液位高度使铸模单独冷却距离在20～25mm，确保石墨内衬与结晶器壁贴合严密使石墨内衬温度低于200℃，优化冷却水量使铸锭启铸阶段第一主应力数值从165MPa减小至102MPa，能够获得高表面质量无裂纹铸锭。Using 3104 aluminum al oy slab in the size of 440mm ＆#215;1320mm, the paper studied the influences of liquid level, graphite liner temperature and cooling water flow on slab quality in LHC;It concluded that slab with high surface quality can be available by：keeping the distance for die independent cooling from 20mm to 25mm via level control, keeping graphite liner temperature below 200℃ via jointing graphite liner with mould wal closely, decreasing the first principal stress from 165Mpa to102Mpa via optimizing cooling water flow at the start of casting.

关 键 词：半连续铸造 低液位铸造 3104铝合金 裂纹 石墨内衬 low metal head CASTING ( LHC) 

分 类 号：TG292[金属学及工艺—铸造]