【作者】 张保敬； 张廷安； 牛丽萍； 李志强； 郑超； 张东亮；

【Author】 Zhang Baojing;Zhang Tingan;Niu Liping;Li Zhiqiang;Zheng Chao;Zhang Dongliang;School of Metallurgy, Northeastern University;

【机构】 东北大学冶金学院；

【摘要】 为了使铜渣得到最大价值化的利用,铜渣彻底还原冶炼含铜抗菌不锈钢的新工艺被提出。本文在还原得到的含铜铁水中加入铬铁后,进行了CO₂脱碳的工艺研究,对CO₂与铁水中主要元素的反应进行热力学计算,并从反应温度、通气时间、CO₂流量及CO₂分压四个因素来考察所得金属中铜铬碳的含量变化规律。结果表明,反应温度1650℃,反应时间60min,CO₂流量590mL/min,Ar占比20%时,得到的金属成分最为符合马氏体含铜抗菌不锈钢的要求。更多还原

【Abstract】 In order to make copper slag with maximum value, a new technology that copper slag reduced to smelt copper-containing antimicrobial stainless steel is proposed. In this paper, CO₂ decarburization was studied after ferrochromium being added in copper-containing molten iron reduced from copper slag. Thermodynamic of the reactions between CO₂ and the main elements in molten iron were calculated. Four factors that reaction temperature, ventilation time, CO₂ flow rate and CO₂ partial pressure were studied to investigate changing law of Cu, C and Cr in iron. The results show that reaction temperature 1650℃, reaction time 60 min, CO₂ flow rate 590 mL/min and Ar proportion 20%, composition of metal after decarburization are suitable conditions for martensite copper-containing antimicrobial stainless steel.更多还原