我厂炼钢车间有一台10t电弧炉,后面配有75mm开口锭浇注系统。 今年初生产20MnSi钢,开始时依然采用白渣工艺,只是对炉前操作强调了取样前对钢水的搅拌。但在实践过程中发现,在第一批合金加入以后,尽管工人认真搅拌,但取样后的分析结果总是大大高于理论计算的数值,当根据分析结果来补加合金作调整时,就容易造成 I plant a steel plant 10t electric arc furnace, followed by a 75mm open ingot casting system. Early this year, 20MnSi steel production, the beginning is still using white slag technology, but the operation of the stove before the emphasis on sampling the molten steel. However, during practice, it was found that after the first batch of alloy was added, the sample analysis result was always much higher than the theoretical calculation value despite the careful stirring of workers. When the additional alloy was adjusted according to the analysis result, it was easy Cause