摘要
经解剖中间罐水口堵塞样品,查清堵塞原因主要是高溶点的树枝状Al_2O_3,铁尖晶石夹杂粘附在水口壁上并聚集长大。经在钢包中喂入直径13.5mm CaSi芯线,喂速120～130m/min,1t钢喂入量0.26～0.86kg,使原有高熔点夹杂变为低熔点的复合氧化物,不再堵塞中间罐水口,夹杂球化,而且很细小。
The tundish nozzle clogging samples were taken and analyzed. The clogging causes are understood. Main cause is Al2O3 inclusion and hercynite inclusions stick on the nozzle wall and accumulated. By feeding ΦP13.5mm CaSi cored wire, the rate of feeding was 120- 130m / min or 0.26-0.86 kg /t. The high melting point inclusions were changed into low melting point complex oxides. There was no longer tundish nozzle clogging observed. The most part inclusions were modified into spherical inclusions and their size was small.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
1993年第5期485-490,共6页
Journal of University of Science and Technology Beijing
关键词
中间罐
水口
喂线
连续铸钢
continuous casting, tundish, nozzle / wire feeding
clogging
