{"id":1358,"date":"2020-06-16T08:58:12","date_gmt":"2020-06-16T08:58:12","guid":{"rendered":"https:\/\/aluminiumceramicfiber.com\/?p=1358"},"modified":"2020-10-30T07:43:23","modified_gmt":"2020-10-30T07:43:23","slug":"degassing-aluminium","status":"publish","type":"post","link":"https:\/\/www.aluminiumceramicfiber.com\/ar\/degassing-aluminium\/","title":{"rendered":"\u0625\u0632\u0627\u0644\u0629 \u0627\u0644\u063a\u0627\u0632\u0627\u062a \u0645\u0646 \u0627\u0644\u0623\u0644\u0648\u0645\u0646\u064a\u0648\u0645"},"content":{"rendered":"<p>The degassing aluminium method commonly used in the smelting process of aluminum and aluminum alloys is the partial pressure degassing method. In order to obtain the aluminum melt with low gas content, on the one hand, it is necessary to prepare materials carefully, strictly control the temperature, melt quickly, and adopt measures to reduce the inhalation such as covering agent. On the other hand, it is necessary to carry out effective degassing refining in the late stage of smelting, so as to reduce the gas dissolved in the metal to the lowest possible level. There are three ways to remove the gas from the metal: First, the gas atoms diffuse to the metal surface, and then escape from the adsorption state. Second, it is discharged from the metal melt in the form of bubbles. The third is to form a compound with elements added to the metal and remove it in the form of non-metallic inclusions. After proper degassing treatment by <a href=\"https:\/\/www.aluminiumceramicfiber.com\/ar\/portfolio\/degassing-unit\/\">\u0648\u062d\u062f\u0629 \u0625\u0632\u0627\u0644\u0629 \u0627\u0644\u063a\u0627\u0632\u0627\u062a \u0639\u0628\u0631 \u0627\u0644\u0625\u0646\u062a\u0631\u0646\u062a<\/a>, the gas content of the aluminum melt is greatly reduced.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-2312\" src=\"https:\/\/aluminiumceramicfiber.com\/wp-content\/uploads\/2020\/06\/Degassing-Aluminium.jpg\" alt=\"\u0625\u0632\u0627\u0644\u0629 \u0627\u0644\u063a\u0627\u0632\u0627\u062a \u0645\u0646 \u0627\u0644\u0623\u0644\u0648\u0645\u0646\u064a\u0648\u0645\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2020\/06\/Degassing-Aluminium.jpg 500w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2020\/06\/Degassing-Aluminium-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 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\">\u062c\u062f\u0648\u0644 \u0627\u0644\u0645\u062d\u062a\u0648\u064a\u0627\u062a<\/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;\">\u062a\u0628\u062f\u064a\u0644<\/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\/ar\/degassing-aluminium\/#Degassing_Aluminium_Principle_and_Method\" >Degassing Aluminium Principle and Method<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.aluminiumceramicfiber.com\/ar\/degassing-aluminium\/#Principle_of_partial_pressure_degassing\" >Principle of partial pressure degassing<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Degassing_Aluminium_Principle_and_Method\"><\/span>Degassing Aluminium Principle and Method<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The degassing refining method commonly used in the smelting process of aluminum and aluminum alloys is the partial pressure degassing method.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Principle_of_partial_pressure_degassing\"><\/span>Principle of partial pressure degassing<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>When the gas is dissolved in the aluminum melt and removed from the aluminum melt, the two processes reach equilibrium at a certain temperature and pressure. From the thermodynamic analysis, when the partial pressure of hydrogen in the gas P1 is greater than the partial pressure of hydrogen in the metal P2 At this time, the gas dissolves into the metal; when P1 is less than P2, the gas is removed from the metal. Therefore, placing the melted metal melt in a vacuum with a low hydrogen partial pressure, or introducing an inert gas into the melt, provides the driving force for dehydrogenation. In industrial production, usually inert gas (N, Ar) is passed into the melt.<\/p>\n<p>Since the inside of the bubble is completely free of hydrogen, that is, the partial pressure of hydrogen in the bubble is 0, and the partial pressure of hydrogen in the melt around the bubble far greater than 0. Under the effect of the hydrogen partial pressure difference between the inside and outside of the bubble, the dissolved hydrogen atoms diffuse to the melt-bubble interface, where they recombine as hydrogen molecules into the bubble, and then float up with the bubble to escape from the melt surface. This process will proceed until the partial pressures of hydrogen inside and outside the bubble are equal, that is, in equilibrium. Studies have shown that increasing the area of \u200b\u200bthe contact interface between the melt and inert bubbles, it will facilitate the removal of dissolved gases.<\/p>\n<p>The gases used in the partial pressure degassing method include inert gas, active gas, and mixed gas. In addition, there is a method of adding solid flux powder to the refining gas and flux degassing.<\/p>","protected":false},"excerpt":{"rendered":"<p>The degassing aluminium method commonly used in the smelting process of aluminum and aluminum alloys is the partial pressure degassing method. In order to obtain the aluminum melt with low gas content, on the one hand, it is necessary to prepare materials carefully, strictly control the temperature, melt quickly, and adopt measures to reduce the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2312,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[86],"tags":[5825,5795,5828,5831,5830,5832,5829,5794,5788,5789,5824,5793,5799,5798,5797,5801,5804,5805,5806,5803,5802,5807,5808,5811,5812,5809,5810,5827,5826,5813,5814,5816,5815,5817,5822,5818,5821,5819,5823,5820,5792,5833,5834,5796,5791,5800,5790],"class_list":["post-1358","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-degassing-aluminium-alcom-aluminum-malaysia","tag-degassing-aluminium-aluminium-indonesia","tag-degassing-aluminium-aluminium-malaysia","tag-degassing-aluminium-aluminium-malaysia-berhad","tag-degassing-aluminium-aluminium-malaysia-price","tag-degassing-aluminium-aluminium-malaysia-product","tag-degassing-aluminium-aluminium-malaysia-supplier","tag-degassing-aluminium-aluminum-die-casting-indonesia","tag-degassing-aluminium-aluminum-indonesia","tag-degassing-aluminium-aluminum-indonesia-jakarta","tag-degassing-aluminium-aluminum-malaysia","tag-degassing-aluminium-aluminum-smelter-indonesia","tag-degassing-aluminium-daiki-aluminium-indonesia","tag-degassing-aluminium-hyundai-aluminium-indonesia","tag-degassing-aluminium-il-sogno-aluminium-indonesia","tag-degassing-aluminium-indonesia-aluminium","tag-degassing-aluminium-indonesia-aluminium-foil","tag-degassing-aluminium-indonesia-aluminium-industry","tag-degassing-aluminium-indonesia-aluminium-ingot","tag-degassing-aluminium-indonesia-aluminium-production","tag-degassing-aluminium-indonesia-aluminium-smelter","tag-degassing-aluminium-indonesia-aluminum","tag-degassing-aluminium-indonesia-aluminum-company","tag-degassing-aluminium-indonesia-aluminum-ingot","tag-degassing-aluminium-indonesia-aluminum-production","tag-degassing-aluminium-indonesia-aluminum-smelter","tag-degassing-aluminium-indonesia-aluminum-supplier","tag-degassing-aluminium-kamco-aluminum-malaysia","tag-degassing-aluminium-lb-aluminum-malaysia","tag-degassing-aluminium-malaysia-aluminium","tag-degassing-aluminium-malaysia-aluminium-alloy","tag-degassing-aluminium-malaysia-aluminium-scrap","tag-degassing-aluminium-malaysia-aluminium-smelter","tag-degassing-aluminium-malaysia-aluminum","tag-degassing-aluminium-malaysia-aluminum-alloy","tag-degassing-aluminium-malaysia-aluminum-company","tag-degassing-aluminium-malaysia-aluminum-foil","tag-degassing-aluminium-malaysia-aluminum-ingot","tag-degassing-aluminium-malaysia-aluminum-manufacturer","tag-degassing-aluminium-malaysia-aluminum-smelter","tag-degassing-aluminium-nanshan-aluminum-indonesia","tag-degassing-aluminium-pa-aluminium-malaysia","tag-degassing-aluminium-pmb-aluminium-malaysia","tag-degassing-aluminium-pt-daiki-aluminium-indonesia","tag-degassing-aluminium-showa-aluminum-indonesia","tag-degassing-aluminium-xinfa-aluminium-indonesia","tag-degassing-aluminium-ykk-aluminum-indonesia"],"yoast_head":"<!-- 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