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Ramming material for ferroalloy electric furnace bottom

Ramming material for ferroalloy electric furnace bottom

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This material is used for the construction and knotting of the bottom of the refining furnace of the ferroalloy electric furnace.

Manufacturing process: The ramming material for the bottom of the ferroalloy electric furnace is made of synthetic sand produced by our company and formulated with a reasonable particle size. The material has good sintering performance, high bulk density, high compressive strength, easy sintering, strong corrosion resistance, etc. It is an ideal refractory material for the bottom of ferroalloy refining electric furnace.

Indicators and grades DHL-83
chemical components(%) MgO >84
CaO 7-9
Fe2O3 5-6
SiO2 <1.2
AI2O3 <0.6
I.L <0.5
Physical properties Granularity composition (mm) 0-6
Particle density (g/cnP) >3.30
Strength after sintering (1300°CX3h) (Mpa) >8-14
Strength after sintering (1600°CX3h) (Mpa) >39
Combining features ceramics
Linear change rate (1300°CX3h) (%) +0.1—+0.17
Linear change rate (1600°CX3h) (%) -1.8 – -2
Operating temperature limit (°C) 1950°C