{"id":9635,"date":"2026-09-01T09:19:53","date_gmt":"2026-09-01T09:19:53","guid":{"rendered":"https:\/\/www.aluminiumceramicfiber.com\/"},"modified":"2026-09-01T09:19:53","modified_gmt":"2026-09-01T09:19:53","slug":"improving-molten-aluminum-quality-with-degassing-a-practical-case-from-guangyin-aluminum","status":"publish","type":"post","link":"https:\/\/www.aluminiumceramicfiber.com\/id\/improving-molten-aluminum-quality-with-degassing-a-practical-case-from-guangyin-aluminum\/","title":{"rendered":"Improving Molten Aluminum Quality With Degassing: A Practical Case From Guangyin Aluminum"},"content":{"rendered":"<p class=\"isSelectedEnd\">For aluminum casting operations, melt quality has a direct influence on casting performance and final product consistency. Among the factors that need to be controlled before casting, dissolved hydrogen is particularly important because excess hydrogen can contribute to gas porosity during solidification.<\/p>\n<p class=\"isSelectedEnd\">This makes <strong>penghilangan gas dari aluminium cair<\/strong> an important part of aluminum melt treatment.<\/p>\n<p class=\"isSelectedEnd\">A recent project at <strong>Gansu Guangyin Aluminum Co., Ltd.<\/strong> provides a practical example of how degassing equipment can be integrated into an industrial aluminum production process. AdTech Metallurgical Materials Co., Ltd. supplied a tilting-type degassing system for the project and provided on-site installation, commissioning, process adaptation, and operator training before the equipment entered production.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-9642\" src=\"https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/7734_iejWaeWa.webp\" alt=\"\" width=\"1080\" height=\"1920\" srcset=\"https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/7734_iejWaeWa.webp 1080w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/7734_iejWaeWa-169x300.webp 169w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/7734_iejWaeWa-576x1024.webp 576w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/7734_iejWaeWa-768x1365.webp 768w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/7734_iejWaeWa-864x1536.webp 864w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/7734_iejWaeWa-7x12.webp 7w\" sizes=\"auto, (max-width: 1080px) 100vw, 1080px\" \/><\/p>\n<p style=\"text-align: center;\" data-start=\"2234\" data-end=\"2419\"><a style=\"background-color: #fff3c4; display: inline-block; padding: 12px 28px; border-radius: 30px; color: #7a5a2a; text-decoration: none; font-size: 18px; font-weight: bold; text-align: center; border: 1px solid #E6D3A1;\" href=\"https:\/\/www.adtechaluminum.com\/contact\/\" target=\"_blank\" rel=\"noopener\">Contact Us to O<strong><span class=\"\">ptimize Your Production Line.<\/span><\/strong><\/a><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Daftar Isi<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Beralih<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.aluminiumceramicfiber.com\/id\/improving-molten-aluminum-quality-with-degassing-a-practical-case-from-guangyin-aluminum\/#Why_Is_Degassing_Important_for_Molten_Aluminum\" >Why Is Degassing Important for Molten Aluminum?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.aluminiumceramicfiber.com\/id\/improving-molten-aluminum-quality-with-degassing-a-practical-case-from-guangyin-aluminum\/#How_Does_Degassing_Fit_Into_Aluminum_Melt_Treatment\" >How Does Degassing Fit Into Aluminum Melt Treatment?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.aluminiumceramicfiber.com\/id\/improving-molten-aluminum-quality-with-degassing-a-practical-case-from-guangyin-aluminum\/#What_Happens_During_Molten_Aluminum_Degassing\" >What Happens During Molten Aluminum Degassing?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.aluminiumceramicfiber.com\/id\/improving-molten-aluminum-quality-with-degassing-a-practical-case-from-guangyin-aluminum\/#Guangyin_Aluminum_Applying_Degassing_Equipment_in_Actual_Production\" >Guangyin Aluminum: Applying Degassing Equipment in Actual Production<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.aluminiumceramicfiber.com\/id\/improving-molten-aluminum-quality-with-degassing-a-practical-case-from-guangyin-aluminum\/#Why_Does_On-Site_Commissioning_Matter\" >Why Does On-Site Commissioning Matter?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.aluminiumceramicfiber.com\/id\/improving-molten-aluminum-quality-with-degassing-a-practical-case-from-guangyin-aluminum\/#What_Were_the_Results_of_the_Guangyin_Aluminum_Project\" >What Were the Results of the Guangyin Aluminum Project?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.aluminiumceramicfiber.com\/id\/improving-molten-aluminum-quality-with-degassing-a-practical-case-from-guangyin-aluminum\/#Can_Degassing_Alone_Remove_All_Aluminum_Melt_Impurities\" >Can Degassing Alone Remove All Aluminum Melt Impurities?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.aluminiumceramicfiber.com\/id\/improving-molten-aluminum-quality-with-degassing-a-practical-case-from-guangyin-aluminum\/#How_Can_Aluminum_Producers_Improve_Degassing_Performance\" >How Can Aluminum Producers Improve Degassing Performance?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.aluminiumceramicfiber.com\/id\/improving-molten-aluminum-quality-with-degassing-a-practical-case-from-guangyin-aluminum\/#Melt_temperature\" >Melt temperature<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.aluminiumceramicfiber.com\/id\/improving-molten-aluminum-quality-with-degassing-a-practical-case-from-guangyin-aluminum\/#Treatment_time\" >Waktu perawatan<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.aluminiumceramicfiber.com\/id\/improving-molten-aluminum-quality-with-degassing-a-practical-case-from-guangyin-aluminum\/#Gas_flow\" >Gas flow<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.aluminiumceramicfiber.com\/id\/improving-molten-aluminum-quality-with-degassing-a-practical-case-from-guangyin-aluminum\/#Rotor_condition\" >Rotor condition<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.aluminiumceramicfiber.com\/id\/improving-molten-aluminum-quality-with-degassing-a-practical-case-from-guangyin-aluminum\/#Melt_handling\" >Melt handling<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.aluminiumceramicfiber.com\/id\/improving-molten-aluminum-quality-with-degassing-a-practical-case-from-guangyin-aluminum\/#What_Does_This_Project_Show_About_Aluminum_Degassing\" >What Does This Project Show About Aluminum Degassing?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.aluminiumceramicfiber.com\/id\/improving-molten-aluminum-quality-with-degassing-a-practical-case-from-guangyin-aluminum\/#Degassing_and_Filtration_Two_Different_Jobs\" >Degassing and Filtration: Two Different Jobs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.aluminiumceramicfiber.com\/id\/improving-molten-aluminum-quality-with-degassing-a-practical-case-from-guangyin-aluminum\/#Conclusion\" >Kesimpulan<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Why_Is_Degassing_Important_for_Molten_Aluminum\"><\/span>Why Is Degassing Important for Molten Aluminum?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">Hydrogen can dissolve into molten aluminum during melting and subsequent handling. Its solubility decreases as the metal cools and solidifies. When the melt contains excessive dissolved hydrogen, hydrogen can form gas pores during solidification.<\/p>\n<p class=\"isSelectedEnd\">Porosity can affect the internal quality of aluminum cast products and, depending on the application, may influence mechanical performance, machining behavior, surface quality, or downstream processing.<\/p>\n<p class=\"isSelectedEnd\">Degassing is therefore used to reduce dissolved hydrogen before casting.<\/p>\n<p class=\"isSelectedEnd\">The principle is relatively straightforward: an inert gas is introduced into the molten aluminum, creating bubbles that provide a pathway for dissolved hydrogen to transfer out of the melt.<\/p>\n<p class=\"isSelectedEnd\">Rotary degassing is one commonly used industrial approach. A rotating rotor disperses the inert gas into the melt, increasing gas-metal contact and promoting hydrogen removal.<\/p>\n<p class=\"isSelectedEnd\">However, the final result depends on more than the degassing principle itself. Melt temperature, treatment time, gas flow, rotor speed, rotor design, melt depth, alloy composition, and equipment configuration can all influence treatment performance.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-9640\" src=\"https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/6171_baduT4EB.webp\" alt=\"\" width=\"1279\" height=\"1706\" srcset=\"https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/6171_baduT4EB.webp 1279w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/6171_baduT4EB-225x300.webp 225w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/6171_baduT4EB-768x1024.webp 768w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/6171_baduT4EB-1152x1536.webp 1152w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/6171_baduT4EB-9x12.webp 9w\" sizes=\"auto, (max-width: 1279px) 100vw, 1279px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_Does_Degassing_Fit_Into_Aluminum_Melt_Treatment\"><\/span>How Does Degassing Fit Into Aluminum Melt Treatment?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">Degassing should be viewed as one stage of a broader melt treatment process rather than a complete purification solution by itself.<\/p>\n<p class=\"isSelectedEnd\">A typical process may include:<\/p>\n<p class=\"isSelectedEnd\"><strong>Melting \u2192 Furnace Treatment \u2192 Degassing \u2192 Inclusion Separation \u2192 Filtration \u2192 Casting<\/strong><\/p>\n<p class=\"isSelectedEnd\">Each stage has a different purpose.<\/p>\n<table>\n<tbody>\n<tr>\n<th>Treatment<\/th>\n<th>Main Purpose<\/th>\n<\/tr>\n<tr>\n<td>Perlakuan dengan tungku<\/td>\n<td>Prepare and condition the melt<\/td>\n<\/tr>\n<tr>\n<td>Perlakuan fluks<\/td>\n<td>Help manage dross and certain melt contaminants<\/td>\n<\/tr>\n<tr>\n<td>Penghilangan Gas<\/td>\n<td>Reduce dissolved hydrogen<\/td>\n<\/tr>\n<tr>\n<td>Settling\/skimming<\/td>\n<td>Separate floated contaminants<\/td>\n<\/tr>\n<tr>\n<td>Penyaringan busa keramik<\/td>\n<td>Remove suspended non-metallic inclusions<\/td>\n<\/tr>\n<tr>\n<td>Filtrasi lapisan dalam<\/td>\n<td>Provide high-level inclusion filtration<\/td>\n<\/tr>\n<tr>\n<td>Pemilihan Pemain<\/td>\n<td>Solidify the treated metal into the required product<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"isSelectedEnd\">This distinction is important when troubleshooting casting defects.<\/p>\n<p class=\"isSelectedEnd\">If hydrogen-related porosity is the main concern, improving filtration alone will not address the root cause. Conversely, if oxide inclusions are the main problem, degassing alone cannot replace an effective filtration system.<\/p>\n<p class=\"isSelectedEnd\">In demanding aluminum casting applications, <strong>degassing and filtration are often complementary rather than competing technologies<\/strong>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-9641\" src=\"https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/8708_4WfdpNyn.webp\" alt=\"\" width=\"1706\" height=\"1279\" srcset=\"https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/8708_4WfdpNyn.webp 1706w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/8708_4WfdpNyn-300x225.webp 300w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/8708_4WfdpNyn-1024x768.webp 1024w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/8708_4WfdpNyn-768x576.webp 768w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/8708_4WfdpNyn-1536x1152.webp 1536w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/8708_4WfdpNyn-16x12.webp 16w\" sizes=\"auto, (max-width: 1706px) 100vw, 1706px\" \/><\/p>\n<h2><\/h2>\n<h2><span class=\"ez-toc-section\" id=\"What_Happens_During_Molten_Aluminum_Degassing\"><\/span>What Happens During Molten Aluminum Degassing?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">During a typical rotary degassing process, an inert gas is introduced through a rotor immersed in the molten aluminum.<\/p>\n<p class=\"isSelectedEnd\">The rotor disperses the gas into numerous bubbles. Dissolved hydrogen moves from the molten aluminum into these bubbles, which then rise toward the surface.<\/p>\n<p class=\"isSelectedEnd\">The basic process can be represented as:<\/p>\n<p class=\"isSelectedEnd\"><strong>Inert Gas Injection \u2192 Bubble Dispersion \u2192 Hydrogen Transfer \u2192 Bubble Rise \u2192 Hydrogen Removal<\/strong><\/p>\n<p class=\"isSelectedEnd\">The quality of this process depends heavily on bubble behavior.<\/p>\n<p class=\"isSelectedEnd\">Large bubbles provide less effective gas-metal contact than a well-dispersed population of smaller bubbles. Rotor design, rotation speed, gas flow, immersion depth, and melt conditions therefore need to be considered when setting up the process.<\/p>\n<p class=\"isSelectedEnd\">For this reason, an aluminum degassing system should be selected according to the actual production process rather than treated as a standalone machine with one fixed operating recipe.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Guangyin_Aluminum_Applying_Degassing_Equipment_in_Actual_Production\"><\/span>Guangyin Aluminum: Applying Degassing Equipment in Actual Production<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">At Gansu Guangyin Aluminum, AdTech supplied a <strong>tilting-type degassing system<\/strong> for integration into the customer&#8217;s aluminum melt treatment process.<\/p>\n<p class=\"isSelectedEnd\">The project did not end with equipment delivery. AdTech&#8217;s technical team traveled to the customer&#8217;s facility to complete the installation and commissioning work under actual production conditions.<\/p>\n<p class=\"isSelectedEnd\">The main activities included:<\/p>\n<ul data-spread=\"false\">\n<li>Equipment positioning and installation<\/li>\n<li>Pipeline connections<\/li>\n<li>Operating parameter configuration<\/li>\n<li>Equipment and interlock testing<\/li>\n<li>Trial operation<\/li>\n<li>Process adaptation<\/li>\n<li>Pelatihan operator<\/li>\n<li>Routine maintenance training<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">Working directly with the customer&#8217;s production and equipment personnel allowed the engineering team to verify the system under actual site conditions.<\/p>\n<p class=\"isSelectedEnd\">This is particularly important for melt treatment equipment because the installation environment and production process can vary from one aluminum plant to another.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-9639\" src=\"https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/1310_LZhi4VmQ-1.webp\" alt=\"\" width=\"1702\" height=\"1276\" srcset=\"https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/1310_LZhi4VmQ-1.webp 1702w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/1310_LZhi4VmQ-1-300x225.webp 300w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/1310_LZhi4VmQ-1-1024x768.webp 1024w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/1310_LZhi4VmQ-1-768x576.webp 768w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/1310_LZhi4VmQ-1-1536x1152.webp 1536w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/1310_LZhi4VmQ-1-16x12.webp 16w\" sizes=\"auto, (max-width: 1702px) 100vw, 1702px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Why_Does_On-Site_Commissioning_Matter\"><\/span>Why Does On-Site Commissioning Matter?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">A degassing system may have the correct technical specifications on paper but still require adjustment after installation.<\/p>\n<p class=\"isSelectedEnd\">Actual production conditions can affect the treatment process. For example, the melt volume, metal depth, treatment time, gas flow, rotor position, and surrounding equipment may differ from the assumptions made during initial system planning.<\/p>\n<p class=\"isSelectedEnd\">On-site commissioning provides an opportunity to check these factors together.<\/p>\n<p class=\"isSelectedEnd\">For the Guangyin Aluminum project, AdTech&#8217;s engineers carried out equipment testing and parameter configuration after installation, followed by trial operation and process verification.<\/p>\n<p class=\"isSelectedEnd\">The team also addressed site-specific requirements during commissioning and provided practical training for the customer&#8217;s operators.<\/p>\n<p class=\"isSelectedEnd\">This approach helps ensure that the equipment is not only installed correctly but is also ready to be used as part of the customer&#8217;s regular production process.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_Were_the_Results_of_the_Guangyin_Aluminum_Project\"><\/span>What Were the Results of the Guangyin Aluminum Project?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">Following installation and commissioning, the tilting degassing equipment completed its initial trial run successfully and was put into production.<\/p>\n<p class=\"isSelectedEnd\">During the trial operation, the equipment operated with stable parameters, and its performance indicators met the requirements specified in the project contract.<\/p>\n<p class=\"isSelectedEnd\">The successful production start-up demonstrated that the degassing system could be integrated into the customer&#8217;s actual aluminum melt treatment process.<\/p>\n<p class=\"isSelectedEnd\">The project also gave the customer&#8217;s operators hands-on experience with equipment operation and maintenance, helping establish the procedures required for continued production.<\/p>\n<div id=\"attachment_9637\" style=\"width: 1712px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-9637\" class=\"size-full wp-image-9637\" src=\"https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/1310_LZhi4VmQ.webp\" alt=\"Guangyin Aluminum Project\" width=\"1702\" height=\"1276\" srcset=\"https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/1310_LZhi4VmQ.webp 1702w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/1310_LZhi4VmQ-300x225.webp 300w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/1310_LZhi4VmQ-1024x768.webp 1024w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/1310_LZhi4VmQ-768x576.webp 768w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/1310_LZhi4VmQ-1536x1152.webp 1536w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/1310_LZhi4VmQ-16x12.webp 16w\" sizes=\"auto, (max-width: 1702px) 100vw, 1702px\" \/><p id=\"caption-attachment-9637\" class=\"wp-caption-text\"><em>Guangyin Aluminum Project<\/em><\/p><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Can_Degassing_Alone_Remove_All_Aluminum_Melt_Impurities\"><\/span>Can Degassing Alone Remove All Aluminum Melt Impurities?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">No.<\/p>\n<p class=\"isSelectedEnd\">This is an important distinction when selecting aluminum melt treatment equipment.<\/p>\n<p class=\"isSelectedEnd\"><strong>Degassing primarily addresses dissolved gas, especially hydrogen.<\/strong><\/p>\n<p class=\"isSelectedEnd\">It does not replace a dedicated filtration system for removing solid non-metallic inclusions.<\/p>\n<p class=\"isSelectedEnd\">Molten aluminum can contain oxide films, dross particles, refractory fragments, and other non-metallic contaminants. These materials require separation or filtration.<\/p>\n<p class=\"isSelectedEnd\">For this reason, a production line may use a combination such as:<\/p>\n<p class=\"isSelectedEnd\"><strong>Rotary Degassing \u2192 Ceramic Foam Filtration \u2192 Casting<\/strong><\/p>\n<p class=\"isSelectedEnd\">In other applications, particularly high-throughput casting operations requiring very high melt cleanliness, a deep-bed filtration system may be considered.<\/p>\n<p class=\"isSelectedEnd\">The appropriate combination depends on the alloy, charge materials, production rate, casting method, and required final quality.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_Can_Aluminum_Producers_Improve_Degassing_Performance\"><\/span>How Can Aluminum Producers Improve Degassing Performance?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">Installing degassing equipment is only the first step. Consistent results require appropriate process control.<\/p>\n<p class=\"isSelectedEnd\">Important factors include:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Melt_temperature\"><\/span>Melt temperature<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p class=\"isSelectedEnd\">Degassing should be carried out within an appropriate temperature range for the alloy and production process. Excessive temperature can increase hydrogen absorption and oxidation, while insufficient temperature can affect melt handling and treatment conditions.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Treatment_time\"><\/span>Waktu perawatan<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p class=\"isSelectedEnd\">The melt needs sufficient treatment time for hydrogen transfer to occur. Excessively short treatment may result in inadequate degassing, while unnecessarily long treatment can reduce production efficiency.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Gas_flow\"><\/span>Gas flow<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p class=\"isSelectedEnd\">Gas flow should be controlled according to the equipment and melt conditions. Excessive gas flow does not automatically mean better degassing and may increase turbulence.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Rotor_condition\"><\/span>Rotor condition<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p class=\"isSelectedEnd\">The rotor is a critical component of a rotary degassing system. Its condition, immersion depth, rotation behavior, and gas distribution all influence bubble dispersion.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Melt_handling\"><\/span>Melt handling<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p class=\"isSelectedEnd\">Even after successful degassing, excessive turbulence or poor melt handling can allow the aluminum to pick up hydrogen or generate additional oxide films.<\/p>\n<p class=\"isSelectedEnd\">This is why melt quality needs to be controlled throughout the process rather than only at the degassing stage.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-9636\" src=\"https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/8797_Ur26pCgC.webp\" alt=\"\" width=\"1920\" height=\"1080\" srcset=\"https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/8797_Ur26pCgC.webp 1920w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/8797_Ur26pCgC-300x169.webp 300w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/8797_Ur26pCgC-1024x576.webp 1024w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/8797_Ur26pCgC-768x432.webp 768w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/8797_Ur26pCgC-1536x864.webp 1536w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2026\/09\/8797_Ur26pCgC-18x10.webp 18w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_Does_This_Project_Show_About_Aluminum_Degassing\"><\/span>What Does This Project Show About Aluminum Degassing?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">The Guangyin Aluminum project demonstrates that successful molten aluminum degassing involves more than equipment selection.<\/p>\n<p class=\"isSelectedEnd\">A reliable solution requires the equipment to be properly integrated into the production line, commissioned under actual operating conditions, and used according to appropriate process parameters.<\/p>\n<p class=\"isSelectedEnd\">The project followed this approach from installation through production start-up:<\/p>\n<p class=\"isSelectedEnd\"><strong>Equipment Supply \u2192 On-Site Installation \u2192 Parameter Configuration \u2192 Commissioning \u2192 Trial Operation \u2192 Operator Training \u2192 Production<\/strong><\/p>\n<p class=\"isSelectedEnd\">The tilting degassing equipment subsequently entered production with stable operating parameters and performance meeting the project&#8217;s design requirements.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Degassing_and_Filtration_Two_Different_Jobs\"><\/span>Degassing and Filtration: Two Different Jobs<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">For aluminum producers evaluating a complete melt purification system, it is useful to separate the functions of degassing and filtration.<\/p>\n<table>\n<tbody>\n<tr>\n<th>Masalah<\/th>\n<th>Preferred Treatment<\/th>\n<\/tr>\n<tr>\n<td>Hidrogen terlarut<\/td>\n<td>Penghilangan Gas<\/td>\n<\/tr>\n<tr>\n<td>Hydrogen-related porosity<\/td>\n<td>Degassing + process control<\/td>\n<\/tr>\n<tr>\n<td>Inklusi oksida<\/td>\n<td>Penyaringan<\/td>\n<\/tr>\n<tr>\n<td>Dross<\/td>\n<td>Furnace treatment + skimming<\/td>\n<\/tr>\n<tr>\n<td>Fine non-metallic inclusions<\/td>\n<td>Fine\/deep-bed filtration<\/td>\n<\/tr>\n<tr>\n<td>Overall melt cleanliness<\/td>\n<td>Combined melt treatment<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"isSelectedEnd\">This functional approach is more useful than asking which individual technology is \u201cthe best.\u201d<\/p>\n<p class=\"isSelectedEnd\">For many casting operations, a combination of <strong>degassing followed by filtration<\/strong> provides a practical way to address both dissolved hydrogen and suspended inclusions before the metal reaches the casting stage.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Kesimpulan<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">Controlling molten aluminum quality requires more than one treatment step. Dissolved hydrogen and solid inclusions have different characteristics and therefore require different removal methods.<\/p>\n<p class=\"isSelectedEnd\"><strong>Molten aluminum degassing<\/strong> is primarily used to reduce dissolved hydrogen and help control hydrogen-related casting defects, while filtration technologies such as ceramic foam filters are used to remove non-metallic inclusions.<\/p>\n<p class=\"isSelectedEnd\">The successful application of AdTech&#8217;s tilting degassing equipment at Gansu Guangyin Aluminum demonstrates how a degassing system can be integrated into an industrial aluminum production process through proper installation, commissioning, process adaptation, and operator training.<\/p>\n<p class=\"isSelectedEnd\">For aluminum producers evaluating a new degassing system, the most important consideration is not simply the equipment itself, but how well the system matches the <strong>alloy, melt volume, casting process, treatment requirements, and existing production line<\/strong>.<\/p>\n<p>AdTech provides aluminum melt treatment solutions and technical support for aluminum producers seeking more controlled and consistent molten aluminum treatment.<\/p>","protected":false},"excerpt":{"rendered":"<p>For aluminum casting operations, melt quality has a direct influence on casting performance and final product consistency. Among the factors that need to be controlled before casting, dissolved hydrogen is particularly important because excess hydrogen can contribute to gas porosity during solidification. This makes molten aluminum degassing an important part of aluminum melt treatment. A [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":9636,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-9635","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Molten Aluminum Degassing: Improving Casting Quality | AdTech<\/title>\n<meta name=\"description\" content=\"How AdTech&#039;s degassing equipment was applied at Guangyin Aluminum to support molten aluminum treatment and more consistent casting quality.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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