{"id":5576,"date":"2026-08-03T06:38:41","date_gmt":"2026-08-03T06:38:41","guid":{"rendered":"https:\/\/kilnroller.com\/?p=5576"},"modified":"2026-08-03T06:38:45","modified_gmt":"2026-08-03T06:38:45","slug":"u-shaped-radiant-tube-core-component-for-indirect-heating-in-industrial-furnaces","status":"publish","type":"post","link":"https:\/\/kilnroller.com\/zh\/u-shaped-radiant-tube-core-component-for-indirect-heating-in-industrial-furnaces\/","title":{"rendered":"U \u578b\u8f90\u5c04\u7ba1\uff5c\u5de5\u4e1a\u7089\u95f4\u63a5\u52a0\u70ed\u6838\u5fc3\u90e8\u4ef6"},"content":{"rendered":"<h2 class=\"wp-block-heading\">\u4ea7\u54c1\u6982\u8ff0<\/h2>\n\n\n\n<p>U \u578b\u8f90\u5c04\u7ba1\u662f\u70ed\u5904\u7406\u5de5\u4e1a\u7089\u4e3b\u6d41\u95f4\u63a5\u52a0\u70ed\u88c5\u7f6e\uff0c\u53c8\u79f0\u53cc\u901a\u9053\u8f90\u5c04\u7ba1\u3002\u71c3\u70e7\u5668\u4e0e\u6392\u70df\u53e3\u540c\u4fa7\u5e03\u7f6e\u4e8e\u7089\u5899\u4e00\u7aef\uff0c\u70df\u6c14\u6cbf\u7ba1\u9053\u524d\u884c\uff0c\u7ecf\u672b\u7aef U \u578b\u5f2f\u5934\u6298\u8fd4\u56de\u6d41\uff0c\u4f9d\u9760\u7ba1\u58c1\u7ea2\u5916\u8f90\u5c04\u5411\u7089\u819b\u8f93\u9001\u70ed\u91cf\u3002<\/p>\n\n\n\n<p>\u8f90\u5c04\u7ba1\u9694\u7edd\u706b\u7130\u3001\u71c3\u70e7\u70df\u6c14\u4e0e\u5de5\u4ef6\uff0c\u4fdd\u62a4\u7089\u5185\u53ef\u63a7\u6c14\u6c1b\uff0c\u907f\u514d\u5de5\u4ef6\u6c27\u5316\u3001\u8131\u78b3\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5404\u7c7b\u71c3\u6c14\u70ed\u5904\u7406\u7089\uff0c\u662f\u8fde\u7eed\u9000\u706b\u7089\u3001\u7bb1\u5f0f\u6e17\u78b3\u7089\u3001\u53f0\u8f66\u7089\u6807\u914d\u52a0\u70ed\u5143\u4ef6\u3002<\/p>\n\n\n\n<p><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/kilnroller.com\/wp-content\/uploads\/2026\/08\/206cff9328559eedd57a06ef01c49943-1024x768.jpg\" alt=\"\" class=\"wp-image-5577\" style=\"width:384px;height:auto\" srcset=\"https:\/\/kilnroller.com\/wp-content\/uploads\/2026\/08\/206cff9328559eedd57a06ef01c49943-1024x768.jpg 1024w, https:\/\/kilnroller.com\/wp-content\/uploads\/2026\/08\/206cff9328559eedd57a06ef01c49943-300x225.jpg 300w, https:\/\/kilnroller.com\/wp-content\/uploads\/2026\/08\/206cff9328559eedd57a06ef01c49943-768x576.jpg 768w, https:\/\/kilnroller.com\/wp-content\/uploads\/2026\/08\/206cff9328559eedd57a06ef01c49943-1536x1152.jpg 1536w, https:\/\/kilnroller.com\/wp-content\/uploads\/2026\/08\/206cff9328559eedd57a06ef01c49943-2048x1536.jpg 2048w, https:\/\/kilnroller.com\/wp-content\/uploads\/2026\/08\/206cff9328559eedd57a06ef01c49943-16x12.jpg 16w, https:\/\/kilnroller.com\/wp-content\/uploads\/2026\/08\/206cff9328559eedd57a06ef01c49943-600x450.jpg 600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5de5\u4f5c\u539f\u7406<\/h2>\n\n\n\n<p>\u71c3\u6c14\u5728\u8f90\u5c04\u7ba1\u5185\u90e8\u5145\u5206\u71c3\u70e7\uff0c\u9ad8\u6e29\u70df\u6c14\u6cbf\u7b2c\u4e00\u901a\u9053\u62b5\u8fbe\u7089\u4f53\u6df1\u5904\uff0c\u901a\u8fc7 180\u00b0U \u578b\u5f2f\u6298\u8fd4\uff0c\u6cbf\u5e73\u884c\u652f\u7ba1\u56de\u6d41\u6392\u51fa\u3002\u56de\u6d41\u9ad8\u6e29\u70df\u6c14\u53ef\u9884\u70ed\u8fdb\u6c14\uff0c\u63d0\u5347\u70ed\u80fd\u5229\u7528\u7387\uff1b\u76f8\u6bd4\u76f4\u7ba1\u8f90\u5c04\u7ba1\uff0c\u6709\u6548\u7f29\u5c0f\u7ba1\u9053\u8f74\u5411\u6e29\u5dee\uff0c\u7089\u819b\u6e29\u5ea6\u5206\u5e03\u66f4\u52a0\u5747\u8861\u3002<\/p>\n\n\n\n<p>\u70ed\u91cf\u901a\u8fc7\u91d1\u5c5e\u7ba1\u58c1\u4ee5\u70ed\u8f90\u5c04\u65b9\u5f0f\u4f20\u9012\u81f3\u5de5\u4ef6\uff0c\u7089\u5185\u5de5\u827a\u6c14\u6c1b\u4e0e\u71c3\u70e7\u7cfb\u7edf\u5b8c\u5168\u9694\u79bb\uff0c\u4fdd\u969c\u70ed\u5904\u7406\u5de5\u827a\u7a33\u5b9a\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6838\u5fc3\u4f18\u52bf<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1.\u5b89\u88c5\u7ef4\u62a4\u4fbf\u6377<\/h3>\n\n\n\n<p>The burner and exhaust ends are concentrated on the same furnace wall, eliminating the need for openings on both sides and resulting in superior furnace sealing; maintenance and replacement of radiant tubes can be performed without entering the furnace chamber, significantly reducing downtime.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2.Excellent temperature uniformity<\/h3>\n\n\n\n<p>The dual-channel, U-turn structure mitigates unidirectional temperature gradients, reduces the temperature differential between the furnace&#8217;s high- and low-temperature zones, effectively eliminates heating dead spots, and ensures consistent heat treatment quality across batches of workpieces.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3.Higher thermal efficiency<\/h3>\n\n\n\n<p>The recirculating flue gas undergoes continuous heat exchange, fully recovering waste heat; under identical operating conditions, energy consumption is superior to that of traditional straight radiant tubes.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4.Suitable for various atmospheric conditions<\/h3>\n\n\n\n<p>Constructed from heat-resistant alloy, the material offers excellent resistance to oxidation, carburization, and sulfur corrosion, making it suitable for complex furnace environments involving nitrogen, endothermic atmospheres, and protective atmospheres.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5.Flexible structure; supports non-standard customization<\/h3>\n\n\n\n<p>Pipe diameter, total length, bending radius, and flange connections can all be customized to suit various furnace layouts, including batch furnaces, continuous mesh-belt furnaces, and roller-hearth furnaces.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Selection of Mainstream Materials and Applicable Operating Conditions<\/h2>\n\n\n\n<p>Material solutions can be tailored based on the customer&#8217;s operating temperature, furnace atmosphere, and start-stop frequency.<\/p>\n\n\n\n<p><strong>1.ZG40Cr25Ni20Si2 (HK alloy)<\/strong><\/p>\n\n\n\n<p>Long-term operating temperature: \u22641150\u00b0C<\/p>\n\n\n\n<p>Features: Manufactured via centrifugal casting, resulting in a dense microstructure; offers creep and carburization resistance. Suitable for carburizing and annealing furnaces; a widely used, mainstream material in the market.<\/p>\n\n\n\n<p><strong>2.310S (0Cr25Ni20) Weldable Grade<\/strong><\/p>\n\n\n\n<p>Long-term operating temperature: \u22641050\u00b0C<\/p>\n\n\n\n<p>Features: Short processing cycle, high cost-performance ratio; suitable for medium-to-low temperature tempering furnaces and bright annealing furnaces.<\/p>\n\n\n\n<p><strong>3.ZG45Ni48Cr28W5Si2<\/strong><\/p>\n\n\n\n<p>Long-term operating temperature: \u22641250\u00b0C<\/p>\n\n\n\n<p>Features: High nickel-chromium alloy offering resistance to high-temperature corrosion and thermal shock; the preferred choice for demanding high-temperature operating conditions involving frequent start-stop cycles.<\/p>\n\n\n\n<p><strong>4.FeCrAl alloy<\/strong><\/p>\n\n\n\n<p>Suitable for oxidizing atmospheres at medium-to-high temperatures; offers outstanding oxidation resistance and significant cost advantages.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Typical application areas<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Steel Industry: Continuous annealing furnaces for steel strips, hot-dip galvanizing lines, and solution treatment furnaces for steel plates.<\/li>\n\n\n\n<li>Mechanical Heat Treatment: Gear carburizing furnaces, bogie-hearth quenching furnaces, bearing tempering furnaces, and box-type controlled-atmosphere furnaces.<\/li>\n\n\n\n<li>Metallurgical Sintering: Powder metallurgy sintering furnaces, ceramic roller kilns<\/li>\n\n\n\n<li>Non-ferrous metals: Bright heat treatment furnaces for aluminum and copper materials<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Key Technical Parameters (Non-standard specifications supported)<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Common outer diameters: \u03a680mm\u2013\u03a6250mm<\/li>\n\n\n\n<li>Pipe wall thickness: 6\u201312 mm (cast); 3\u20136 mm (welded)<\/li>\n\n\n\n<li>Effective length per unit: \u22644000 mm<\/li>\n\n\n\n<li>Permissible operating temperature: 800\u00b0C\u20131250\u00b0C<\/li>\n\n\n\n<li>Connection types: Flanged connection or direct plug-in; compatible with various domestic and international burners.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Our Custom Services<\/h2>\n\n\n\n<p>1.Provide material selection proposals based on furnace dimensions, furnace chamber temperature, and atmospheric conditions;<\/p>\n\n\n\n<p>2.Customizable U-bend radius, total length, flange dimensions, and mounting brackets;<\/p>\n\n\n\n<p>3.The surface can be coated with a high-temperature radiative coating to enhance radiative heat transfer efficiency;<\/p>\n\n\n\n<p>4.One-stop supply of matching radiant tube supports and sealing assemblies;<\/p>\n\n\n\n<p>5.Direct factory production; supports manufacturing based on drawings and sample prototyping; factory-conducted flaw detection testing is available.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u7ed3\u8bed<\/h2>\n\n\n\n<p>For heat treatment production lines aiming for process stability and reduced operation and maintenance costs, U-shaped radiant tubes have become the preferred heating solution for many furnace manufacturers, thanks to their ease of installation, balanced temperature control, and high reliability.<\/p>\n\n\n\n<p>Whether you are upgrading an existing furnace or building a new heat treatment production line, please provide parameters such as furnace temperature, atmosphere, and chamber dimensions, and we will match you with the most suitable U-shaped radiant tube solution.<\/p>\n\n    <div class=\"xs_social_share_widget xs_share_url after_content \t\tmain_content  wslu-style-1 wslu-share-box-shaped wslu-fill-colored wslu-none wslu-share-horizontal wslu-theme-font-no wslu-main_content\">\n\n\t\t\n        <ul>\n\t\t\t        <\/ul>\n    <\/div>","protected":false},"excerpt":{"rendered":"<p>Product Overview The U-shaped radiant tube\u2014also known as a dual-pass radiant tube\u2014is a mainstream indirect heating device for industrial heat treatment furnaces. The burner and exhaust outlet are positioned on the same side of the furnace wall; flue gas travels along the tube, reverses direction at the U-shaped bend at<\/p>","protected":false},"author":1,"featured_media":5577,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[50,49],"tags":[28,51,53,64],"class_list":["post-5576","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-galvanized","category-metallurgy","tag-factory","tag-galvanized","tag-radiant-tube","tag-u-type-radiant-tube"],"_links":{"self":[{"href":"https:\/\/kilnroller.com\/zh\/wp-json\/wp\/v2\/posts\/5576","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kilnroller.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kilnroller.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kilnroller.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kilnroller.com\/zh\/wp-json\/wp\/v2\/comments?post=5576"}],"version-history":[{"count":1,"href":"https:\/\/kilnroller.com\/zh\/wp-json\/wp\/v2\/posts\/5576\/revisions"}],"predecessor-version":[{"id":5578,"href":"https:\/\/kilnroller.com\/zh\/wp-json\/wp\/v2\/posts\/5576\/revisions\/5578"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kilnroller.com\/zh\/wp-json\/wp\/v2\/media\/5577"}],"wp:attachment":[{"href":"https:\/\/kilnroller.com\/zh\/wp-json\/wp\/v2\/media?parent=5576"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kilnroller.com\/zh\/wp-json\/wp\/v2\/categories?post=5576"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kilnroller.com\/zh\/wp-json\/wp\/v2\/tags?post=5576"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}