Wyniki wyszukiwania - BazTech

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A new high thermal shock resistant onelayer glass–ceramic coating for industrial and engineering applications

Mohmmed J. H.

Journal of Achievements in Materials and Manufacturing Engineering

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2017

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Vol. 82, nr 2

70--76

EN

Purpose: A new high thermal stability single layer glass–ceramic coating system designing for applied on various grade of steel alloy has been developed in this work. Design/methodology/approach: The thermal shock resistance, thermal conductivity and thermal expansion of the coating system were evaluated by using suitable standard tests. Some crystalline agents (Lithium oxide Li2O, Titanium oxide TiO2, Zircon ZrSiO4 and Feldspar CaO∙Al2O3∙2SiO2) were add at constant ratio 6% to coating system to evaluate their effects on the resultant coatings. Findings: The results indicate the suitability of these coatings for protection of metal substrate. Also the results show that the properties of resultant coating were hardly affected by composition and concentration of crystalline agent. Research limitations/implications: Coating with lithium oxide has the lowest thermal expansion, which means the highest thermal shock resistance. While, values of thermal conductivity were too close for all types of coating. Originality/value: Generally, the resultant coating properties have been enhanced in all cases; this is associated with the introduce the crystalline agent which lead to the formation of a complex network of crystalline phases.

2

Wpływ jakości powłoki emaliowanej na niszczenie blach wymienników ciepła

Hernas A., Moskal G., Juściński J.

Inżynieria Materiałowa

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2013

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Vol. 34, nr 6

703--711

PL

W artykule przedstawiono wyniki badań w warunkach laboratoryjnych oraz eksploatacyjnych emaliowanych blach wymienników ciepła obrotowych podgrzewaczy powietrza i spalin. Analizie poddano blachy z nowego typu powłokami emalierskimi jedno- i dwuwarstwowymi. Scharakteryzowano wpływ jakości powłoki emalierskiej na proces niszczenia w warunkach prób korozyjnych i eksploatacyjnych w rzeczywistych warunkach pracy. Określono rolę porowatości oraz sposobu przygotowania krawędzi balach w obszarze zimnego końca. Opracowano schematyczny model zjawisk zachodzących podczas niszczenia obszaru zimnego końca blach emaliowanych.

EN

Results of investigations in laboratory and real work conditions of enamel coated sheets of rotated heat exchanger of air and combustion gases was described in this article. New types of enamel coatings of single- and double layers was analyzed. The influence of coating quality on degradation process during laboratory conditions and actually work conditions was made. The key of porosity and methodology of cold edge preparation was determined as well. The schematic model of destruction process in area of cold edge was worked out.

3

Pomiary szczelności powłok emalierskich na powierzchniach wewnętrznych zbiorników

Barmuta P., Dziedzic H., Chomczyk R., Pytel P.

Wiadomości Elektrotechniczne

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2011

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R. 79, nr 4

46-47

PL

Omówiono metody badań szczelności powłok emalierskich na powierzchniach wewnętrznych zbiorników.

EN

The authors discuss methods for testing density of enamel coating on internal surfaces of tanks.