摘要
采用SEM,EPA及微区X-光衍射等先进检测手段,对铬矿砂与金属液界面相互作用的显微结构、烧结行为等进行了分析,表明铬矿砂高温下发生了以固相烧结为主的高温烧结,形成的Cr,Fe,Mg,A1等组成的尖晶石表面致密烧结层是其抗金属渗透的原因所在,并为大型铸钢件面砂国产化提供了理论依据。
In this paper, by means of some analysis methods, such as SEM, EPA, x- ray diffraction microscope at high temperature etc.,the interface reaction between molten steel and chromite sand, the microstructure and sintering process were studied in details. Thus the mechanism of resistance of chromite sand to metal penetration was revealed that sintering layer which was formed at high temperature consisting of sprine was the main reason of resistance to penetration.
出处
《沈阳工业大学学报》
EI
CAS
1993年第1期14-20,共7页
Journal of Shenyang University of Technology
关键词
渗透过程
粘砂
铬矿砂
铸钢件
penetration process
sand burning
sintering
interfaces
action
