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CGL - Continuous Galvanizing Line

CGL - Continuous Galvanizing Line
The purpose of the continuous galvanizing line (CGL) is to apply a coating of zinc or zinc/aluminium onto the surface of steel strip to improve corrosion resistance. 

Galvannealing is optionally performed to alloy the coating into the steel substrate. This requires accurate temperature monitoring at the exit of the galvanneal section. 

AMETEK Land has supplied the steel industry with high-quality, reliable temperature measurement solutions for more than 70 years. Our range of specialist instruments includes the SPOT GS which is designed specifically for automated furnace management and provides close control of the reaction and position of the reaction zone, which delivers tighter control of product quality in the galvanneal process.



 
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 >


WATCH OUR NEW VIDEO
 

  • Applications +

    • CGL - Galvanneal Exit
      Galvanneal Exit

      Once the strip leaves the zinc bath, it is subjected to in-line heat treatment t to alloy the coating into the steel substrate. AMETEK Land’s SPOT GS is designed for measurement of this process.

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    • CGL - Top Roll
      Top Roll

      The LSP-HD 61 monitors temperature across the entire width of the strip at this location.

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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 +