{"id":7042,"date":"2026-10-16T15:12:42","date_gmt":"2026-10-16T12:12:42","guid":{"rendered":"https:\/\/www.erapres.com.tr\/?p=7042"},"modified":"2026-10-16T15:12:42","modified_gmt":"2026-10-16T12:12:42","slug":"aluminyum-dokumde-porozite-nedenleri-onleme-yontemleri","status":"publish","type":"post","link":"https:\/\/www.erapres.com.tr\/en\/blog\/aluminyum-dokumde-porozite-nedenleri-onleme-yontemleri\/","title":{"rendered":"Al\u00fcminyum Bas\u0131n\u00e7l\u0131 D\u00f6k\u00fcmde Porozite: Nedenleri, T\u00fcrleri ve \u00d6nleme Y\u00f6ntemleri"},"content":{"rendered":"<div id=\"pl-7042\"  class=\"panel-layout\" ><div id=\"pg-7042-0\"  class=\"panel-grid panel-has-style\" ><div style=\"padding: 100px 0; \" data-overlay=\"true\" data-overlay-color=\"#000000\" class=\"panel-row-style panel-row-style-for-7042-0\" ><div id=\"pgc-7042-0-0\"  class=\"panel-grid-cell panel-grid-cell-empty\" ><\/div><div id=\"pgc-7042-0-1\"  class=\"panel-grid-cell panel-grid-cell-mobile-last\" ><div id=\"panel-7042-0-1-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"0\" ><div style=\"text-align: left;\" data-title-color=\"#443f3f\" data-headings-color=\"#443f3f\" class=\"panel-widget-style panel-widget-style-for-7042-0-1-0\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t><h3 class=\"widget-title\">Al\u00fcminyum Bas\u0131n\u00e7l\u0131 D\u00f6k\u00fcmde Porozite: Nedenleri, T\u00fcrleri ve \u00d6nleme Y\u00f6ntemleri<\/h3>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<p>Par\u00e7a tezg\u00e2hta i\u015flenirken y\u00fczeyde beliren k\u00fc\u00e7\u00fck bir bo\u015fluk, bazen b\u00fct\u00fcn bir partinin hurdaya gitmesi demektir. <strong>Al\u00fcminyum d\u00f6k\u00fcmde porozite<\/strong>, bas\u0131n\u00e7l\u0131 d\u00f6k\u00fcm tesislerinin en pahal\u0131 kalite sorunlar\u0131ndan biridir. \u00c7\u00fcnk\u00fc hata \u00e7o\u011fu zaman par\u00e7an\u0131n i\u00e7inde sakl\u0131d\u0131r ve ancak r\u00f6ntgende, s\u0131zd\u0131rmazl\u0131k testinde ya da tala\u015fl\u0131 imalat s\u0131ras\u0131nda ortaya \u00e7\u0131kar.<\/p>\n<p>Bu yaz\u0131da porozitenin ne oldu\u011funu, gaz ve \u00e7ekinti kaynakl\u0131 bo\u015fluklar\u0131n nas\u0131l ay\u0131rt edildi\u011fini, hangi proses ve ekipman fakt\u00f6rlerinin bu hatay\u0131 tetikledi\u011fini ele al\u0131yoruz. Amac\u0131m\u0131z teorik bir tan\u0131m vermek de\u011fil. Vardiya m\u00fchendisinin, kalite sorumlusunun ve yat\u0131r\u0131m karar\u0131 veren y\u00f6neticinin \u00fcretim hatt\u0131nda do\u011frudan kullanabilece\u011fi bir \u00e7er\u00e7eve sunmak.<\/p>\n<h2>Al\u00fcminyum D\u00f6k\u00fcmde Porozite Nedir?<\/h2>\n<p>Porozite, kat\u0131la\u015fm\u0131\u015f d\u00f6k\u00fcm par\u00e7an\u0131n i\u00e7inde ya da y\u00fczeye yak\u0131n b\u00f6lgelerinde olu\u015fan k\u00fc\u00e7\u00fck bo\u015fluklard\u0131r. Bu bo\u015fluklar mikroskobik olabilece\u011fi gibi milimetre mertebesine de ula\u015fabilir. Bazen tek tek, bazen k\u00fcmeler halinde g\u00f6r\u00fcl\u00fcrler.<\/p>\n<p>Her porozite par\u00e7ay\u0131 hurdaya \u00e7\u0131karmaz. Dekoratif bir kapak ile bas\u0131n\u00e7 alt\u0131nda \u00e7al\u0131\u015fan bir hidrolik blok ayn\u0131 kabul s\u0131n\u0131r\u0131na sahip de\u011fildir. Belirleyici olan, bo\u015flu\u011fun nerede bulundu\u011fu, ne kadar b\u00fcy\u00fck oldu\u011fu ve par\u00e7an\u0131n hangi i\u015flevi g\u00f6rd\u00fc\u011f\u00fcd\u00fcr.<\/p>\n<h3>Porozite hangi par\u00e7alarda sorun yarat\u0131r?<\/h3>\n<ul>\n<li><strong>S\u0131zd\u0131rmazl\u0131k gerektiren par\u00e7alar:<\/strong> Pompa g\u00f6vdeleri, valf bloklar\u0131 ve so\u011futma kanallar\u0131, bo\u015fluklar\u0131n birle\u015fmesiyle s\u0131z\u0131nt\u0131 yapabilir.<\/li>\n<li><strong>Tala\u015fl\u0131 imalat uygulanan par\u00e7alar:<\/strong> \u0130\u015fleme s\u0131ras\u0131nda y\u00fczeyin hemen alt\u0131ndaki bo\u015fluk a\u00e7\u0131l\u0131r ve par\u00e7a kabul d\u0131\u015f\u0131 kal\u0131r.<\/li>\n<li><strong>Yap\u0131sal par\u00e7alar:<\/strong> Bo\u015fluklar ta\u015f\u0131yan kesiti k\u00fc\u00e7\u00fclt\u00fcr ve yorulma \u00f6mr\u00fcn\u00fc k\u0131salt\u0131r.<\/li>\n<li><strong>Is\u0131l i\u015flem g\u00f6ren veya kaplanan par\u00e7alar:<\/strong> \u0130\u00e7eride kalan gaz \u0131s\u0131yla genle\u015ferek y\u00fczeyde kabarc\u0131klara yol a\u00e7abilir. Anodize ve boya kalitesi de bundan etkilenir.<\/li>\n<\/ul>\n<h2>Gaz Porozitesi ile \u00c7ekinti Porozitesi: Fark\u0131 Nas\u0131l Anlars\u0131n\u0131z?<\/h2>\n<p>\u00c7\u00f6z\u00fcm aramadan \u00f6nce hatan\u0131n t\u00fcr\u00fcn\u00fc do\u011fru koymak gerekir. \u0130ki t\u00fcr\u00fcn k\u00f6k nedeni de \u00e7aresi de farkl\u0131d\u0131r. Gaz bo\u015flu\u011funu \u00e7ekinti \u00e7\u00f6z\u00fcmleriyle gidermeye \u00e7al\u0131\u015f\u0131rsan\u0131z haftalarca ayar yapar, ama sonu\u00e7 alamazs\u0131n\u0131z.<\/p>\n<table>\n<thead>\n<tr>\n<th>\u00d6zellik<\/th>\n<th>Gaz porozitesi<\/th>\n<th>\u00c7ekinti porozitesi<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>G\u00f6r\u00fcn\u00fcm<\/td>\n<td>Yuvarlak, i\u00e7 y\u00fczeyi p\u00fcr\u00fczs\u00fcz ve parlak<\/td>\n<td>D\u00fczensiz, k\u00f6\u015feli, \u00e7o\u011fu zaman dallanm\u0131\u015f ve mat<\/td>\n<\/tr>\n<tr>\n<td>S\u0131k g\u00f6r\u00fcld\u00fc\u011f\u00fc yer<\/td>\n<td>Son dolan b\u00f6lgeler, havaland\u0131rma kanallar\u0131n\u0131n yak\u0131n\u0131, t\u00fcrb\u00fclans olu\u015fan noktalar<\/td>\n<td>Kal\u0131n kesitler ve s\u0131cak noktalar<\/td>\n<\/tr>\n<tr>\n<td>Ana neden<\/td>\n<td>Hapsolan hava, kal\u0131p spreyi gazlar\u0131, eriyikteki hidrojen<\/td>\n<td>Kat\u0131la\u015f\u0131rken olu\u015fan hacim kayb\u0131n\u0131n beslenememesi<\/td>\n<\/tr>\n<tr>\n<td>\u0130lk bak\u0131lacak yer<\/td>\n<td>Enjeksiyon profili, kal\u0131p havaland\u0131rmas\u0131, eriyik kalitesi<\/td>\n<td>Peki\u015ftirme bas\u0131nc\u0131, kal\u0131p s\u0131cakl\u0131k dengesi, yolluk tasar\u0131m\u0131<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Pratik bir ipucu olarak, kesti\u011finiz par\u00e7ada bo\u015flu\u011fun i\u00e7 y\u00fczeyi yuvarlak ve parlaksa gaz, d\u00fczensiz ve matsa \u00e7ekinti olas\u0131l\u0131\u011f\u0131 y\u00fcksektir. Ayn\u0131 par\u00e7ada iki t\u00fcr\u00fcn birlikte bulunmas\u0131 da s\u0131k g\u00f6r\u00fcl\u00fcr. Kesin te\u015fhis i\u00e7in r\u00f6ntgen ve kesit incelemesi gerekir. Yine de bu g\u00f6zlem, bak\u0131m ve proses ekibine ilk y\u00f6n\u00fc verir.<\/p>\n<h2>Gaz Porozitesinin Ba\u015fl\u0131ca Nedenleri<\/h2>\n<h3>\u015earj odas\u0131nda hapsolan hava<\/h3>\n<p>So\u011fuk kamaral\u0131 makinede s\u0131v\u0131 al\u00fcminyum \u015farj odas\u0131na d\u00f6k\u00fcl\u00fcr, piston ilerleyerek metali kal\u0131ba iter. Odada metalle birlikte hava da bulunur. Birinci faz, yani yava\u015f faz h\u0131z\u0131 yanl\u0131\u015f ayarlan\u0131rsa metalin y\u00fczeyinde dalga olu\u015fur. Dalga k\u0131r\u0131ld\u0131\u011f\u0131nda hava metale kar\u0131\u015f\u0131r ve kal\u0131ba birlikte ta\u015f\u0131n\u0131r.<\/p>\n<p>H\u0131z \u00e7ok d\u00fc\u015f\u00fck se\u00e7ilirse bu kez metal odada so\u011fur ve erken kat\u0131la\u015fm\u0131\u015f tabakalar par\u00e7aya ula\u015f\u0131r. Dolay\u0131s\u0131yla yava\u015f faz, dalgan\u0131n k\u0131r\u0131lmadan ilerleyece\u011fi bir dengede ayarlanmal\u0131d\u0131r. Odan\u0131n doluluk oran\u0131 da ayn\u0131 derecede \u00f6nemlidir. Doluluk d\u00fc\u015f\u00fck oldu\u011funda odadaki hava hacmi artar. Bir\u00e7ok uygulamada odan\u0131n yakla\u015f\u0131k y\u00fczde 40 ile 60\u2019\u0131 dolu tutulur. Yine de ideal de\u011fer makineye, par\u00e7aya ve kal\u0131ba g\u00f6re denemelerle bulunur.<\/p>\n<p>\u015earj miktar\u0131n\u0131n her at\u0131\u015fta ayn\u0131 olmas\u0131 burada kritik hale gelir. <a href='https:\/\/www.erapres.com.tr\/en\/auxiliary-equipment\/'>Dozajl\u0131 ocak ve yard\u0131mc\u0131 ekipmanlar<\/a>, her at\u0131\u015fta ayn\u0131 miktarda metal sa\u011flayarak doluluk oran\u0131n\u0131 sabit tutman\u0131za yard\u0131mc\u0131 olur.<\/p>\n<h3>Yetersiz kal\u0131p havaland\u0131rmas\u0131<\/h3>\n<p>Kal\u0131p bo\u015flu\u011fundaki hava, metal ilerlerken d\u0131\u015far\u0131 \u00e7\u0131kabilmelidir. Havaland\u0131rma kanallar\u0131 ve ta\u015fma cepleri t\u0131kanm\u0131\u015fsa ya da yetersizse hava metalin i\u00e7inde hapsolur. Sprey kal\u0131nt\u0131lar\u0131 ve ince al\u00fcminyum tabakalar bu kanallar\u0131 zamanla daralt\u0131r. Bu nedenle kanallar\u0131n periyodik temizli\u011fi bak\u0131m plan\u0131na yaz\u0131lmal\u0131d\u0131r.<\/p>\n<p>Vakum destekli sistemler bu ihtiya\u00e7 i\u00e7in geli\u015ftirilmi\u015ftir. Kal\u0131p bo\u015flu\u011fundaki havay\u0131 \u00f6nceden bo\u015faltarak i\u00e7eride hapsolacak hava miktar\u0131n\u0131 azalt\u0131rlar. Ancak vakum, s\u0131zd\u0131ran bir kal\u0131pta ya da bak\u0131ms\u0131z bir vakum valfinde beklenen fayday\u0131 vermez. Yat\u0131r\u0131m yapmadan \u00f6nce kal\u0131p s\u0131zd\u0131rmazl\u0131\u011f\u0131 kontrol edilmelidir.<\/p>\n<h3>Eriyik i\u00e7indeki hidrojen<\/h3>\n<p>Hidrojenin al\u00fcminyumdaki \u00e7\u00f6z\u00fcn\u00fcrl\u00fc\u011f\u00fc s\u0131v\u0131 halde, kat\u0131 hale g\u00f6re yakla\u015f\u0131k yirmi kat fazlad\u0131r. Eriyik i\u00e7inde \u00e7\u00f6z\u00fcnm\u00fc\u015f duran hidrojen kat\u0131la\u015fma s\u0131ras\u0131nda d\u0131\u015far\u0131 itilir ve k\u00fc\u00e7\u00fck, yuvarlak bo\u015fluklar olu\u015fturur. Bu hidrojenin ana kayna\u011f\u0131 nemdir.<\/p>\n<ul>\n<li>Ya\u011fl\u0131, nemli veya kirli geri d\u00f6n\u00fc\u015f\u00fcm malzemesi<\/li>\n<li>\u00d6nceden \u0131s\u0131t\u0131lmam\u0131\u015f pota, kep\u00e7e ve tak\u0131mlar<\/li>\n<li>F\u0131r\u0131n refrakterlerinde biriken nem<\/li>\n<li>Y\u00fcksek hava nemi ve metalin gereksiz t\u00fcrb\u00fclansla ta\u015f\u0131nmas\u0131<\/li>\n<\/ul>\n<p>\u00d6nlem olarak \u015farj malzemesini kuru tutmal\u0131, tak\u0131mlar\u0131 kullanmadan \u00f6nce \u0131s\u0131tmal\u0131 ve gerekiyorsa eriyi\u011fi rotor tipi degaz\u00f6rle argon ya da azot kullanarak temizlemelisiniz. Eriyik kalitesini yo\u011funluk indeksi gibi basit bir testle d\u00fczenli izlemek de m\u00fcmk\u00fcnd\u00fcr. F\u0131r\u0131n se\u00e7imi ve ergitme prati\u011fi hakk\u0131nda <a href='https:\/\/www.erapres.com.tr\/en\/blog\/what-is-a-smelting-company-and-how-does-it-work\/'>ergitme f\u0131r\u0131n\u0131n\u0131n \u00e7al\u0131\u015fma prensibi<\/a> yaz\u0131m\u0131za g\u00f6z atabilirsiniz.<\/p>\n<h3>Kal\u0131p spreyi ve ya\u011flama kaynakl\u0131 gazlar<\/h3>\n<p>Gere\u011finden fazla uygulanan kal\u0131p spreyi, kal\u0131p y\u00fczeyinde su ya da ya\u011f filmi b\u0131rak\u0131r. S\u0131v\u0131 metal kal\u0131ba girdi\u011finde bu film buharla\u015f\u0131r ve gaz olu\u015fturur. Piston ya\u011flay\u0131c\u0131s\u0131n\u0131n fazlas\u0131 da \u015farj odas\u0131nda yanarak ayn\u0131 etkiyi yarat\u0131r.<\/p>\n<p>Sprey miktar\u0131n\u0131, p\u00fcsk\u00fcrtme s\u00fcresini ve hava \u00fcfleme s\u00fcresini standart hale getirmek gerekir. Operat\u00f6re ba\u011fl\u0131 de\u011fi\u015fkenli\u011fi azaltman\u0131n en g\u00fcvenilir yolu, <a href='https:\/\/www.erapres.com.tr\/en\/blog\/otomatik-kalip-spreyleme-robotu-emy-08-plus-nedir\/'>otomatik kal\u0131p spreyleme robotu<\/a> kullanmakt\u0131r. Her \u00e7evrimde ayn\u0131 desen ve ayn\u0131 miktar uyguland\u0131\u011f\u0131nda gaz kaynakl\u0131 de\u011fi\u015fkenlik belirgin bi\u00e7imde d\u00fc\u015fer.<\/p>\n<h2>\u00c7ekinti Porozitesinin Ba\u015fl\u0131ca Nedenleri<\/h2>\n<p>Al\u00fcminyum kat\u0131la\u015f\u0131rken yakla\u015f\u0131k y\u00fczde 6 ile 7 oran\u0131nda hacim kaybeder. Bu kayb\u0131n, h\u00e2l\u00e2 s\u0131v\u0131 olan metalle doldurulmas\u0131 gerekir. Besleme yolu kapan\u0131rsa bo\u015fluk par\u00e7an\u0131n i\u00e7inde kal\u0131r.<\/p>\n<h3>Peki\u015ftirme faz\u0131 yeterli de\u011fil<\/h3>\n<p>\u00dc\u00e7\u00fcnc\u00fc faz, yani peki\u015ftirme (intensifikasyon) faz\u0131, kat\u0131la\u015fma s\u0131ras\u0131nda par\u00e7ay\u0131 besleyen bas\u0131nc\u0131 uygular. Bas\u0131n\u00e7 ge\u00e7 devreye girerse, yeterince y\u00fckselmezse ya da yolluk bas\u0131n\u00e7 iletilmeden donarsa \u00e7ekinti ka\u00e7\u0131n\u0131lmazd\u0131r. \u015earj odas\u0131nda kalan metal tabakas\u0131n\u0131n, yani bisk\u00fcvinin \u00e7ok ince kalmas\u0131 da pistonun beslemeyi s\u00fcrd\u00fcrmesini engeller.<\/p>\n<p>Bu fazlar\u0131n ayr\u0131 ayr\u0131 y\u00f6netilebilmesi \u00f6nemlidir. Era serisi so\u011fuk kamaral\u0131 enjeksiyon makinalar\u0131m\u0131zda birinci, ikinci ve \u00fc\u00e7\u00fcnc\u00fc faz ba\u011f\u0131ms\u0131z olarak ayarlanabilir. Real Time enjeksiyon sistemi ise d\u00f6rd\u00fcnc\u00fc faz \u00f6zelli\u011fi sunar. Bu sayede bas\u0131n\u00e7 y\u00fckseli\u015fi par\u00e7an\u0131n kat\u0131la\u015fma davran\u0131\u015f\u0131na g\u00f6re ince ayarlanabilir.<\/p>\n<h3>Kal\u0131n kesitler ve kal\u0131p s\u0131cakl\u0131k dengesi<\/h3>\n<p>Par\u00e7an\u0131n kal\u0131n b\u00f6lgeleri en son kat\u0131la\u015f\u0131r. Bu b\u00f6lgelere giden yol \u00f6nce kapan\u0131rsa i\u00e7eride \u00e7ekinti olu\u015fur. Kal\u0131b\u0131n bu noktalarda a\u015f\u0131r\u0131 s\u0131cak kalmas\u0131 durumu daha da k\u00f6t\u00fcle\u015ftirir.<\/p>\n<p>\u00c7\u00f6z\u00fcm hem tasar\u0131mda hem kal\u0131p taraf\u0131ndad\u0131r. Et kal\u0131nl\u0131\u011f\u0131 ge\u00e7i\u015fleri m\u00fcmk\u00fcn oldu\u011funca yumu\u015fak tutulmal\u0131, s\u0131cak noktalara noktasal so\u011futma uygulanmal\u0131d\u0131r. Kal\u0131p s\u0131cakl\u0131\u011f\u0131n\u0131 sabit tutmak i\u00e7in <a href='https:\/\/www.erapres.com.tr\/en\/blog\/what-is-a-thermoregulator-and-what-is-it-used-for\/'>thermoregulator<\/a> kullan\u0131lmas\u0131 da yararl\u0131d\u0131r. Kal\u0131p fazla so\u011fuk olursa so\u011fuk birle\u015fme, fazla s\u0131cak olursa hem \u00e7ekinti hem de yap\u0131\u015fma riski artar. Ama\u00e7, iki u\u00e7 aras\u0131nda kararl\u0131 bir pencere bulmakt\u0131r.<\/p>\n<h3>Yolluk ve besleme sistemi tasar\u0131m\u0131<\/h3>\n<p>Yollu\u011fun kesiti, konumu ve y\u00f6n\u00fc; metalin kal\u0131ba girme h\u0131z\u0131n\u0131 ve kal\u0131n b\u00f6lgelerin beslenip beslenemeyece\u011fini belirler. Kal\u0131p imalat\u0131na ge\u00e7meden \u00f6nce ak\u0131\u015f ve kat\u0131la\u015fma sim\u00fclasyonu yapmak, \u00e7ekinti riskli b\u00f6lgeleri \u00fcretimden \u00f6nce g\u00f6rmenizi sa\u011flar. Sonradan kal\u0131p de\u011fi\u015fikli\u011fi yapmak her zaman daha pahal\u0131ya gelir.<\/p>\n<h2>Porozite Nas\u0131l Tespit Edilir?<\/h2>\n<p>Porozite \u00e7o\u011fu zaman g\u00f6zle g\u00f6r\u00fclmez. Bu nedenle kontrol y\u00f6ntemini par\u00e7an\u0131n kritikli\u011fine g\u00f6re se\u00e7meniz gerekir.<\/p>\n<ul>\n<li><strong>Kesit incelemesi:<\/strong> Numune par\u00e7a kesilerek i\u00e7 yap\u0131 do\u011frudan incelenir. H\u0131zl\u0131d\u0131r ancak par\u00e7ay\u0131 yok eder.<\/li>\n<li><strong>Yo\u011funluk \u00f6l\u00e7\u00fcm\u00fc:<\/strong> Par\u00e7a yo\u011funlu\u011fu teorik de\u011ferle kar\u015f\u0131la\u015ft\u0131r\u0131larak toplam bo\u015fluk d\u00fczeyi hakk\u0131nda fikir verir. Eriyik i\u00e7in ise indirgenmi\u015f bas\u0131n\u00e7 testi kullan\u0131l\u0131r.<\/li>\n<li><strong>S\u0131zd\u0131rmazl\u0131k testi:<\/strong> Hava ya da helyum ile yap\u0131l\u0131r. Bas\u0131n\u00e7 alt\u0131nda \u00e7al\u0131\u015fan par\u00e7alar i\u00e7in vazge\u00e7ilmezdir.<\/li>\n<li><strong>R\u00f6ntgen incelemesi:<\/strong> \u0130\u00e7 bo\u015fluklar\u0131 tahribats\u0131z g\u00f6sterir. Al\u00fcminyum bas\u0131n\u00e7l\u0131 d\u00f6k\u00fcm par\u00e7alarda referans radyografi standartlar\u0131, \u00f6rne\u011fin ASTM E505, ve m\u00fc\u015fteri spesifikasyonlar\u0131 kabul s\u0131n\u0131f\u0131n\u0131 belirlemede kullan\u0131l\u0131r.<\/li>\n<li><strong>Bilgisayarl\u0131 tomografi:<\/strong> Bo\u015flu\u011fun \u00fc\u00e7 boyutlu konumunu ve hacmini verir. Daha maliyetlidir, genellikle ilk numune onay\u0131 ve k\u00f6k neden analizinde tercih edilir.<\/li>\n<\/ul>\n<p>Kabul kriterini \u00fcretime ba\u015flamadan m\u00fc\u015fteriyle netle\u015ftirmelisiniz. Bo\u015flu\u011fun izin verilen en b\u00fcy\u00fck boyutu, adedi ve par\u00e7an\u0131n hangi b\u00f6lgesinde kabul edilece\u011fi yaz\u0131l\u0131 olmal\u0131d\u0131r. Kritik b\u00f6lgeler ile g\u00f6rsel \u00f6nemi olmayan b\u00f6lgeler i\u00e7in farkl\u0131 s\u0131n\u0131rlar belirlemek, gereksiz hurda oran\u0131n\u0131 d\u00fc\u015f\u00fcr\u00fcr.<\/p>\n<h2>Makine ve Proses Kontrol\u00fc Poroziteyi Nas\u0131l Azalt\u0131r?<\/h2>\n<p>Porozite \u00e7o\u011fu zaman tek bir ayar hatas\u0131ndan de\u011fil, tekrarlanamayan proses ko\u015fullar\u0131ndan do\u011far. Ayn\u0131 kal\u0131pta bir vardiyada sorunsuz \u00e7al\u0131\u015fan hat, ertesi g\u00fcn farkl\u0131 sonu\u00e7 veriyorsa fark genellikle enjeksiyon profilindedir.<\/p>\n<p>Burada her at\u0131\u015f\u0131n kayd\u0131 b\u00fcy\u00fck \u00f6nem ta\u015f\u0131r. H\u0131z ve bas\u0131n\u00e7 e\u011frilerini her vuru\u015f i\u00e7in saklayabildi\u011finizde, r\u00f6ntgende hatal\u0131 \u00e7\u0131kan par\u00e7ay\u0131 o at\u0131\u015f\u0131n <a href='https:\/\/www.erapres.com.tr\/en\/blog\/what-are-injection-curves\/'>enjeksiyon e\u011frisiyle<\/a> e\u015fle\u015ftirebilirsiniz. B\u00f6ylece k\u00f6k neden aray\u0131\u015f\u0131 tahmine de\u011fil veriye dayan\u0131r.<\/p>\n<p>Era220-Era2200 serisi so\u011fuk kamaral\u0131 enjeksiyon makinalar\u0131m\u0131zda proses parametreleri geriye d\u00f6n\u00fck s\u0131n\u0131rs\u0131z kaydedilir. Her vuru\u015f kal\u0131p ad\u0131 alt\u0131nda incelenebilir. H\u0131z ve bas\u0131n\u00e7 de\u011ferlerine alt ve \u00fcst s\u0131n\u0131r verip bu s\u0131n\u0131rlar\u0131n d\u0131\u015f\u0131na \u00e7\u0131k\u0131ld\u0131\u011f\u0131nda alarm \u00fcretilebilir ya da \u00fcretim durdurulabilir. Makinelerimizde enjeksiyon h\u0131z\u0131 8-10 m\/s, bas\u0131n\u00e7 ise 480 bar seviyesine kadar ula\u015fabilir. Ayr\u0131nt\u0131lar i\u00e7in <a href='https:\/\/www.erapres.com.tr\/en\/cold-chamber-injection-machines\/'>so\u011fuk kamaral\u0131 enjeksiyon makinalar\u0131m\u0131z<\/a> sayfas\u0131n\u0131 inceleyebilirsiniz.<\/p>\n<p>Kapal\u0131 \u00e7evrim kontrol de \u00f6nemli bir ad\u0131md\u0131r. <a href='https:\/\/www.erapres.com.tr\/en\/real-time-and-shoot-control\/'>Real Time shoot kontrol<\/a> sistemi, at\u0131\u015f s\u0131ras\u0131nda h\u0131z ve bas\u0131nc\u0131 izler ve hedeften sapmalar\u0131 an\u0131nda d\u00fczeltmeye \u00e7al\u0131\u015f\u0131r. Bu konuyu <a href='https:\/\/www.erapres.com.tr\/en\/blog\/gercek-zamanli-atis-kontrolu\/'>ger\u00e7ek zamanl\u0131 at\u0131\u015f kontrol\u00fc<\/a> yaz\u0131m\u0131zda daha ayr\u0131nt\u0131l\u0131 anlatt\u0131k.<\/p>\n<blockquote>\n<p>Porozite ile m\u00fccadelede ilk hedef, hatay\u0131 s\u0131f\u0131rlamak de\u011fil de\u011fi\u015fkenli\u011fi azaltmakt\u0131r. Proses her at\u0131\u015fta ayn\u0131 davran\u0131rsa ayar yapmak da, hatan\u0131n kayna\u011f\u0131n\u0131 bulmak da kolayla\u015f\u0131r.<\/p>\n<\/blockquote>\n<h2>Al\u00e7ak Bas\u0131n\u00e7 D\u00f6k\u00fcm ve Emprenye: Alternatif ve Tamamlay\u0131c\u0131 \u00c7\u00f6z\u00fcmler<\/h2>\n<p>Baz\u0131 par\u00e7alar i\u00e7in sorunun cevab\u0131 enjeksiyon ayar\u0131nda de\u011fil, y\u00f6ntem se\u00e7imindedir. Al\u00e7ak bas\u0131n\u00e7 d\u00f6k\u00fcmde metal kal\u0131ba a\u015fa\u011f\u0131dan yukar\u0131ya do\u011fru, d\u00fc\u015f\u00fck h\u0131zla ve kontroll\u00fc bas\u0131n\u00e7la dolar. Dolum sakin ilerledi\u011fi i\u00e7in t\u00fcrb\u00fclans ve hava hapsi azal\u0131r. Y\u00f6nl\u00fc kat\u0131la\u015fma da \u00e7ekinti riskini d\u00fc\u015f\u00fcr\u00fcr. Bu nedenle yap\u0131sal, \u0131s\u0131l i\u015fleme uygun ve y\u00fcksek i\u00e7 kalite beklenen par\u00e7alarda tercih edilir. <a href='https:\/\/www.erapres.com.tr\/en\/low-pressure-presses\/'>Al\u00e7ak bas\u0131n\u00e7 preslerimiz<\/a> bu t\u00fcr uygulamalar i\u00e7in geli\u015ftirilmi\u015ftir. Y\u00f6ntemin ince kesitlerdeki avantajlar\u0131n\u0131 <a href='https:\/\/www.erapres.com.tr\/en\/blog\/alcak-basinc-dokum-ile-ince-kesitlerde-kalite-nasil-artar\/'>bu yaz\u0131da<\/a> bulabilirsiniz.<\/p>\n<p>Elbette her par\u00e7a al\u00e7ak bas\u0131nca uygun de\u011fildir. \u00c7evrim s\u00fcresi daha uzundur ve \u00e7ok ince, karma\u015f\u0131k, y\u00fcksek adetli par\u00e7alarda bas\u0131n\u00e7l\u0131 d\u00f6k\u00fcm \u00e7o\u011fu zaman ekonomik olarak daha mant\u0131kl\u0131d\u0131r. Y\u00f6ntem se\u00e7imi par\u00e7a geometrisi, adet ve kalite beklentisiyle birlikte de\u011ferlendirilmelidir.<\/p>\n<p>Mikro g\u00f6zenekler y\u00fcz\u00fcnden s\u0131zd\u0131rmazl\u0131k sorunu ya\u015fayan par\u00e7alarda ise <a href='https:\/\/www.erapres.com.tr\/en\/blog\/vakum-emprenye-sistemi-tesisi\/'>vakum emprenye sistemi<\/a> devreye girer. Emprenye, birbirine ba\u011fl\u0131 mikro bo\u015fluklar\u0131 re\u00e7ine ile doldurarak s\u0131z\u0131nt\u0131 yollar\u0131n\u0131 kapat\u0131r. Bu i\u015flem par\u00e7an\u0131n i\u00e7indeki b\u00fcy\u00fck bo\u015fluklar\u0131 yok etmez. Dolay\u0131s\u0131yla emprenyeyi k\u00f6k nedeni \u00e7\u00f6zmenin yerine de\u011fil, s\u0131zd\u0131rmazl\u0131k g\u00fcvencesini tamamlayan bir ad\u0131m olarak g\u00f6rmelisiniz.<\/p>\n<h2>Porozite \u00d6nleme Kontrol Listesi<\/h2>\n<p>A\u015fa\u011f\u0131daki liste, vardiya baz\u0131nda uygulayabilece\u011finiz temel kontrolleri toplar. Bunlar\u0131 \u00fcretim talimat\u0131n\u0131za ve bak\u0131m plan\u0131n\u0131za ekleyebilirsiniz.<\/p>\n<ol>\n<li>Hatan\u0131n t\u00fcr\u00fcn\u00fc belirleyin: gaz m\u0131, \u00e7ekinti mi, yoksa ikisi birlikte mi?<\/li>\n<li>\u015earj malzemesini kuru ve temiz tutun, pota ile tak\u0131mlar\u0131 \u0131s\u0131tarak kullan\u0131n.<\/li>\n<li>Eriyik kalitesini yo\u011funluk indeksiyle d\u00fczenli izleyin, gerekirse degaz\u00f6r uygulay\u0131n.<\/li>\n<li>Her at\u0131\u015fta ayn\u0131 miktarda metal verin, \u015farj odas\u0131 doluluk oran\u0131n\u0131 sabitleyin.<\/li>\n<li>Yava\u015f faz h\u0131z\u0131n\u0131 dalga k\u0131r\u0131lmayacak \u015fekilde ayarlay\u0131n.<\/li>\n<li>Havaland\u0131rma kanallar\u0131n\u0131 ve ta\u015fma ceplerini periyodik olarak temizleyin.<\/li>\n<li>Sprey ve piston ya\u011f\u0131 miktar\u0131n\u0131 standart hale getirin.<\/li>\n<li>Peki\u015ftirme bas\u0131nc\u0131n\u0131 do\u011fru zamanda ve yeterli seviyede uygulay\u0131n.<\/li>\n<li>Kal\u0131p s\u0131cakl\u0131\u011f\u0131n\u0131 sabit tutun, s\u0131cak noktalarda noktasal so\u011futma kullan\u0131n.<\/li>\n<li>Her vuru\u015fun h\u0131z ve bas\u0131n\u00e7 e\u011frilerini kaydedin, s\u0131n\u0131r d\u0131\u015f\u0131 de\u011ferlerde alarm tan\u0131mlay\u0131n.<\/li>\n<li>R\u00f6ntgen ve s\u0131zd\u0131rmazl\u0131k sonu\u00e7lar\u0131n\u0131 vuru\u015f kay\u0131tlar\u0131yla e\u015fle\u015ftirin.<\/li>\n<\/ol>\n<h2>S\u0131k Sorulan Sorular<\/h2>\n<h3>Bas\u0131n\u00e7l\u0131 d\u00f6k\u00fcmde porozite tamamen s\u0131f\u0131rlanabilir mi?<\/h3>\n<p>Pratikte s\u0131f\u0131r porozite hedefi bas\u0131n\u00e7l\u0131 d\u00f6k\u00fcmde ger\u00e7ek\u00e7i de\u011fildir. Ger\u00e7ek\u00e7i hedef, porozitenin par\u00e7an\u0131n i\u015flevini ve m\u00fc\u015fteri spesifikasyonunu bozmayacak seviyede ve kritik b\u00f6lgelerin d\u0131\u015f\u0131nda tutulmas\u0131d\u0131r.<\/p>\n<h3>Kabul edilebilir porozite oran\u0131 nedir?<\/h3>\n<p>Tek bir evrensel de\u011fer yoktur. S\u0131n\u0131r; par\u00e7an\u0131n i\u015flevine, s\u0131zd\u0131rmazl\u0131k ya da yap\u0131sal y\u00fck gereksinimine ve m\u00fc\u015fterinin kabul spesifikasyonuna g\u00f6re belirlenir. Bu y\u00fczden kabul kriterlerini \u00fcretimden \u00f6nce yaz\u0131l\u0131 hale getirmek gerekir.<\/p>\n<h3>Vakum sistemi her par\u00e7a i\u00e7in gerekli mi?<\/h3>\n<p>Hay\u0131r. Vakum, \u00f6zellikle \u0131s\u0131l i\u015flem g\u00f6ren, s\u0131zd\u0131rmaz olmas\u0131 gereken ya da yap\u0131sal par\u00e7alarda anlaml\u0131d\u0131r. Basit ve kritik olmayan par\u00e7alarda do\u011fru enjeksiyon profili ile iyi havaland\u0131rma \u00e7o\u011fu zaman yeterli sonu\u00e7 verir.<\/p>\n<h3>Porozite sorunu ya\u015f\u0131yorsak \u00f6nce neyi kontrol etmeliyiz?<\/h3>\n<p>\u00d6nce hatan\u0131n t\u00fcr\u00fcn\u00fc belirleyin. Sonra enjeksiyon e\u011frilerinizi, kal\u0131p s\u0131cakl\u0131\u011f\u0131n\u0131z\u0131, sprey miktar\u0131n\u0131z\u0131 ve eriyik kalitenizi g\u00f6zden ge\u00e7irin. Bu d\u00f6rt ba\u015fl\u0131k, sorunlar\u0131n b\u00fcy\u00fck b\u00f6l\u00fcm\u00fcn\u00fcn kayna\u011f\u0131n\u0131 g\u00f6sterir.<\/p>\n<h2>Sonu\u00e7: Porozite, \u00d6l\u00e7\u00fclebilen ve Y\u00f6netilebilen Bir Hatad\u0131r<\/h2>\n<p>Al\u00fcminyum d\u00f6k\u00fcmde porozite tek bir nedene ba\u011fl\u0131 de\u011fildir. Hava, nem, sprey gaz\u0131, kat\u0131la\u015fma \u00e7ekmesi ve kal\u0131p s\u0131cakl\u0131\u011f\u0131 birlikte rol oynar. \u0130yi haber \u015fu ki bu fakt\u00f6rlerin hepsi \u00f6l\u00e7\u00fclebilir ve kontrol edilebilir. Proses kay\u0131tlar\u0131n\u0131 tutan, parametrelere s\u0131n\u0131r koyan ve hata t\u00fcr\u00fcn\u00fc do\u011fru te\u015fhis eden tesisler, hurda oran\u0131n\u0131 ve m\u00fc\u015fteri \u015fik\u00e2yetini belirgin bi\u00e7imde azalt\u0131r.<\/p>\n<p>Elinizdeki makine eski olsa bile \u00e7\u00f6z\u00fcm yeni yat\u0131r\u0131m olmak zorunda de\u011fildir. Teknik ekibimiz her marka so\u011fuk kamaral\u0131 enjeksiyon makinas\u0131n\u0131n kontrol sistemini g\u00fcncelleyebilir. <a href='https:\/\/www.erapres.com.tr\/en\/alkaline-pressure-controlled-burner\/'>Revizyon makinalar<\/a> sayfam\u0131zdan bu hizmetin kapsam\u0131na bakabilirsiniz. Sat\u0131\u015f sonras\u0131 destek ve operat\u00f6r e\u011fitimleri i\u00e7in <a href='https:\/\/www.erapres.com.tr\/en\/service-training\/'>servis ve e\u011fitim<\/a> sayfam\u0131z da yan\u0131n\u0131zda.<\/p>\n<p>Hatt\u0131n\u0131zdaki porozite sorununu birlikte de\u011ferlendirmek isterseniz bize <strong>+90 216 540 13 65<\/strong> numaral\u0131 telefondan veya <a href='https:\/\/www.erapres.com.tr\/en\/contact-3\/'>teklif formundan<\/a> ula\u015fabilirsiniz.<\/p>\n<\/div>\n<\/div><\/div><\/div><\/div><div id=\"pgc-7042-0-2\"  class=\"panel-grid-cell panel-grid-cell-empty\" ><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Al\u00fcminyum bas\u0131n\u00e7l\u0131 d\u00f6k\u00fcmde gaz ve \u00e7ekinti porozitesinin nedenlerini, tespit y\u00f6ntemlerini ve enjeksiyon, kal\u0131p ile eriyik kontrol\u00fcyle \u00f6nleme yollar\u0131n\u0131 \u00f6\u011frenin.<\/p>","protected":false},"author":9,"featured_media":6635,"comment_status":"open","ping_status":"open","sticky":false,"template":"post-templates\/post_full.php","format":"standard","meta":{"footnotes":""},"categories":[162],"tags":[],"class_list":["post-7042","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-soguk-kamarali-enjeksiyon-makinalari"],"_links":{"self":[{"href":"https:\/\/www.erapres.com.tr\/en\/wp-json\/wp\/v2\/posts\/7042","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.erapres.com.tr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.erapres.com.tr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.erapres.com.tr\/en\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/www.erapres.com.tr\/en\/wp-json\/wp\/v2\/comments?post=7042"}],"version-history":[{"count":1,"href":"https:\/\/www.erapres.com.tr\/en\/wp-json\/wp\/v2\/posts\/7042\/revisions"}],"predecessor-version":[{"id":7043,"href":"https:\/\/www.erapres.com.tr\/en\/wp-json\/wp\/v2\/posts\/7042\/revisions\/7043"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.erapres.com.tr\/en\/wp-json\/wp\/v2\/media\/6635"}],"wp:attachment":[{"href":"https:\/\/www.erapres.com.tr\/en\/wp-json\/wp\/v2\/media?parent=7042"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.erapres.com.tr\/en\/wp-json\/wp\/v2\/categories?post=7042"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.erapres.com.tr\/en\/wp-json\/wp\/v2\/tags?post=7042"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}