Infrared Temperature Measurement in Continuous Caster

LD 1 Slab Caster At TATA STEEL Hot Liquid Iron(commonly called Hot Metal in Tata Steel) is converted to Steel in the Steel Melting Shops. Hot Metal from the Blast Furnace is stored in Mixers in LD#1 shop. The Hot Metal is converted to Steel in the LD converters by removing its carbon, silicon, sulphur and phosphorous contents. The liquid steel from the converter is converted to billets using Continuous Casting machine. A small portion of steel is teemed into ingots through Bogie Bottom Poring process using cast iron moulds. The liquid steel is treated in On line purging, Ladle Refining Furnace or Argon Rinsing station before continuous casting. Special grades of steel, which are cast as ingots, are processed in On-line purging, followed by the Vacuum Arc degassing & Refining unit. Hot metal is converted to Steel and cast into Billets.

Continuous Casters Measurement Points: Spray Zone Sec A Approx Temp 900 Deg C Spray Zone Sec B 1.5 Meters below Sec A Approx Temp 850 Dec C Exit Zone Spray Zone Sec A Spray Zone Sec B Exit

Continuous Casters Signal Processing Mode Used – Averaging 4..20 mA Output Used for Local Indication of Temperature. Signal Processing Mode Used – Averaging RS485 Used for Interface with their PLC

Benefits Temperature Measured used to control Dynamic Secondary Cooling which improved the product quality. Reduction in Cracks in the final Product.

Benefits Improved process control Increased product uniformity Higher quality products Less production downtime Increased throughput

Certificate for Excellent Performance.