{"id":18283,"date":"2025-03-31T21:19:58","date_gmt":"2025-03-31T21:19:58","guid":{"rendered":"https:\/\/aludiecasting.com\/?p=18283"},"modified":"2025-03-31T21:19:58","modified_gmt":"2025-03-31T21:19:58","slug":"semisolide-turnare-sub-presiune-ssdc-beneficii","status":"publish","type":"post","link":"https:\/\/aludiecasting.com\/ro\/semisolide-turnare-sub-presiune-ssdc-beneficii\/","title":{"rendered":"Turnare semisolid\u0103 sub presiune (SSDC): Beneficii \u0219i aplica\u021bii"},"content":{"rendered":"<p>Turnarea semisolid\u0103 sub presiune (SSDC) presupune injectarea unei suspensii metalice (20-60% solid) la 580-620\u00b0C sub o presiune de 50-100 MPa. Se formeaz\u0103 astfel o microstructur\u0103 globular\u0103, sporind rezisten\u021ba cu p\u00e2n\u0103 la 20%. Ratele de forfecare sunt de obicei sub 10 s-\u00b9, asigur\u00e2nd umplerea controlat\u0103 a matri\u021bei pentru piese precise. Aliajele comune includ aluminiul A356 \u0219i magneziul AZ91D.<\/p>\n<p>Afla\u021bi de ce SSDC este preferat pentru a ob\u021bine rezultate precise. Descoperi\u021bi cum func\u021bioneaz\u0103 \u0219i care sunt principalele sale metode, aplica\u021bii \u0219i avantaje.<\/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\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#What_is_Semi-Solid_Die_Casting\" >Ce este turnarea semisolid\u0103 sub presiune?<\/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\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#_Thixotropy_and_Rheopexy\" >\u00a0Tixotropie \u0219i reopexie<\/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\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#1_Rheocasting_Thixotropic_Behavior\" >1.   Rheocasting (Comportament tixotropic)<\/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\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#2_Thixocasting_Rheopectic_Behavior\" >2.   Tixocasting (Comportament reopectic)<\/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\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#How_does_Shear_Rate_Controls_Flow\" >Cum controleaz\u0103 debitul rata de forfecare?<\/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\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#Solid_Fraction\" >Frac\u021bia solid\u0103<\/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\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#Microstructure_Evolution\" >Evolu\u021bia microstructurii<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/aludiecasting.com\/ro\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#Semi-Solid_Die_Casting_Process\" >Procesul de turnare sub presiune semisolid\u0103<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/aludiecasting.com\/ro\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#Slurry_Generation_Methods\" >Metode de generare a suspensiei<\/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\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#1_Strain-Induced_Melt_Activation_SIMA\" >1.   Activarea topiturii indus\u0103 de efort (SIMA):<\/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\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#2_Magnetohydrodynamic_MHD_Stirring\" >2.   Agitarea magnetohidrodinamic\u0103 (MHD)<\/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\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#3_Cooling_Slope_Casting\" >3.   Turnarea pantei de r\u0103cire<\/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\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#Injection_Unit_Modifications\" >Modific\u0103ri ale unit\u0103\u021bii de injec\u021bie<\/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\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#Die_Design_Considerations\" >Considera\u021bii privind proiectarea matri\u021belor<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/aludiecasting.com\/ro\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#Advantages_of_Semi-Solid_Die_Casting\" >Avantajele turn\u0103rii semisolide sub presiune<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/aludiecasting.com\/ro\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#Smoother_Surfaces_and_Precise_Sizes\" >Suprafe\u021be mai netede \u0219i dimensiuni precise<\/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\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#Stronger_Metal_Structure\" >Structur\u0103 metalic\u0103 mai rezistent\u0103<\/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\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#Fewer_Holes_and_Defects\" >Mai pu\u021bine g\u0103uri \u0219i defecte<\/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\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#Energy_Savings\" >Economii de energie<\/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\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#Lower_Production_Costs\" >Costuri de produc\u021bie mai mici<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/aludiecasting.com\/ro\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#Applications_of_Semi-Solid_Die_Casting\" >Aplica\u021bii ale turn\u0103rii semisolide sub presiune<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/aludiecasting.com\/ro\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#Critical_Automotive_Components\" >Componente auto critice<\/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\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#High-Performance_Aerospace_Parts\" >Piese aerospa\u021biale de \u00eenalt\u0103 performan\u021b\u0103<\/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\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#Measured_Performance_Gains\" >C\u00e2\u0219tiguri de performan\u021b\u0103 m\u0103surate<\/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\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#Growing_Market_Applications\" >Aplica\u021bii de pia\u021b\u0103 \u00een cre\u0219tere<\/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\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#Materials_Used_in_Semi-Solid_Die_Casting\" >Materiale utilizate \u00een turnarea semisolid\u0103 sub presiune<\/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\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#Specific_Alloy_Designations\" >Denumiri specifice ale aliajelor<\/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\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#Rheological_Properties\" >Propriet\u0103\u021bi reologice<\/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\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#Solidification_Behavior\" >Comportamentul de solidificare<\/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\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#Secondary_Processing\" >Prelucrarea secundar\u0103<\/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\/ro\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#Semi-solid_die_Casting_vs_Traditional_Die_Casting\" >Turnarea semisolid\u0103 vs. Turnarea tradi\u021bional\u0103<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/aludiecasting.com\/ro\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#Process_Parameter_Comparison\" >Compararea parametrilor de proces<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/aludiecasting.com\/ro\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#Material_Structure\" >Structura materialului<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-34\" href=\"https:\/\/aludiecasting.com\/ro\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#Cost_Factors\" >Factori de cost<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-35\" href=\"https:\/\/aludiecasting.com\/ro\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#When_to_Choose\" >C\u00e2nd s\u0103 alege\u021bi<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-36\" href=\"https:\/\/aludiecasting.com\/ro\/semisolide-turnare-sub-presiune-ssdc-beneficii\/#Conclusion\" >Concluzie:<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_is_Semi-Solid_Die_Casting\"><\/span>Ce este turnarea semisolid\u0103 sub presiune?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a href=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/semi-solid-die-casting.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-18284 size-large\" src=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/semi-solid-die-casting-1024x1024.jpg\" alt=\"Diagrama turn\u0103rii sub presiune semi-solide\" width=\"1024\" height=\"1024\" title=\"\" srcset=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/semi-solid-die-casting-1024x1024.jpg 1024w, https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/semi-solid-die-casting-980x980.jpg 980w, https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/semi-solid-die-casting-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>Semi-solid <a href=\"https:\/\/aludiecasting.com\/ro\/aluminiu-turnat-sub-presiune-3\/\">turnare sub presiune<\/a> este un proces de fabrica\u021bie. Acesta este utilizat pentru a forma metalul \u00eentr-o stare semisolid\u0103. Aceste piese sunt asem\u0103n\u0103toare unui aluat, con\u021bin\u00e2nd \u00een mod egal forme lichide \u0219i solide. Acest tip de suspensie ajut\u0103 produc\u0103torul s\u0103 produc\u0103 piese complexe, de calitate superioar\u0103. Este utilizat pe scar\u0103 larg\u0103 \u00een industrii, fie c\u0103 este vorba de industria auto sau electronic\u0103 de consum. Piesele SSDC sunt mai puternice \u0219i au aproape zero defecte comparativ cu turnarea tradi\u021bional\u0103.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"_Thixotropy_and_Rheopexy\"><\/span>\u00a0Tixotropie \u0219i reopexie<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h3><span class=\"ez-toc-section\" id=\"1_Rheocasting_Thixotropic_Behavior\"><\/span>1.   Rheocasting (Comportament tixotropic)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Procesul de reocasting este ini\u021biat dup\u0103 ce avem un lingou de metal standard. Acesta poate fi aliajul de aluminiu A356. Metalurgi\u0219tii topesc aceste lingouri la temperatura ini\u021bial\u0103 de 650\u00b0C \u00eentr-un cuptor.<\/p>\n<p><a href=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/rheocasting.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-18285 size-large\" src=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/rheocasting-1024x1024.jpg\" alt=\"diagrama de reocasting\" width=\"1024\" height=\"1024\" title=\"\" srcset=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/rheocasting-1024x1024.jpg 1024w, https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/rheocasting-980x980.jpg 980w, https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/rheocasting-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>C\u00e2nd acest material topit \u00eencepe s\u0103 se r\u0103ceasc\u0103 la o temperatur\u0103 semi-solid\u0103 de 580\u00b0C, lucr\u0103torii folosesc un agitator mecanic, rotindu-l la 500 rpm. F\u0103c\u00e2nd acest lucru, particulele solide se sparg \u00een globule mici. Dimensiunea acestora este de 50-100 microni.<\/p>\n<p>Agitarea produce un comportament tixotropic. Aceasta este turnarea \u00een stare semi-solid\u0103 cu particule solide 40%. Curge foarte u\u0219or atunci c\u00e2nd \u00eempinge\u021bi.<\/p>\n<p>Aceast\u0103 suspensie este utilizat\u0103 ulterior pentru turnarea componentelor versatile ale industriilor, cum ar fi componentele suspensiei auto.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2_Thixocasting_Rheopectic_Behavior\"><\/span>2.   Tixocasting (Comportament reopectic)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u00cen thixocasting, produc\u0103torii folosesc billete prefabricate. Acestea sunt un fel de aliaje, cum ar fi magneziul AZ91D. De obicei, exist\u0103 deja o microstructur\u0103 globular\u0103 adecvat\u0103 \u00een acest material.<\/p>\n<p>Metalurgi\u0219tii au v\u0103zut pentru prima dat\u0103 aceste \u021bagle. Lungimea lor variaz\u0103 \u00een multe cazuri, dar de obicei este de 150 mm. Ei au topit din nou aceste cioburi, aplic\u00e2nd o temperatur\u0103 de 575\u00b0C. Acest lucru se aliniaz\u0103 cu thixocasting-ul standard. Procesul dureaz\u0103 15 minute \u00eentr-un cuptor cu induc\u021bie, p\u00e2n\u0103 c\u00e2nd materialul cap\u0103t\u0103 o form\u0103 semi-solid\u0103 ideal\u0103.<\/p>\n<p>Produc\u0103torii \u00eemping acest material \u00een matri\u021b\u0103 cu 1 m\/s. Acest lucru este destul de diferit de thixotropic, deoarece nu este mai sub\u021bire. \u00cen schimb, este un fel de reopexie.<\/p>\n<p>Acest proces cre\u0219te v\u00e2scozitatea sub forfecare (10%). Acest lucru duce la riscuri reduse de curgere turbulent\u0103 \u0219i de captare a aerului. Atunci c\u00e2nd se toarn\u0103 componente precum carcasele laptopurilor, aceste caracteristici produc suprafe\u021be mai netede.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_does_Shear_Rate_Controls_Flow\"><\/span>Cum controleaz\u0103 debitul rata de forfecare?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Metalele semisolide au <a href=\"https:\/\/link.springer.com\/article\/10.1007\/s00397-008-0268-1\" target=\"_blank\" rel=\"noopener\">rate de forfecare<\/a> sub intervalul tipic de 10 s-\u00b9. Fiind o stare groas\u0103, se mi\u0219c\u0103 \u00eencet \u00eentr-o cavitate de matri\u021b\u0103, umpl\u00e2nd fiecare sec\u021biune \u00een mod corespunz\u0103tor, \u00een special \u00een nevoia de turnare sub\u021bire.<\/p>\n<p>Forfecarea cre\u0219te atunci c\u00e2nd por\u021bile \u00eenguste \u00eemping metalul la viteze mari. Acesta umple matri\u021ba \u00een 0,5 secunde, fabric\u00e2nd produse precise.<\/p>\n<p>Sub\u021bierea prin forfecare este parametrul. Aceasta permite lucr\u0103torilor s\u0103 abordeze fluxul de metal \u00een timpul diferitelor etape ale turn\u0103rii.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Solid_Fraction\"><\/span>Frac\u021bia solid\u0103<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Frac\u021bia solid\u0103 (f\u209b) este propor\u021bia con\u021binutului solid \u00een SSDC. Aceasta este ceea ce produc\u0103torii men\u021bin \u00eentr-un interval fezabil de 20% \u0219i 60%.<\/p>\n<p>Condi\u021biile mai sc\u0103zute sub 20% fac metalul s\u0103 curg\u0103, iar condi\u021biile prea ridicate, mai mari de 60%, duc la o form\u0103 mai dur\u0103. Aceasta cauzeaz\u0103 probleme \u00een matri\u021b\u0103.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Microstructure_Evolution\"><\/span>Evolu\u021bia microstructurii<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/microstructure.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-18286 size-large\" src=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/microstructure-1024x1024.jpg\" alt=\"studiul microstructurii turn\u0103rii semisolide sub presiune\" width=\"1024\" height=\"1024\" title=\"\" srcset=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/microstructure-1024x1024.jpg 1024w, https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/microstructure-980x980.jpg 980w, https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/microstructure-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>\u00cen compara\u021bie cu vechea structur\u0103 dendritic\u0103, metalul semisolid are o microstructur\u0103 globular\u0103 sau de tip rozet\u0103. Particulele sunt de form\u0103 rotund\u0103, permi\u021b\u00e2nd o curgere mai lin\u0103 \u0219i minimiz\u00e2nd defectele. Rezisten\u021ba \u00eembun\u0103t\u0103\u021bit\u0103 \u0219i calitatea fin\u0103 sunt rezultatele de baz\u0103 ale acestui proces \u00een produsele finale.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Semi-Solid_Die_Casting_Process\"><\/span>Procesul de turnare sub presiune semisolid\u0103<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a href=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/semi-solid-die-casting-1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-18287 size-large\" src=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/semi-solid-die-casting-1-1024x1024.jpg\" alt=\"Procesul de turnare sub presiune semi solid\u0103\" width=\"1024\" height=\"1024\" title=\"\" srcset=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/semi-solid-die-casting-1-1024x1024.jpg 1024w, https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/semi-solid-die-casting-1-980x980.jpg 980w, https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/semi-solid-die-casting-1-480x480.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<h3><span class=\"ez-toc-section\" id=\"Slurry_Generation_Methods\"><\/span>Metode de generare a suspensiei<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h3><span class=\"ez-toc-section\" id=\"1_Strain-Induced_Melt_Activation_SIMA\"><\/span>1.   Activarea topiturii indus\u0103 de efort (SIMA):<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Dup\u0103 ce cump\u0103r\u0103 bile standard, produc\u0103torii le filtreaz\u0103 la 300\u00b0 C. Apoi le introduc \u00een cuptoare pentru re\u00eenc\u0103lzire la 580\u00b0 C. \u00cen aceast\u0103 matrice lichid\u0103, se formeaz\u0103 particule sferice (50\u03bcm). Acest lucru este suficient pentru prelucrarea semisolid\u0103.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2_Magnetohydrodynamic_MHD_Stirring\"><\/span>2.   Agitarea magnetohidrodinamic\u0103 (MHD)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Bobinele electromagnetice utilizeaz\u0103 un curent de 500 A. Acest lucru este de lucru pentru a face 600 rpm agitare f\u0103r\u0103 contact. 40% starea solid\u0103 ideal\u0103 este format\u0103 ca urmare a acestui proces, evit\u00e2nd contaminarea.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3_Cooling_Slope_Casting\"><\/span>3.   Turnarea pantei de r\u0103cire<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Produc\u0103torul curge \u00een jos starea topit\u0103 a metalului la 620\u00b0C pe pant\u0103. Aceasta este de obicei o pant\u0103 de cupru cu o pozi\u021bie de 60\u00b0.<\/p>\n<p>Acestea utilizeaz\u0103 o r\u0103cire mai rapid\u0103 pentru a ob\u021bine o suspensie semi-solid\u0103 \u00een mai mult de 3 secunde.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Injection_Unit_Modifications\"><\/span>Modific\u0103ri ale unit\u0103\u021bii de injec\u021bie<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Utiliza\u021bi un tip special de man\u0219on scurt cu acoperiri termice ceramice<strong>. <\/strong>Acestea men\u021bin temperatura suspensiei la 570\u00b0C. Astfel \u00eenc\u00e2t s\u0103 o pute\u021bi turna f\u0103r\u0103 griji pe parcursul fazei de injectare.<\/p>\n<p>\u00cen plus, pistonii proiecta\u021bi cu precizie asigur\u0103 umplerea uniform\u0103 a matri\u021bei. Func\u021bioneaz\u0103 cu o vitez\u0103 critic\u0103 de 0,3-0,8 m\/s. Aceast\u0103 caracteristic\u0103 echilibreaz\u0103 opera\u021biunile \u0219i reduce separarea fazelor d\u0103un\u0103toare. Aceasta se \u00eent\u00e2mpl\u0103 \u00eentre particulele lichide \u0219i solide ale suspensiei.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Die_Design_Considerations\"><\/span>Considera\u021bii privind proiectarea matri\u021belor<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/Add-a-heading-2025-04-01T021043.842.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-18289 size-full\" src=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/Add-a-heading-2025-04-01T021043.842.png\" alt=\"Procesul de turnare sub presiune semi solid\u0103\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/Add-a-heading-2025-04-01T021043.842.png 800w, https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/Add-a-heading-2025-04-01T021043.842-480x300.png 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 800px, 100vw\" \/><\/a><\/p>\n<p>Trebuie s\u0103 utiliza\u021bi o suprafa\u021b\u0103 30% a sec\u021biunii transversale mai mare dec\u00e2t matri\u021bele conven\u021bionale \u00een cazul sistemelor cu poart\u0103. Acest lucru va ajuta la men\u021binerea fluxului adecvat de metale semisolide.<\/p>\n<p>Pentru sistemele de rulare, \u00eencorpora\u021bi curburi treptate. Care are o raz\u0103 de minim 20 mm. F\u0103c\u00e2nd acest lucru, tehnicile vor men\u021bine fluxul laminar al metalului \u0219i vor minimiza turbulen\u021bele.<\/p>\n<p>Vorbind despre fantele de ventila\u021bie, acestea sunt prelucrate cu precizie la o l\u0103\u021bime de 0,1 mm. Acestea vor controla prinderea aerului \u00een timpul turn\u0103rii. \u00cen acela\u0219i timp, acestea rezolv\u0103 \u0219i problemele legate de scurgeri.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Advantages_of_Semi-Solid_Die_Casting\"><\/span>Avantajele turn\u0103rii semisolide sub presiune<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Smoother_Surfaces_and_Precise_Sizes\"><\/span>Suprafe\u021be mai netede \u0219i dimensiuni precise<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Metalul semisolid curge \u00een sec\u021biunile matri\u021bei la o vitez\u0103 controlat\u0103. Aceasta este mult mai lent\u0103 dec\u00e2t metalul lichid. Aceasta reduce, de asemenea, bulele de aer cu p\u00e2n\u0103 la 90 %.<\/p>\n<p>\u00cen compara\u021bie cu turnarea obi\u0219nuit\u0103, acest proces reduce contrac\u021bia (0,5%), care este mai mic\u0103 dec\u00e2t 1,2% la r\u0103cire. Acest lucru ajut\u0103, de asemenea, la realizarea de piese care sunt <a href=\"https:\/\/journals.aps.org\/prl\/abstract\/10.1103\/PhysRevLett.125.194301\" target=\"_blank\" rel=\"noopener\">snap-fit<\/a>.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Stronger_Metal_Structure\"><\/span>Structur\u0103 metalic\u0103 mai rezistent\u0103<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Particulele mici, rotunde, de form\u0103 semi-solid\u0103 se \u00eempacheteaz\u0103 suficient de str\u00e2ns. Acest lucru \u00eenseamn\u0103 c\u0103 au o structur\u0103 mai dens\u0103 cu 20% mai mult\u0103 rezisten\u021b\u0103 la \u00eentindere.<\/p>\n<p>\u00cel pute\u021bi \u00eendoi cu mai mult\u0103 for\u021b\u0103 15% \u00eenainte de fractur\u0103. Aceste piese dureaz\u0103 30% mai mult, rezist\u00e2nd la solicit\u0103ri repetate.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Fewer_Holes_and_Defects\"><\/span>Mai pu\u021bine g\u0103uri \u0219i defecte<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Exist\u0103 aproape zero spa\u021bii goale (1 p\u00e2n\u0103 la 2 %) \u00een interiorul SSDC. \u00centre timp, turnarea sub presiune obi\u0219nuit\u0103 are o \u0219ans\u0103 de 5 p\u00e2n\u0103 la 8 procente.<\/p>\n<p>Bulele de aer, g\u0103urile, contrac\u021biile, cr\u0103p\u0103turile \u0219i petele de suprafa\u021b\u0103 aspre sunt eliminate datorit\u0103 acestui proces.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Energy_Savings\"><\/span>Economii de energie<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Trebuie s\u0103 \u0219ti\u021bi c\u0103 o alt\u0103 caracteristic\u0103 sau beneficiu al acestui proces este economisirea energiei. Acesta reduce consumul de energie \u00een mai multe moduri. De exemplu:<\/p>\n<ul>\n<li>Metalul se \u00eenc\u0103lze\u0219te la 580\u00b0C \u00een loc de 680\u00b0C.<\/li>\n<li>Fluxurile mai rapide (25%) utilizeaz\u0103 mai pu\u021bin\u0103 energie.<\/li>\n<li>Acesta reduce de\u0219eurile de material cu p\u00e2n\u0103 la 15 procente \u00een timpul func\u021bion\u0103rii.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Lower_Production_Costs\"><\/span>Costuri de produc\u021bie mai mici<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Deoarece piesele semisolide au nevoie de mai pu\u021bine ma\u0219ini de lustruit, se economisesc p\u00e2n\u0103 la 40% pe acestea.<\/p>\n<p>Din produc\u021bia lor, 5% de piese pot fi respinse. Adic\u0103 mai pu\u021bin de 15 % din acele procese normale.<\/p>\n<p>Pute\u021bi utiliza matri\u021bele SSDC de \u00eenc\u0103 50000 de ori \u00een loc de doar 30000 de ori.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Applications_of_Semi-Solid_Die_Casting\"><\/span>Aplica\u021bii ale turn\u0103rii semisolide sub presiune<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Critical_Automotive_Components\"><\/span>Componente auto critice<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Componentele turn\u0103rii semisolide sub presiune \u00een industria auto sunt:<\/p>\n<ul>\n<li>Articula\u021bii de direc\u021bie<\/li>\n<li>Suporturi motor<\/li>\n<li>Carcase de transmisie<\/li>\n<li>Etriere de fr\u00e2n\u0103<\/li>\n<\/ul>\n<p>Acest proces produce piese extrem de complexe cu detalii structurale. De exemplu, subcadrele \u0219i bra\u021bele de suspensie cu design gol.<\/p>\n<p>\u00cen EV (vehicule electrice), piesele sunt carcasele bateriilor \u0219i carcasele motoarelor. Acestea sunt u\u0219oare \u0219i durabile. De asemenea, fac fa\u021b\u0103 vibra\u021biilor constante \u0219i solicit\u0103rilor termice.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"High-Performance_Aerospace_Parts\"><\/span>Piese aerospa\u021biale de \u00eenalt\u0103 performan\u021b\u0103<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Starea semi-solid\u0103 produce componente aerospa\u021biale cu o calitate de precizie. Acestea sunt:<\/p>\n<ul>\n<li>Suporturi pentru aripi<\/li>\n<li>Componente ale trenului de aterizare<\/li>\n<li>Piese pentru motoare cu turbin\u0103<\/li>\n<li>Carcase pentru radare<\/li>\n<li>Dulapuri pentru avionic\u0103<\/li>\n<li>Satelit<\/li>\n<\/ul>\n<p>Acestea sunt durabile \u0219i au o greutate mai mic\u0103. Carcasa sistemului de ghidare a rachetelor le valorific\u0103 pentru capacitatea sa. P\u0103streaz\u0103 toleran\u021be str\u00e2nse asupra mediilor critice.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Measured_Performance_Gains\"><\/span>C\u00e2\u0219tiguri de performan\u021b\u0103 m\u0103surate<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u00cen testele pe teren, etrierele de fr\u00e2n\u0103 turnate semi-solide rezist\u0103 80000 km \u00eenainte de a se uza cu vechea metod\u0103. \u00cen plus, piesele turnate pentru aeronave au 25% mai mult\u0103 rezisten\u021b\u0103 la oboseal\u0103.<\/p>\n<p>Piesele din sectorul auto ob\u021bin o rezisten\u021b\u0103 mai bun\u0103 la impact (15%) \u00een timpul testelor de impact.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Growing_Market_Applications\"><\/span>Aplica\u021bii de pia\u021b\u0103 \u00een cre\u0219tere<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u00cen timp, aplica\u021biile de pia\u021b\u0103 \u00een cre\u0219tere utilizeaz\u0103 SSDC pentru a crea:<\/p>\n<ul>\n<li>Carcase precise pentru antene 5G cu ghiduri de und\u0103 de 0,05 mm.<\/li>\n<li>Tav\u0103 pentru implanturi medicale cu suprafe\u021be rezistente la bacterii.<\/li>\n<li>Carcase pentru motoare de drone cu o mai bun\u0103 disipare a c\u0103ldurii.<\/li>\n<\/ul>\n<p>\u00cen plus, vehiculele electrice utilizeaz\u0103 acest proces pentru a ob\u021bine o planeitate de 0,2 mm. Acest lucru se \u00eent\u00e2mpl\u0103 pe intervale de 300 mm \u00een pl\u0103cile de r\u0103cire ale bateriei.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Materials_Used_in_Semi-Solid_Die_Casting\"><\/span>Materiale utilizate \u00een turnarea semisolid\u0103 sub presiune<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Specific_Alloy_Designations\"><\/span>Denumiri specifice ale aliajelor<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Aluminiul A356 (AlSi7Mg) \u0219i magneziul AZ91D sunt aliajele care func\u021bioneaz\u0103 cel mai bine \u00een turnarea semi-solid\u0103 sub presiune. Acestea se topesc mai repede \u0219i mai uniform, cre\u00e2nd o textur\u0103 ideal\u0103.<\/p>\n<p>Deoarece exist\u0103 o rezisten\u021b\u0103 ridicat\u0103 \u00een aliajul A356, acesta este motivul pentru care companiile auto \u00eel folosesc de obicei 70%. \u00centre timp, aliajul AZ91D se potrive\u0219te bine cu turnarea carcaselor electronice u\u0219oare.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Rheological_Properties\"><\/span>Propriet\u0103\u021bi reologice<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Graficele descriu modul \u00een care aliajele SSDC func\u021bioneaz\u0103 \u00een diferite etape \u0219i la diferite frac\u021bii solide (Fs). La Fs=0,37. Se observ\u0103 o sc\u0103dere a v\u00e2scozit\u0103\u021bii atunci c\u00e2nd rata de forfecare cre\u0219te de la 1 la 10 s-\u00b9.<\/p>\n<p>Frac\u021bii precum Fs=0,48, care sunt mai mari, men\u021bin \u00eengro\u0219area fluxului. Ele folosesc mai mult\u0103 for\u021b\u0103 pentru a umple matri\u021bele. Acest grafic demonstreaz\u0103 situa\u021bia pentru care produc\u0103torii utilizeaz\u0103 Fs \u00eentre 0,40 \u0219i 0,45 pentru a ob\u021bine cea mai bun\u0103 produc\u021bie.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Solidification_Behavior\"><\/span>Comportamentul de solidificare<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A356 de turnare se r\u0103ce\u0219te \u00een intervalul 50\u00b0C. Acestea v\u0103 ofer\u0103 suficient timp pentru a \u00eentinde metalul \u00een interiorul matri\u021bei.<\/p>\n<p>Pentru a cre\u0219te acest interval, pute\u021bi ad\u0103uga 0,3% magneziu. Asta pentru a o cre\u0219te p\u00e2n\u0103 la 15\u00b0C pentru un flux mai bun.<\/p>\n<p>\u00cen schimb, aliajul AZ91D cap\u0103t\u0103 o form\u0103 complet solid\u0103 mai rapid. Cu toate acestea, el produce piese cu pere\u021bi mai puternici \u0219i mai sub\u021biri. Acestea sunt cu p\u00e2n\u0103 la 2 mm mai groase.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Secondary_Processing\"><\/span>Prelucrarea secundar\u0103<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Piesele au adesea nevoie de mai pu\u021bine etape de prelucrare secundar\u0103. Acest lucru se datoreaz\u0103 faptului c\u0103 este nevoie de o \u00eendep\u0103rtare a suprafe\u021bei de 0,1 mm fa\u021b\u0103 de 0,5 mm pentru piesele turnate conven\u021bionale.<\/p>\n<p>De asemenea, trecerea aliajului A356 prin tratament termic aduce o rezisten\u021b\u0103 \u00eembun\u0103t\u0103\u021bit\u0103 p\u00e2n\u0103 la 20% f\u0103r\u0103 deformare.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Semi-solid_die_Casting_vs_Traditional_Die_Casting\"><\/span>Turnarea semisolid\u0103 vs. Turnarea tradi\u021bional\u0103<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a href=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/Add-a-heading-2025-04-01T020712.282.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-18288 size-full\" src=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/Add-a-heading-2025-04-01T020712.282.png\" alt=\"Procesul de turnare semisolid\u0103 sub presiune\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/Add-a-heading-2025-04-01T020712.282.png 800w, https:\/\/aludiecasting.com\/wp-content\/uploads\/2025\/03\/Add-a-heading-2025-04-01T020712.282-480x300.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=\"Process_Parameter_Comparison\"><\/span>Compararea parametrilor de proces<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<table width=\"602\">\n<tbody>\n<tr>\n<td width=\"201\">Parametru<\/td>\n<td width=\"201\">Turnare semi-solid\u0103<\/td>\n<td width=\"201\">Turnare tradi\u021bional\u0103<\/td>\n<\/tr>\n<tr>\n<td width=\"201\">Temperatura<\/td>\n<td width=\"201\">580-620\u00b0C<\/td>\n<td width=\"201\">680-720\u00b0C<\/td>\n<\/tr>\n<tr>\n<td width=\"201\">Presiunea de injec\u021bie<\/td>\n<td width=\"201\">50-100 MPa<\/td>\n<td width=\"201\">70-150 MPa<\/td>\n<\/tr>\n<tr>\n<td width=\"201\">Frac\u021bia solid\u0103<\/td>\n<td width=\"201\">30-50%<\/td>\n<td width=\"201\">0% (complet lichid)<\/td>\n<\/tr>\n<tr>\n<td width=\"201\">Durata ciclului<\/td>\n<td width=\"201\">45-60 secunde<\/td>\n<td width=\"201\">30-40 secunde<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"Material_Structure\"><\/span>Structura materialului<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Structura globular\u0103 \u00een turnarea semisolid\u0103 ofer\u0103 o tenacitate cu 20% mai mare dec\u00e2t structura vechii turn\u0103ri. Aceasta con\u021bine aproximativ 2 % porozitate; invers, 5,8%.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Cost_Factors\"><\/span>Factori de cost<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Cu toate acestea, costul ini\u021bial este mai ridicat p\u00e2n\u0103 la 20%. Cu toate acestea, poate fi rentabil\u0103, deoarece reduce de\u0219eurile de material cu aproximativ 15% \u0219i costurile de prelucrare cu p\u00e2n\u0103 la 40%. Aceasta compenseaz\u0103 cheltuielile ini\u021biale.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"When_to_Choose\"><\/span>C\u00e2nd s\u0103 alege\u021bi<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Opta\u021bi pentru semisolid atunci c\u00e2nd este necesar:<\/p>\n<p>Alege\u021bi un proces de turnare sub presiune semi-solid atunci c\u00e2nd produce\u021bi:<\/p>\n<ul>\n<li>Pere\u021bi sub\u021biri (&lt;3mm)<\/li>\n<li>Rezisten\u021b\u0103 ridicat\u0103 (&gt;250 MPa)<\/li>\n<li>Volume &gt;20.000 unit\u0103\u021bi\/an<\/li>\n<li>Finisaje netede (&lt;3.2\u03bcm Ra)<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Concluzie:<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Turnarea semisolid\u0103 este realizat\u0103 cu o calitate superioar\u0103 a durit\u0103\u021bii. De asemenea, adaug\u0103 o finisare excelent\u0103 a suprafe\u021bei cu porozitate minim\u0103, cu aproximativ 30% mai pu\u021bin dec\u00e2t procesul obi\u0219nuit.<\/p>\n<p>De\u0219i tehnica utilizeaz\u0103 aliaje specifice \u0219i set\u0103ri ini\u021biale costisitoare, aceasta devine rentabil\u0103 pentru fabricarea pieselor care dep\u0103\u0219esc 20000 de unit\u0103\u021bi.<\/p>\n<p>Pia\u021ba viitoare a\u0219teapt\u0103 cu ner\u0103bdare extinderea aplica\u021biilor SSDC \u00een domeniul auto, aerospa\u021bial \u0219i al tehnologiilor emergente. De asemenea, se concentreaz\u0103 pe descoperirea progreselor \u00een controlul proceselor \u0219i al sculelor.<\/p>","protected":false},"excerpt":{"rendered":"<p>Descoperi\u021bi puterea turn\u0103rii semisolide sub presiune (SSDC) pentru crearea de componente metalice complexe, rezistente, cu defecte minime \u0219i economii de energie. Afla\u021bi despre reocasting, thixocasting \u0219i utiliz\u0103rile acestora.<\/p>","protected":false},"author":2,"featured_media":18290,"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":[81],"tags":[],"class_list":["post-18283","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-die-casting-alloys"],"_links":{"self":[{"href":"https:\/\/aludiecasting.com\/ro\/wp-json\/wp\/v2\/posts\/18283","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=18283"}],"version-history":[{"count":0,"href":"https:\/\/aludiecasting.com\/ro\/wp-json\/wp\/v2\/posts\/18283\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aludiecasting.com\/ro\/wp-json\/wp\/v2\/media\/18290"}],"wp:attachment":[{"href":"https:\/\/aludiecasting.com\/ro\/wp-json\/wp\/v2\/media?parent=18283"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aludiecasting.com\/ro\/wp-json\/wp\/v2\/categories?post=18283"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aludiecasting.com\/ro\/wp-json\/wp\/v2\/tags?post=18283"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}