{"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":"stobbare-aluminiumslegeringer","status":"publish","type":"post","link":"https:\/\/aludiecasting.com\/da\/stobbare-aluminiumslegeringer\/","title":{"rendered":"St\u00f8bbare aluminiumslegeringer: Sammens\u00e6tning, egenskaber og anvendelser forklaret"},"content":{"rendered":"<p>St\u00f8bbare aluminiumslegeringer har forskellige mekaniske egenskaber. Almindelige typer omfatter A356, A357 og A380. Varmebehandlinger som T6 forbedrer styrken. De bruges i bilindustrien, luft- og rumfart og generel teknik. N\u00f8gleegenskaberne er tr\u00e6kstyrke, forl\u00e6ngelse og h\u00e5rdhed. Valg af legering afh\u00e6nger af anvendelsesbehovet.<\/p>\n<p>I denne artikel f\u00e5r du den grundl\u00e6ggende viden om forskellige typer af st\u00f8bbare aluminiumslegeringer.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 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\">Indholdsfortegnelse<\/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=\"Skift til indholdsfortegnelse\"><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\/da\/stobbare-aluminiumslegeringer\/#Overview_of_Castable_Aluminum_Alloys\" >Oversigt over st\u00f8bbare 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\/da\/stobbare-aluminiumslegeringer\/#Definition_and_Importance\" >Definition 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\/da\/stobbare-aluminiumslegeringer\/#Composition_and_Properties_of_Castable_Aluminum_Alloys\" >Sammens\u00e6tning og egenskaber for st\u00f8bbare 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\/da\/stobbare-aluminiumslegeringer\/#Alloy_Composition\" >Legeringens sammens\u00e6tning<\/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\/da\/stobbare-aluminiumslegeringer\/#Role_of_Trace_Elements\" >Sporelementernes 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\/da\/stobbare-aluminiumslegeringer\/#Microscopic_Structure_and_Composition\" >Mikroskopisk struktur og sammens\u00e6tning<\/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\/da\/stobbare-aluminiumslegeringer\/#Mechanical_and_Physical_Properties\" >Mekaniske og fysiske egenskaber<\/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\/da\/stobbare-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\/da\/stobbare-aluminiumslegeringer\/#Corrosion_Resistance\" >Modstandsdygtighed over for korrosion<\/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\/da\/stobbare-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\/da\/stobbare-aluminiumslegeringer\/#Impact_of_Heat_Treatment\" >Indvirkning af 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\/da\/stobbare-aluminiumslegeringer\/#Common_Aluminum_Alloy_Grades\" >Almindelige kvaliteter af 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\/da\/stobbare-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\/da\/stobbare-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\/da\/stobbare-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\/da\/stobbare-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\/da\/stobbare-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\/da\/stobbare-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\/da\/stobbare-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\/da\/stobbare-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\/da\/stobbare-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\/da\/stobbare-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\/da\/stobbare-aluminiumslegeringer\/#Casting_Processes_for_Aluminum_Alloys\" >St\u00f8beprocesser til 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\/da\/stobbare-aluminiumslegeringer\/#Die_Casting\" >Trykst\u00f8bning<\/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\/da\/stobbare-aluminiumslegeringer\/#Sand_Casting\" >Sandst\u00f8bning<\/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\/da\/stobbare-aluminiumslegeringer\/#Investment_Casting\" >Investeringsst\u00f8bning<\/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\/da\/stobbare-aluminiumslegeringer\/#Challenges_and_Solutions_in_Aluminum_Casting\" >Udfordringer og l\u00f8sninger inden for aluminiumsst\u00f8bning<\/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\/da\/stobbare-aluminiumslegeringer\/#Casting_Defects\" >Fejl i st\u00f8bningen<\/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\/da\/stobbare-aluminiumslegeringer\/#Alloy_Selection\" >Valg af 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\/da\/stobbare-aluminiumslegeringer\/#Heat_Treatment_Challenges\" >Udfordringer ved 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\/da\/stobbare-aluminiumslegeringer\/#Conclusion\" >Konklusion:<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Overview_of_Castable_Aluminum_Alloys\"><\/span>Oversigt over st\u00f8bbare aluminiumslegeringer<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Definition_and_Importance\"><\/span>Definition og betydning<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Der findes mange legeringer til st\u00f8bning. Nogle af dem er aluminiumslegeringer. Aluminium indeholder en blanding af andre grundstoffer (f.eks. magnesium eller silicium). Det giver de forskellige legeringer.<\/p>\n<p>Aluminium smelter ved temperaturer omkring 660 \u00b0C. Denne smeltede form f\u00f8res derefter ind i formen for at f\u00e5 en profilform.<\/p>\n<p>P\u00e5 grund af deres lavere v\u00e6gt med en massefylde p\u00e5 2,7 g\/cm\u00b3 er disse legeringer 3 gange lettere end st\u00e5l. Det er grunden til, at de er velegnede til mange anvendelsesomr\u00e5der. For eksempel biler, fly og maskiner.<\/p>\n<p>De modst\u00e5r ogs\u00e5 korrosion godt og kan laves i enhver form, samtidig med at de er st\u00e6rke.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Composition_and_Properties_of_Castable_Aluminum_Alloys\"><\/span>Sammens\u00e6tning og egenskaber for st\u00f8bbare 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\">Sammens\u00e6tning (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\">Massefylde (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\">Tr\u00e6kstyrke (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\">Udl\u00f8bsstyrke (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\">Forl\u00e6ngelse (%)<\/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\">Modstandsdygtighed over for korrosion<\/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\">God<\/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\">God<\/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\">Fair<\/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\">Fair<\/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\">Fair<\/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\">God<\/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\">God<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"Alloy_Composition\"><\/span>Legeringens sammens\u00e6tning<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Dannelsen af st\u00f8bbare aluminiumlegeringer omfatter sammens\u00e6tningen af mange elementer. For eksempel kan aluminium indeholde silicium (5-12%), magnesium (0,2-10%), kobber (1-4%) eller zink (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=\"Forl\u00e6ngelse af st\u00f8bbare 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>Silicium smelter ved 577 \u00b0C, hvilket g\u00f8r, at det fylder formene bedre. I mellemtiden hj\u00e6lper magnesium med at f\u00e5 mere styrke, da det danner fine udf\u00e6ldninger. Kobberet udvikler h\u00e5rdhed.<\/p>\n<p>For eksempel er der 8-10% silicium og 3-4% kobber i legering A380. Det er derfor, de har en h\u00f8j flydeevne og spreder sig over formspalter s\u00e5 smalle som 0,1 mm.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Role_of_Trace_Elements\"><\/span>Sporelementernes rolle<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Sm\u00e5 m\u00e6ngder af elementer som jern (&lt;1%) forhindrer, at formen kl\u00e6ber fast, og mangan (0,5%) forbedrer korrosionsbestandigheden.<\/p>\n<p>Ved st\u00f8bning af aluminiumslegeringer undg\u00e5r man, at formen kl\u00e6ber, simpelthen p\u00e5 grund af bidraget fra sm\u00e5 m\u00e6ngder sporstoffer som jern (&lt;1%).<\/p>\n<p>P\u00e5 samme m\u00e5de modst\u00e5r de korrosion godt og har mindre kornst\u00f8rrelser p\u00e5 grund af henholdsvis mangan (0,5%) og titanium (0,2%). Det reducerer ogs\u00e5 antallet af revner.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Microscopic_Structure_and_Composition\"><\/span>Mikroskopisk struktur og sammens\u00e6tning<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=\"sammens\u00e6tning af st\u00f8bbare 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>Det n\u00e6vnte billede viser sammens\u00e6tningens effekt p\u00e5 kornstrukturen. For eksempel forekommer det grove korn (50-100 \u00b5m bredt) i st\u00f8bningens indledende fase.<\/p>\n<p>Siliciumelementer (10-20 \u00b5m) f\u00e5r h\u00f8j styrke og blokerer dislokationer. I mellemtiden dannes der kerner ved et punkt med korngr\u00e6nser (GB'er). Kernerne vokser til matrixens tilstand under afk\u00f8ling.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Mechanical_and_Physical_Properties\"><\/span>Mekaniske og fysiske egenskaber<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=\"Diagram over tr\u00e6kstyrke for st\u00f8bbare 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\u00f8bbare legeringer har tr\u00e6kstyrker, der varierer mellem 200 og 380 MPa. For eksempel f\u00e5r a356 280 MPa og er str\u00e6kbar (10%) lige f\u00f8r brud.<\/p>\n<p>Ligeledes fremkalder varmebehandling (f.eks. T6-h\u00e6rdning) 20% \u00f8get styrke og 8% duktilitet i A356. Det opn\u00e5s ved at opvarme legeringer til 500 \u00b0C, slukke dem med vand og \u00e6lde dem ved 150 \u00b0C i 5 timer.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Corrosion_Resistance\"><\/span>Modstandsdygtighed over for korrosion<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>N\u00e5r en legering indeholder magnesium (f.eks. 520.0 med 10% Mg), f\u00e5r den et beskyttende oxidlag. Det betyder, at de kan konkurrere mod korrosion i 15-20 \u00e5r i havmilj\u00f8er.<\/p>\n<p>I LM6 forhindrer sammens\u00e6tningen af h\u00f8jt siliciumindhold saltvandskorrosion. Derfor fungerer de fortsat ved et tryk p\u00e5 50 Mpa i undervandsprodukter.<\/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. S\u00e5 de leder varme ved 150 W\/m-K. Det er det, der g\u00f8r dem til et f\u00f8rstevalg blandt motorkomponenter.<\/p>\n<p>De har ogs\u00e5 en lav massefylde, som er omkring 2,7 g\/cm\u00b3. Det forbedrer br\u00e6ndstofeffektiviteten (10%) p\u00e5 grund af den lavere v\u00e6gt, is\u00e6r i biler.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Impact_of_Heat_Treatment\"><\/span>Indvirkning af varmebehandling<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Producenterne udf\u00f8rer varmebehandling for at reducere hulrum og forfine kornene. For eksempel \u00f8ger \u00e6ldningstrinnet h\u00e5rdheden fra 80 HB til 95 HB i legeringer som ADC12.<\/p>\n<p>Derudover for\u00e5rsager omkrystalliseringsprocessen (som forekommer i billedet) kornkrympning p\u00e5 op til 10-20 \u00b5m. S\u00e5 legeringen f\u00e5r \u00f8get udmattelsesmodstand (30%) som resultat.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Common_Aluminum_Alloy_Grades\"><\/span>Almindelige kvaliteter af 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>Der er 8-10% silicium, 3-4% kobber og mindre end 1% jern til stede i A380's st\u00f8bte aluminiumslegering. Siliciumpartiklerne har et lavere smeltepunkt. Det betyder, at de flyder let i formene og udfylder hvert hul.<\/p>\n<p>H\u00e5rdheden er bedre p\u00e5 grund af kobberelementerne, som g\u00f8r dem ideelle til dele med h\u00f8j belastning. Det er derfor, denne legering med 320 MPa skaber motorbeslag og elektroniske huse.<\/p>\n<p>Den udfylder huller ordentligt og for\u00e5rsager ogs\u00e5 f\u00e6rre defekter. Desuden k\u00f8ler denne legering hurtigere, hvilket resulterer i en reduceret produktionstid p\u00e5 omkring 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 indhold af silicium og magnesium (henholdsvis 7% og 0,3%). Derfor giver den bedre flydeevne og styrke.<\/p>\n<p>Der er ca. 280 MPa tr\u00e6kstyrke i denne legering og 12% duktilitet. Derfor kan de str\u00e6kke sig lige s\u00e5 meget som 12%, f\u00f8r de g\u00e5r i stykker.<\/p>\n<p>Du kan bruge a356-legeringen til at fremstille hjul til fly og biler, oph\u00e6ngningsdele, landingsstel til fly og vingerammer.<\/p>\n<p>Det har ogs\u00e5 den unikke egenskab, at det kan modst\u00e5 temperaturer p\u00e5 200 \u00b0C i 500 timer. Selv p\u00e5 dette tidspunkt spr\u00e6kker det ikke let.<\/p>\n<p>Efter varmebehandling har denne legering \u00f8get styrke (20%). S\u00e5 de er ideelle til brug i luft- og rumfart.<\/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 af 1% magnesium, 0,6% silicium og 0,3% kobber. Disse elementer, som magnesium, \u00f8ger dens evne til at stoppe korrosion. Denne legering holder 20 \u00e5r udend\u00f8rs og ruster ikke.<\/p>\n<p>L\u00e6s ogs\u00e5: <a href=\"https:\/\/aludiecasting.com\/da\/6061-vs-6063-aluminiumslegeringer\/\">6061 vs 6063 aluminiumslegeringer<\/a><\/p>\n<p>6061-legeringens tr\u00e6kstyrke (310 Mpa) g\u00f8r den anvendelig i broer, bj\u00e6lker og chassisdele som oph\u00e6ngningsarme og skibsrammer. Dens lave massefylde hj\u00e6lper yderligere med at g\u00f8re den 60% lettere end 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, der indeholder 10-20% silicium og 2-3% kobber, er ret popul\u00e6r. Silicium i dette metal g\u00f8r det muligt at st\u00f8be glat, mens kobber \u00f8ger h\u00e5rdheden.<\/p>\n<p>Varmebehandling medf\u00f8rer \u00e6ndringer i h\u00e5rdheden, s\u00e5 den overstiger 95 HB. <strong>(<\/strong>Brinell<strong>)<\/strong>. Denne legering bruges til at fremstille dele som motorblokke til biler, smartphonehuse og gearkassehuse.<\/p>\n<p>Den tager ogs\u00e5 komplekse profiler p\u00e5 30 sekunder, hvilket sparer produktionen med op til 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 fremstillet ved at tils\u00e6tte 0,3% magnesium og 7% silicium. Desuden har den en tr\u00e6kstyrke p\u00e5 260 MPa ved 200 \u00b0C.  Det giver god st\u00f8bbarhed til fremstilling af pumpehuse, marinekonstruktioner og hydrauliske ventiler.<\/p>\n<p>Dens sandst\u00f8bte v\u00e6gge er s\u00e5 tynde som 1 mm; det er, hvad dens unikke funktion g\u00f8r. S\u00e5 LM25 passer godt til produktion af letv\u00e6gtsdesign.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"LM6\"><\/span>LM6<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>10-13% af siliciumindholdet og mindre end 0,1% af magnesium er til stede i LM6-legeringen. P\u00e5 grund af den h\u00f8jere m\u00e6ngde silicium korroderer denne legering ikke s\u00e5 let. Den kan overleve et tryk p\u00e5 50 MPa i havvand.<\/p>\n<p>Producenterne bruger det til at st\u00f8be b\u00e5dpropeller og dokbeslag. De fungerer i \u00e5revis i saltvand uden at ruste. Det reducerer ogs\u00e5 vedligeholdelsesomkostningerne med op til 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\u00f8bbare aluminiumslegering p\u00e5 520.0 har 10% magnesium og 0,1% silicium. Denne sammens\u00e6tning af elementer \u00f8ger dens tr\u00e6kstyrke (380 MPa) og reducerer ogs\u00e5 dens v\u00e6gt med op til 50%.<\/p>\n<p>Du kan bruge dem til at lave beslag til rumfart, rakethuse og milit\u00e6rt udstyr. En anden egenskab er, at de kan h\u00e5ndtere vibrationer p\u00e5 omkring 500 Hz uden at sl\u00e5 revner.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"319\"><\/span>319<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Denne legering har 6% silicium sammen med 3% kobber. Silicium forbedrer fluiditeten, men kobber opn\u00e5r en bedre varmeledningsevne (150 W\/m-K).<\/p>\n<p>De st\u00f8bes til fremstilling af topstykker og k\u00f8leplader. Det giver maksimal pr\u00e6cision i dele som \u00b10,02 mm og passer t\u00e6t 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 indeholder 12% silicium og 2% jern. Det er derfor, den giver en trykt\u00e6thed p\u00e5 omkring 50 MPa. Delene, som f.eks. hydrauliske pumper og ventiler, er deres anvendelsesomr\u00e5der.<\/p>\n<p>Denne legering forsegler ogs\u00e5 l\u00e6kager i mellemrum, som kan v\u00e6re s\u00e5 sm\u00e5 som 0,5 mm, hvilket 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>Producenterne tilf\u00f8jer 7% magnesium og 0,15% silicium i sammens\u00e6tningen af 535 legeringer. Dens korrosionsbestandighed er n\u00f8jagtig i pH 8-10-milj\u00f8er som havvand.<\/p>\n<p>De bruges til at fremstille skibsskrog og offshore-rigge samt til svejsning ved 300 \u00b0C. De revner ikke under denne temperatur og kan holde i 25 \u00e5r under marine forhold.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Casting_Processes_for_Aluminum_Alloys\"><\/span>St\u00f8beprocesser til 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\u00f8beproces for aluminiumslegering\" 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>Trykst\u00f8bning<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Trykst\u00f8bningsprocessen omfatter smeltning af aluminiumslegeringen og indspr\u00f8jtning af den i formen under h\u00f8jt tryk. Den st\u00f8ber dele p\u00e5 ikke mere end 10-30 sekunder, og resultatet opfylder hurtige og pr\u00e6cise parametre.<\/p>\n<p>Blandt de andre legeringer er A380 og ADC12 de mest anvendte til fremstilling af motorbeslag til biler og d\u00f8rh\u00e5ndtag til fly.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Sand_Casting\"><\/span>Sandst\u00f8bning<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Sandst\u00f8bningsprocessen bruger sandforme. Deres kornst\u00f8rrelse svinger mellem 0,10 og 0,5 mm. Processen er velegnet og passer godt til fremstilling af dele som motorblokke. Den er meget mere overkommelig (50%) end trykst\u00f8bning, men giver ikke glatte overflader.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Investment_Casting\"><\/span>Investeringsst\u00f8bning<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\u00f8bning<\/a> omfatter voksm\u00f8nstre med keramiske bel\u00e6gninger. De producerer dele, der tilf\u00f8jer detaljerede elementer, som f.eks. turbineblade.<\/p>\n<p>Det giver ogs\u00e5 strammere tolerancer p\u00e5 ca. \u00b10,05 mm, men det tager meget lang tid (48 timer pr. form).<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Challenges_and_Solutions_in_Aluminum_Casting\"><\/span>Udfordringer og l\u00f8sninger inden for aluminiumsst\u00f8bning<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Casting_Defects\"><\/span>Fejl i st\u00f8bningen<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>St\u00f8bbare aluminiumslegeringer for\u00e5rsager defekter som por\u00f8sitet og krympning, som sv\u00e6kker delene. Det er netop derfor, du skal bruge vakuumst\u00f8bning til at reducere por\u00f8siteten med op til 70%.<\/p>\n<p>For at forbedre overfladeruheden (op til 12,5 \u00b5m) er det vigtigt at v\u00e6lge shot peening med 0,5 mm perler ved 80 psi.<\/p>\n<p>Hvis man forvarmer formene, f\u00f8r man spr\u00f8jter den smeltede legering ind, undg\u00e5r man kl\u00e6brighed og fylder de indre omr\u00e5der med bedre fluiditet.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Alloy_Selection\"><\/span>Valg af legering<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>At v\u00e6lge den forkerte legering kan \u00f8del\u00e6gge hele projektet. For eksempel er A380 bedst egnet til tyndv\u00e6ggede k\u00f8ret\u00f8jsdele.<\/p>\n<p>I mellemtiden skaber LM6 en modstandsb\u00e6rer, der vender mod havvand. ADC12 udfylder mindre huller p\u00e5 h\u00f8jst 30 sekunder, men kan revne, hvis den overophedes til over 600 \u00b0C.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Heat_Treatment_Challenges\"><\/span>Udfordringer ved 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 af 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 zone i ovne opvarmer legeringer. Brugen af en temperatur p\u00e5 500 \u00b0C og drift i 4 timer giver dem st\u00e6rke egenskaber.<\/p>\n<p>Slukningstanken i denne proces hj\u00e6lper med at forhindre revner, da den k\u00f8ler delene ned med 10 \u00b0C\/min. K\u00f8letemperaturen m\u00e5 dog ikke v\u00e6re for lav. Det skyldes, at man kan risikere sk\u00f8rhed. F.eks. giver den rigtige slukning 20% styrke til legering 6061.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Konklusion:<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>St\u00f8bbare aluminiumslegeringer er meget vigtige i mange brancher som bilindustrien, rumfart, industri og endda forbrugerprodukter. De er lette i v\u00e6gt, og derfor reducerer de br\u00e6ndstofforbruget.<\/p>\n<p>Deres evne til at stoppe korrosion betyder ogs\u00e5, at de kan holde i mere end 25 \u00e5r. Det er ogs\u00e5 grunden til, at de er mere kr\u00e6vende i barske milj\u00f8er.<\/p>\n<p>Hvis der er udfordringer som krympning eller por\u00f8sitet, kan du l\u00f8se dem ved hj\u00e6lp af s\u00e6rlige teknikker. S\u00e5 lav alsidige produkter ved hj\u00e6lp af aluminiumslegeringer efter eget valg.<\/p>","protected":false},"excerpt":{"rendered":"<p>L\u00e6s om egenskaber ved st\u00f8bbare aluminiumslegeringer som A380, A356 og 6061. L\u00e6r om deres tr\u00e6kstyrke, korrosionsbestandighed og indvirkning p\u00e5 industrier som bil-, rumfarts- og elektronikindustrien. <\/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\/da\/wp-json\/wp\/v2\/posts\/18187","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aludiecasting.com\/da\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aludiecasting.com\/da\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aludiecasting.com\/da\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/aludiecasting.com\/da\/wp-json\/wp\/v2\/comments?post=18187"}],"version-history":[{"count":0,"href":"https:\/\/aludiecasting.com\/da\/wp-json\/wp\/v2\/posts\/18187\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aludiecasting.com\/da\/wp-json\/wp\/v2\/media\/18193"}],"wp:attachment":[{"href":"https:\/\/aludiecasting.com\/da\/wp-json\/wp\/v2\/media?parent=18187"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aludiecasting.com\/da\/wp-json\/wp\/v2\/categories?post=18187"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aludiecasting.com\/da\/wp-json\/wp\/v2\/tags?post=18187"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}