{"id":3258,"date":"2025-12-01T13:46:46","date_gmt":"2025-12-01T13:46:46","guid":{"rendered":"https:\/\/www.railgrindingwheel.com\/?p=3258"},"modified":"2026-06-23T07:38:07","modified_gmt":"2026-06-23T07:38:07","slug":"thermit-welding-for-railroad-tracks","status":"publish","type":"post","link":"https:\/\/www.railgrindingwheel.com\/pt\/thermit-welding-for-railroad-tracks\/","title":{"rendered":"Thermit Welding For Railroad Tracks"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"3258\" class=\"elementor elementor-3258\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e24271c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e24271c\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-0584258\" data-id=\"0584258\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d756e57 elementor-widget__width-initial elementor-widget elementor-widget-heading\" data-id=\"d756e57\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Thermit Welding For Railroad Tracks<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b4dd27c elementor-toc--minimized-on-tablet elementor-widget elementor-widget-table-of-contents\" data-id=\"b4dd27c\" data-element_type=\"widget\" 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elementor-share-buttons--skin-gradient elementor-share-buttons--shape-square elementor-grid-0 elementor-share-buttons--color-official elementor-widget elementor-widget-share-buttons\" data-id=\"0c1de1c\" data-element_type=\"widget\" data-widget_type=\"share-buttons.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-grid\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-grid-item\">\n\t\t\t\t\t\t<div\n\t\t\t\t\t\t\tclass=\"elementor-share-btn elementor-share-btn_linkedin\"\n\t\t\t\t\t\t\trole=\"button\"\n\t\t\t\t\t\t\ttabindex=\"0\"\n\t\t\t\t\t\t\taria-label=\"Partager sur linkedin\"\n\t\t\t\t\t\t>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-share-btn__icon\">\n\t\t\t\t\t\t\t\t<i class=\"fab fa-linkedin\" aria-hidden=\"true\"><\/i>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-grid-item\">\n\t\t\t\t\t\t<div\n\t\t\t\t\t\t\tclass=\"elementor-share-btn 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class=\"elementor-element elementor-element-0bea582 elementor-widget elementor-widget-text-editor\" data-id=\"0bea582\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"gb-container gb-container-c9a911f0\" style=\"display: flex; flex-direction: row; align-items: center; justify-content: center; column-gap: 20px; margin-bottom: 40px; color: #49586d; font-family: 'Open Sans', sans-serif; font-size: 16px; font-style: normal; font-weight: 400; background-color: #f2f5f7;\"><p class=\"gb-headline gb-headline-9a2b46ee gb-headline-text\" style=\"margin-bottom: 20px; width: 750px; font-size: 24px; font-weight: 600; color: #02234e;\"><span style=\"font-size: 16px; color: #49586d;\">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 joints (joint bars) or welding methods. At this moment, we focus on welding railroad tracks.\u00a0<\/span><\/p><\/div><div class=\"gb-container gb-container-eb4ebb3c\" style=\"font-weight: 400; border-bottom: 1px solid #e2e5e9; color: #49586d; font-family: 'Open Sans', sans-serif; font-size: 16px; font-style: normal; background-color: #f2f5f7;\"><div class=\"dynamic-entry-content\"><p style=\"margin-bottom: 20px;\">There are four common methods for welding\u00a0<a style=\"transition: color 0.1s ease-in-out, background-color 0.1s ease-in-out; color: #016bf3;\" href=\"https:\/\/railroadrails.com\/\">railroad tracks<\/a>. 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.<\/p><figure class=\"wp-block-table is-style-regular\" style=\"padding: 0px; border: 0px; overflow-x: auto;\"><table class=\"has-accent-2-background-color has-background\" style=\"border-style: solid; border-color: rgba(0, 0, 0, 0.1); border-image: initial; border-collapse: collapse; width: 1520px; background-color: #dceffc;\"><thead style=\"border-bottom-width: 3px; border-bottom-style: solid;\"><tr><th style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\"><span style=\"font-weight: bold;\">Construction condition<\/span><\/th><th style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\"><span style=\"font-weight: bold;\">thermit welding<\/span><\/th><th style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\"><span style=\"font-weight: bold;\">enclosed-arc welding<\/span><\/th><th style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\"><span style=\"font-weight: bold;\">flash-butt welding<\/span><\/th><th style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\"><span style=\"font-weight: bold;\">gas-pressure welding<\/span><\/th><\/tr><\/thead><tbody><tr><td style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\">Fixed venue<\/td><td style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\">Yes<\/td><td style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\">No<\/td><td style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\">Applicable<\/td><td style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\">Applicable<\/td><\/tr><tr><td style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\">Fixed venue<\/td><td style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\">Not for massive use<\/td><td style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\">\u00a0<\/td><td style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\">For massive use<\/td><td style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\">For massive use<\/td><\/tr><tr><td style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\">On railway line<\/td><td style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\">Applicable<\/td><td style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\">No<\/td><td style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\">No<\/td><td style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\">No<\/td><\/tr><tr><td style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\">Specially shaped rail end<\/td><td style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\">Applicable<\/td><td style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\">No<\/td><td style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\">No<\/td><td style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\">No<\/td><\/tr><tr><td style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\">During short driving intervals<\/td><td style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\">Applicable<\/td><td style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\">No<\/td><td style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\">No<\/td><td style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\">No<\/td><\/tr><tr><td style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\">No stop (Tramway only)<\/td><td style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\">Applicable<\/td><td style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\">No<\/td><td style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\">No<\/td><td style=\"border-top: 1px solid; border-left: 1px solid; border-right-style: solid; border-bottom-style: solid; border-right-color: initial; border-bottom-color: initial; border-image: initial; padding: 0.5em;\">No<\/td><\/tr><\/tbody><\/table><\/figure><p style=\"margin-bottom: 20px;\">In a word, thermit welding is the most widely used method for welding railroad tracks. It is simple to operate, and has no need of electric power. The equipment and materials required are easy to get.<\/p><h2 class=\"wp-block-heading\" style=\"margin-bottom: 20px; font-family: role; font-size: 32px; font-weight: 400; line-height: 1.2em; text-transform: capitalize; color: #02234e;\">The principle of railroad thermit welding<\/h2><p style=\"margin-bottom: 20px;\">Railroad thermite welding is a welding method that uses the heat of chemical reaction as the heat source. When welding, the ends of the two rails are fixed in the mold in advance, and then the mixture of aluminum powder and iron oxide powder (called thermite) is heated in the crucible. An exothermic reaction is producing liquid metal (Iron) and molten slag which are injected into the mold. Liquid metal flows into the joint gaps to form weld metal, while slag floats on the surface. To adjust the temperature of the melt and the chemical composition of the weld metal, appropriate additives and alloys are often added to the thermite.<\/p><div class=\"wp-block-image is-style-rounded\" style=\"max-height: 500px;\"><figure class=\"aligncenter size-large\" style=\"padding: 0px; border: 0px; display: table; max-width: 100%; height: auto;\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-3574\" style=\"box-sizing: border-box; border-radius: 25px 25px 25px 0px; margin-bottom: 20px; contain-intrinsic-size: 3000px 1500px;\" src=\"https:\/\/railroadrails.com\/wp-content\/uploads\/2020\/08\/thermite-welding-for-railroad-track.jpg\" sizes=\"auto, (max-width: 625px) 100vw, 625px\" srcset=\"https:\/\/railroadrails.com\/wp-content\/uploads\/2020\/08\/thermite-welding-for-railroad-track.jpg 625w, https:\/\/railroadrails.com\/wp-content\/uploads\/2020\/08\/thermite-welding-for-railroad-track-300x192.jpg 300w\" alt=\"thermite-welding-for-railroad-track\" width=\"625\" height=\"400\" \/><figcaption class=\"wp-element-caption\" style=\"margin-bottom: 1em; margin-top: 0.5em; font-size: 13px; caption-side: bottom; display: table-caption;\">Thermite welding for railroad track<\/figcaption><\/figure><\/div><h2 class=\"wp-block-heading\" style=\"margin-bottom: 20px; font-family: role; font-size: 32px; font-weight: 400; line-height: 1.2em; text-transform: capitalize; color: #02234e;\">The process of welding railroad rail<\/h2><div class=\"gb-container gb-container-6fdaf21b\" style=\"color: #49586d; font-family: 'Open Sans', sans-serif; font-size: 16px; font-style: normal; font-weight: 400;\"><div class=\"wp-block-image is-style-rounded\" style=\"max-height: 500px;\"><figure class=\"aligncenter size-large\" style=\"padding: 0px; border: 0px; display: table; max-width: 100%; height: auto;\"><img decoding=\"async\" class=\"wp-image-3573 lazyload\" style=\"--smush-placeholder-width: 625px; --smush-placeholder-aspect-ratio: 625\/301;box-sizing: border-box; border-radius: 25px 25px 25px 0px; margin-bottom: 20px; contain-intrinsic-size: 3000px 1500px;\" data-src=\"https:\/\/railroadrails.com\/wp-content\/uploads\/2020\/08\/process-of-welding-railroad-tracks.jpg\" data-sizes=\"auto, (max-width: 625px) 100vw, 625px\" data-srcset=\"https:\/\/railroadrails.com\/wp-content\/uploads\/2020\/08\/process-of-welding-railroad-tracks.jpg 625w, https:\/\/railroadrails.com\/wp-content\/uploads\/2020\/08\/process-of-welding-railroad-tracks-300x144.jpg 300w\" alt=\"process-of-welding-railroad-tracks\" width=\"625\" height=\"301\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" \/><\/figure><\/div><\/div><\/div><div class=\"dynamic-entry-content\"><ol class=\"wp-block-list\" style=\"box-sizing: border-box;\"><li><h3><span style=\"font-weight: bold;\">Preparation<\/span><\/h3><\/li><\/ol><p style=\"margin-bottom: 20px;\"><span style=\"font-weight: bold;\">Equipment and auxiliary material preparation<\/span><br \/>Consuming material: thermite\uff0csand mould\uff0c crucible\uff0c sealing mud, high-temperature matches, grinding wheel, propane, oxygen, hose.<br \/>Auxiliary equipment: mould, slag tray, crucible fork, sand mould fixture, sand mould cover, 1m leaning ruler, rail thermometer, clamping device, crowbar, pre-heat frame, steel wedge.<br \/>Auxiliary machinery: rail saw, polisher, portable grinder, etc.<\/p><p style=\"margin-bottom: 20px;\"><span style=\"font-weight: bold;\">Railroad track preparation<\/span><br \/>Unload the 2-4 pairs of\u00a0<a style=\"transition: color 0.1s ease-in-out, background-color 0.1s ease-in-out; color: #016bf3;\" href=\"https:\/\/railroadrails.com\/otm\/\">rail fasteners<\/a>\u00a0on both sides of welding end.<\/p><div class=\"wp-block-image is-style-rounded\" style=\"max-height: 500px;\"><figure class=\"aligncenter size-large\" style=\"padding: 0px; border: 0px; display: table; max-width: 100%; height: auto;\"><img decoding=\"async\" class=\"wp-image-3572 lazyload\" style=\"--smush-placeholder-width: 625px; --smush-placeholder-aspect-ratio: 625\/300;box-sizing: border-box; border-radius: 25px 25px 25px 0px; margin-bottom: 20px; contain-intrinsic-size: 3000px 1500px;\" data-src=\"https:\/\/railroadrails.com\/wp-content\/uploads\/2020\/08\/equipment-for-welding-railraod-track.jpg\" data-sizes=\"auto, (max-width: 625px) 100vw, 625px\" data-srcset=\"https:\/\/railroadrails.com\/wp-content\/uploads\/2020\/08\/equipment-for-welding-railraod-track.jpg 625w, https:\/\/railroadrails.com\/wp-content\/uploads\/2020\/08\/equipment-for-welding-railraod-track-300x144.jpg 300w\" alt=\"equipment-for-welding-railraod-track\" width=\"625\" height=\"300\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" \/><\/figure><\/div><ol class=\"wp-block-list\" style=\"box-sizing: border-box;\" start=\"2\"><li><h3><span style=\"font-weight: bold;\">Rail end cleaning and drying<\/span><\/h3><br \/>Use the\u00a0<a style=\"transition: color 0.1s ease-in-out, background-color 0.1s ease-in-out; color: #016bf3;\" href=\"https:\/\/www.railgrindingwheel.com\/rail-grinder\/\" target=\"_blank\" rel=\"noreferrer noopener\">portable grinder<\/a>\u00a0to remove rust and decontamination of rail end. Make sure the face of rail ends to be welded is dry and clean.<\/li><li><h3><span style=\"font-weight: bold;\">Rail end alignment<\/span><\/h3><br \/>The width between the rail end face needs to be 27mm-30m. The vertical and horizontal alignment of the railhead, rail web and rail base is required.<\/li><li><h3><span style=\"font-weight: bold;\">Fixture installation<\/span><\/h3><br \/>The fixture should be installed in the upwind direction.<\/li><li><h3><span style=\"font-weight: bold;\">Sand mold installation<\/span><\/h3><br \/>The pouring hole is slightly trimmed to prevent sand particles from falling off during preheating and pouring, resulting in welding slag.<br \/>Install the bottom plate first, then install the side mold, finally use the clamp to fix the sand mould.<\/li><li><h3><span style=\"font-weight: bold;\">Sealing<\/span><\/h3><br \/>Apply sealing mud to the outlet of the sand mold and the thread of the fixture to make the sand mold and the rail tightly sealed.<\/li><li><h3><span style=\"font-weight: bold;\">Preheating<\/span><\/h3><br \/>Firstly, regulate the working pressure of propane and oxygen. Secondly, install the heater on the frame, adjust the nozzle to the center of the sand mold and place the shunt plug on the edge of the sand mold, remove the heater from the support, and ignite the nozzle. Thirdly, regulate the pressure and mixing ratio of propane and oxygen to get the best flame. Finally, preheat for 5 minutes.<\/li><li><h3><span style=\"font-weight: bold;\">Crucible installation<\/span><\/h3><br \/>This step is prepared at the same time as the preheat. Mix the thermite evenly, pour them into the crucible. Insert the high-temperature match and then cover the crucible.<\/li><li><h3><span style=\"font-weight: bold;\">Ignition<\/span><\/h3><br \/>Put the crucible on the sand mold right after the preheating is finished. Verify the position and light the match quickly.<\/li><li><h3><span style=\"font-weight: bold;\">Thermite Reaction<\/span><\/h3><br \/>Observe the chemical reaction. When there comes the open flame, it is the starting time for the thermite reaction. As soon as the flame fades out, the chemical reaction stopped. Normally, the time for thermite reaction is 8-15 seconds.<\/li><li><h3><span style=\"font-weight: bold;\">Demoulding<\/span><\/h3><br \/>Remove the sand mold and the slag tray 5 minutes after the pouring of molten iron.<\/li><li><h3><span style=\"font-weight: bold;\">Cut off excess thermite<\/span><\/h3><br \/>Cut off the extra thermite and bend the ones protruding on both sides of the rail base.<\/li><li><h3><span style=\"font-weight: bold;\">Grinding<\/span><\/h3><br \/>This is the final step of welding railroad rail. This is to make the surface of joined rails flat and smooth.<\/li><\/ol><p style=\"margin-bottom: 20px;\">After the 13 steps are finished, check the welding joints to make sure they are up to the standard. Restore the railroad tracks to its original place. Also, there is still some cleanup job to do. Workers need to take away the dust, slag, scrap, sand mold and the crucible.<\/p><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6e6df0d elementor-post-navigation-borders-yes elementor-widget elementor-widget-post-navigation\" data-id=\"6e6df0d\" data-element_type=\"widget\" data-widget_type=\"post-navigation.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-post-navigation\">\n\t\t\t<div class=\"elementor-post-navigation__prev elementor-post-navigation__link\">\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-post-navigation__separator-wrapper\">\n\t\t\t\t\t<div class=\"elementor-post-navigation__separator\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"elementor-post-navigation__next elementor-post-navigation__link\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Thermit Welding For Railroad Tracks Table of Contents 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 [&hellip;]<\/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":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.9 (Yoast SEO v25.9) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Thermit Welding For Railroad Tracks<\/title>\n<meta name=\"description\" content=\"There are four common methods for welding railroad tracks. 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