中频感应电炉熔炼影响增碳剂吸收率的因素

介绍了中频电炉熔炼时,铸铁牌号、过热温度、增碳剂粒度、增碳剂种类等因素对增碳剂吸收率的影响。实践表明,增碳剂在低牌号铸铁中的吸收率低于高牌号铸铁;铁液过热温度在1460～1550℃范围内升高,利于增碳剂的熔化和吸收;相同过热温度下,增碳剂粒度小,容易被熔化吸收;常见增碳剂中,石墨电极增碳剂的吸收率最高。

Factors Influencing Carburant Absorptivity in Medium-Frequency Induction Furnace Melting

An introduction was made to the influences of the factors such as cast iron grade,overheating temperature,grain size and kinds of carburant on the carburant absorptivity when melting in medium-frequency induction furnace.The production practice showed that the absorptivity of carburant in the lower grade cast irons was higher than that in the higher grade cast irons;raising the overheating temperature in the range of 1 460~1 550 ℃ was beneficial to the melting and being absorbed of the carburant;under the same overheating temperature,the carburant with smaller grain size was more easy to be melted and to be absorbed;the graphite electrode carburant showed the highest absorptivity among the commonly-used carburants.