超声波处理高温钢液的工具头材质研究  

Study of probe material for ultrasonic treatment of molten steel

作　　者：李杰[1] 陈伟庆[1] 何北星[2] 刘青[1] 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083 [2]中国科学院声学研究所,北京100080

出　　处：《北京科技大学学报》2007年第12期1246-1249,共4页Journal of University of Science and Technology Beijing

基　　金：国家自然科学基金;钢铁研究联合基金资助项目(No.0474090)

摘　　要：研究了刚玉棒、钨合金棒、外涂ZrO2金属钼棒和Mo-Al2O3-ZrO2金属陶瓷管在钢液中的熔蚀和抗超声波振动的情况.结果表明:刚玉棒可以承受高温钢液的熔蚀,但在超声振动作用下产生断裂;钨合金棒可以承受强烈的超声振动,但在处理钢液时较短时间内发生了端部熔融;外涂氧化锆的金属钼棒在短时间内(1～2min)可以承受高温钢液的熔蚀,但不能承受强烈的超声振动;金属陶瓷管既可以承受较强的超声振动(250W),又能够抵抗高温钢液的熔蚀,可以作为超声波处理钢液的工具头.The molten steel corrosion and ultrasonic vibration resistance of a corundum stick, a tungsten alloy stick, a metal Mo stick coated with ZrO2 outside, and a Mo-Al2O3-ZrO2 ceramic metal tube were investigated for ultrasonic treatment of molten steel. The results show that the corundum stick can endure high-temperature molten steel corrosion, but ultrasonic vibration caused it fracture. The tungsten alloy stick could endure huge ultrasonic vibration but end fusion will take place within a short time during the ultrasonic treatment process of molten steel. The metal Mo stick coated with ZrO2 outside had corrosion resistance ability in molten steel during a short time （1-2 min）, however, low ability to withstand strong ultrasonic vibration. The ceramic metal tube had the ability to endure not only strong ultrasonic vibration （250 W） but also high-temperature molten steel corrosion, so it could be served as the probe for ultrasonic treatment of molten corrosion.

关 键 词：金属凝固 钢液 工具头 超声振动 熔蚀 

分 类 号：TF769.9[冶金工程—钢铁冶金]