{"id":3268,"date":"2026-09-08T11:43:24","date_gmt":"2026-09-08T03:43:24","guid":{"rendered":"https:\/\/www.adtechaluminum.com\/?p=3268"},"modified":"2026-09-08T11:43:24","modified_gmt":"2026-09-08T03:43:24","slug":"how-to-remove-hydrogen-from-molten-aluminum-before-casting","status":"publish","type":"post","link":"https:\/\/www.adtechaluminum.com\/ru\/how-to-remove-hydrogen-from-molten-aluminum-before-casting\/","title":{"rendered":"How to Remove Hydrogen from Molten Aluminum Before Casting"},"content":{"rendered":"

Hydrogen is the main dissolved gas that causes gas porosity in aluminum castings. Because molten aluminum can dissolve significantly more hydrogen than solid aluminum, excess hydrogen may form pores as the metal solidifies.<\/p>\n

The most common way to remove hydrogen from molten aluminum is rotary degassing with an inert gas<\/strong>, typically argon or nitrogen. The treatment disperses fine gas bubbles through the melt, allowing dissolved hydrogen to transfer from the aluminum into the bubbles and escape from the melt.<\/p>\n

For demanding casting applications, hydrogen removal should be combined with good melting practice, controlled metal transfer, and filtration to maintain overall melt cleanliness.<\/p>\n

\"\u0434\u0435\u0444\u0435\u043a\u0442\u044b
\u0434\u0435\u0444\u0435\u043a\u0442\u044b \u0430\u043b\u044e\u043c\u0438\u043d\u0438\u0435\u0432\u044b\u0445 \u043e\u0442\u043b\u0438\u0432\u043e\u043a<\/em><\/figcaption><\/figure>\n

Why Does Molten Aluminum Contain Hydrogen?<\/h2>\n

Hydrogen enters molten aluminum primarily through moisture.<\/p>\n

Common sources include:<\/p>\n

    \n
  • \u0412\u043b\u0430\u0436\u043d\u043e\u0441\u0442\u044c \u0432 \u0437\u0430\u0440\u044f\u0434\u043d\u044b\u0445 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0430\u0445<\/li>\n
  • Wet scrap or tools<\/li>\n
  • Humidity in the surrounding atmosphere<\/li>\n
  • Moisture in refractories or furnace materials<\/li>\n
  • Improperly dried additions<\/li>\n
  • Turbulent handling of the molten metal<\/li>\n<\/ul>\n

    At high temperature, water vapor can react with molten aluminum and contribute hydrogen to the melt.<\/p>\n

    The problem becomes more important during melting and holding because hydrogen is highly soluble in liquid aluminum compared with solid aluminum.<\/p>\n

    When the metal subsequently solidifies, hydrogen solubility decreases sharply. If the melt contains more hydrogen than the solidifying aluminum can retain, hydrogen can form gas pores inside the casting.<\/p>\n

    What Problems Does Hydrogen Cause in Aluminum Casting?<\/h2>\n

    Excess dissolved hydrogen can contribute to internal porosity.<\/p>\n

    Depending on the casting process and final application, hydrogen-related porosity may result in:<\/p>\n

      \n
    • Lower density<\/li>\n
    • \u0421\u043d\u0438\u0436\u0435\u043d\u0438\u0435 \u043c\u0435\u0445\u0430\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a<\/li>\n
    • \u0412\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u0438\u0435 \u0434\u0435\u0444\u0435\u043a\u0442\u044b<\/li>\n
    • Poor fatigue performance<\/li>\n
    • Machining defects<\/li>\n
    • Reduced pressure tightness<\/li>\n
    • Quality problems during rolling or extrusion<\/li>\n<\/ul>\n

      The effect is particularly important for products that require high internal cleanliness, such as extrusion billet, rolling slab, automotive alloys, and other high-quality wrought aluminum products.<\/p>\n

      However, not every pore in an aluminum casting is caused by hydrogen. Shrinkage, oxide films, solidification conditions, and other process variables can also contribute to porosity.<\/p>\n

      This is why hydrogen measurement should be combined with broader casting-quality analysis.<\/p>\n

      How Is Hydrogen Removed from Molten Aluminum?<\/h2>\n
      \"\u0440\u0430\u0441\u043f\u043b\u0430\u0432\u043b\u0435\u043d\u043d\u044b\u0439
      \u0440\u0430\u0441\u043f\u043b\u0430\u0432\u043b\u0435\u043d\u043d\u044b\u0439 \u0430\u043b\u044e\u043c\u0438\u043d\u0438\u0439 \u0432 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0435 \u0434\u0435\u0433\u0430\u0437\u0430\u0446\u0438\u0438<\/em><\/figcaption><\/figure>\n

      The most widely used industrial method is rotary degassing<\/strong>.<\/p>\n

      During rotary degassing, an inert gas is introduced into the molten aluminum through a rotating graphite or ceramic-coated rotor.<\/p>\n

      The rotor breaks the incoming gas into a large number of bubbles and disperses them through the melt.<\/p>\n

      The basic process is:<\/p>\n

      Inert gas injection \u2192 bubble dispersion \u2192 hydrogen transfer \u2192 bubble flotation \u2192 hydrogen removal<\/strong><\/p>\n

      As the bubbles travel through the aluminum, dissolved hydrogen transfers from the molten metal into the gas phase. The bubbles then rise toward the melt surface and carry the hydrogen out of the metal.<\/p>\n

      The process is based primarily on gas-liquid mass transfer rather than a chemical reaction between hydrogen and the purge gas.<\/p>\n

      Why Does Rotary Degassing Work?<\/h2>\n

      The effectiveness of rotary degassing depends largely on how effectively the purge gas is dispersed.<\/p>\n

      A well-designed rotor creates smaller and more uniformly distributed bubbles, increasing the gas-liquid contact area available for hydrogen transfer.<\/p>\n

      Several factors influence the result:<\/p>\n

      Bubble dispersion<\/h3>\n

      More effective bubble dispersion generally increases contact between the inert gas and molten aluminum.<\/p>\n

      However, simply increasing rotor speed does not always improve degassing. Excessive agitation can create a strong surface vortex and potentially increase oxide entrainment.<\/p>\n

      \u0420\u0430\u0441\u0445\u043e\u0434 \u0433\u0430\u0437\u0430<\/h3>\n

      The gas flow must be matched to the rotor design, treatment volume, and process conditions.<\/p>\n

      Too little gas may provide insufficient treatment, while excessive gas flow can promote bubble coalescence and unstable melt movement.<\/p>\n

      \u041f\u0440\u043e\u0434\u043e\u043b\u0436\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u044c \u043b\u0435\u0447\u0435\u043d\u0438\u044f<\/h3>\n

      The required treatment time depends on melt volume, hydrogen concentration, gas flow, rotor design, and the required final hydrogen level.<\/p>\n

      Therefore, a fixed treatment time should not be treated as a universal value for every aluminum casting line.<\/p>\n

      \u0422\u0435\u043c\u043f\u0435\u0440\u0430\u0442\u0443\u0440\u0430 \u043f\u043b\u0430\u0432\u043b\u0435\u043d\u0438\u044f<\/h3>\n

      Temperature affects hydrogen solubility and the overall treatment process. The melt should be treated within the appropriate temperature range for the alloy and casting process.<\/p>\n

      Which Gas Is Used for Aluminum Degassing?<\/h2>\n
      \"aluminium
      aluminium degassing equipment<\/em><\/figcaption><\/figure>\n

      The most common purge gases are argon and nitrogen<\/strong>.<\/p>\n

      \u0410\u0440\u0433\u043e\u043d<\/h3>\n

      Argon is chemically inert and is widely used for high-quality aluminum melt treatment.<\/p>\n

      It is particularly suitable where contamination control and stable gas-metal interaction are important.<\/p>\n

      \u0410\u0437\u043e\u0442<\/h3>\n

      Nitrogen is also commonly used for aluminum melt degassing and can provide a cost-effective solution for many casting applications.<\/p>\n

      The choice between argon and nitrogen depends on alloy requirements, gas availability, equipment design, and the required melt quality.<\/p>\n

      The most important requirement is that the purge gas and delivery system are properly controlled and sufficiently dry.<\/p>\n

      Can Flux Remove Hydrogen from Molten Aluminum?<\/h2>\n

      Flux treatment and degassing serve different primary purposes.<\/p>\n

      Fluxes are mainly used to modify, separate, or remove certain oxides, inclusions, dross, and other unwanted materials from molten aluminum, depending on the flux formulation.<\/p>\n

      Rotary degassing, on the other hand, is primarily used to reduce dissolved hydrogen.<\/p>\n

      Some aluminum melt treatment systems combine inert gas injection with flux addition. This can provide hydrogen treatment and flux-assisted inclusion or dross treatment within the same process.<\/p>\n

      However, flux treatment should not automatically be considered a substitute for dedicated hydrogen degassing.<\/p>\n

      Does Degassing Remove Inclusions?<\/h2>\n

      Not all inclusions are removed by degassing.<\/p>\n

      Rotary degassing can promote the flotation of some inclusions under suitable conditions, but its primary function is dissolved hydrogen removal.<\/p>\n

      For suspended non-metallic inclusions, filtration is the main downstream separation method<\/strong>.<\/p>\n

      Ceramic foam filters are commonly installed after melt treatment to capture oxide films and other non-metallic inclusions before the metal reaches the casting stage.<\/p>\n

      This means that degassing and filtration should generally be viewed as complementary processes:<\/p>\n

      Degassing \u2192 reduce dissolved hydrogen<\/strong><\/p>\n

      Filtration \u2192 remove suspended non-metallic inclusions<\/strong><\/p>\n

      Using both processes provides more complete molten aluminum treatment than relying on either one alone.<\/p>\n

      Where Should Degassing Take Place?<\/h2>\n

      Hydrogen treatment can be performed as a batch operation or as an online process.<\/p>\n

      \"\u041e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u0435
      \u041e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u0435 \u0434\u043b\u044f \u0434\u0435\u0433\u0430\u0437\u0430\u0446\u0438\u0438<\/figcaption><\/figure>\n

      Batch Degassing<\/h3>\n

      In batch treatment, molten aluminum is treated in a furnace or holding vessel before being transferred to the casting system.<\/p>\n

      This approach can be suitable for smaller production systems or processes where batch treatment is already integrated into the workflow.<\/p>\n

      Online Degassing<\/h3>\n

      Online degassing is performed continuously while molten aluminum moves from the holding furnace toward the casting machine.<\/p>\n

      An online degassing unit<\/strong> is installed directly in the metal transfer line, commonly together with launder and filtration equipment.<\/p>\n

      This configuration can provide continuous hydrogen treatment without requiring the entire melt to stop for a separate batch treatment.<\/p>\n

      For continuous billet, slab, rolling, or other high-throughput casting operations, online treatment can be particularly useful because treatment capacity can be matched to the metal flow rate.<\/p>\n

      Why Is Online Degassing Important for Continuous Casting?<\/h2>\n

      Continuous casting requires stable metal flow and consistent melt quality.<\/p>\n

      If hydrogen treatment is performed only at an early stage, the melt can potentially absorb additional hydrogen during subsequent holding and transfer.<\/p>\n

      An online system provides a treatment stage closer to the casting process.<\/p>\n

      A typical process arrangement may be:<\/p>\n

      Holding furnace \u2192 online degassing \u2192 filtration \u2192 launder\/metal distribution \u2192 casting machine<\/strong><\/p>\n

      The exact equipment sequence depends on the casting line and process design.<\/p>\n

      The online degassing system should be sized according to the actual molten aluminum flow rate rather than selected independently from the casting capacity.<\/p>\n

      How Do You Know Whether Degassing Is Effective?<\/h2>\n

      Visual inspection alone cannot reliably determine dissolved hydrogen content.<\/p>\n

      Aluminum producers may use methods such as:<\/p>\n

        \n
      • Reduced Pressure Test (RPT)<\/li>\n
      • Hydrogen analyzers<\/li>\n
      • Density Index measurements<\/li>\n
      • Other melt-quality monitoring systems<\/li>\n<\/ul>\n

        The appropriate measurement method depends on the required quality level and production process.<\/p>\n

        Monitoring hydrogen before and after treatment is particularly useful when optimizing rotor speed, gas flow, treatment time, and equipment configuration.<\/p>\n

        Instead of choosing treatment parameters based only on standard settings, the goal should be to establish a stable relationship between process parameters and measured melt quality<\/strong>.<\/p>\n

        What Can Cause Poor Degassing Results?<\/h2>\n

        If the hydrogen level remains higher than expected after treatment, several factors should be investigated.<\/p>\n

        Excessive moisture<\/h3>\n

        Wet charge materials, tools, refractories, or gas lines can introduce hydrogen into the melt.<\/p>\n

        Poor gas quality<\/h3>\n

        Moisture or contamination in the purge gas can reduce treatment effectiveness.<\/p>\n

        Inadequate bubble dispersion<\/h3>\n

        Rotor wear, incorrect rotor positioning, or unsuitable gas flow can reduce gas dispersion.<\/p>\n

        \u0427\u0440\u0435\u0437\u043c\u0435\u0440\u043d\u0430\u044f \u0442\u0443\u0440\u0431\u0443\u043b\u0435\u043d\u0442\u043d\u043e\u0441\u0442\u044c<\/h3>\n

        Aggressive agitation can disturb the melt surface and increase oxide entrainment.<\/p>\n

        Insufficient treatment capacity<\/h3>\n

        If the degassing unit is undersized relative to the metal flow rate, the required treatment level may not be achieved consistently.<\/p>\n

        Hydrogen pickup after treatment<\/h3>\n

        Even after successful degassing, the melt can absorb hydrogen again if it remains exposed to moisture or turbulent transfer conditions.<\/p>\n

        For this reason, hydrogen control is not limited to the degassing chamber itself.<\/p>\n

        How Can You Reduce Hydrogen Before Degassing?<\/h2>\n

        The best degassing strategy begins by preventing unnecessary hydrogen pickup.<\/p>\n

        Practical measures include:<\/p>\n

          \n
        1. Keep charge materials dry.<\/li>\n
        2. Preheat tools and materials that contact molten aluminum.<\/li>\n
        3. Maintain dry and properly prepared refractory surfaces.<\/li>\n
        4. Avoid unnecessary turbulence during melting and transfer.<\/li>\n
        5. Keep the melt protected from excessive atmospheric moisture.<\/li>\n
        6. Maintain suitable furnace and holding conditions.<\/li>\n
        7. Use properly controlled inert gas for degassing.<\/li>\n
        8. Monitor hydrogen before and after treatment.<\/li>\n<\/ol>\n

          Reducing hydrogen entering the melt makes the degassing process more stable and reduces the treatment load.<\/p>\n

          How Does Degassing Fit into the Complete Melt Treatment Process?<\/h2>\n

          Hydrogen removal is only one part of aluminum melt treatment.<\/p>\n

          A typical high-quality casting process may combine several stages:<\/p>\n

          Melting \u2192 alloying \u2192 temperature control \u2192 degassing \u2192 filtration \u2192 controlled transfer \u2192 casting<\/strong><\/p>\n

          Each stage has a different purpose.<\/p>\n

            \n
          • Melting:<\/strong> converts charge materials into liquid aluminum.<\/li>\n
          • Alloying:<\/strong> adjusts chemical composition.<\/li>\n
          • Degassing:<\/strong> reduces dissolved hydrogen.<\/li>\n
          • Filtration:<\/strong> removes suspended non-metallic inclusions.<\/li>\n
          • Controlled transfer:<\/strong> limits reoxidation, turbulence, and temperature loss.<\/li>\n
          • Casting:<\/strong> solidifies the treated metal into the required product.<\/li>\n<\/ul>\n

            No single piece of equipment can correct every melt-quality problem.<\/p>\n

            For example, a more powerful filter cannot compensate for excessive hydrogen, while a more aggressive degassing process cannot replace effective inclusion filtration.<\/p>\n

            What Hydrogen Level Should Aluminum Casting Aim For?<\/h2>\n

            There is no single hydrogen target that applies to every aluminum alloy and casting process.<\/p>\n

            The required level depends on:<\/p>\n

              \n
            • Alloy composition<\/li>\n
            • \u041c\u0435\u0442\u043e\u0434 \u043b\u0438\u0442\u044c\u044f<\/li>\n
            • Product geometry<\/li>\n
            • \u0423\u0441\u043b\u043e\u0432\u0438\u044f \u0437\u0430\u0442\u0432\u0435\u0440\u0434\u0435\u0432\u0430\u043d\u0438\u044f<\/li>\n
            • Downstream processing<\/li>\n
            • Internal cleanliness requirements<\/li>\n
            • Customer specifications<\/li>\n<\/ul>\n

              High-quality rolling, foil, aerospace, automotive, and other demanding applications may require tighter melt-quality control than general foundry casting.<\/p>\n

              Therefore, hydrogen targets should be established according to the final product specification and verified through appropriate measurement rather than applying one universal number to every casting process.<\/p>\n

              \u0417\u0430\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435<\/h2>\n

              Removing hydrogen from molten aluminum is primarily a mass-transfer process using dispersed inert-gas bubbles<\/strong>.<\/p>\n

              Rotary degassing provides an effective way to transfer dissolved hydrogen from the melt into the purge gas. Its performance depends on bubble dispersion, gas flow, treatment time, temperature, rotor condition, melt volume, and the prevention of hydrogen pickup.<\/p>\n

              For continuous aluminum casting, online degassing can integrate hydrogen treatment directly into the molten-metal transfer line. When combined with appropriate filtration, temperature control, and controlled metal transfer, it forms an important part of a complete molten aluminum treatment system.<\/p>\n

              The most reliable approach is not simply to increase degassing intensity, but to control the entire path from melting to casting and verify melt quality with appropriate measurements.<\/p>\n

              \u0427\u0430\u0441\u0442\u043e \u0437\u0430\u0434\u0430\u0432\u0430\u0435\u043c\u044b\u0435 \u0432\u043e\u043f\u0440\u043e\u0441\u044b<\/h2>\n
              \n1. What is the best way to remove hydrogen from molten aluminum?<\/summary>\n

              Rotary degassing with argon or nitrogen is the most widely used industrial method.<\/p>\n<\/details>\n

              \n2. Does degassing remove aluminum oxide inclusions?<\/summary>\n

              Its primary purpose is hydrogen removal. Filtration is normally used for more reliable removal of suspended non-metallic inclusions.<\/p>\n<\/details>\n

              \n3. Is argon better than nitrogen for aluminum degassing?<\/summary>\n

              Both can be used. The appropriate gas depends on alloy requirements, gas quality, equipment design, and production conditions.<\/p>\n<\/details>\n

              \n4. Can flux remove hydrogen from aluminum?<\/summary>\n

              Flux treatment and degassing have different primary functions. Flux is mainly used for melt cleaning and dross\/inclusion treatment, while inert-gas degassing targets dissolved hydrogen.<\/p>\n<\/details>\n

              \n5. What causes hydrogen in molten aluminum?<\/summary>\n

              Moisture is the main source, including moisture associated with charge materials, tools, refractories, and the surrounding atmosphere.<\/p>\n<\/details>\n

              \n6. Can hydrogen come back after degassing?<\/summary>\n

              Yes. Molten aluminum can absorb hydrogen again if it is exposed to moisture during holding or transfer.<\/p>\n<\/details>\n

              \n7. How is hydrogen measured in molten aluminum?<\/summary>\n

              Methods such as Reduced Pressure Testing and dedicated hydrogen analyzers can be used to evaluate dissolved hydrogen.<\/p>\n<\/details>\n

              \n8. What is online aluminum degassing?<\/summary>\n

              It is continuous degassing performed while molten aluminum flows from the holding furnace toward the casting machine.<\/p>\n<\/details>\n

              \n9. Does a ceramic foam filter remove hydrogen?<\/summary>\n

              No. A ceramic foam filter is primarily used to remove suspended non-metallic inclusions rather than dissolved hydrogen.<\/p>\n<\/details>\n

              \n10. Why combine degassing and filtration?<\/summary>\n

              Degassing reduces dissolved hydrogen, while filtration removes suspended inclusions. Together they address two major aspects of molten aluminum cleanliness.<\/p>\n<\/details>","protected":false},"excerpt":{"rendered":"

              Hydrogen is the main dissolved gas that causes gas porosity in aluminum castings. Because molten aluminum can dissolve significantly more […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_eb_attr":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","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":"var(--ast-global-color-4)","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":[1],"tags":[],"class_list":["post-3268","post","type-post","status-publish","format-standard","hentry","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.adtechaluminum.com\/ru\/wp-json\/wp\/v2\/posts\/3268","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.adtechaluminum.com\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.adtechaluminum.com\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.adtechaluminum.com\/ru\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.adtechaluminum.com\/ru\/wp-json\/wp\/v2\/comments?post=3268"}],"version-history":[{"count":1,"href":"https:\/\/www.adtechaluminum.com\/ru\/wp-json\/wp\/v2\/posts\/3268\/revisions"}],"predecessor-version":[{"id":3273,"href":"https:\/\/www.adtechaluminum.com\/ru\/wp-json\/wp\/v2\/posts\/3268\/revisions\/3273"}],"wp:attachment":[{"href":"https:\/\/www.adtechaluminum.com\/ru\/wp-json\/wp\/v2\/media?parent=3268"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.adtechaluminum.com\/ru\/wp-json\/wp\/v2\/categories?post=3268"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.adtechaluminum.com\/ru\/wp-json\/wp\/v2\/tags?post=3268"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}