Method study of SiC in refractory materials for torpedo by potassium fluosilicate titration

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• 作者：ZHANG JieTIAN XiumeiQI ShufangWANG Cuiyan
• 会议时间：2013-06-01
• 关键词：torpedo ; aluminum-carborundum brick ; carborundum ; potassium fluosilicate titration
• 作者单位：ZHANG Jie,QI Shufang(Technology Center of Ansteel Co.,Ltd.,Anshan 114009,Liaoning,China)TIAN Xiumei(Quality Inspection Center of Ansteel Co.,Ltd.,Anshan 114009,Liaoning,China)WANG Cuiyan(Department of Chemistry,Anshan Normal University,Anshan 114001,Liaoning,China)
• 母体文献：第五届宝钢学术年会论文集
• 会议名称：第五届宝钢学术年会
• 会议地点：上海
• 主办单位：中国金属学会
• 语种：chi

摘要

Carborundum of the sample is determined by potassium fluosilicate titration.The Al2O3-SiC-C brick sample was melted with KOH and KNO3 in the nickel-rucible.Through the experiment,chose the best melt condition.The melting temperature was 700℃ and melting time was 15 min.The method can avoid on fire and explosion during the melt of the sample.At the same time.it diminished the damage of the nickel-rucible and it was easy to soak out.A self-made filtration device will replaced of ordinary filtration bottles,filtration part of the glass was replaced by plastic,only needed 1/4 filter paper ( filter paper diameter approximately is 40 mm),easy to wash and neutralization,greatly reduced the detection time.Measuring results conformed with the results of the national standard method.Relative standard deviation of determination result was less than 5%.