摘要
以中温煤沥青和蒽油为混合黏结剂,电煅煤为骨料,制备了铝用冷捣糊。采用万能试验机、电阻率仪和扫描电镜-能谱仪等仪器检测了制备糊料的性能。结果表明:混合黏结剂占糊料的15%时,制备的冷捣糊综合性能最好,捣固温度为20±5℃,合适的钠渗透深度(7.8 mm),抗压强度(24.58 MPa)达到我国通常标准,由于无石墨质原料,电阻率(148.3μΩ·m)高于我国通常标准。
Cold ramming paste for aluminum electrolysis cells was prepared with electro -calcined anthracite （ECA） as aggregates and mid -temperature coal tar pitchas and anthracene oil as mixed binder. The prepared pastes were characterized by Universal Testing Machine, Resistivity Instrument, Scanning Electron Microscopy （SEM） - Energy Dispersive Spectroscopy （ EDS）, etc. The results show that the prepared cold ramming paste has the best comprehensive properties when mixed binder content is 15 % （mass % ） and it has low ramming temperature （20 ＋ 5 ℃ ） and appropriate sodium penetration （7.8 mm）. What＇ s more, its compressive strength reaches China＇ s usual standards, however, its electrical resistivity （ 148.3 μΩ·m） is higher than China＇ s usual standards without graphite.
出处
《轻金属》
CSCD
北大核心
2014年第3期35-39,共5页
Light Metals
基金
国家自然科学基金(51204084)
云南省科技创新强省计划(2012AA007)
关键词
冷捣糊
铝电解槽
钠渗透
中温煤沥青
cold ramming paste
aluminum electrolysis cell
sodium penetration
mid - temperature coal tar pitch
