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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

    Pot Optimization by Numerical Simulation and Material Development

    B
    23 Jun 2021, 08:30
    Virtuel Conference

    Virtuel Conference

    Conveners

    Pot Optimization by Numerical Simulation and Material Development

    • Ari Peltola (SSAB)

    Presentation materials

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    1. 134. FLOW PATTERN ANALYSIS INSIDE AN IMMERSING SNOUT WITH A PARAMETIC SIMULATION MODEL
      Harald Unger (voestalpine Stahl GmbH)
      23/06/2021, 08:30
      HDG Process Technology - Furnace, Galvanizing Bath, Coating Weight Control
      Oral Presentation
      Many surface defects of hot-dip galvanized steel strip are associated with the zinc flow inside the immersing snout. This paper presents an automated simulation workflow, which is used to study the flow patterns inside this critical plant component to give a better understanding of the fluid flow. The comprehensive numerical model of a zinc bath is the basis for this study. A prismatic...
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    2. 5. SNOUT TEMPERATURE PREDICTIVE MODEL AND Zn POT THERMAL BALANCE
      Weimin Zhong (ArcelorMittal Dofasco)
      23/06/2021, 08:50
      Challenges in Galvanizing Advanced High Strength Steels (GI, GA,…)
      Oral Presentation
      Accurate and stable snout temperature can improve the stability of Zn pot temperature and bath chemistry, avoid dross related defects, reduce Zn dust formation, and achieve consistent galvannealing performance. In order to make sure the reliability/accuracy of the snout pyrometer (multiwavelength) for various steel grades (e.g. DP600, DP780 and DP980 etc.) and to monitor the deterioration of...
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    3. 9. Zn VAPOUR INDUCED CORROSION OF 253 MA STAINLESS STEEL END PLATE AND FLANGE IN RETRACTABLE SNOUTS
      Daniel Parker (BlueScope Steel Innovation Labs)
      23/06/2021, 09:10
      Fundamentals on Solid - Liquid Interfacial Reactions
      Oral Presentation
      The end plates and flanges used in retractable snouts are fabricated from 253MA, to overcome failure modes associated with long service periods at temperature above 500oC. Alloy 253MA is creep resistant micro-alloyed stainless steel developed for applications requiring high temperature oxidation resistance. In 253MA the alloying elements Si, Ce, and N promote the formation of a very adherent,...
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    4. 168. THE MODIFICATION PROCESS OF THE DROSS BUILD-UP STRUCTURE ON SUBMERGED HARDWARE IN Zn-Al AND Zn-Al-Mg BATHS
      Mark Bright (Tata Steel Europe)
      23/06/2021, 09:50
      HDG Process Technology - Furnace, Galvanizing Bath, Coating Weight Control
      Oral Presentation
      During hot-dip galvanizing dross particles form in the zinc bath and develop over the surface of submerged pot hardware. This accumulation of dross on the hardware is known as dross build-up. Dross build-up is a critical factor in the pot hardware lifetime. The surface quality of the hardware directly influences the quality of products produced on the galvanizing line. More dross build-up...
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