MAGNETIC-INDUCTIVE MEASUREMENT OF THE ZINC LAYER ON THE NON-ALLOY STEEL SHEET

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F15%3A86095634" target="_blank" >RIV/61989100:27360/15:86095634 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27230/15:86095634

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

MAGNETIC-INDUCTIVE MEASUREMENT OF THE ZINC LAYER ON THE NON-ALLOY STEEL SHEET

Popis výsledku v původním jazyce

Surface treatments of metals are important areas of mechanical engineering. Galvanizing, which is a zinc coating on the steel base material by electrolytic deposition, belongs among the wide range of methods. Zn layer protects anodically the base material (usually unalloyed or low-alloy steel) against corrosion. In the final phase of the galvanic process final finish is performed - yellow or blue chromate surface coating. For correct function of the Zn layer it is important to abide the prescribed thickness. In the electroplating plants the thickness of Zn layer is usually measured by magnetic-inductive method. This method is fast, simple and non-destructive. The aim of this work is to verify the accuracy of this method using optical microscopy. Optical microscopy is here understood as the reference method, because this method is accurate and correct. While dealing with the given problems the statistical tests shown, that the differences between the results of the two methods are statistically significant. Therefore results of magnetic-inductive method must be corrected using the calculated conversion factor. After conversion of the measured values the magnetic-inductive method can be recommended to operating measurement of the Zn layer thickness on unalloyed and low-alloyed steels. Furthermore, it was found that the type of final surface treatment (chromate surface coating) does not affect accuracy of measurement of Zn layer.

Název v anglickém jazyce

MAGNETIC-INDUCTIVE MEASUREMENT OF THE ZINC LAYER ON THE NON-ALLOY STEEL SHEET

Popis výsledku anglicky

Surface treatments of metals are important areas of mechanical engineering. Galvanizing, which is a zinc coating on the steel base material by electrolytic deposition, belongs among the wide range of methods. Zn layer protects anodically the base material (usually unalloyed or low-alloy steel) against corrosion. In the final phase of the galvanic process final finish is performed - yellow or blue chromate surface coating. For correct function of the Zn layer it is important to abide the prescribed thickness. In the electroplating plants the thickness of Zn layer is usually measured by magnetic-inductive method. This method is fast, simple and non-destructive. The aim of this work is to verify the accuracy of this method using optical microscopy. Optical microscopy is here understood as the reference method, because this method is accurate and correct. While dealing with the given problems the statistical tests shown, that the differences between the results of the two methods are statistically significant. Therefore results of magnetic-inductive method must be corrected using the calculated conversion factor. After conversion of the measured values the magnetic-inductive method can be recommended to operating measurement of the Zn layer thickness on unalloyed and low-alloyed steels. Furthermore, it was found that the type of final surface treatment (chromate surface coating) does not affect accuracy of measurement of Zn layer.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20506 - Coating and films

Projekt

<a href="/cs/project/LO1203" target="_blank" >LO1203: Regionální materiálově technologické výzkumné centrum - Program udržitelnosti</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

METAL 2015 : 24th International Conference on Metallurgy and Materials : conference proceedings : June 3rd-5th 2015, Hotel Voroněž I, Brno, Czech Republic, EU

ISBN

978-80-87294-62-8

ISSN

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e-ISSN

neuvedeno

Počet stran výsledku

6

Strana od-do

1186-1191

Název nakladatele

Tanger

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

3. 6. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000374706100191