EfficientELO process

EfficientELO – Energy and resource efficient electro-galvanizing of steel strip

Situation:

  • Large amounts of zinc top dross occur as low-grade residues in the hot-dip galvanizing lines
  • High ohmic power losses in electro-galvanizing lines are caused by a relative poor electrolyte conductivity

Solution:

  • Extensive investigations on the usage of top dross as alternative raw material for electro-galvanizing lines
  • Optimization of electrolyte conductivity
  • Development of treatment methods for electrolytes from hot-dip galvanizing top dross

Operational benefit:

  • Decrease of energy and raw material consumption in electro-galvanizing lines
  • Knowledge base on the influence of different electrolyte compositions on the coating and processing properties

Recommendation

Optimal Residual Stress Control – ORSC

Situation: Trend in product development where higher quality standards with tighter material property tolerances are demanded by clients. Quality problems […]

Infire – Strategy to increase the hot strip rolling performance in terms of surface quality, final properties and reproducibility

Situation: Achieving high surface quality of hot rolled high strength steel strip and reproducible rolling results remains challenging: Primary scale […]

SafeDewPoint – Acid dew point and corrosion sensors for dynamic waste heat recovery from steel mill flue gases

During combustion of steel mill gases acid dew point temperature varies strongly. SafeDewPoint aims to recover waste heat in hot […]

BOFdePhos – Control of Dephosphorisation in BOF process

Initial situation: End-point control of the Oxygen Steelmaking Converter (BOF) process is mainly based on results of a static charge […]