{"id":3258,"date":"2025-12-01T13:46:46","date_gmt":"2025-12-01T13:46:46","guid":{"rendered":"https:\/\/www.railgrindingwheel.com\/?p=3258"},"modified":"2026-01-28T14:04:37","modified_gmt":"2026-01-28T14:04:37","slug":"soldadura-termica-para-vias-ferreas","status":"publish","type":"post","link":"https:\/\/www.railgrindingwheel.com\/es\/soldadura-termica-para-vias-ferreas\/","title":{"rendered":"Soldadura Thermit para v\u00edas f\u00e9rreas"},"content":{"rendered":"
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Soldadura Thermit para v\u00edas f\u00e9rreas<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Como todos sabemos, las v\u00edas f\u00e9rreas se fabrican con determinadas longitudes, como 12,5 m, 25 m y las m\u00e1s largas, de 50 m a 100 m. Independientemente de la longitud del ra\u00edl, es necesario unirlos de extremo a extremo para formar una v\u00eda f\u00e9rrea continua. Esto se puede conseguir mediante juntas de ra\u00edl (barras de uni\u00f3n) o m\u00e9todos de soldadura. En este momento, nos centramos en la soldadura de v\u00edas f\u00e9rreas.\u00a0<\/span><\/p><\/div>

Existen cuatro m\u00e9todos comunes para soldar:\u00a0v\u00edas f\u00e9rreas<\/a>. Son la soldadura por chispa, la soldadura por presi\u00f3n de gas, la soldadura por arco cerrado y la soldadura por termita. \u00bfCu\u00e1les son las diferencias entre estos m\u00e9todos? Hemos resumido las aplicaciones en diferentes condiciones de construcci\u00f3n para que puedas compararlas.<\/p>

Condici\u00f3n de construcci\u00f3n<\/span><\/th>soldadura por termita<\/span><\/th>soldadura por arco cerrado<\/span><\/th>soldadura por chispa<\/span><\/th>soldadura por presi\u00f3n de gas<\/span><\/th><\/tr><\/thead>
Lugar fijo<\/td>S\u00ed<\/td>No<\/td>Aplicable<\/td>Aplicable<\/td><\/tr>
Lugar fijo<\/td>No apto para uso masivo.<\/td>\u00a0<\/td>Para uso masivo<\/td>Para uso masivo<\/td><\/tr>
En la l\u00ednea ferroviaria<\/td>Aplicable<\/td>No<\/td>No<\/td>No<\/td><\/tr>
Extremo del riel con forma especial<\/td>Aplicable<\/td>No<\/td>No<\/td>No<\/td><\/tr>
Durante intervalos cortos de conducci\u00f3n<\/td>Aplicable<\/td>No<\/td>No<\/td>No<\/td><\/tr>
Sin parada (solo tranv\u00eda)<\/td>Aplicable<\/td>No<\/td>No<\/td>No<\/td><\/tr><\/tbody><\/table><\/figure>

En resumen, la soldadura con termita es el m\u00e9todo m\u00e1s utilizado para soldar v\u00edas f\u00e9rreas. Es f\u00e1cil de manejar y no requiere energ\u00eda el\u00e9ctrica. El equipo y los materiales necesarios son f\u00e1ciles de conseguir.\u00a0<\/p>

El principio de la soldadura t\u00e9rmica ferroviaria<\/h2>

La soldadura t\u00e9rmica de rieles es un m\u00e9todo de soldadura que utiliza el calor de la reacci\u00f3n qu\u00edmica como fuente de calor. Al soldar, los extremos de los dos rieles se fijan previamente en el molde y, a continuaci\u00f3n, se calienta en el crisol la mezcla de polvo de aluminio y polvo de \u00f3xido de hierro (denominada termita). Una reacci\u00f3n exot\u00e9rmica produce metal l\u00edquido (hierro) y escoria fundida que se inyectan en el molde. El metal l\u00edquido fluye hacia los huecos de la uni\u00f3n para formar metal de soldadura, mientras que la escoria flota en la superficie. Para ajustar la temperatura de la fusi\u00f3n y la composici\u00f3n qu\u00edmica del metal de soldadura, a menudo se a\u00f1aden aditivos y aleaciones adecuados a la termita.<\/p>

\"soldadura
Soldadura con termita para v\u00edas f\u00e9rreas<\/figcaption><\/figure><\/div>

El proceso de soldadura de rieles ferroviarios<\/h2>
\"proceso-de-soldadura-de-v\u00edas-ferroviarias\"<\/figure><\/div><\/div><\/div>

\u00a0<\/p>

  1. Preparaci\u00f3n<\/span><\/li><\/ol>

    Preparaci\u00f3n del equipo y el material auxiliar<\/span>
    Materiales necesarios: termita, molde de arena, crisol, barro sellador, cerillas para altas temperaturas, muela abrasiva, propano, ox\u00edgeno, manguera.
    Equipo auxiliar: molde, bandeja para escoria, horquilla para crisol, fijaci\u00f3n para molde de arena, tapa para molde de arena, regla inclinada de 1 m, term\u00f3metro de riel, dispositivo de sujeci\u00f3n, palanca, bastidor de precalentamiento, cu\u00f1a de acero.
    Maquinaria auxiliar: sierra de riel, pulidora, amoladora port\u00e1til, etc.<\/p>

    Preparaci\u00f3n de v\u00edas f\u00e9rreas<\/span>
    Descargue los 2-4 pares de\u00a0sujetadores para rieles<\/a>\u00a0en ambos lados del extremo de soldadura.<\/p>

    \"equipo-para-soldar-v\u00edas-ferroviarias\"<\/figure><\/div>
    1. Limpieza y secado de los extremos de los rieles<\/span>
      Utilice el\u00a0      amoladora port\u00e1til<\/a>\u00a0para eliminar el \u00f3xido y descontaminar el extremo del riel. Aseg\u00farese de que la superficie de los extremos del riel que se va a soldar est\u00e9 seca y limpia.<\/li>
    2. Alineaci\u00f3n del extremo del riel<\/span>
      La anchura entre los extremos del riel debe ser de 27 mm a 30 mm. Es necesario que la cabeza, el alma y la base del riel est\u00e9n alineados vertical y horizontalmente.<\/li>
    3. Instalaci\u00f3n de accesorios<\/span>
      El accesorio debe instalarse en la direcci\u00f3n del viento.<\/li>
    4. Instalaci\u00f3n de moldes de arena<\/span>
      El orificio de vertido se recorta ligeramente para evitar que las part\u00edculas de arena se desprendan durante el precalentamiento y el vertido, lo que dar\u00eda lugar a la formaci\u00f3n de escoria de soldadura.
      Instale primero la placa inferior, luego instale el molde lateral y, por \u00faltimo, utilice la abrazadera para fijar el molde de arena.<\/li>
    5. Sellado<\/span>
      Aplique barro sellador a la salida del molde de arena y a la rosca del accesorio para sellar herm\u00e9ticamente el molde de arena y el riel.<\/li>
    6. Precalentamiento<\/span>
      En primer lugar, regule la presi\u00f3n de trabajo del propano y el ox\u00edgeno. En segundo lugar, instale el calentador en el bastidor, ajuste la boquilla al centro del molde de arena y coloque el tap\u00f3n de derivaci\u00f3n en el borde del molde de arena, retire el calentador del soporte y encienda la boquilla. En tercer lugar, regule la presi\u00f3n y la proporci\u00f3n de mezcla de propano y ox\u00edgeno para obtener la mejor llama. Por \u00faltimo, precaliente durante 5 minutos.<\/li>
    7. Instalaci\u00f3n del crisol<\/span>
      Este paso se prepara al mismo tiempo que el precalentamiento. Mezcle la termita de manera uniforme y vi\u00e9rtala en el crisol. Inserte la cerilla de alta temperatura y luego cubra el crisol.<\/li>
    8. Encendido<\/span>
      Coloque el crisol sobre el molde de arena inmediatamente despu\u00e9s de terminar el precalentamiento. Verifique la posici\u00f3n y encienda la cerilla r\u00e1pidamente.<\/li>
    9. Reacci\u00f3n de termita<\/span>
      Observe la reacci\u00f3n qu\u00edmica. Cuando aparece la llama abierta, es el momento en que comienza la reacci\u00f3n de la termita. Tan pronto como la llama se apaga, la reacci\u00f3n qu\u00edmica se detiene. Normalmente, la reacci\u00f3n de la termita dura entre 8 y 15 segundos.<\/li>
    10. Desmoldeo<\/span>
      Retire el molde de arena y la bandeja de escoria 5 minutos despu\u00e9s de verter el hierro fundido.<\/li>
    11. Cortar el exceso de termita.<\/span>
      Corta el exceso de termita y dobla las que sobresalen a ambos lados de la base del riel.<\/li>
    12. Molienda<\/span>
      Este es el \u00faltimo paso del proceso de soldadura de rieles ferroviarios. Su objetivo es dejar la superficie de los rieles unidos plana y lisa.<\/li><\/ol>

      Una vez completados los 13 pasos, compruebe las juntas soldadas para asegurarse de que cumplen con los est\u00e1ndares. Vuelva a colocar las v\u00edas del tren en su lugar original. Adem\u00e1s, a\u00fan queda trabajo de limpieza por hacer. Los trabajadores deben retirar el polvo, la escoria, los residuos, el molde de arena y el crisol.<\/p><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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      Thermit Welding For Railroad Tracks As we all know, railroad tracks are produced with certain lengths, such as 12.5m, 25m, and the lengthen ones from 50m to 100m. No matter how long the railroad rail is, they need to be joined end to end to make a continuous railroad. This can be realized by rail […]<\/p>\n","protected":false},"author":4,"featured_media":3266,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"site-sidebar-layout":"right-sidebar","site-content-layout":"","ast-site-content-layout":"normal-width-container","site-content-style":"default","site-sidebar-style":"boxed","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"disabled","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"disabled","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[88],"tags":[],"class_list":["post-3258","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nThermit Welding For Railroad Tracks<\/title>\n<meta name=\"description\" content=\"There are four common methods for welding railroad tracks. They are the flash-butt welding, the gas-pressure welding, the enclosed-arc welding, and the thermit welding. What are the differences between these methods? We have summarized the applications under different construction conditions for your comparison.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.railgrindingwheel.com\/es\/soldadura-termica-para-vias-ferreas\/\" \/>\n<meta property=\"og:locale\" content=\"es_MX\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Thermit Welding For Railroad Tracks\" \/>\n<meta property=\"og:description\" content=\"There are four common methods for welding railroad tracks. They are the flash-butt welding, the gas-pressure welding, the enclosed-arc welding, and the thermit welding. What are the differences between these methods? We have summarized the applications under different construction conditions for your comparison.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.railgrindingwheel.com\/es\/soldadura-termica-para-vias-ferreas\/\" \/>\n<meta property=\"og:site_name\" content=\"Rail Grinding Wheel\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/people\/Jumbo-Abrasives-Company\/100088416174057\/\" \/>\n<meta property=\"article:published_time\" content=\"2025-12-01T13:46:46+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-28T14:04:37+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2025\/12\/Thermit-Welding-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1080\" \/>\n\t<meta property=\"og:image:height\" content=\"720\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Shao Junying\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@ShaoJunying\" \/>\n<meta name=\"twitter:site\" content=\"@ShaoJunying\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Shao Junying\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tiempo de lectura\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.railgrindingwheel.com\/thermit-welding-for-railroad-tracks\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.railgrindingwheel.com\/thermit-welding-for-railroad-tracks\/\"},\"author\":{\"name\":\"Shao Junying\",\"@id\":\"https:\/\/www.railgrindingwheel.com\/#\/schema\/person\/7bfe83932abe83307dd380c77ba0541f\"},\"headline\":\"Thermit Welding For Railroad Tracks\",\"datePublished\":\"2025-12-01T13:46:46+00:00\",\"dateModified\":\"2026-01-28T14:04:37+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.railgrindingwheel.com\/thermit-welding-for-railroad-tracks\/\"},\"wordCount\":809,\"publisher\":{\"@id\":\"https:\/\/www.railgrindingwheel.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.railgrindingwheel.com\/thermit-welding-for-railroad-tracks\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2025\/12\/Thermit-Welding-scaled.jpg\",\"articleSection\":[\"Blog\"],\"inLanguage\":\"es\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.railgrindingwheel.com\/thermit-welding-for-railroad-tracks\/\",\"url\":\"https:\/\/www.railgrindingwheel.com\/thermit-welding-for-railroad-tracks\/\",\"name\":\"Thermit Welding For Railroad Tracks\",\"isPartOf\":{\"@id\":\"https:\/\/www.railgrindingwheel.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.railgrindingwheel.com\/thermit-welding-for-railroad-tracks\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.railgrindingwheel.com\/thermit-welding-for-railroad-tracks\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2025\/12\/Thermit-Welding-scaled.jpg\",\"datePublished\":\"2025-12-01T13:46:46+00:00\",\"dateModified\":\"2026-01-28T14:04:37+00:00\",\"description\":\"There are four common methods for welding railroad tracks. 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