Risk Evaluation for Coating Thickness Conformity Assessment

This paper presents the conformity assessment process of the epoxy coating thickness applied on water pipes made of gray cast iron with the specifications given for this kind of coating appliance. An epoxy coating was applied to prevent a special form of corrosion called the graphitization of cast i...

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Main Authors: Dubravka Božić, Marina Samardžija, Marin Kurtela, Zdenka Keran, Biserka Runje
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/16/2/758
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author Dubravka Božić
Marina Samardžija
Marin Kurtela
Zdenka Keran
Biserka Runje
author_facet Dubravka Božić
Marina Samardžija
Marin Kurtela
Zdenka Keran
Biserka Runje
author_sort Dubravka Božić
collection DOAJ
description This paper presents the conformity assessment process of the epoxy coating thickness applied on water pipes made of gray cast iron with the specifications given for this kind of coating appliance. An epoxy coating was applied to prevent a special form of corrosion called the graphitization of cast iron. In order for the pipe to withstand its designed service life, it is necessary to ensure the required thickness of the applied coating. In accordance with the EN 877 norm, the thickness of the epoxy coating on the pipes for the projected corrosiveness of the environment C4 and the durability of 20 years is at least 70 μm and this indicates the required accuracy of the product. To achieve the desired product quality, statistical control of the coating application process was carried out and the impact of uncertainty associated with the measurement result was analyzed. Considering the quality of the coating application process and the quality of the measuring system, and to ensure the quality of products and to reduce consumer risk, the optimal thickness of the coating was determined.
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spelling doaj.art-b79d5e1cfe154d72978b7e6c6f49fea12023-11-30T23:17:46ZengMDPI AGMaterials1996-19442023-01-0116275810.3390/ma16020758Risk Evaluation for Coating Thickness Conformity AssessmentDubravka Božić0Marina Samardžija1Marin Kurtela2Zdenka Keran3Biserka Runje4Department of Quality, Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, 10000 Zagreb, CroatiaDepartment of Chemistry, Faculty of Mining-Geology-Petroleum Engineering, University of Zagreb, 10000 Zagreb, CroatiaDepartment of Welded Structures, Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, 10000 Zagreb, CroatiaDepartment of Technology, Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, 10000 Zagreb, CroatiaDepartment of Quality, Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, 10000 Zagreb, CroatiaThis paper presents the conformity assessment process of the epoxy coating thickness applied on water pipes made of gray cast iron with the specifications given for this kind of coating appliance. An epoxy coating was applied to prevent a special form of corrosion called the graphitization of cast iron. In order for the pipe to withstand its designed service life, it is necessary to ensure the required thickness of the applied coating. In accordance with the EN 877 norm, the thickness of the epoxy coating on the pipes for the projected corrosiveness of the environment C4 and the durability of 20 years is at least 70 μm and this indicates the required accuracy of the product. To achieve the desired product quality, statistical control of the coating application process was carried out and the impact of uncertainty associated with the measurement result was analyzed. Considering the quality of the coating application process and the quality of the measuring system, and to ensure the quality of products and to reduce consumer risk, the optimal thickness of the coating was determined.https://www.mdpi.com/1996-1944/16/2/758global consumer’s riskglobal producer’s riskconformity assessmentmeasurement uncertaintygray cast ironepoxy coating
spellingShingle Dubravka Božić
Marina Samardžija
Marin Kurtela
Zdenka Keran
Biserka Runje
Risk Evaluation for Coating Thickness Conformity Assessment
Materials
global consumer’s risk
global producer’s risk
conformity assessment
measurement uncertainty
gray cast iron
epoxy coating
title Risk Evaluation for Coating Thickness Conformity Assessment
title_full Risk Evaluation for Coating Thickness Conformity Assessment
title_fullStr Risk Evaluation for Coating Thickness Conformity Assessment
title_full_unstemmed Risk Evaluation for Coating Thickness Conformity Assessment
title_short Risk Evaluation for Coating Thickness Conformity Assessment
title_sort risk evaluation for coating thickness conformity assessment
topic global consumer’s risk
global producer’s risk
conformity assessment
measurement uncertainty
gray cast iron
epoxy coating
url https://www.mdpi.com/1996-1944/16/2/758
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