马氏体气阀钢夹杂物分析及控制  

Analysis and Control of Inclusions in Martensitic Steel for Valves

作　　者：张敏[1] 谢鑫[1] 曾建华[1] 吴国荣[1] ZHANG Min;XIE Xin;ZENG Jianhua;WU Guorong(State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Pangang Group Institute Co., Ltd.,Panzhihua 617000, China)

机构地区：[1]攀钢集团研究院有限公司钒钛资源综合利用国家重点实验室

出　　处：《铸造技术》2019年第10期1060-1063,共4页Foundry Technology

摘　　要：针对国内某特钢厂生产的马氏体气阀钢轧材夹杂物评级合格率偏低的问题,通过对轧材夹杂物的系统分析并结合现有钢包渣组分,制定了有利于吸收气阀钢夹杂物的钢包渣最佳组分。该技术的应用,有效提高了该厂马氏体气阀钢轧材夹杂物评级合格率,稳定了产品质量。该技术应用后气阀钢轧材夹杂物合格率由78%左右提高到97%以上。Aiming at the low qualified rate of inclusion rating of martensitic valve steel rolled by a special steel plant in China, through the systematic analysis of rolled inclusions and the combination of existing ladle slag composition, the optimal composition of ladle slag which is beneficial to absorb the air valve steel inclusions was established. The application of this technology can effectively improve the inclusion rating rate and stabilize the product quality. After the application of this technology, the qualified rate of inclusions in the steel rolled by air valve increased from about 78% to more than 97%.

关 键 词：马氏体气阀钢 夹杂物 钢包渣 轧材评级 

分 类 号：TG142[一般工业技术—材料科学与工程]