Refractory mud preparation: the phosphate fire mud and graphite powder according to the ratio of 2:1 poured into the mud hopper, the powder has lumpy particles or debris must be cleaned, evenly stirred and diluted with 20% water, mixed evenly, and covered with plastic paper to prevent dust, debris, etc. from entering the refractory sludge.

The use of carburizing agent should try to put the carburizing agent in the lower part of the furnace, plus other charges. This can reduce the carburant spillover, but also improve the carburant and liquid iron contact surface, so as to improve carburizing efficiency.

Tudish nozzles: The material of tundish nozzles is selected according to the type of steel poured, when pouring general carbon steel, you can use mullite nozzle containing Al2O3 70~75%.

The hardness, strength, wear resistance, ductility and machinability of steel can be significantly improved by adding vanadium iron into steel.

It is widely used as an additive in the smelting of vanadium alloy steel and alloy cast iron, and in recent years it is also used to make permanent magnets.

Furnace door electrode is used to fix the furnace door brick, easy to clean up the slag, the traditional masonry with graphite electrode, due to its own short burn service life, replaced by steel water-cooled analog electrode, a good solution to this problem, the service life can reach more than 2000 furnaces.