Carburant for manganese-carbon alloy

Abstract

This invention relates to a recarburizer used in steelmaking process, especially relates to alloy recarburizer. Manganese and iron content is increased and specific gravity is increased so recarburization effect is improved. Technique plan is that manganese carbon alloy recarburizer is made by metal alloy powder and carbon material and binding agent. Metal alloy powder can be manganese iron powder or compound of manganese iron powder and iron powder. Carbon material is selected from coke, pitch coke, petroleum coke, carbon powder, coal dust and graphite. This product contains C 20~47%, Mn 35.01~55%, binding agent, silicasol 0.5~2%, it is mainlt used in liquid steel recarburization during steelmaking process.

Description

technical field

[0001] The invention relates to a recarburizer used in the steelmaking process, in particular to a manganese-carbon alloy recarburizer combined with metal and carbon materials. Background technique

[0002] At present, various steel mills use recarburizers to increase the carbon content of molten steel to adjust the carbon content in the steel to meet the steel specification requirements. The carburizer currently used is generally pitch coke, its physical and chemical indicators are: C ≥ 98%, the particle size is 5-15mm, and the bulk specific gravity is 0.6g / cm 3 , the adding method is: when the molten steel is tapped, it is added into the molten steel tank together with the molten steel, relying on the high temperature melting of the molten steel and melting the pitch coke to realize the carburization of the molten steel. This carburizer has the following disadvantages: 1. The specific gravity is small, and its bulk specific gravity is only 0.6g / cm 3 , whi...