摘要
实验研究得出C12A7炉渣（其组成为：w（SiO2）=6％，w（Al2O3）=46％，w（CaO）=48％）与合金钢液（其化学成分类似42CrMo钢）反应90min后，钢中w（Al2）=（80-100）×10^-6，与之平衡的钢中w（T．O）=（6～13）×10^-6,生成的夹杂物大都是尺寸很小的低熔点球状钙镁铝硅酸盐类夹杂。从热力学的角度得出了当C12A7炉渣与合金钢液达到平衡时钢中的铝含量以及平衡条件下钢中铝含量较低时也能将钢中氧含量控制在很低范围的原因。
Research shows that after 90 min reaction of the alloy structural molten steel （chemical compositions of the steel similar to 42 CrMo） with C12A7 slag which is composed of w（SiO2）=6 %,w（Al2O3）=46 %,w（CaO）=48 % w（SiO2）=6 %,w（A1203） =46%,w（CaO） = 48 % , the dissolved Al content in steel is w（Al） = （80-100） × 10^-6 in equilibrium with w（T. O） = （6-13） × 10^-6 and most of the resulting inclusions are low melting point, globular and very fine calcium-magnesium-aluminium silicate inclusions in molten steel.. By thermodynamic calculations, the content of Al under equilibrium between C12 A7 slag and alloy structural molten steel has been achieved in this paper. This paper also explains the reason why the low Al content can reduce the content of total O to a very low point under equilibrium in steel.
出处
《炼钢》
CAS
北大核心
2008年第3期33-36,62,共5页
Steelmaking
基金
"973"国家重大基础研究资助项目(2004CB619106)
