<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1815-5944</journal-id>
<journal-title><![CDATA[Ingeniería Mecánica]]></journal-title>
<abbrev-journal-title><![CDATA[Ingeniería Mecánica]]></abbrev-journal-title>
<issn>1815-5944</issn>
<publisher>
<publisher-name><![CDATA[Facultad de Ingeniería Mecánica. Instituto Superior Politécnico "José Antonio Echeverría"]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1815-59442019000200074</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Protección de la tubería principal contra la corrosión en áreas complejas]]></article-title>
<article-title xml:lang="en"><![CDATA[Protection of the main pipeline against corrosion on complex plots]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cueli-Corugedo]]></surname>
<given-names><![CDATA[Alexander]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Renatovich-Latypov]]></surname>
<given-names><![CDATA[Oleg]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rinatovna-Latypova]]></surname>
<given-names><![CDATA[Dina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Adames-Montero]]></surname>
<given-names><![CDATA[Yosmari]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro de Investigación del Petróleo  ]]></institution>
<addr-line><![CDATA[ La Habana]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Técnica Estatal del Petróleo de UFA  ]]></institution>
<addr-line><![CDATA[ UFA]]></addr-line>
<country>Rusia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2019</year>
</pub-date>
<volume>22</volume>
<numero>2</numero>
<fpage>74</fpage>
<lpage>78</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1815-59442019000200074&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1815-59442019000200074&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1815-59442019000200074&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Los daños por corrosión en tuberías principales soterradas se presentaron en las áreas de transición suelo-aire causando problemas grave durante su explotación. El objetivo del artículo consistió en determinar el efecto de los recubrimientos heterogéneos sobre la velocidad de corrosión en las partes de las transiciones suelo-aire en una tubería principal. Se emplearon los métodos estándar para medir los valores electroquímicos: pH del medio y diferencia de potencial de electrodo en diferentes áreas de la superficie metálica. Las muestras de tubos empleados en los ensayos se prepararon con distintos recubrimientos anticorrosivos. Con los resultados de la investigación se demostró cómo la aplicación del aislamiento con materiales heterogéneos condujo a una alta velocidad de corrosión del metal de la tubería en la zona de la transición. El empleo de un recubrimiento uniforme fue una propuesta de solución para reducir la pérdida de metal en un 20% debido a una disminución en la profundidad de las úlceras.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Corrosion damage in buried underground pipelines often occurs in the ground-to-air transition areas causing serious problems during operation. The objective of this paper is to determine the effect of heterogeneous coatings on the corrosion rate in the parts of the soil-air transitions in the main pipelines. Standard methods were used to measure the electrochemical values: pH of the medium and difference of electrode potential in different areas of the metal surface. The tube samples used in the tests were prepared with different anticorrosive coatings. In this work it is demonstrated how the application of the insulation with heterogeneous materials leads to a high speed of the corrosion of the metal of the pipe in the transition zone, however, the use of a uniform coating can reduce the loss of metal by 20 % due to a decrease in the depth of the ulcers.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[tubería principal]]></kwd>
<kwd lng="es"><![CDATA[corrosión]]></kwd>
<kwd lng="es"><![CDATA[aireación diferencial]]></kwd>
<kwd lng="es"><![CDATA[recubrimiento protector]]></kwd>
<kwd lng="en"><![CDATA[main pipeline]]></kwd>
<kwd lng="en"><![CDATA[corrosion]]></kwd>
<kwd lng="en"><![CDATA[differential aeration]]></kwd>
<kwd lng="en"><![CDATA[protective coating]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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