Industrial Ferrochrome
(1) Appropriate melting performance: Simply using easily meltable chromite will cause premature slag appearance. If the melting speed is faster than the reduction speed, chromium will easily escape from the slag, making smelting more difficult.
(2) Have appropriate lumpiness matching: When fine ore is used alone, it will cause the sintering of the ore, which will worsen the air permeability of the material surface and seriously damage the smelting atmosphere. Large lumpiness will cause alloy The carbon content is low.
High Carbon Ferro Chrome Low Silicon
(3) There must be a suitable MgO/Al2o3 ratio: because it will affect the electrical conductivity and reduction performance of the slag, and will affect the alloy containing Tan Rong plate, in actual production, if the MgO/Al2o3 ratio is low, you need to add enough The purpose of increasing the thickness of the coke layer is to protect the bottom of the furnace from damage and to increase the residence time of unreduced ore cores.
Ferro Chrome
(4) There must be a suitable ferrochromium ratio: Generally speaking, smelting alloys with a chromium content greater than 50% requires the Cr2o3/∑FeO ratio of the comprehensive ore entering the furnace to be greater than 2.0; while smelting alloys with a chromium content greater than 50% is required Sixty alloys require this ratio to be greater than 2.6.
