{"id":11459,"date":"2021-11-25T09:20:28","date_gmt":"2021-11-25T09:20:28","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=11459"},"modified":"2021-11-25T09:20:28","modified_gmt":"2021-11-25T09:20:28","slug":"aluminium-liquid-degasser","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/ar\/aluminium-liquid-degasser\/","title":{"rendered":"Aluminium Liquid Degasser"},"content":{"rendered":"

In the rotary method of the aluminium liquid degasser, an inert or chemically inactive gas (Argon, Nitrogen) is purged through a rotary shaft and a rotor.<\/p>\n

The energy of the rotating shaft causes the formation of a large number of fine bubbles offering a very high surface\/volume ratio.<\/p>\n

The large specific surface area promotes rapid and efficient diffusion of hydrogen into gas bubbles, which helps to equalize the activity of hydrogen in the liquid and gas phases.<\/p>\n

The online degassing unit adopts advanced high silicon melting technology to achieve long service life, degassing rotor, heating protection lug and thermocouple protection lug adopt manufacturing technology of ceramic which can meet the requirements of high precision aluminum production.<\/p>\n

\u0627\u0644\u0640 \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>\u00a0should be installed between the furnace and the casting equipment. It is used for the removal of hydrogen (H) and slag from molten aluminum. The online degassing unit has a dual function: treatment and heating. It serves the high precision molten aluminum purification industry.<\/p>\n

The aluminium liquid degasser is based on the principle that dissolved hydrogen gas will move from an area of \u200b\u200bhigh concentration (in the melt) to an area of \u200b\u200blow concentration (in the inert gas).
\nThe hydrogen gas disperses in the molten metal as it would if released in a confined space.
\nIt will maintain a constant concentration throughout the fusion.
\nHydrogen gas can migrate through liquid metal almost as quickly as through the air.<\/p>\n

Sources of hydrogen in molten aluminum:
\natmospheric humidity
\nwet metal filler
\nwet furnace lining (crucible, transfer pockets)
\nwet foundry instruments
\nwet streams and other consumables
\nfurnace fuel combustion products containing hydrogen<\/p>\n

Therefore, it is not necessary to put every ounce of metal in contact with the inert gas. The efficiency of aluminum degassing is determined by two factors, the rate of transfer through the metal\/gas interface and the total surface area available for the transfer.<\/p>","protected":false},"excerpt":{"rendered":"

In the rotary method of the aluminium liquid degasser, an inert or chemically inactive gas (Argon, Nitrogen) is purged through a rotary shaft and a…<\/p>","protected":false},"author":1,"featured_media":11460,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-11459","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nAluminium Liquid Degasser -sales@alalloycasting.com<\/title>\n<meta name=\"description\" content=\"The aluminium liquid degasser principle is that dissolved hydrogen gas will move from an area of \u200b\u200bhigh concentration to \u200b\u200blow concentration.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.alalloycasting.com\/ar\/aluminium-liquid-degasser\/\" \/>\n<meta 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