感应炉熔炼与双联熔炼的灰铸铁力学性能的比较

摘要

运用数理统计的方法,统计分析了大量使用感应炉熔炼与双联熔炼灰铸铁的单铸试棒的力学性能数据,通过比较发现:尽管铸件和材料牌号相同,化学成分、孕育剂及其加入量基本相同,原材料的规格、质量标准和产地基本相同,但双联熔炼灰铸铁与感应炉熔炼灰铸铁相比,其单铸试棒的抗拉强度高约26.5 MPa,硬度高HBW6,冶金质量也好.%Using method of mathematical statistics, the data of separately cast test bar mechanical properties of gray iron by use of induction furnace and duplex melting were statistically analyzed. The results show that with basically the same conditions such as casting, alloy grade, the chemical composition, the inoculant addition, the specifications, quality standards and origin of the raw materials, the duplex melting gray iron separately cast test bars have the tensile strength 26.5 MPa and hardness HBW 6 higher than that of induction furnace smelting gray iron, and its metallurgical quality is better too.