{"id":5250,"date":"2021-01-19T06:30:38","date_gmt":"2021-01-19T06:30:38","guid":{"rendered":"https:\/\/www.aluminiumceramicfiber.com\/?p=5250"},"modified":"2021-01-19T06:30:38","modified_gmt":"2021-01-19T06:30:38","slug":"aluminium-degassing-system","status":"publish","type":"post","link":"https:\/\/www.aluminiumceramicfiber.com\/id\/aluminium-degassing-system\/","title":{"rendered":"Sistem Penghilangan Gas pada Aluminium"},"content":{"rendered":"

Gas porosity may occur if hydrogen is introduced into the molten metal when it is poured into the mould. Hydrogen can be drawn in through moisture or water vapour in the atmosphere. Aluminium degassing system is used to solve this problem and it is carried out as an important part of the aluminium casting process.<\/p>\n

Porosity takes the form of small pinholes in the casting, which can have a detrimental effect on the mechanical and physical properties of the final product.<\/p>\n

As we have discovered in the past, aluminium is one of the most abundant and widely used metals in industry due to its excellent weight-to-strength ratio. However, it is also a very reactive metal that actively dissolves hydrogen on contact. Hydrogen can be introduced during the casting process in a variety of ways \u2013 through atmospheric humidity, moisture on the pouring ladle or mould, and even in the furnace.<\/p>\n

Hydrogen gas is soluble in aluminium in its molten state. However, as the metal cools and solidifies, the gas can create porosity (pin holes) in the metal casting. The size of these pores varies, depending on the composition of the alloys and the solidification conditions.<\/p>\n

\"Sistem<\/p>\n

Sistem Penghilangan Gas pada Aluminium<\/h2>\n

This problem can be resolved by purging the molten metal with a dry, soluble gas before the pouring stage. The gas reacts with the hydrogen and then dissipates from the molten metal.<\/p>\n

Argon and nitrogen are commonly used to degas metals.<\/p>\n

The process can be carried out using various techniques, including laju degassing<\/a> and static lances. One of the most effective methods is a rotary degassing unit<\/a>.<\/p>\n

This degassing unit looks very similar to a standard paint mixer, with a rotating impeller that introduces nitrogen gas bubbles into the molten metal. The degassing time is dependent on various factors, including the choice of aluminium alloy and the temperature of the molten metal.<\/p>\n

Whatever the variables, our highly experienced engineers ensure the right degassing technique is used for each individual casting project.<\/p>\n

With a wealth of expertise, our foundry engineers provide the full range of casting services.<\/p>","protected":false},"excerpt":{"rendered":"

Gas porosity may occur if hydrogen is introduced into the molten metal when it is poured into the mould. Hydrogen can be drawn in through moisture or water vapour in the atmosphere. Aluminium degassing system is used to solve this problem and it is carried out as an important part of the aluminium casting process. […]<\/p>\n","protected":false},"author":1,"featured_media":5252,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[86],"tags":[],"class_list":["post-5250","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nAluminium Degassing System -sales@aluminiumceramicfiber.com<\/title>\n<meta name=\"description\" content=\"Aluminium degassing system is used to solve the gas porosity and it is carried out as an important part of the aluminium casting process.\" \/>\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.aluminiumceramicfiber.com\/id\/aluminium-degassing-system\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Aluminium Degassing 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