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    12th International Conference on Zinc & Zinc Alloy Coated Steel Sheet - GALVATECH 2021

    21–23 Jun 2021 Virtual Conference
    Virtuel Conference
    Europe/Vienna timezone
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    Session

    Furnace I - Temperature Control Challenges

    B
    21 Jun 2021, 10:50
    Virtuel Conference

    Virtuel Conference

    Conveners

    Furnace I - Temperature Control Challenges

    • Omar Garcia-Rincon (TERNIUM Mexico SA de CV)
    • Sergey Yashchuck (Severstal)

    Presentation materials

    There are no materials yet.

    1. 82. NONLINEAR MODEL PREDICTIVE TEMPERATURE CONTROL OF A COMBINED DIRECT- AND INDIRECT-FIRED STRIP ANNEALING FURNACE
      Martin Niederer (Austrian Institute of Technology / Center for Vision, Automation & Control)
      21/06/2021, 11:10
      HDG Process Technology - Furnace, Galvanizing Bath, Coating Weight Control
      Oral Presentation

      In a hot-dip galvanizing line for the production of zinc-coated steel strips, the heat treatment of the strip is an important process step. In order to achieve the desired material and surface properties, the strip has to be heated according to a predefined temperature trajectory. From the viewpoint of control, this is a challenging task, in particular in transient furnace operation, e.g. when...

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    2. 125. EFFECT OF ANNEALING ATMOSPHERE AND STEEL ALLOY COMPONENTS ON SURFACE TOPOGRAPHY AND RADIATIVE PROPERTIES OF ADVANCED HIGH STRENGTH STEEL STRIP DURING CONTINUOUS GALVANIZING
      Kaihsiang Lin (University of Waterloo)
      21/06/2021, 11:30
      Challenges in Galvanizing Advanced High Strength Steels (GI, GA,…)
      Oral Presentation
      Substandard advanced high strength steel (AHSS) mechanical properties produced through continuous galvanizing can often be traced back to temperature excursions during intercritical annealing, caused by errors in the pyrometrically-inferred temperatures used to control the furnaces. These errors originate from the changing surface state of the steel strip, in terms of roughness and oxide...
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    3. 118. INCREASING LIFETIME OF METALLIC RADIANT TUBES IN VERTICAL GALVANIZING LINES
      Nico Schmitz (Department for Industrial Furnaces and Heat Engineering / RWTH Aachen University)
      21/06/2021, 11:50
      HDG Process Technology - Furnace, Galvanizing Bath, Coating Weight Control
      Oral Presentation

      The main focus of the proposed paper is on the design and efficient operation of metallic recirculating radiant tubes installed with recuperative or regenerative burners in vertical strip galvanizing lines. Premature tube failures may result in loss of production capacity arising from reduced heat input or, worse, unplanned plant shutdowns. As a galvanizing line furnace equipped with around...

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    4. 86. APPLICATION OF A PHYSICS-BASED EMPIRICAL MODEL FOR ESTIMATION OF RADIANT TUBE TEMPERATURES IN A GALVANIZING LINE
      Alexander Reimann (Department for Industrial Furnaces and Heat Engineering (RWTH Aachen University))
      21/06/2021, 12:10
      In-Line Measurements and Quality Control
      Oral Presentation
      Measurements at high-temperature facilities such as galvanizing lines are often possible only to a limited extent. Moreover, many of the processes involved are too complex to apply existing numerical methods such as CFD to provide the desired information. Therefore, an empirical method was developed to estimate process data which is not measured. The method was demonstrated by determining the...
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