The Paton Welding Journal, 2019, №01



2019 №01 (03)

DOI of Article 10.15407/tpwj2019.01.04

2019 №01 (05)

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The Paton Welding Journal, 2019, #1, 15-24 pages
 
Journal The Paton Welding Journal
Publisher International Association «Welding»
ISSN 0957-798X (print)
Issue #1, 2019 (February)
Pages 15-24

Dependence of hygroscopicity of coatings of low-hydrogen electrodes on composition and structure of liquid glass

A.E. Marchenko¹, V.V. Trachevsky² and N.V. Skorina¹

¹E.O. Paton Electric Welding Institute of the NAS of Ukraine 11 Kazimir Malevich Str., 03150, Kyiv, Ukraine. E-mail: office@paton.kiev.ua
²Technical Center of the NAS of Ukraine 13 Pokrovskaya Str., 04070 Kyiv, Ukraine. E-mail:tracev@imp.kiev.ua

Presented were the results of investigation of hygroscopicity of coatings of low-hydrogen electrodes depending on composition of liquid Li-, Na- and K-glasses as well as their binary mixtures, which were interpreted from point of view of evolution of a silicon-oxygen structure in the process of glass formation under effect of changing type and relationship of cations of alkali metals. Carried diagnostics of structure-functional self-organization of the silicon-oxygen anions in composition of the liquid glasses was performed based on data of a nuclear magnetic resonance. The spectra of nuclear magnetic resonance ²⁹Si were used. Generalized data were considered taking into account dominance of polycondensation mechanism. Correlation between the indices of coating hygroscopicity and relationship of bridge Q⁴, Q³, Q² and nonbridge Q¹ connectivities in structure of the silicon-oxygen anions were determined. 19 Ref., 2 Tables, 12 Figures.
Keywords: arc welding, welding electrodes, coating hygroscopicity, production technology, liquid glass, structure of liquid metal, spectroscopy of nuclear magnetic resonance
 
Received: 30.10.18
Published: 13.02.19
 
 
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Suggested Citation

A.E. Marchenko¹, V.V. Trachevsky² and N.V. Skorina (2019) Dependence of hygroscopicity of coatings of low-hydrogen electrodes on composition and structure of liquid glass. The Paton Welding J., 01, 15-24.

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