Electric Furnace TRIZ Cases

Indirect cooling stabilizes mineral structures and eliminates leachate pollution from steel production.

LMF desulfurization precedes RH vacuum treatment to remove nitrogen and prevent sulfur reversion in non-grain oriented steel.

Aluminum powder reduces titanium dioxide to elemental metal via exothermic displacement, eliminating waste from costly Kroll processes.

Adjusting silicon and titanium content in pig iron melt stores chemical energy to melt additional scrap iron carriers while reducing oxygen consumption.

Adding high-free-energy oxides ensures stable MgO nucleation, resolving oxide separation failures in small ingots to boost fatigue strength.

Electric furnace heating controls chromium oxide reduction to recover metallic chromium from unreduced slag.

Applying an external magnetic field during cooling suppresses spinodal decomposition in stainless steel production.

A steelmaking arc furnace uses residual molten steel from previous heats to preheat new scrap charges, reducing energy input.

A seawater corrosion-resistant marine engineering steel uses silicon deoxidization assisted by zirconium and rare earth elements to form fine composite oxysulfides.

Controlling slag viscosity within 0.5 to 5 poise enables effective smelting of titaniferous materials like ilmenite while maintaining process reliability.

A plasma heat treatment forms a metallic shell around direct reduced iron cores to reduce surface area and minimize dust generation.

A medium carbon secondary hardening steel alloy incorporates nickel to boost yield strength and fracture toughness.

Electrical furnace reduction lowers copper grade in slag below 0.8 percent, enabling slag reuse as steel raw material and reducing resource loss.

Screening and compacting lime near the electric arc furnace eliminates hazardous waste disposal costs while maintaining material recovery.

Combines steel scrap recycling with construction waste cement paste in an electric arc furnace to produce molten steel and clinkered slag.

Water-soluble sulfates mediate aluminum in basic refractory batches, preventing hydrogen damage while enhancing slag resistance and hot bending strength.

Hydrogen reduction of purified iron ore powder eliminates carbon dioxide emissions and reduces energy consumption during steel production.

A slag cleaning furnace receives blister and slag from a suspension smelting furnace to utilize excess thermal energy for material processing.

Segmented distributor openings produce granulated ferrochromium with 7% fines, reducing dissolution time in steel melts.

Pre-compensated electrode composition stabilizes beta-gamma-TiAl alloy solidification, preventing crack formation and structural defects.

Adjusting top ladle slag chemistry with calcium-aluminum modifiers reduces titanium below 15ppm while maintaining high desulfurization efficiency.

A submerged plasma torch generates an oxidizing gas mixture to volatilize zinc from industrial residues, reducing refractory lining degradation.

Buffer mode stores sponge iron when collection containers are unavailable, resolving contradictions between production efficiency and system reliability.

A rotatable burner lance insert adjusts discharge direction to homogenize the steel bath volume in electric arc furnaces.

Angled injectors create slag turbulence to boost reaction efficiency while preventing lance wear from direct melt contact.

Liquid pig iron enables large-scale amorphous alloy production by controlling carbon concentration and minimizing oxidation losses during solidification.