{"id":1266,"date":"2021-11-07T10:58:13","date_gmt":"2021-11-07T10:58:13","guid":{"rendered":"https:\/\/heationab.com\/?page_id=1266"},"modified":"2026-03-12T15:56:34","modified_gmt":"2026-03-12T15:56:34","slug":"surface-treatments","status":"publish","type":"page","link":"https:\/\/heationab.com\/sv\/articles\/surface-treatments\/","title":{"rendered":"Ytbehandlingar"},"content":{"rendered":"
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Ytbehandlingar<\/span><\/h1>\n

Alla v\u00e5ra produkter genomg\u00e5r tv\u00e5 ytbehandlingsprocesser. Kulpening och passivering.<\/span><\/p>\n

Kulpening<\/span><\/h2>\n

Kulpeningsbehandlingen kan utf\u00f6ras f\u00f6r att f\u00f6rbereda ytan f\u00f6r efterf\u00f6ljande behandlingar eller bel\u00e4ggningar. Processen kommer att skapa en homogen yta samtidigt som man tar bort ett tunt lager av metall (cirka 1 \u00b5m) och skapar en grov yta som kommer att f\u00f6rb\u00e4ttra vidh\u00e4ftningen av f\u00f6ljande kemiska avs\u00e4ttningsbehandlingar.<\/span><\/p>\n

F\u00f6r f\u00f6rem\u00e5l av rostfritt st\u00e5l, som v\u00e5ra filter, kan det betraktas som en efterbehandling.<\/span><\/p>\n

Kulpening \u00e4r en kall deformationsprocess. Den erh\u00e5lls genom att st\u00f6ta p\u00e5 ytorna med sf\u00e4rer som kan vara metalliska och icke-metalliska. Processm\u00e5let \u00e4r att l\u00e4mna kvarvarande kompressionskrafter i det ytliga lagret av metallen vilket \u00f6kar utmattningsmotst\u00e5ndet.<\/span><\/p>\n

Passivering<\/span><\/h2>\n

Den andra ytbehandlingen som vi till\u00e4mpar p\u00e5 v\u00e5ra filter \u00e4r passivering.<\/span><\/p>\n

Alla v\u00e5ra filter \u00e4r tillverkade i rostfritt st\u00e5l. Namnet h\u00e4nvisar till denna typ av metalls f\u00f6rm\u00e5ga att motst\u00e5 korrosion. Ett skyddande lager bildas p\u00e5 ytan av komponenterna. F\u00f6rm\u00e5gan att bilda skiktet s\u00e4kerst\u00e4lls genom n\u00e4rvaron av krom i legeringen. F\u00f6r att kunna betrakats som rostfritt st\u00e5l m\u00e5ste en j\u00e4rnlegering ha en kromhalt p\u00e5 minst 10,5 %. Kromet skapar ett tunt lager av oxid p\u00e5 ytan som f\u00f6rhindrar ytan fr\u00e5n korrosion.<\/span><\/p>\n

Det \u00e4r dock inte ovanligt att det uppst\u00e5r rost efter en kort tidsperiod.<\/span><\/p>\n

Det kan vara intressant att veta att skyddsskiktet bara \u00e4r n\u00e5gra nanometer tjockt. Efter mekanisk bearbetning och svetsning tenderar sm\u00e5 partiklar och ytor p\u00e5 ytan att ha en h\u00f6g halt av fritt j\u00e4rn och \u00e4r angel\u00e4gna om att korrosion.<\/span><\/p>\n

Passivering \u00e4r en kemisk process som syftar till att minska den kemiska reaktiviteten p\u00e5 dess yta. Namnet syftar p\u00e5 metallens f\u00f6rm\u00e5ga att vara passiv mot den yttre milj\u00f6n, eller mindre reaktiv. Passivering tar bort det fria j\u00e4rnet fr\u00e5n ytan genom att anv\u00e4nda en sur l\u00f6sning. De andra elementen i legeringen, fr\u00e4mst krom och nickel, kommer att reagera p\u00e5 syre i luften och skapa ett lager av oxider som skyddar den underliggande metallen fr\u00e5n att korrodera.<\/span><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div>

<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"Surface treatments All our products undergo two surface treatment processes. Micro shot peening and passivation. Micro shot peening The micro shot-peening treatment can be performed in order to prepare the surface for subsequent treatments or coatings. 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