Method study of SiC in refractory materials for torpedo by potassium fluosilicate titration
(0) 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%.
torpedo aluminum-carborundum brick carborundum potassium fluosilicate titration
ZHANG Jie TIAN Xiumei QI Shufang WANG Cuiyan
Technology Center of Ansteel Co.,Ltd.,Anshan 114009,Liaoning,China Quality Inspection Center of Ansteel Co.,Ltd.,Anshan 114009,Liaoning,China Department of Chemistry,Anshan Normal University,Anshan 114001,Liaoning,China
国内会议
上海
英文
1-4
2013-06-01（万方平台首次上网日期，不代表论文的发表时间）