{"id":972,"date":"2025-09-08T16:01:29","date_gmt":"2025-09-08T14:01:29","guid":{"rendered":"https:\/\/aludex.com\/?post_type=knowledge_center&#038;p=972"},"modified":"2026-01-23T11:42:06","modified_gmt":"2026-01-23T10:42:06","slug":"wat-is-aluminium","status":"publish","type":"knowledge_center","link":"https:\/\/aludex.com\/nl\/knowledge_center\/wat-is-aluminium\/","title":{"rendered":"Wat is aluminium?"},"content":{"rendered":"\r\n<p class=\"wp-block-paragraph\">Aluminium is een zilverwit, lichtgewicht metaal met het chemisch symbool Al en atoomnummer 13. Het is ongeveer drie keer lichter dan staal, met een dichtheid van circa 2,7 gram per kubieke centimeter. Ondanks dit lichte gewicht heeft aluminium een verrassend hoge sterkte, vooral in legeringsvormen, waardoor het in veel toepassingen als sterk en duurzaam materiaal wordt gebruikt.<\/p>\r\n<p>Aluminium wordt hoofdzakelijk gewonnen uit het mineraal bauxiet, dat voor een groot deel uit aluminiumoxide bestaat. De productie van aluminium uit bauxiet gebeurt in twee belangrijke stappen: eerst wordt alumina (aluminiumoxide) gewonnen uit bauxiet via het Bayer-proces. Vervolgens wordt in het Hall-H\u00e9roult-proces deze alumina elektrolytisch gereduceerd tot zuiver aluminium. Dit proces vereist veel elektrische energie. Het resulterende aluminium is zuiver maar relatief zacht, waardoor het vaak wordt gelegeerd met andere metalen zoals koper, magnesium of mangaan om sterkte en andere eigenschappen te verbeteren.<\/p>\r\n<p>Dit metaal is bovendien zeer goed bewerkbaar, vormbaar en recyclebaar, wat het veelzijdig inzetbaar maakt in sectoren zoals bouw, transport, verpakkingen en elektronica. Dankzij zijn combinatie van lichtheid, sterkte, corrosiebestendigheid en geleiding is aluminium een populair materiaal in bijvoorbeeld de luchtvaart, autoproductie, bouwmaterialen, elektrische bedrading en zelfs decoratieve toepassingen. De oxidelaag op het oppervlak beschermt het tegen roest en kan zichzelf herstellen als het beschadigd raakt, wat aluminium extra duurzaam maakt.\u200b<\/p>\r\n","protected":false},"excerpt":{"rendered":"<p>Aluminium is een zilverwit, lichtgewicht metaal met het chemisch symbool Al en atoomnummer 13. Het is ongeveer drie keer lichter dan staal, met een dichtheid van circa 2,7 gram per kubieke centimeter. Ondanks dit lichte gewicht heeft aluminium een verrassend hoge sterkte, vooral in legeringsvormen, waardoor het in veel toepassingen als sterk en duurzaam materiaal wordt gebruikt.<\/p>\n","protected":false},"featured_media":1279,"template":"","meta":{"_acf_changed":false,"itsec_x_frame_options":""},"kc_category":[56],"class_list":["post-972","knowledge_center","type-knowledge_center","status-publish","has-post-thumbnail","hentry","kc_category-algemeen","entry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Wat is aluminium? | ALUDEX<\/title>\n<meta name=\"description\" content=\"Ontdek wat aluminium is: een licht, sterk en recyclebaar metaal met unieke eigenschappen en brede toepassingen. 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