Effect of the discharge velocity of the heterophase flow on the physical–mechanical properties of the electric metallizing flow

Litovchenko, N. N.; Petryakov, B.I.; Tolkachev, A. A.; Blokhin, S.A.

doi:10.1080/09507116.2013.840040

Cited by 2 publications

(3 citation statements)

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“…In this form as it shown in the figure heterophase flow moves into electrical circuit, arc, metal sprayer, where thermodissociation of the dissolved substances and other phase transformations [8][9][10][11][12]. 1 -hydro-disperser; 2 -metal sprayer; 3 -filter for compressed air cleaning.…”

Section: Results Of the Researchmentioning

confidence: 99%

Aerosol fluxing in electro arc metallization

Logachev¹,

Kolomeichenko

Kuznetsov

et al. 2017

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. The main structural and technological factors of electric arc metallizers, which significantly affect the quality of their operation, are considered. The results of experimental studies on the adhesion strength, porosity, microhardness and comparative wear resistance of coatings obtained by electroarc metallization are presented. Optimal modes of coating with electroarc metallization are determined. It is established that the use of aerosol fluxing during electric arc metallization provides an increase in adhesion-cohesive strength by 25 ... 30%, an increase in microhardness to 40%, a decrease in porosity by 20 ... 25%. IntroductionIn the world practice of restoring the details of machinery and corrosion protection of aluminum and zinc pipes, equipment and metal structures, electric arc metallization (EM) has become very popular, as one of the most technologically productive, high-quality and universal methods of metal coating. However, along with clearly positive sides, EM has certain drawbacks. This perennial problem is the speed and oxidation of dispersed metal in a heterophase stream. Without overcoming these EM problems, it is impossible to further improve the physical and mechanical properties of metal coatings. Despite the extensive volume of studies carried out to modernize EM over the historical period of its use (over 100 years), these problems remain unresolved.

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Section: Results Of the Researchmentioning

confidence: 99%

Aerosol fluxing in electro arc metallization

Logachev¹,

Kolomeichenko

Kuznetsov

et al. 2017

IOP Conf. Ser.: Mater. Sci. Eng.

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“…The paper [3] proposes the flow diagram of electric arc metallization with a heterophase flow, an electric arc, a metal sprayer, where thermal dissociation of dissolved substances takes place. However, the presented data do not consider the interaction between the gas flow and obstacles in the form of solids -electrodes located at an angle to the flow.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…Specifically, they are applied when examining, identifying, and controlling quality of different materials [1]. For example, in order to distinguish characteristics of the varieties of enriched ore raw materials [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Development of properties of spray flow and nature of pressure distribution in electric arc metalization

Royanov

Zakharova

Lavrova

2017

EEJET

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Розроблено вдосконалену схему процесу електродугової металізації. Вона дозволяє врахувати плавлення оболонки і прилеглого порошкового стержня за рахунок обмеженої дії розпилюючого струмення безпосередньо на «внутрішню» поверхню торців електродів. Цей ефект забезпечує можливість протікання металургійних процесів і отримання легованих частинок при розпиленні порошкових електродів Ключові слова: електродугова металізація, порошковий стрижень, легування, газове середовище, розпорошуючий струмінь Разработана усовершенствованная схема процесса электродуговой металлизации. Она позволяет учесть плавление оболочки и прилегающего порошкового стержня ввиду ограниченного действия распыляющей струи непосредственно на «внутреннюю» поверхность торцов электродов. Этот эффект обеспечивает возможность протекания металлургических процессов и получение легированных частиц при распылении порошковых электродов Ключевые слова: электродуговая металлизация, порошковый стержень, легирование, газовая среда, распыляющая струя

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Effect of the discharge velocity of the heterophase flow on the physical–mechanical properties of the electric metallizing flow

Cited by 2 publications

References 0 publications

Aerosol fluxing in electro arc metallization

Aerosol fluxing in electro arc metallization

Development of properties of spray flow and nature of pressure distribution in electric arc metalization

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