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CAL - Continuous Annealing Line

CAL - Continuous Annealing Line
The continuous annealing line (CAL) is used to modify the grain structure of steel through heat treatment, changing properties including hardness and strength. 

The process involves several stages, focused on controlled heating and cooling to produce steel with the required qualities. Accurate temperature monitoring and control in each zone is essential for process and quality control.

AMETEK Land has supplied the steel industry with high-quality, reliable temperature measurement solutions for more than 70 years. This experience is concentrated into our range of specialist instruments, designed to provide the essential measurements for steel makers.



 
APPLICATION NOTE
Infrared Process Imaging Systems For Vertical Continuous Annealing Lines - Application Note ENINFRARED PROCESS IMAGING SYSTEMS FOR VERTICAL CONTINUOUS ANNEALING LINES
The continuous annealing line is used to modify the grain structure of steel through heat treatment, changing properties including hardness and strength. To ensure the accurate, edge-to-edge temperature monitoring required, a solution has been devised that overcomes the challenges caused by surface reflections and strip emissivity. Read More > Watch the video >


  • Applications +

    • CAL - Coiler Welder
      Coil Welder

      As the coils are welded together to form continuous steel strips, the SPOT R100 FO fibre-optic thermometer provides a temperature measurement solution to ensure weld quality and prevent line breakages.

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    • CAL - Soaking
      Soaking

      The SPOT M160 fibre-optic thermometer monitors the steel for temperature variations.

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    • CAL - Overaging
      Overaging

      The LSP-HD 21 linescanner provides non-contact edge to edge temperature monitoring at this location.

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    • CAL - Rapid Cooling
      Rapid Cooling

      The LSP-HD 21 linescanner provides non-contact edge to edge temperature monitoring at the exit of the rapid (jet) cooling section.

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    • CAL - Hot Bridle
      Hot Bridle

      Edge to edge temperature measurement verifies overall temperature uniformity at this position. This is accurately monitored with the Landscan LSP-HD scanner.

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  • Videos +

    • SPOT GS - Temperature Measurement of Galvannealed and Galvanized Strip
      AMETEK Land SPOT GS - Temperature Measurement of Galvannealed and Galvanized Strip

      SPOT GS enables automated furnace management to provide close control of the reaction and position of the reaction zone, delivering tighter control of product quality. By maintaining control of the reaction zone, SPOT GS accommodates rapid changes of line speed and furnace power with changes of substrate or coating weight. This allows furnace optimisation; reducing heating costs, maximising throughput and avoiding excessive over-reaction and powdering or flaking of the coating during subsequent forming operations.

    • Advances in Non-Contact Temperature Measurement for Continuous Annealing and Galvanizing Lines
      Advances in Non-Contact Temperature Measurement for Continuous Annealing and Galvanizing Lines

      We introduce how advances in accurate non-contact temperature measurements for continuous annealing (CAL) and galvanizing (CGL) lines ensure required metal characteristics and surface conditions are achieved in steel production. We will then focus on the SPOT GS, an advanced non-contact infrared spot pyrometer specifically designed for continuous, highly accurate measurements of coated steel strip temperature during the galvanneal reaction.

    • Improving Process Efficiency, Monitoring, and Control with Continuous High-resolution Thermal Imaging in Furnaces and Boilers
      Improving Process Efficiency, Monitoring, and Control with Continuous High-resolution Thermal Imaging in Furnaces and Boilers

      We introduces how ground-breaking advances in high-resolution thermal imaging in large furnaces and boilers dramatically improve process efficiency, monitoring and control. It will consider a wide range of continuous process monitoring and controlling applications, used in metal reheat, glass melt and reformer tube furnaces, cement kilns, and coal-fired power and biomass boilers, requiring highly accurate temperature measurement.

  • Documentation +