摘要
实际生产中低倍检查时,发现7A04合金挤压材中有直径0.1-0.4mm的夹渣缺陷。本文通过电镜扫描(SEM)和能谱分析(EDS)确定了夹渣缺陷的形貌和成分,分析了夹渣的组织特征和形成机理。经过试验验证,确定出废料使用量、金属添加剂质量及加入温度、精炼时间、过滤效果等是影响夹渣缺陷的主要因素。
φ0. i -0.4mm slag inclusion was found in extrusion via macroscopic test in production. The paper presents slag inclusion profile and composition by scanning electron microscope (SEM) and energy dispersive spectrometer (EDS) ; it analyzes slag inclusion microstructure and formation mechanism. Slag inclusion was confirmed to be formed by key factors e. g. waste usage, additive quality, adding temperature, refine time and filter effects.
出处
《有色金属加工》
CAS
2013年第5期22-27,共6页
Nonferrous Metals Processing
关键词
炉子质量
炉料质量
添加剂
熔炼过程
精炼
过滤
mass of furnace
mass of raw material
additive
smelting process
refine
filter