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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

    On-line Measurements - Cleanliness, Austenite Fraction and Coating Defects

    B
    22 Jun 2021, 10:40
    Virtuel Conference

    Virtuel Conference

    Conveners

    On-line Measurements - Cleanliness, Austenite Fraction and Coating Defects

    • Frances Bleich (ArcelorMittal USA)

    Presentation materials

    There are no materials yet.

    1. 190. CLEANLINESS MEASUREMENT BY INNOVATIVE LIBS METHOD
      Thomas Gossuin (CRMGroup)
      22/06/2021, 10:40
      In-Line Measurements and Quality Control
      Oral Presentation

      Nowadays, automotive steel customers are more and more strict on the coating quality, especially for the exposed parts that should not have any aspect defect.
      To satisfy this requirement at the exit of galvanising line, one important parameter is the cleanliness of the substrate surface after the cleaning section at the entry of the line in terms of carbon pollution and iron fines. ...

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    2. 163. PRODUCER EXPERIENCES AND ADVANCEMENTS WITH AN ONLINE, NON-CONTACT SURFACE CLEANLINESS MONITOR
      Eric Almquist (Star Tool & Die Works)
      22/06/2021, 11:00
      In-Line Measurements and Quality Control
      Oral Presentation

      Over the past two years, four CGLs have installed an online, surface cleanliness monitor system utilizing a non-contact, laser ablation technique to evaluate the contamination layer on the moving sheet. The CGL operators using the system obtain unprecedented detail about the sheet’s surface cleanliness along the entire length of each coil.

      The system has been improved over the last two...

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    3. 7. NEW APPROACH FOR ONLINE AUSTENITE FRACTION MEASUREMENT FORMED DURING CONTINUOUS ANNEALING PROCESS. PART I: MEASURE ON HIGH STRENGTH MICROALLOYED STEEL GRADES
      Alessandro Ferraiuolo (Marcegaglia Ravenna)
      22/06/2021, 11:20
      New Technological Concepts
      Oral Presentation
      This paper presents the results of the development of an innovative methodology for the online measurement of austenite fraction formed during intercritical annealing in HDG lines. The approach is based on the definition of the analytical equation (Feral equation) relating the austenite fraction formed at soaking temperature with the epitaxial ferrite growth occurring during the reverse...
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    4. 186. IN-LINE CHARACTERISATION OF THE AUSTENITE LEVEL TO ENSURE THE MECHANICAL PROPERTIES ALONG THE COIL
      Olivier Herbiet (CRM GROUP)
      22/06/2021, 11:40
      In-Line Measurements and Quality Control
      Oral Presentation

      During the manufacturing of the modern high strength steels, it is very important to know the austenite level compared to ferrite at given positions in the line during the steel production. Indeed, ensuring the constancy of the austenite fraction is mandatory for the constancy of the mechanical properties of the final product.
      There are several positions in the line where it is essential...

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    5. 120. SIAS® 4.0 - THE NEXT GENERATION OF AUTOMATIC SURFACE INSPECTION SYSTEM USING CONVOLUTIONAL NEURON NETWORK FOR DETECTION AND CLASSIFICATION OF SURFACE DEFECTS
      Yvon Fontaine (Clecim S.A.S.)
      22/06/2021, 12:00
      Structure and Surface Analysis as well as Defect Characterization
      Oral Presentation

      The surface quality of a finished product on a galvanizing line is a very important criteria, especially for automotive and home appliance exposed products. To control it, automatic surface inspection systems (ASIS) have been developed since many years and are installed on all galvanizing lines dealing with high product quality. A highly performant ASIS from Primetals Technologies has been...

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