{"id":18252,"date":"2025-03-30T04:09:07","date_gmt":"2025-03-30T04:09:07","guid":{"rendered":"https:\/\/aludiecasting.com\/?p=18252"},"modified":"2025-03-30T04:09:07","modified_gmt":"2025-03-30T04:09:07","slug":"aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati","status":"publish","type":"post","link":"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/","title":{"rendered":"Aliaje de zinc turnat: Un ghid al tipurilor, propriet\u0103\u021bilor \u0219i aplica\u021biilor"},"content":{"rendered":"<p>Aliajele de zinc utilizate \u00een turnarea sub presiune includ Zamak 2, Zamak 3, Zamak 5 \u0219i ZA8. Zamak 2 are 3,8-4,3% aluminiu, 2,7-3,3% cupru \u0219i 0,035-0,06% magneziu, cu o rezisten\u021b\u0103 la trac\u021biune de 328 MPa. Zamak 3 este f\u0103r\u0103 cupru (&lt;0,03%), are 3,8-4,3% aluminiu \u0219i 0,035-0,06% magneziu, cu o rezisten\u021b\u0103 la trac\u021biune de 283 MPa. Zamak 5 con\u021bine 3,8-4,3% aluminiu, 0,7-1,1% cupru, \u0219i 0,035-0,06% magneziu, oferind o rezisten\u021b\u0103 la trac\u021biune de 310 MPa. ZA8 are 8,2-8,8% aluminiu, 0,9-1,3% cupru \u0219i 0,02-0,035% magneziu, cu o rezisten\u021b\u0103 la trac\u021biune de 386 MPa \u0219i o stabilitate termic\u0103 mai bun\u0103.<\/p>\n<p>Vre\u021bi s\u0103 vede\u021bi de ce le aleg industriile cu volume mari, cum ar fi industria auto, bunuri de consum sau electronic\u0103? P\u0103trunde\u021bi \u00een acest articol pentru a afla \u00een detaliu cum func\u021bioneaz\u0103 aliajele de zinc \u0219i beneficiile lor.<\/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\">Tabla de con\u021binut<\/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=\"Toggle Tabelul de con\u021binut\"><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\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Classification_of_Zinc_Alloys\" >Clasificarea aliajelor de zinc<\/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\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Zamak_2_Alloy\" >Aliaj Zamak 2<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Composition\" >Compozi\u021bie:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Properties\" >Propriet\u0103\u021bi:<\/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\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Applications\" >Aplica\u021bii:<\/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\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Zamak_3_Alloy\" >Zamak 3 Aliaj<\/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\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Composition-2\" >Compozi\u021bie:<\/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\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Properties-2\" >Propriet\u0103\u021bi:<\/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\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Applications-2\" >Aplica\u021bii:<\/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\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Zamak_5_Alloy\" >Aliaj Zamak 5<\/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\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Composition-3\" >Compozi\u021bie:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Properties-3\" >Propriet\u0103\u021bi:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Applications-3\" >Aplica\u021bii:<\/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\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#ZA8_Alloy\" >Aliaj ZA8<\/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\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Composition-4\" >Compozi\u021bie:<\/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\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Properties-4\" >Propriet\u0103\u021bi:<\/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\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Applications-4\" >Aplica\u021bii:<\/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\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Superloy\" >Superloy<\/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\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Composition-5\" >Compozi\u021bie:<\/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\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Properties-5\" >Propriet\u0103\u021bi:<\/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\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Applications-5\" >Aplica\u021bii:<\/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\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#AcuZinc_5_Alloy\" >Aliaj AcuZinc 5<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Composition-6\" >Compozi\u021bie:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Properties-6\" >Propriet\u0103\u021bi:<\/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\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Applications-6\" >Aplica\u021bii:<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Properties_of_Zinc_Alloys\" >Propriet\u0103\u021bi ale aliajelor de zinc<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Mechanical_Properties\" >Propriet\u0103\u021bi mecanice<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Corrosion_Resistance\" >Rezisten\u021ba la coroziune<\/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\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Thermal_and_Electrical_Properties\" >Propriet\u0103\u021bi termice \u0219i electrice<\/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\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Fatigue_Resistance\" >Rezisten\u021ba la oboseal\u0103<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Zamak_2_3_5_ZA-8_Superloy_and_AcuZinc_5_Comparison_Table\" >Tabel comparativ Zamak 2, 3, 5, ZA-8, Superloy \u0219i AcuZinc 5<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Table_2_Mechanical_Properties_Typical_Die-Cast_Values\" >Tabelul 2: Propriet\u0103\u021bi mecanice (valori tipice de turnare sub presiune)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Table_3_Physical_Properties\" >Tabelul 3: Propriet\u0103\u021bi fizice<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-34\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Comparison_of_Zinc_Alloy_Zamak_5_vs_Alternative_Materials\" >Compara\u021bie \u00eentre aliajul de zinc (Zamak 5) \u0219i materialele alternative<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-35\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Manufacturing_Processes_for_Zinc_Alloys\" >Procese de fabrica\u021bie pentru aliaje de zinc<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-36\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#A_Die_Casting\" >A.  Turnare sub presiune<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-37\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Hot_Chamber_Die_Casting\" >Hot Chamber Die Casting:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-38\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Cold_Chamber_Die_Casting\" >Camer\u0103 rece turnare sub presiune:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-39\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#B_Gravity_Casting\" >B.  Turnare prin gravita\u021bie<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-40\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#C_Sand_Casting\" >C.  Turnare \u00een nisip<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-41\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#D_Surface_Finishing\" >D.  Finisarea suprafe\u021bei<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-42\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#E_Machining\" >E.  Prelucrare<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-43\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#F_Recycling\" >F.   Reciclare<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-44\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Advantages_of_Zinc_Alloys\" >Avantajele aliajelor de zinc<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-45\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Cost-Effectiveness\" >Cost-eficacitate<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-46\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Corrosion_Resistance_and_Durability\" >Rezisten\u021b\u0103 la coroziune \u0219i durabilitate<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-47\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#High_Strength-to-Weight_Ratio\" >Raport ridicat rezisten\u021b\u0103\/greutate<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-48\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Damping_Capacity\" >Capacitatea de amortizare<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-49\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Challenges_and_Limitations_of_Zinc_Alloys\" >Provoc\u0103ri \u0219i limit\u0103ri ale aliajelor de zinc<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-50\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Corrosion_Mechanisms\" >Mecanisme de coroziune<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-51\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#High-Temperature_Performance\" >Performan\u021b\u0103 la temperaturi ridicate<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-52\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Toxicity_Concerns\" >Preocup\u0103ri legate de toxicitate<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-53\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Creep_Resistance\" >Rezisten\u021ba la fluaj<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-54\" href=\"https:\/\/aludiecasting.com\/ro\/aliaje-de-zinc-turnate-un-ghid-al-tipurilor-de-proprietati\/#Conclusion\" >Concluzie<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Classification_of_Zinc_Alloys\"><\/span>Clasificarea aliajelor de zinc<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a href=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/zinc-alloys-composition.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-18253\" src=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/zinc-alloys-composition-1024x1024.jpg\" alt=\"clasificarea aliajelor de zinc\" width=\"1013\" height=\"1013\" title=\"\" srcset=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/zinc-alloys-composition-1024x1024.jpg 1013w, https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/zinc-alloys-composition-980x980.jpg 980w, https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/zinc-alloys-composition-480x480.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1013px, 100vw\" \/><\/a><\/p>\n<p>Aliajele de zinc se \u00eencadreaz\u0103 \u00een diferite categorii. Deoarece au diferite elemente primare de aliere, propriet\u0103\u021bile lor variaz\u0103. Acesta este modul \u00een care le pute\u021bi determina propriet\u0103\u021bile mecanice, comportamentul la turnare \u0219i componentele industriale. S\u0103 le descoperim pe cele mai importante.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Zamak_2_Alloy\"><\/span>Aliaj Zamak 2<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h3><span class=\"ez-toc-section\" id=\"Composition\"><\/span>Compozi\u021bie:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Zamak 2 con\u021bine zinc ca element primar. De asemenea, exist\u0103 3,8-4,3% aluminiu, 2,7-3,3% cupru \u0219i 0,035-0,06% magneziu. Are o cantitate mai mare de cupru dec\u00e2t alte aliaje. Ca urmare, duritatea \u0219i rezisten\u021ba la uzur\u0103 cresc.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Properties\"><\/span>Propriet\u0103\u021bi:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>328 Mpa este rezisten\u021ba la trac\u021biune a Zamak 2. Duritatea merge de la 100 HB. Cantitatea mai mare de cupru formeaz\u0103 o structur\u0103 stabil\u0103 <a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/0022024874900177\" target=\"_blank\" rel=\"noopener\">faza de alam\u0103 alfa-beta<\/a>.<\/p>\n<p>Aceasta \u00eenseamn\u0103 c\u0103 aceste aliaje au stabilitate dimensional\u0103. Prin urmare, pute\u021bi ob\u021bine rezultate precise \u00een urma solidific\u0103rii.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Applications\"><\/span>Aplica\u021bii:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Componentele care se confrunt\u0103 cu situa\u021bii de stres ridicat sunt realizate cu zamak 2. De exemplu, angrenaje, \u00eencuietori \u0219i piese de ma\u0219ini industriale.<\/p>\n<p><strong>Faze eutectice binare<\/strong> \u00eenf\u0103\u0219oar\u0103 dendritele bogate \u00een zinc. Aceasta este caracteristica unic\u0103 a microstructurii acestui aliaj. Acest lucru este, de asemenea, benefic pentru nevoile de rezisten\u021b\u0103 la uzur\u0103.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Zamak_3_Alloy\"><\/span>Zamak 3 Aliaj<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h3><span class=\"ez-toc-section\" id=\"Composition-2\"><\/span>Compozi\u021bie:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Aliajul Zamak 3 const\u0103 dintr-o cantitate mai mic\u0103 de cupru (&lt;0,03%), \u00eempreun\u0103 cu 3,8 - 4,3% aluminiu \u0219i 0,035 - 0,06% magneziu.<\/p>\n<p>Acest aliaj se distinge de alte aliaje zamak prin prezen\u021ba aproape zero a cuprului.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Properties-2\"><\/span>Propriet\u0103\u021bi:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Motivul din spatele ductilit\u0103\u021bii superioare a Zamak 3 este rezisten\u021ba la trac\u021biune de 283 MPa \u0219i alungirea 20%. Amestecul de magneziu ajut\u0103 la rafinarea limitelor granulelor de zinc. \u00cen consecin\u021b\u0103, o structur\u0103 cu granula\u021bie fin\u0103 evit\u0103 fisurile \u00een timpul procesului de r\u0103cire.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Applications-2\"><\/span>Aplica\u021bii:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Aceste aliaje se potrivesc dimensiunilor compacte sau pieselor cu forme complicate. De exemplu, fermoare, ro\u021bi de juc\u0103rie \u0219i conectori electrici.<\/p>\n<p>\u00cen ceea ce prive\u0219te microstructura sa, aceasta prezint\u0103 o dendrit\u0103 mai complex\u0103. Exist\u0103 un spa\u021biu de 20-40 \u03bcm \u00een dentrit\u0103 \u00een compara\u021bie cu Zamak 2. Astfel, aliajele pot turna piese foarte specifice.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Zamak_5_Alloy\"><\/span>Aliaj Zamak 5<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h3><span class=\"ez-toc-section\" id=\"Composition-3\"><\/span>Compozi\u021bie:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Aliajul Zamak 5 con\u021bine 3,8 - 4,3% aluminiu, 0,7 - 1,1% cupru \u0219i 0,035 - 0,06% magneziu. De asemenea, are un con\u021binut moderat de cupru. Acesta variaz\u0103 \u00eentre Zamak 2 \u0219i Zamak 3.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Properties-3\"><\/span>Propriet\u0103\u021bi:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Aliajele de zamac sunt cele care au rezisten\u021b\u0103 echilibrat\u0103 (310 MPa la trac\u021biune) \u0219i turnabilitate. De asemenea, are o forma\u021biune intermetalic\u0103 cupru-aluminiu. Aceasta este ceea ce face adaosul de cupru, care \u00eei cre\u0219te duritatea p\u00e2n\u0103 la 91 HB.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Applications-3\"><\/span>Aplica\u021bii:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Zamak 5 merge bine pentru fabricarea componentelor auto (m\u00e2nere de u\u0219i, piese de carburator) \u0219i hardware. Structura compozi\u021biei sale ofer\u0103 o fluiditate mai bun\u0103, rezult\u00e2nd o porozitate mai redus\u0103.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"ZA8_Alloy\"><\/span>Aliaj ZA8<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h3><span class=\"ez-toc-section\" id=\"Composition-4\"><\/span>Compozi\u021bie:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>8,2 - 8,8% aluminiu, 0,9 - 1,3% cupru \u0219i 0,02 - 0,035% magneziu sunt prezente \u00een compozi\u021bia aliajului ZA8. Acesta este diferit de aliajele zamak din cauza cantit\u0103\u021bii excesive de aluminiu.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Properties-4\"><\/span>Propriet\u0103\u021bi:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>ZA8 func\u021bioneaz\u0103 la 120 \u00b0C. Exist\u0103 o rezisten\u021b\u0103 la trac\u021biune de 386 Mpa. Microstructura 40% a acestui aliaj este alc\u0103tuit\u0103 din faza eutectic\u0103 aluminiu-zinc. O alt\u0103 caracteristic\u0103 este de a \u00eembun\u0103t\u0103\u021bi rezisten\u021ba la fluaj.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Applications-4\"><\/span>Aplica\u021bii:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Pute\u021bi produce piese turnate de \u00eenalt\u0103 presiune cu aliaj ZA8. De exemplu, carcase \u0219i suporturi de pompe. Acesta ofer\u0103 stabilitate termic\u0103, deoarece \u00een structura sa exist\u0103 dendrite distan\u021bate cu 50-80 \u03bcm.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Superloy\"><\/span>Superloy<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h3><span class=\"ez-toc-section\" id=\"Composition-5\"><\/span>Compozi\u021bie:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Categoria superloi de zinc const\u0103 din 6,6 - 7,2% aluminiu, 3,2 - 3,8% cupru \u0219i &lt;0,005% magneziu. Elementul de cupru mai ridicat al acestui aliaj seam\u0103n\u0103 cu alama. Acest lucru se datoreaz\u0103 faptului c\u0103 are aceea\u0219i preten\u021bie.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Properties-5\"><\/span>Propriet\u0103\u021bi:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Con\u021binutul de cupru-aluminiu precipit\u0103 \u00een ob\u021binerea durit\u0103\u021bii 120 \u00een Superloy. Acesta con\u021bine un amestec de faze alfa \u0219i beta. Acesta este motivul pentru care rezisten\u021ba la trac\u021biune este de 440 Mpa.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Applications-5\"><\/span>Aplica\u021bii:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Acest tip de con\u021binut de zinc este potrivit pentru turnarea pieselor grele, cum ar fi suporturile de motor \u0219i uneltele industriale. Se solidific\u0103 lent. Acest lucru \u00eenseamn\u0103 c\u0103 promoveaz\u0103 structura dendritic\u0103 ca rezultat.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"AcuZinc_5_Alloy\"><\/span>Aliaj AcuZinc 5<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h3><span class=\"ez-toc-section\" id=\"Composition-6\"><\/span>Compozi\u021bie:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>2,8 - 3,3% aluminiu, 5,0 - 6,0% cupru \u0219i 0,025 - 0,05% combina\u021bii de magneziu formeaz\u0103 aliajul AcuZinc 5. \u00cen compara\u021bie cu majoritatea aliajelor de zinc, acesta con\u021bine un con\u021binut excesiv de cupru.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Properties-6\"><\/span>Propriet\u0103\u021bi:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Con\u021binutul mai ridicat de cupru formeaz\u0103 o matrice cupru-zinc. Aceasta constituie o rezisten\u021b\u0103 la trac\u021biune de 350 Mpa. Con\u021binutul de magneziu exist\u0103 pentru a rafina structurile. De asemenea, acesta diminueaz\u0103 riscul de contrac\u021bie.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Applications-6\"><\/span>Aplica\u021bii:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Acest metal de zinc este deosebit de util pentru fabricarea rulmen\u021bilor \u0219i a buc\u0219elor. Aceasta este configura\u021bia utilajului utilizat. Exist\u0103 o faz\u0103 eutectic\u0103 ternar\u0103. Aceasta func\u021bioneaz\u0103 pentru a genera un coeficient de frecare sc\u0103zut de p\u00e2n\u0103 la 0,1-0,15.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Properties_of_Zinc_Alloys\"><\/span>Propriet\u0103\u021bi ale aliajelor de zinc<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Mechanical_Properties\"><\/span>Propriet\u0103\u021bi mecanice<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Tensiunea de rupere a aliajelor pe baz\u0103 de zinc fluctueaz\u0103 \u00eentre 283 MPa (Zamak 3) \u0219i 440 MPa (Superloy). Valoarea sa de alungire este de 10-20%.<\/p>\n<p>De asemenea, aliajul Zamak 5 arhiveaz\u0103 310 MPa rezisten\u021b\u0103 la trac\u021biune cu o duritate de 91 HB.<\/p>\n<p>Piesele de zinc turnate sub presiune prezint\u0103 o rezisten\u021b\u0103 mult mai mare (15%) dec\u00e2t cele turnate \u00een nisip. Turnarea \u00een nisip cauzeaz\u0103, de asemenea, varia\u021bii \u00een forme, deoarece se r\u0103ce\u0219te mai devreme.<\/p>\n<p>Metalul ZA8 face fa\u021b\u0103 solicit\u0103rilor mari. Acest lucru \u00eel face ideal pentru aplica\u021bii cu sarcin\u0103 mare, cum ar fi carcasele pompelor.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Corrosion_Resistance\"><\/span>Rezisten\u021ba la coroziune<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Mecanismul de coroziune (prezentat \u00een imagine) descrie comportamentul electrochimic al aliajelor de zinc. \u00cen care oxidul de zinc la anozi (Zn \u2192 Zn\u00b2\u207a + 2e-).<\/p>\n<p>Motivul pentru care oxigenul se reduce este datorit\u0103 catozilor (O\u2082 + 2H\u2082O + 4e- \u2192 4OH-). C\u00e2nd se formeaz\u0103 un strat protector, ionii de clorur\u0103 (Cl-) produc ZnCl\u2082 solubil. Aceasta perturb\u0103 acest strat \u0219i provoac\u0103 formarea de gropi \u00een jur de 0,1-0,5 mm\/an.<\/p>\n<p>Prezen\u021ba con\u021binutului de aluminiu \u00een metalul de zinc (Zamak) stabilizeaz\u0103 acest scut. Acest lucru se datoreaz\u0103 capacit\u0103\u021bii sale de a rezista la coroziune (30%).<\/p>\n<p>\u00centre timp, cre\u0219terea riscurilor de dezincificare \u00een mediul marin se datoreaz\u0103 elementelor de cupru.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Thermal_and_Electrical_Properties\"><\/span>Propriet\u0103\u021bi termice \u0219i electrice<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u00cen cazul coeficientului de dilatare termic\u0103, zamacul con\u021bine 23 \u00d7 10-\u2076\/\u00b0C (ZA8) p\u00e2n\u0103 la 29 \u00d7 10-\u2076\/\u00b0C. Ad\u0103ugarea de elemente de aliere modific\u0103 conductivitatea electric\u0103 real\u0103 sau o scade.<\/p>\n<p>De exemplu, ad\u0103ugarea de cupru \u00een zamak 3 pentru a forma zamak 2 scade de la 28% IACS la 26%.<\/p>\n<p>Cu toate acestea, stabilitatea termic\u0103 de aproximativ 110-125 W\/m-K (sub 100\u00b0C) a acestor aliaje nu se schimb\u0103. Din acest motiv, ele sunt potrivite pentru o mare varietate de piese, inclusiv radiatoare.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Fatigue_Resistance\"><\/span>Rezisten\u021ba la oboseal\u0103<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Fiecare aliaj de zinc metalic de p\u00e2n\u0103 acum a avut limite de rezisten\u021b\u0103 la oboseal\u0103. Aceasta fluctueaz\u0103 \u00eentre 120 Mpa pentru zamak 3 \u0219i 180 Mpa pentru Superloy.<\/p>\n<p><a href=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/Add-a-heading-2025-03-30T084419.091.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-18255 size-full\" src=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/Add-a-heading-2025-03-30T084419.091.png\" alt=\"testarea rezisten\u021bei la oboseal\u0103 \u00een zinc\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/Add-a-heading-2025-03-30T084419.091.png 800w, https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/Add-a-heading-2025-03-30T084419.091-480x300.png 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 800px, 100vw\" \/><\/a><\/p>\n<p>Tehnicile de turnare \u00eembun\u0103t\u0103\u021besc rezisten\u021ba la oboseal\u0103 cu p\u00e2n\u0103 la 20%. Acest lucru se datoreaz\u0103 comprim\u0103rii tensiunilor reziduale.<\/p>\n<p>\u00centre timp, alte tehnici, cum ar fi prelucrarea, trebuie s\u0103 func\u021bioneze pentru recoacerea de reducere a tensiunilor. Astfel \u00eenc\u00e2t s\u0103 se opreasc\u0103 ini\u021bial fisurarea<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Zamak_2_3_5_ZA-8_Superloy_and_AcuZinc_5_Comparison_Table\"><\/span><strong>Tabel comparativ Zamak 2, 3, 5, ZA-8, Superloy \u0219i AcuZinc 5<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Tabelul 1: Gama de compozi\u021bii nominale (% \u00een greutate)<\/p>\n<table dir=\"ltr\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\" data-sheets-root=\"1\" data-sheets-baot=\"1\">\n<colgroup>\n<col width=\"100\" \/>\n<col width=\"100\" \/>\n<col width=\"100\" \/>\n<col width=\"100\" \/>\n<col width=\"100\" \/>\n<col width=\"100\" \/>\n<col width=\"100\" \/><\/colgroup>\n<tbody>\n<tr>\n<td>Element<\/td>\n<td>Zamak 2<\/td>\n<td>Zamak 3<\/td>\n<td>Zamak 5<\/td>\n<td>ZA-8<\/td>\n<td>Superloy (ILZRO 16)<\/td>\n<td>AcuZinc 5<\/td>\n<\/tr>\n<tr>\n<td>Aluminiu (Al)<\/td>\n<td>3.9 - 4.3<\/td>\n<td>3.9 - 4.3<\/td>\n<td>3.9 - 4.3<\/td>\n<td>8.0 - 8.8<\/td>\n<td>1.0 - 1.5<\/td>\n<td>5.2 - 5.8<\/td>\n<\/tr>\n<tr>\n<td>Cupru (Cu)<\/td>\n<td>2.7 - 3.3<\/td>\n<td>0.03 - 0.06<\/td>\n<td>0.75 - 1.25<\/td>\n<td>0.8 - 1.3<\/td>\n<td>1.5 - 2.5<\/td>\n<td>2.5 - 3.0<\/td>\n<\/tr>\n<tr>\n<td>Magneziu (Mg)<\/td>\n<td>0.02 - 0.05<\/td>\n<td>0.03 - 0.06<\/td>\n<td>0.03 - 0.06<\/td>\n<td>0.015 - 0.03<\/td>\n<td>0.01 - 0.04<\/td>\n<td>0.025 - 0.05<\/td>\n<\/tr>\n<tr>\n<td>Titan (Ti)<\/td>\n<td>-<\/td>\n<td>-<\/td>\n<td>-<\/td>\n<td>-<\/td>\n<td>0.15 - 0.25<\/td>\n<td>-<\/td>\n<\/tr>\n<tr>\n<td>Crom (Cr)<\/td>\n<td>-<\/td>\n<td>-<\/td>\n<td>-<\/td>\n<td>-<\/td>\n<td>0.05 - 0.15<\/td>\n<td>-<\/td>\n<\/tr>\n<tr>\n<td>Fier (Fe) max<\/td>\n<td>0.02<\/td>\n<td>0.02<\/td>\n<td>0.02<\/td>\n<td>0.03<\/td>\n<td>0.02<\/td>\n<td>0.02<\/td>\n<\/tr>\n<tr>\n<td>Plumb (Pb) max<\/td>\n<td>0.003<\/td>\n<td>0.003<\/td>\n<td>0.003<\/td>\n<td>0.003<\/td>\n<td>0.003<\/td>\n<td>0.003<\/td>\n<\/tr>\n<tr>\n<td>Cadmiu (Cd) max<\/td>\n<td>0.003<\/td>\n<td>0.003<\/td>\n<td>0.003<\/td>\n<td>0.003<\/td>\n<td>0.003<\/td>\n<td>0.003<\/td>\n<\/tr>\n<tr>\n<td>Staniu (Sn) max<\/td>\n<td>0.001<\/td>\n<td>0.001<\/td>\n<td>0.001<\/td>\n<td>0.001<\/td>\n<td>0.001<\/td>\n<td>0.001<\/td>\n<\/tr>\n<tr>\n<td>Zinc (Zn)<\/td>\n<td>Echilibru<\/td>\n<td>Echilibru<\/td>\n<td>Echilibru<\/td>\n<td>Echilibru<\/td>\n<td>Echilibru<\/td>\n<td>Echilibru<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4><span class=\"ez-toc-section\" id=\"Table_2_Mechanical_Properties_Typical_Die-Cast_Values\"><\/span>Tabelul 2: Propriet\u0103\u021bi mecanice (valori tipice de turnare sub presiune)<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<table dir=\"ltr\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\" data-sheets-root=\"1\" data-sheets-baot=\"1\">\n<colgroup>\n<col width=\"100\" \/>\n<col width=\"100\" \/>\n<col width=\"100\" \/>\n<col width=\"100\" \/>\n<col width=\"100\" \/>\n<col width=\"100\" \/>\n<col width=\"100\" \/>\n<col width=\"100\" \/><\/colgroup>\n<tbody>\n<tr>\n<td>Proprietate<\/td>\n<td>Unitate<\/td>\n<td>Zamak 2<\/td>\n<td>Zamak 3<\/td>\n<td>Zamak 5<\/td>\n<td>ZA-8<\/td>\n<td>Superloy (ILZRO 16)<\/td>\n<td>AcuZinc 5<\/td>\n<\/tr>\n<tr>\n<td>Rezisten\u021ba la trac\u021biune<\/td>\n<td>MPa (ksi)<\/td>\n<td>359 (52)<\/td>\n<td>283 (41)<\/td>\n<td>331 (48)<\/td>\n<td>374 (54)\u00b9<\/td>\n<td>~240-275 (35-40)<\/td>\n<td>\n<div>\n<div>~410-450 (60-65)<\/div>\n<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>Rezisten\u021ba la rupere (0.2%)<\/td>\n<td>MPa (ksi)<\/td>\n<td>290 (42)<\/td>\n<td>218 (32)<\/td>\n<td>266 (39)<\/td>\n<td>290 (42)\u00b9<\/td>\n<td>~180-220 (26-32)<\/td>\n<td>\n<div>\n<div>~360-400 (52-58)<\/div>\n<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>Duritate<\/td>\n<td>BHN (10mm\/500kg)<\/td>\n<td>~100<\/td>\n<td>~82<\/td>\n<td>~91<\/td>\n<td>~103\u00b9<\/td>\n<td>~80-90<\/td>\n<td>~110-120<\/td>\n<\/tr>\n<tr>\n<td>Alungire (% \u00een 50mm\/2\u2033)<\/td>\n<td>%<\/td>\n<td>~7<\/td>\n<td>~10<\/td>\n<td>~7<\/td>\n<td>~10\u00b9<\/td>\n<td>~10-20<\/td>\n<td>~5-8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4 data-sourcepos=\"37:1-37:32\"><span class=\"ez-toc-section\" id=\"Table_3_Physical_Properties\"><\/span><strong>Tabelul 3: Propriet\u0103\u021bi fizice<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<table dir=\"ltr\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\" data-sheets-root=\"1\" data-sheets-baot=\"1\">\n<colgroup>\n<col width=\"100\" \/>\n<col width=\"100\" \/>\n<col width=\"100\" \/>\n<col width=\"100\" \/>\n<col width=\"100\" \/>\n<col width=\"100\" \/>\n<col width=\"100\" \/>\n<col width=\"100\" \/><\/colgroup>\n<tbody>\n<tr>\n<td>Proprietate<\/td>\n<td>Unitate<\/td>\n<td>Zamak 2<\/td>\n<td>Zamak 3<\/td>\n<td>Zamak 5<\/td>\n<td>ZA-8<\/td>\n<td>Superloy (ILZRO 16)<\/td>\n<td>AcuZinc 5<\/td>\n<\/tr>\n<tr>\n<td>Intervalul de topire<\/td>\n<td>\u00b0C (\u00b0F)<\/td>\n<td>380-386 (717-727)<\/td>\n<td>381-387 (718-728)<\/td>\n<td>380-386 (717-727)<\/td>\n<td>375-387 (707-728)<\/td>\n<td>~378-385 (712-725)\u00b2<\/td>\n<td>\n<div>\n<div>~379-388 (714-730)\u00b2<\/div>\n<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>Densitate<\/td>\n<td>g\/cm\u00b3 (lb\/in\u00b3)<\/td>\n<td>6.7 (0.242)<\/td>\n<td>6.6 (0.238)<\/td>\n<td>6.6 (0.238)<\/td>\n<td>6.3 (0.227)<\/td>\n<td>~6.8 (0.246)\u00b2<\/td>\n<td>~6.6 (0.238)\u00b2<\/td>\n<\/tr>\n<tr>\n<td>Conductivitate termic\u0103<\/td>\n<td>W\/m-K (BTU\/hr-ft-\u00b0F)<\/td>\n<td>105 (60.7)<\/td>\n<td>113 (65.3)<\/td>\n<td>109 (63.0)<\/td>\n<td>115 (66.5)<\/td>\n<td>~110 (63.5)\u00b2<\/td>\n<td>~108 (62.4)\u00b2<\/td>\n<\/tr>\n<tr>\n<td>Conductivitate electric\u0103<\/td>\n<td>% IACS<\/td>\n<td>~26%<\/td>\n<td>~27%<\/td>\n<td>~26%<\/td>\n<td>~27.7%<\/td>\n<td>~27%\u00b2<\/td>\n<td>~26%\u00b2<\/td>\n<\/tr>\n<tr>\n<td>C\u0103ldur\u0103 specific\u0103<\/td>\n<td>J\/kg-K (BTU\/lb-\u00b0F)<\/td>\n<td>419 (0.10)<\/td>\n<td>419 (0.10)<\/td>\n<td>419 (0.10)<\/td>\n<td>435 (0.104)<\/td>\n<td>~420 (0.10)\u00b2<\/td>\n<td>~420 (0.10)\u00b2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4><span class=\"ez-toc-section\" id=\"Comparison_of_Zinc_Alloy_Zamak_5_vs_Alternative_Materials\"><\/span>Compara\u021bie \u00eentre aliajul de zinc (Zamak 5) \u0219i materialele alternative<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<table dir=\"ltr\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\" data-sheets-root=\"1\" data-sheets-baot=\"1\">\n<colgroup>\n<col width=\"100\" \/>\n<col width=\"100\" \/>\n<col width=\"100\" \/>\n<col width=\"100\" \/>\n<col width=\"100\" \/>\n<col width=\"100\" \/><\/colgroup>\n<tbody>\n<tr>\n<td>Metric<\/td>\n<td>Aliaj de zinc (Zamak 5)<\/td>\n<td>Aliaj de aluminiu (A380)<\/td>\n<td>Aliaj de magneziu (AZ91D)<\/td>\n<td>Alam\u0103 turnat\u0103 (galben tipic)<\/td>\n<td>\n<div>\n<div>Materiale plastice prelucrate (general)<\/div>\n<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>Cost relativ (cost par\u021bial)\u00b9<\/td>\n<td>Moderat<\/td>\n<td>De la sc\u0103zut la moderat<\/td>\n<td>Moderat p\u00e2n\u0103 la ridicat<\/td>\n<td>De la ridicat la foarte ridicat<\/td>\n<td>\n<div>\n<div>De la sc\u0103zut la ridicat (depinde foarte mult de volum)<\/div>\n<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>Densitate (g\/cm\u00b3)<\/td>\n<td>\u00cenalt\u0103 (~6.6)<\/td>\n<td>Sc\u0103zut (~2.7)<\/td>\n<td>Foarte sc\u0103zut\u0103 (~1,8)<\/td>\n<td>Foarte ridicat (~8.4-8.7)<\/td>\n<td>\n<div>\n<div>Foarte sc\u0103zut (~1.0 - 1.5+)<\/div>\n<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>Rezisten\u021b\u0103 \/ Rigiditate<\/td>\n<td>Bun<\/td>\n<td>Bun (rezisten\u021b\u0103\/greutate excelent\u0103)<\/td>\n<td>Corect p\u00e2n\u0103 la bun (rezisten\u021b\u0103\/greutate excelent\u0103)<\/td>\n<td>De la bun la excelent<\/td>\n<td>\n<div>\n<div>De la slab\u0103 la bun\u0103 (extrem de variabil\u0103)<\/div>\n<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>Temperatura maxim\u0103 de serviciu \/ Rezisten\u021ba la fluaj<\/td>\n<td>Corect (limitat &gt;100\u00b0C)<\/td>\n<td>Bun (utilizabil ~200\u00b0C)<\/td>\n<td>Corect (limitat &gt;120\u00b0C, \u00een func\u021bie de aliaj)<\/td>\n<td>Excelent\u0103<\/td>\n<td>\n<div>\n<div>De la slab\u0103 la slab\u0103 (foarte variabil\u0103)<\/div>\n<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>Turnabilitate \/ turnabilitate\u00b2<\/td>\n<td>Excelent (camer\u0103 fierbinte, pere\u021bi sub\u021biri, durata de via\u021b\u0103 a matri\u021bei, durata ciclului, toleran\u021be)<\/td>\n<td>Bun (camer\u0103 rece, fluiditate bun\u0103, cicluri mai lente, durat\u0103 de via\u021b\u0103 mai scurt\u0103 a matri\u021bei)<\/td>\n<td>Foarte bun (posibil camer\u0103 fierbinte, pere\u021bi sub\u021biri, cicluri rapide, are nevoie de protec\u021bie)<\/td>\n<td>Corect (turnare sub presiune dificil\u0103, alte metode mai lente)<\/td>\n<td>\n<div>\n<div>Excelent (turnare prin injec\u021bie, forme complexe, cicluri rapide)<\/div>\n<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>Op\u021biuni de finisare (placare, vopsire etc.)<\/td>\n<td>Excelent (Cel mai u\u0219or de placat\/finisat)<\/td>\n<td>Bun (Anodizare posibil\u0103, necesit\u0103 preg\u0103tire pentru placare)<\/td>\n<td>Corect (necesit\u0103 tratament special, risc de coroziune)<\/td>\n<td>Excelent (se lustruie\u0219te bine, u\u0219or de placat)<\/td>\n<td>\n<div>\n<div>Corect p\u00e2n\u0103 la bun (culoare integral\u0103, necesit\u0103 specifica\u021bii pentru placare\/vopsire)<\/div>\n<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>Avantaje cheie<\/td>\n<td>Turnabilitate, finisare, acurate\u021be dimensional\u0103, cost moderat<\/td>\n<td>Greutate redus\u0103, rezisten\u021b\u0103\/greutate, rezisten\u021b\u0103 la temperatur\u0103, cost<\/td>\n<td>Cea mai mic\u0103 greutate, rezisten\u021b\u0103\/greutate, turnabilitate (pere\u021bi sub\u021biri)<\/td>\n<td>Rezisten\u021b\u0103, rezisten\u021b\u0103 la coroziune, propriet\u0103\u021bi de sus\u021binere, estetic\u0103<\/td>\n<td>\n<div>\n<div>Cea mai mic\u0103 greutate, cost redus (volum ridicat), flexibilitate \u00een proiectare, culoare integral\u0103<\/div>\n<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>Principalele dezavantaje<\/td>\n<td>Densitate ridicat\u0103, rezisten\u021b\u0103 la temperaturi sc\u0103zute<\/td>\n<td>Temperatur\u0103\/coste de prelucrare mai ridicate, durat\u0103 de via\u021b\u0103 a matri\u021bei mai redus\u0103 dec\u00e2t zincul<\/td>\n<td>Cost, Susceptibilitate la coroziune, Limite de temperatur\u0103, Risc de inflamabilitate (topit)<\/td>\n<td>Costuri ridicate, densitate ridicat\u0103, turnare dificil\u0103<\/td>\n<td>\n<div>\n<div>Rezisten\u021b\u0103\/rezisten\u021b\u0103 sc\u0103zut\u0103, rezisten\u021b\u0103 sc\u0103zut\u0103 la temperatur\u0103, fluaj<\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Manufacturing_Processes_for_Zinc_Alloys\"><\/span>Procese de fabrica\u021bie pentru aliaje de zinc<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"A_Die_Casting\"><\/span>A.  Turnare sub presiune<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h3><span class=\"ez-toc-section\" id=\"Hot_Chamber_Die_Casting\"><\/span>Hot Chamber Die Casting:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Procesul care poate for\u021ba aliajul de zinc topit \u00een cavitatea matri\u021bei pentru a prelua profilurile produsului este o camer\u0103 fierbinte <a href=\"https:\/\/aludiecasting.com\/ro\/turnare-zinc-in-vid\/\">zinc turnare sub presiune<\/a>. Acesta utilizeaz\u0103 sisteme cu g\u00e2t de g\u00e2sc\u0103 \u0219i cu piston pentru a curge lichidul.<\/p>\n<p>Acest proces merge bine pentru turnarea metalelor cu puncte de topire mai mici. Acesta este motivul pentru care se potrive\u0219te zincului. \u00ce\u0219i finalizeaz\u0103 ciclurile de 50-100 lovituri\/or\u0103.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Cold_Chamber_Die_Casting\"><\/span>Camer\u0103 rece turnare sub presiune:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Turnarea \u00een camer\u0103 rece nu este ca o camer\u0103 fierbinte; se potrive\u0219te aliajelor cu punct de topire mai ridicat. Exist\u0103 un cuptor separat pentru topirea metalului \u0219i turnarea manual\u0103 a acestuia \u00een matri\u021b\u0103.<\/p>\n<p>Este mult mai lent\u0103 dec\u00e2t turnarea \u00een camer\u0103 fierbinte \u0219i poate produce \u00eentre 20 \u0219i 40 de lovituri pe or\u0103. Cu toate acestea, exist\u0103 mai pu\u021bin\u0103 contaminare cu fier \u00een aliajele de turnare a zincului.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"B_Gravity_Casting\"><\/span>B.  Turnare prin gravita\u021bie<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u00cen procesul de turnare prin gravita\u021bie, metalurgi\u0219tii r\u0103cesc piesele turnate folosind convec\u021bia natural\u0103. Pentru aceasta, ei creeaz\u0103 rate de r\u0103cire de 1-10 \u00b0C\/s.<\/p>\n<p>Apar dendrite grosiere, care scad, de asemenea, rezisten\u021ba la trac\u021biune \u00een compara\u021bie cu obiectele turnate sub presiune. Totu\u0219i, acest lucru men\u021bine ductilitatea \u0219i chiar contribuie la \u00eembun\u0103t\u0103\u021birea acesteia.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"C_Sand_Casting\"><\/span>C.  Turnare \u00een nisip<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Cel mai popular \u0219i mai simplu mod de turnare este turnarea cu nisip. Aceasta necesit\u0103 mai pu\u021bin\u0103 for\u021b\u0103 de munc\u0103 \u0219i doar mai pu\u021bini pa\u0219i cheie pentru a turna piese din zinc.<\/p>\n<p>\u00cen acest caz, produc\u0103torii toarn\u0103 zinc topit \u00een matri\u021ba de \u0219lefuire \u0219i a\u0219teapt\u0103 p\u00e2n\u0103 c\u00e2nd acesta se r\u0103ce\u0219te. Apoi, matri\u021ba este deschis\u0103 pentru a \u00eendep\u0103rta piesa finit\u0103.<\/p>\n<p>Turnarea cu nisip dureaz\u0103 multe ore \u0219i se r\u0103ce\u0219te lent, \u00een jur de 0,1-1 \u00b0C\/s. Acesta este motivul pentru formarea unei faze eutectice mari. Avantajele majore ale pieselor ZA27 turnate \u00een nisip sunt c\u0103 au o stabilitate termic\u0103 mai bun\u0103 dec\u00e2t turnarea sub presiune.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"D_Surface_Finishing\"><\/span>D.  Finisarea suprafe\u021bei<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Suprafa\u021ba este foarte important\u0103 \u00een ceea ce prive\u0219te \u00eembun\u0103t\u0103\u021birea calit\u0103\u021bii \u0219i propriet\u0103\u021bilor aliajelor. De exemplu, electroplacarea (5-15\u03bcm zinc-nichel) opre\u0219te coroziunea de 5 ori mai bine.<\/p>\n<p>\u00cen cazul ob\u021binerii unui aspect frumos, acoperirea cu pulbere (50-80\u03bcm) este valoroas\u0103. De asemenea, cre\u0219te num\u0103rul de aliaje care supravie\u021buiesc testelor de pulverizare salin\u0103 de peste 500 de ore, cum ar fi <a href=\"https:\/\/meridian.allenpress.com\/corrosion\/article-abstract\/68\/3\/036001-1\/162716\" target=\"_blank\" rel=\"noopener\">ASTM B117<\/a>.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"E_Machining\"><\/span>E.  Prelucrare<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Compozi\u021bia f\u0103r\u0103 plumb a aliajelor de zinc precum Zamak 3 ofer\u0103 80% o prelucrabilitate mai bun\u0103 dec\u00e2t alama cu t\u0103iere liber\u0103. De asemenea, reduce rugozitatea suprafe\u021bei cu 0,8-1,6 \u03bcm Ra.<\/p>\n<p>Cu toate acestea, aliajele cu con\u021binut ridicat de cupru care con\u021bin intermetalice abrazive<strong>,<\/strong> precum Zamak 2, au nevoie de unelte din carbur\u0103 pentru prelucrare.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"F_Recycling\"><\/span>F.   Reciclare<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Aliajele de zinc pot fi reutilizate dup\u0103 \u00eencheierea duratei lor de via\u021b\u0103, deoarece con\u021bin propriet\u0103\u021bi reciclabile 100%. Acestea se retopesc la 420-450 \u00b0C. Pute\u021bi reduce apari\u021bia zgurii p\u00e2n\u0103 la &lt;2% din greutatea topiturii, concentr\u00e2ndu-v\u0103 pe fluxarea corespunz\u0103toare. De asemenea, aliajul \u00ee\u0219i poate men\u021bine propriet\u0103\u021bile mecanice prin peste 7 cicluri de retopire.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Advantages_of_Zinc_Alloys\"><\/span>Avantajele aliajelor de zinc<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Cost-Effectiveness\"><\/span>Cost-eficacitate<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Aliajele de zinc pot economisi p\u00e2n\u0103 la 40-60% comparativ cu aluminiul sau o\u021belul inoxidabil pentru fabricarea pieselor de dimensiuni compacte. Cost\u0103 de obicei 2,50-3,50\/kg fa\u021b\u0103 de 5-8\/kg pentru \u00eenlocuitori.<\/p>\n<p>De asemenea, selectarea op\u021biunilor de turnare sub presiune face ca rata acesteia s\u0103 scad\u0103 mai mult. Dar pre\u021burile variaz\u0103 \u00een func\u021bie de tipurile de aliaje, proiecte sau alte nevoi de produc\u021bie.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Corrosion_Resistance_and_Durability\"><\/span>Rezisten\u021b\u0103 la coroziune \u0219i durabilitate<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Zamak poate supravie\u021bui peste 500 de ore \u00een testele de pulverizare salin\u0103, comparativ cu o\u021belul moale (10x). De exemplu, aplica\u021biile de zinc marin corodeaz\u0103 foarte pu\u021bin, p\u00e2n\u0103 la &lt;0,1 mm\/an \u00een <strong>de coast\u0103<\/strong> medii.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"High_Strength-to-Weight_Ratio\"><\/span>Raport ridicat rezisten\u021b\u0103\/greutate<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Cu o bun\u0103 rezisten\u021b\u0103 la trac\u021biune, piesele din aliaje de zinc au o densitate de 6,6-7,1 g\/cm\u00b3. Aceasta permite o rezisten\u021b\u0103 comparabil\u0103. C\u0103 fonta are o densitate de 7,2 g\/cm\u00b3. Pentru aceasta, func\u021bioneaz\u0103 la o greutate 20% mai mic\u0103.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Damping_Capacity\"><\/span>Capacitatea de amortizare<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Zincul este util pentru fabricarea suporturilor auto \u0219i a bazelor de ma\u0219ini. Acest lucru se datoreaz\u0103 faptului c\u0103 poate amortiza 30% mai multe vibra\u021bii dec\u00e2t alternativele precum aluminiul. Acestea reduc zgomotul cu p\u00e2n\u0103 la 15-20 dB.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Challenges_and_Limitations_of_Zinc_Alloys\"><\/span>Provoc\u0103ri \u0219i limit\u0103ri ale aliajelor de zinc<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a href=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/Add-a-heading-2025-03-30T084805.642.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-18256 size-full\" src=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/Add-a-heading-2025-03-30T084805.642.png\" alt=\"defecte \u00een turnarea zincului\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/Add-a-heading-2025-03-30T084805.642.png 800w, https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/Add-a-heading-2025-03-30T084805.642-480x300.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=\"Corrosion_Mechanisms\"><\/span>Mecanisme de coroziune<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Aceste aliaje pot prezenta coroziune galvanic\u0103 dac\u0103 sunt prezente metale mai nobile, cum ar fi o\u021belul. Mediile bogate \u00een cloruri cauzeaz\u0103 pitting (0,1-0,3 mm\/an).<\/p>\n<p><a href=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/Add-a-heading-2025-03-30T083428.934.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-18254 size-full\" src=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/Add-a-heading-2025-03-30T083428.934.png\" alt=\"mecanismul de coroziune \u00een turnarea zin\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/Add-a-heading-2025-03-30T083428.934.png 800w, https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/Add-a-heading-2025-03-30T083428.934-480x300.png 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 800px, 100vw\" \/><\/a><\/p>\n<p>Aliajele care con\u021bin mai mult aluminiu se lupt\u0103 cu coroziunea intergranular\u0103 peste 60\u00b0C.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"High-Temperature_Performance\"><\/span>Performan\u021b\u0103 la temperaturi ridicate<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Aceste aliaje \u00ee\u0219i pierd rezisten\u021ba p\u00e2n\u0103 la 40% atunci c\u00e2nd sunt confruntate la 150\u00b0C (Zamak) \u0219i 60% la 200\u00b0C (ZA-8). Grosimea microstructural\u0103 care apare din cauza ciclurilor termice deviaz\u0103 dimensional la 100 de cicluri.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Toxicity_Concerns\"><\/span>Preocup\u0103ri legate de toxicitate<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Expunerea la vapori de zinc duce la febra fumului de metal. De asemenea, ventila\u021bia OSHA este important\u0103 pentru urmele de cadmiu. \u00cen timpul topirii zincului, este necesar un EPI cu filtre P100 \u0219i aspirarea fumului.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Creep_Resistance\"><\/span>Rezisten\u021ba la fluaj<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u00cen ZA-27, deforma\u021bia de fluaj atinge 0,5%, func\u021bion\u00e2nd la 50 mpa dup\u0103 1000 de ore. Majoritatea modelelor complexe reduc tensiunea la limita de curgere. Acestea utilizeaz\u0103 arm\u0103turi de nervur\u0103 pentru a face fa\u021b\u0103 deform\u0103rii.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Concluzie<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Aliajele de zinc joac\u0103 un rol foarte important \u00een fabricarea diferitelor aplica\u021bii. Sunt rentabile, dar ofer\u0103 o turnabilitate \u0219i o rezisten\u021b\u0103 la coroziune excelente. Ca \u0219i alte metale, acestea au anumite limit\u0103ri, dar sunt versatile \u0219i reciclabile. Asigura\u021bi-v\u0103 rezisten\u021ba \u00een diverse sectoare industriale cu metalul ales de dvs.<\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Explora\u021bi aliajele de zinc turnate: Zamak, ZA, AcuZinc \u0219i altele. \u00cen\u021belege\u021bi propriet\u0103\u021bile lor unice, avantajele, limit\u0103rile \u0219i tehnicile de fabrica\u021bie, cum ar fi turnarea sub presiune. <\/p>","protected":false},"author":2,"featured_media":18259,"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":[85],"tags":[],"class_list":["post-18252","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-zinc-alloys"],"_links":{"self":[{"href":"https:\/\/aludiecasting.com\/ro\/wp-json\/wp\/v2\/posts\/18252","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aludiecasting.com\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aludiecasting.com\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aludiecasting.com\/ro\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/aludiecasting.com\/ro\/wp-json\/wp\/v2\/comments?post=18252"}],"version-history":[{"count":0,"href":"https:\/\/aludiecasting.com\/ro\/wp-json\/wp\/v2\/posts\/18252\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aludiecasting.com\/ro\/wp-json\/wp\/v2\/media\/18259"}],"wp:attachment":[{"href":"https:\/\/aludiecasting.com\/ro\/wp-json\/wp\/v2\/media?parent=18252"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aludiecasting.com\/ro\/wp-json\/wp\/v2\/categories?post=18252"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aludiecasting.com\/ro\/wp-json\/wp\/v2\/tags?post=18252"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}