{"id":18187,"date":"2025-03-16T05:01:27","date_gmt":"2025-03-16T05:01:27","guid":{"rendered":"https:\/\/aludiecasting.com\/?p=18187"},"modified":"2025-03-16T05:01:27","modified_gmt":"2025-03-16T05:01:27","slug":"stopbare-aluminiumslegeringer","status":"publish","type":"post","link":"https:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/","title":{"rendered":"St\u00f8pbare aluminiumlegeringer: Sammensetning, egenskaper og bruksomr\u00e5der forklart"},"content":{"rendered":"<p>St\u00f8pbare aluminiumlegeringer har ulike mekaniske egenskaper. Vanlige typer inkluderer A356, A357 og A380. Varmebehandlinger som T6 forbedrer styrken. De brukes i bilindustrien, romfart og generell ingeni\u00f8rvirksomhet. Viktige egenskaper er strekkfasthet, forlengelse og hardhet. Valg av legering avhenger av bruksomr\u00e5det.<\/p>\n<p>I denne artikkelen f\u00e5r du grunnleggende kunnskap om ulike typer st\u00f8pbare aluminiumslegeringer.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 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\">Innholdsfortegnelse<\/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=\"Veksle mellom innholdsfortegnelsen\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #7c7c7c;color:#7c7c7c\" 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: #7c7c7c;color:#7c7c7c\" 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:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#Overview_of_Castable_Aluminum_Alloys\" >Oversikt over st\u00f8pbare aluminiumslegeringer<\/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:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#Definition_and_Importance\" >Definisjon og betydning<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#Composition_and_Properties_of_Castable_Aluminum_Alloys\" >Sammensetning og egenskaper til st\u00f8pbare aluminiumslegeringer<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#Alloy_Composition\" >Legeringens sammensetning<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#Role_of_Trace_Elements\" >Sporelementenes rolle<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#Microscopic_Structure_and_Composition\" >Mikroskopisk struktur og sammensetning<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#Mechanical_and_Physical_Properties\" >Mekaniske og fysiske egenskaper<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#Strength_and_Ductility\" >Styrke og duktilitet:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#Corrosion_Resistance\" >Motstandsdyktighet mot korrosjon<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#Thermal_and_Electrical_Conductivity\" >Termisk og elektrisk ledningsevne<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#Impact_of_Heat_Treatment\" >Effekten av varmebehandling<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#Common_Aluminum_Alloy_Grades\" >Vanlige kvaliteter av aluminiumslegeringer<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#A380\" >A380<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#A356\" >A356<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#6061\" >6061<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#ADC12\" >ADC12<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#LM25\" >LM25<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#LM6\" >LM6<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#5200\" >520.0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#319\" >319<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#413\" >413<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#535\" >535<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#Casting_Processes_for_Aluminum_Alloys\" >St\u00f8peprosesser for aluminiumslegeringer<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#Die_Casting\" >Pressst\u00f8ping<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#Sand_Casting\" >Sandst\u00f8ping<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#Investment_Casting\" >Investeringsst\u00f8ping<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#Challenges_and_Solutions_in_Aluminum_Casting\" >Utfordringer og l\u00f8sninger innen aluminiumst\u00f8ping<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#Casting_Defects\" >St\u00f8pefeil<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#Alloy_Selection\" >Valg av legering<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#Heat_Treatment_Challenges\" >Utfordringer med varmebehandling<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/aludiecasting.com\/nb\/stopbare-aluminiumslegeringer\/#Conclusion\" >Konklusjon<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Overview_of_Castable_Aluminum_Alloys\"><\/span>Oversikt over st\u00f8pbare aluminiumslegeringer<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Definition_and_Importance\"><\/span>Definisjon og betydning<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Det finnes mange legeringer for st\u00f8ping. Noen av disse er aluminiumslegeringer. Aluminium inneholder en blanding av andre grunnstoffer (for eksempel magnesium eller silisium). Det produserer sine forskjellige legeringer.<\/p>\n<p>Aluminium smelter ved temperaturer p\u00e5 rundt 660 \u00b0C. Den smeltede formen mates deretter inn i st\u00f8peformen for \u00e5 f\u00e5 en profilform.<\/p>\n<p>P\u00e5 grunn av den lavere vekten, med en tetthet p\u00e5 2,7 g\/cm\u00b3, er disse legeringene tre ganger lettere enn st\u00e5l. Dette er grunnen til at de egner seg til mange bruksomr\u00e5der. For eksempel biler, fly og maskiner.<\/p>\n<p>De er ogs\u00e5 korrosjonsbestandige og kan formes i alle mulige former, samtidig som de er sterke.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Composition_and_Properties_of_Castable_Aluminum_Alloys\"><\/span>Sammensetning og egenskaper til st\u00f8pbare aluminiumslegeringer<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<table class=\"x1mwwwfo x1gukg7c x1n2onr6 x140o2bo x1bl4301\">\n<thead>\n<tr>\n<th class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xljulmy x7wzq59 x13vifvy xpeg176 x1b1u5bx x95da8x x18qtup9 xz9dl7a xn6708d xsag5q8 x1ye3gou\">Legeringsbetegnelse<\/th>\n<th class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xljulmy x7wzq59 x13vifvy xpeg176 x1b1u5bx x95da8x x18qtup9 xz9dl7a xn6708d xsag5q8 x1ye3gou\">Sammensetning (wt%)<\/th>\n<th class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xljulmy x7wzq59 x13vifvy xpeg176 x1b1u5bx x95da8x x18qtup9 xz9dl7a xn6708d xsag5q8 x1ye3gou\">Tetthet (g\/cm\u00b3)<\/th>\n<th class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xljulmy x7wzq59 x13vifvy xpeg176 x1b1u5bx x95da8x x18qtup9 xz9dl7a xn6708d xsag5q8 x1ye3gou\">Strekkfasthet (MPa)<\/th>\n<th class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xljulmy x7wzq59 x13vifvy xpeg176 x1b1u5bx x95da8x x18qtup9 xz9dl7a xn6708d xsag5q8 x1ye3gou\">Strekkfasthet (MPa)<\/th>\n<th class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xljulmy x7wzq59 x13vifvy xpeg176 x1b1u5bx x95da8x x18qtup9 xz9dl7a xn6708d xsag5q8 x1ye3gou\">Forlengelse (%)<\/th>\n<th class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xljulmy x7wzq59 x13vifvy xpeg176 x1b1u5bx x95da8x x18qtup9 xz9dl7a xn6708d xsag5q8 x1ye3gou\">Motstandsdyktighet mot korrosjon<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">A356<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">Al-7Si-0,3Mg<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">2.68<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">310-380<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">180-220<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">6-8<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">Bra<\/td>\n<\/tr>\n<tr>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">A357<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">Al-7Si-0,5Mg<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">2.68<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">360-420<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">240-280<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">6-8<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">Bra<\/td>\n<\/tr>\n<tr>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">319<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">Al-6Si-4Cu<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">2.79<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">240-300<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">140-180<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">2-4<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">Rimelig<\/td>\n<\/tr>\n<tr>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">413<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">Al-12Si-1Cu<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">2.67<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">230-280<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">130-170<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">2-4<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">Rimelig<\/td>\n<\/tr>\n<tr>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">A413<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">Al-12Si-1Cu-0,5Mg<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">2.67<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">260-310<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">160-200<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">2-4<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">Rimelig<\/td>\n<\/tr>\n<tr>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">535<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">Al-6Si-2Mg-0,5Cu<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">2.65<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">290-350<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">180-230<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">6-8<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">Bra<\/td>\n<\/tr>\n<tr>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">713<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">Al-7Si-1Cu-0,5Mg<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">2.72<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">300-360<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">200-250<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">6-8<\/td>\n<td class=\"x8cjs6t x1ch86jh x80vd3b xckqwgs x13fuv20 xu3j5b3 x1q0q8m5 x26u7qi x178xt8z xm81vs4 xso031l xy80clv x1mzt3pk xt4736n x1havqas x1f0sm9e x12qp5cl xz9dl7a xn6708d xsag5q8 x1ye3gou\">Bra<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"Alloy_Composition\"><\/span>Legeringens sammensetning<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Dannelsen av st\u00f8pbare aluminiumlegeringer inkluderer sammensetningen av mange elementer. Aluminium kan for eksempel inneholde silisium (5-12%), magnesium (0,2-10%), kobber (1-4%) eller sink (1-3%).<\/p>\n<p><a href=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/output-1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-18189 size-large\" src=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/output-1-1024x610.png\" alt=\"forlengelse av st\u00f8pbare aluminiumslegeringer\" width=\"1024\" height=\"610\" title=\"\" srcset=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/output-1-980x584.png 980w, https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/output-1-480x286.png 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1024px, 100vw\" \/><\/a><\/p>\n<p>Silisium smelter ved 577 \u00b0C, noe som gj\u00f8r at det fyller formene bedre. Samtidig bidrar magnesium til \u00e5 \u00f8ke styrken ved at det danner fine utfellinger. Kobberet utvikler hardhet.<\/p>\n<p>For eksempel er det 8-10% silisium og 3-4% kobber i legering A380. Det er derfor de har h\u00f8y flyteevne og sprer seg over form\u00e5pninger s\u00e5 smale som 0,1 mm.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Role_of_Trace_Elements\"><\/span>Sporelementenes rolle<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Sm\u00e5 mengder jern (&lt;1%) forhindrer at st\u00f8peformene kleber seg fast, og mangan (0,5%) forbedrer korrosjonsbestandigheten.<\/p>\n<p>Ved st\u00f8ping av aluminiumslegeringer unng\u00e5r man at st\u00f8peformen kleber seg, rett og slett p\u00e5 grunn av sm\u00e5 mengder sporelementer som jern (&lt;1%).<\/p>\n<p>P\u00e5 samme m\u00e5te motst\u00e5r de korrosjon godt og har mindre kornst\u00f8rrelser p\u00e5 grunn av henholdsvis mangan (0,5%) og titan (0,2%). Det f\u00f8rer ogs\u00e5 til f\u00e6rre sprekker.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Microscopic_Structure_and_Composition\"><\/span>Mikroskopisk struktur og sammensetning<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/composition-of-castable-alloys.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-18190 size-large\" src=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/composition-of-castable-alloys-1024x1024.jpg\" alt=\"sammensetning av st\u00f8pbare aluminiumslegeringer\" width=\"1024\" height=\"1024\" title=\"\" srcset=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/composition-of-castable-alloys-1024x1024.jpg 1024w, https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/composition-of-castable-alloys-980x980.jpg 980w, https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/composition-of-castable-alloys-480x480.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1024px, 100vw\" \/><\/a><\/p>\n<p>Bildet viser hvordan sammensetningen p\u00e5virker kornstrukturen. For eksempel oppst\u00e5r det grove kornet (50-100 \u00b5m bredt) i st\u00f8pets innledende fase.<\/p>\n<p>Silisiumelementer (10-20 \u00b5m) f\u00e5r h\u00f8y styrke og blokkerer dislokasjoner. I mellomtiden dannes det kjerner ved korngrensene (GB). Kjernene vokser til matrisens tilstand gjennom avkj\u00f8ling.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Mechanical_and_Physical_Properties\"><\/span>Mekaniske og fysiske egenskaper<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/output.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-18188 size-large\" src=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/output-1024x611.png\" alt=\"strekkfasthetsdiagram st\u00f8pbare aluminiumslegeringer\" width=\"1024\" height=\"611\" title=\"\" srcset=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/output-980x584.png 980w, https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/output-480x286.png 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1024px, 100vw\" \/><\/a><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Strength_and_Ductility\"><\/span>Styrke og duktilitet:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>St\u00f8pbare legeringer har strekkfasthet som varierer mellom 200 og 380 MPa. For eksempel f\u00e5r a356 280 MPa og er strekkbar (10%) rett f\u00f8r brudd.<\/p>\n<p>P\u00e5 samme m\u00e5te gir varmebehandling (f.eks. T6-herding) 20% \u00f8kt styrke og 8% duktilitet i A356. Dette oppn\u00e5s ved \u00e5 varme opp legeringene til 500 \u00b0C, slukke dem med vann og la dem aldres ved 150 \u00b0C i 5 timer.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Corrosion_Resistance\"><\/span>Motstandsdyktighet mot korrosjon<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>N\u00e5r en legering inneholder magnesium (f.eks. 520.0 med 10% Mg), f\u00e5r den et beskyttende oksidlag. Dette betyr at de kan konkurrere mot korrosjon i 15-20 \u00e5r i marine milj\u00f8er.<\/p>\n<p>I LM6 forhindrer sammensetningen av h\u00f8yt silisiuminnhold korrosjon i saltvann. Som et resultat fortsetter de \u00e5 fungere ved 50 Mpa trykk i undervannsprodukter.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Thermal_and_Electrical_Conductivity\"><\/span>Termisk og elektrisk ledningsevne<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Legeringer som 319 har 6% Si og 3% Cu. Det betyr at de leder varme med 150 W\/m-K. Det er det som gj\u00f8r dem til et f\u00f8rstevalg blant motorkomponenter.<\/p>\n<p>De har ogs\u00e5 lav tetthet, som ligger p\u00e5 rundt 2,7 g\/cm\u00b3. Det forbedrer drivstoffeffektiviteten (10%) p\u00e5 grunn av den lavere vekten, spesielt i biler.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Impact_of_Heat_Treatment\"><\/span>Effekten av varmebehandling<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Produsentene utf\u00f8rer varmebehandling for \u00e5 redusere hulrom og foredle kornene. Aldringstrinnet \u00f8ker for eksempel hardheten fra 80 HB til 95 HB i legeringer som ADC12.<\/p>\n<p>I tillegg f\u00f8rer omkrystalliseringsprosessen (som skjer i bildet) til kornkrymping p\u00e5 opptil 10-20 \u00b5m. Legeringen (30%) f\u00e5r dermed \u00f8kt utmattingsmotstand.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Common_Aluminum_Alloy_Grades\"><\/span>Vanlige kvaliteter av aluminiumslegeringer<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"A380\"><\/span>A380<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Det er 8-10% silisium, 3-4% kobber og mindre enn 1% jern til stede i A380 st\u00f8pbar aluminiumslegering. Silisiumpartikkelen har et lavere smeltepunkt. Dette betyr at de flyter jevnt i formene og fyller hvert gap.<\/p>\n<p>Hardheten er bedre p\u00e5 grunn av kobberelementene, noe som gj\u00f8r dem ideelle for deler med h\u00f8y belastning. Det er derfor denne legeringen med 320 MPa brukes til \u00e5 lage motorbraketter og elektronikkhus.<\/p>\n<p>Den fyller hullene skikkelig og for\u00e5rsaker ogs\u00e5 f\u00e6rre defekter. I tillegg kj\u00f8les denne legeringen ned raskere, noe som resulterer i en redusert produksjonstid p\u00e5 rundt 15%.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"A356\"><\/span>A356<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A356-legeringen har et innhold av silisium og magnesium (henholdsvis 7% og 0,3%). Dette er grunnen til at den gir bedre flyt og styrke.<\/p>\n<p>Det er omtrent 280 MPa strekkfasthet i denne legeringen og 12% duktilitet. Derfor kan de strekke seg like mye som 12% f\u00f8r de g\u00e5r i stykker.<\/p>\n<p>Du kan bruke a356-legeringen til \u00e5 lage hjul til fly og biler, opphengsdeler, landingsutstyr til fly og vingerammer.<\/p>\n<p>Det har ogs\u00e5 den unike egenskapen at det t\u00e5ler temperaturer p\u00e5 200 \u00b0C i 500 timer. Selv p\u00e5 dette punktet sprekker den ikke lett.<\/p>\n<p>Etter varmebehandling har denne legeringen \u00f8kt styrke (20%). Derfor er de ideelle til bruk i romfartsapplikasjoner.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"6061\"><\/span>6061<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>6061-legeringen best\u00e5r av 1% magnesium, 0,6% silisium og 0,3% kobber. Disse elementene, som magnesium, \u00f8ker evnen til \u00e5 stoppe korrosjon. Denne legeringen holder i 20 \u00e5r utend\u00f8rs og ruster ikke.<\/p>\n<p>Les ogs\u00e5: <a href=\"https:\/\/aludiecasting.com\/nb\/6061-vs-6063-aluminiumslegeringer\/\">6061 vs 6063 aluminiumslegeringer<\/a><\/p>\n<p>6061-legeringens strekkfasthet (310 Mpa) gj\u00f8r den nyttig i broer, bjelker og chassisdeler som opphengsarmer og marine rammer. Den lave tettheten bidrar ytterligere til \u00e5 gj\u00f8re 60% lettere enn st\u00e5l.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"ADC12\"><\/span>ADC12<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>ADC12-legeringen inneholder 10-20% silisium og 2-3% kobber, og er ganske popul\u00e6r. Silisium i dette metallet muliggj\u00f8r jevn st\u00f8ping, mens kobber \u00f8ker hardheten.<\/p>\n<p>Varmebehandling f\u00f8rer til endringer i hardhet, og overskrider den til 95 HB <strong>(<\/strong>Brinell<strong>)<\/strong>. Denne legeringen brukes til \u00e5 lage deler som motorblokker, smarttelefonhus og girkassehus.<\/p>\n<p>Den kan ogs\u00e5 ta p\u00e5 seg komplekse formprofiler i l\u00f8pet av 30 sekunder, noe som gir en produksjonsbesparelse p\u00e5 opptil 25%.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"LM25\"><\/span>LM25<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>LM25-legeringen er laget ved \u00e5 tilsette 0,3% magnesium og 7% silisium. Strekkfastheten er p\u00e5 260 MPa ved 200 \u00b0C.  Den gir god st\u00f8pbarhet for produksjon av pumpehus, marine konstruksjoner og hydrauliske ventiler.<\/p>\n<p>De sandst\u00f8pte veggene er s\u00e5 tynne som 1 mm; det er det som er den unike egenskapen. LM25 passer derfor godt til produksjon av lettvektsdesign.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"LM6\"><\/span>LM6<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>10-13% av silisiuminnholdet og mindre enn 0,1% magnesium er til stede i LM6-legeringen. P\u00e5 grunn av den h\u00f8yere mengden silisium korroderer ikke denne legeringen lett. Den kan overleve 50 MPa trykk i sj\u00f8vann.<\/p>\n<p>Produsentene bruker det til \u00e5 st\u00f8pe b\u00e5tpropeller og bryggebeslag. De fungerer i saltvann i \u00e5revis uten \u00e5 ruste. Det reduserer ogs\u00e5 vedlikeholdskostnadene med opptil 40%.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"5200\"><\/span>520.0<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Den st\u00f8pbare aluminiumslegeringen 520.0 har 10% magnesium og 0,1% silisium. Denne sammensetningen av elementer \u00f8ker strekkfastheten (380 MPa) og reduserer ogs\u00e5 vekten med opptil 50%.<\/p>\n<p>Du kan bruke dem til \u00e5 lage braketter til romfart, raketthus og milit\u00e6rt utstyr. En annen egenskap er at de t\u00e5ler vibrasjoner p\u00e5 rundt 500 Hz, uten at det oppst\u00e5r sprekker.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"319\"><\/span>319<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Denne legeringen har 6% silisium sammen med 3% kobber. Silisium gir bedre flyt, men kobber oppn\u00e5r bedre varmeledningsevne (150 W\/m-K).<\/p>\n<p>De st\u00f8pes for \u00e5 lage topplokk og kj\u00f8leribber. Det gir maksimal presisjon i deler som \u00b10,02 mm og passer godt inn i motorer.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"413\"><\/span>413<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Legering 413 inneholder 12% silisium og 2% jern. Dette er grunnen til at den gir en trykktetthet p\u00e5 rundt 50 MPa. Delene, som hydrauliske pumper og ventiler, er deres bruksomr\u00e5der.<\/p>\n<p>Denne legeringen tetter ogs\u00e5 lekkasjer i \u00e5pninger, som kan v\u00e6re s\u00e5 sm\u00e5 som 0,5 mm, noe som sparer v\u00e6ske.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"535\"><\/span>535<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Produsenter legger til 7% magnesium og 0,15% silisium i sammensetningen av 535 legering. Korrosjonsbestandigheten er i samsvar med n\u00f8yaktighet i pH 8-10-milj\u00f8er som sj\u00f8vann.<\/p>\n<p>De brukes til \u00e5 produsere skipsskrog og offshore-rigger, samt til sveising ved 300 \u00b0C. De sprekker ikke under denne temperaturen og kan vare i 25 \u00e5r under marine forhold.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Casting_Processes_for_Aluminum_Alloys\"><\/span>St\u00f8peprosesser for aluminiumslegeringer<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a href=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/Add-a-heading-2025-03-16T093926.898.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-18191 size-full\" src=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/Add-a-heading-2025-03-16T093926.898.png\" alt=\"st\u00f8peprosess for st\u00f8pbare aluminiumslegeringer\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/Add-a-heading-2025-03-16T093926.898.png 800w, https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/Add-a-heading-2025-03-16T093926.898-480x300.png 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 800px, 100vw\" \/><\/a><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Die_Casting\"><\/span>Pressst\u00f8ping<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>St\u00f8peprosessen inkluderer smelting av aluminiumslegeringen og injisering av den i formen under h\u00f8yt trykk. Den st\u00f8per deler p\u00e5 ikke mer enn 10-30 sekunder, og utgangsresultatet oppfyller raske og presise parametere.<\/p>\n<p>Blant de andre legeringene er A380 og ADC12 de mest brukte til \u00e5 produsere motorbraketter til biler og d\u00f8rh\u00e5ndtak til fly.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Sand_Casting\"><\/span>Sandst\u00f8ping<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Sandst\u00f8peprosessen bruker sandformer. Kornst\u00f8rrelsen varierer mellom 0,10 og 0,5 mm. Prosessen er velegnet og passer godt til produksjon av deler som motorblokker. Den er mye rimeligere (50%) enn pressst\u00f8ping, men gir ikke glatte overflater.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Investment_Casting\"><\/span>Investeringsst\u00f8ping<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"https:\/\/books.google.com.pk\/books?hl=en&amp;lr=&amp;id=C4-4EAAAQBAJ&amp;oi=fnd&amp;pg=PP1&amp;dq=Investment+casting&amp;ots=RsdXzfLfyW&amp;sig=XGTN46pqDmkOSgB5C5nyvTArqek\" target=\"_blank\" rel=\"noopener\">Investeringsst\u00f8ping<\/a> inkluderer voksm\u00f8nstre med keramiske belegg. De produserer deler med detaljerte elementer, som turbinblader.<\/p>\n<p>Det gir ogs\u00e5 strammere toleranser p\u00e5 \u00b10,05 mm, men det tar sv\u00e6rt lang tid (48 timer per st\u00f8peform).<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Challenges_and_Solutions_in_Aluminum_Casting\"><\/span>Utfordringer og l\u00f8sninger innen aluminiumst\u00f8ping<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Casting_Defects\"><\/span>St\u00f8pefeil<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>St\u00f8pbare aluminiumslegeringer for\u00e5rsaker defekter som por\u00f8sitet og krymping, noe som svekker delene. Det er nettopp derfor du m\u00e5 bruke vakuumst\u00f8ping for \u00e5 redusere por\u00f8siteten med opptil 70%.<\/p>\n<p>For \u00e5 forbedre overflateruheten (opp til 12,5 \u00b5m) er det viktig \u00e5 bruke 0,5 mm kuler ved 80 psi.<\/p>\n<p>Ved \u00e5 forvarme formene f\u00f8r injisering av smeltet legering unng\u00e5r man ogs\u00e5 at legeringen kleber og fyller de indre omr\u00e5dene med bedre flyt.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Alloy_Selection\"><\/span>Valg av legering<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u00c5 velge feil legering kan \u00f8delegge hele prosjektet. A380 egner seg for eksempel best til tynnveggede kj\u00f8ret\u00f8ydeler.<\/p>\n<p>LM6 skaper i mellomtiden en motstandsb\u00e6rer som vender mot sj\u00f8vann. ADC12 fyller mindre hull p\u00e5 maks. 30 sekunder, men kan sprekke ved overoppheting til over 600 \u00b0C.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Heat_Treatment_Challenges\"><\/span>Utfordringer med varmebehandling<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/heat-treatment-of-alu-alloys.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-18192 size-large\" src=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/heat-treatment-of-alu-alloys-1024x1024.jpg\" alt=\"varmebehandling av aluminium\" width=\"1024\" height=\"1024\" title=\"\" srcset=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/heat-treatment-of-alu-alloys-1024x1024.jpg 1024w, https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/heat-treatment-of-alu-alloys-980x980.jpg 980w, https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/heat-treatment-of-alu-alloys-480x480.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1024px, 100vw\" \/><\/a><\/p>\n<p>Den varme sonen i ovnene varmer opp legeringer. Bruk av 500 \u00b0C temperatur og drift i 4 timer gir sterke egenskaper i dem.<\/p>\n<p>Slukningstanken i denne prosessen bidrar til \u00e5 forhindre sprekkdannelser ved at den kj\u00f8ler ned delene med 10 \u00b0C\/min. Kj\u00f8letemperaturen m\u00e5 imidlertid ikke v\u00e6re for lav. Det kan nemlig f\u00f8re til spr\u00f8het. For eksempel gir riktig br\u00e5kj\u00f8ling 20% styrke til legering 6061.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Konklusjon<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>St\u00f8pbare aluminiumlegeringer er sv\u00e6rt viktige i mange bransjer, som bilindustrien, romfart, industri og til og med forbrukerprodukter. De er lette i vekt, og derfor reduserer de drivstofforbruket.<\/p>\n<p>Dessuten har de en korrosjonshindrende evne som gj\u00f8r at de kan vare i mer enn 25 \u00e5r. Dette er ogs\u00e5 grunnen til at de er mer krevende i t\u00f8ffe milj\u00f8er.<\/p>\n<p>Hvis det oppst\u00e5r utfordringer som krymping eller por\u00f8sitet, kan du fikse dem ved hjelp av spesielle teknikker. S\u00e5 lag allsidige produkter med aluminiumslegeringer etter eget valg.<\/p>","protected":false},"excerpt":{"rendered":"<p>Les om egenskapene til st\u00f8pbare aluminiumlegeringer som A380, A356 og 6061. L\u00e6r mer om deres strekkfasthet, korrosjonsbestandighet og innvirkning p\u00e5 bransjer som bil-, romfarts- og elektronikkindustrien. <\/p>","protected":false},"author":2,"featured_media":18193,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-18187","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-aluminium-alloy-castings"],"_links":{"self":[{"href":"https:\/\/aludiecasting.com\/nb\/wp-json\/wp\/v2\/posts\/18187","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aludiecasting.com\/nb\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aludiecasting.com\/nb\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aludiecasting.com\/nb\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/aludiecasting.com\/nb\/wp-json\/wp\/v2\/comments?post=18187"}],"version-history":[{"count":0,"href":"https:\/\/aludiecasting.com\/nb\/wp-json\/wp\/v2\/posts\/18187\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aludiecasting.com\/nb\/wp-json\/wp\/v2\/media\/18193"}],"wp:attachment":[{"href":"https:\/\/aludiecasting.com\/nb\/wp-json\/wp\/v2\/media?parent=18187"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aludiecasting.com\/nb\/wp-json\/wp\/v2\/categories?post=18187"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aludiecasting.com\/nb\/wp-json\/wp\/v2\/tags?post=18187"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}