{"id":6825,"date":"2020-06-11T02:43:10","date_gmt":"2020-06-11T02:43:10","guid":{"rendered":"http:\/\/www.adtechamm.com\/?p=6825"},"modified":"2020-06-11T02:44:56","modified_gmt":"2020-06-11T02:44:56","slug":"40-ppi-cff","status":"publish","type":"post","link":"https:\/\/www.adtechamm.com\/tr\/40-ppi-cff\/","title":{"rendered":"40 ppi Cff"},"content":{"rendered":"

40 ppi Cff \u00fcreticisi: Al\u00fcminyum ala\u015f\u0131ml\u0131 d\u00f6k\u00fcm k\u00fcl\u00e7eleri i\u00e7in kusur analizi ve \u00e7\u00f6z\u00fcmleri<\/strong><\/p>\n

D\u00f6k\u00fcm al\u00fcminyum ala\u015f\u0131ml\u0131 k\u00fcl\u00e7elerin \u00fcretim s\u00fcrecinde, uygun olmayan bir kontrol s\u00f6z konusu oldu\u011funda, \u00f6zellikle ADC12 ve A356 gibi al\u00fcminyum-silikon ala\u015f\u0131mlar\u0131nda s\u0131kl\u0131kla \u00e7e\u015fitli \u00fcr\u00fcn kusurlar\u0131 ortaya \u00e7\u0131kar.<\/p>\n

K\u00fcl\u00e7elerde kimyasal bile\u015fenlerin ayr\u0131\u015fmas\u0131 K\u00fcl\u00e7elerde kimyasal bile\u015fenlerin dengesiz da\u011f\u0131l\u0131m\u0131 olgusuna ayr\u0131\u015fma denir. Deforme edilmi\u015f al\u00fcminyum ala\u015f\u0131mlar\u0131nda ayr\u0131\u015fma, esas olarak tanecik i\u00e7i ayr\u0131\u015fma ve ters ayr\u0131\u015fmay\u0131 i\u00e7erir.<\/p>\n

\"40<\/p>\n

Tanecik i\u00e7i ayr\u0131\u015fma<\/strong>
\nMikro yap\u0131da tanelerdeki kimyasal bile\u015fimin dengesizli\u011fi olgusuna \u201ctaneler i\u00e7i ayr\u0131\u015fma\u201d denir.
\nTanecik i\u00e7i ayr\u0131\u015fman\u0131n mikroyap\u0131sal \u00f6zelli\u011fi, a\u015f\u0131nm\u0131\u015f tanecik i\u00e7i yap\u0131n\u0131n a\u011fa\u00e7 halkas\u0131 \u015feklindeki yap\u0131ya benzemesidir. Taneciklerdeki mikro sertlik farkl\u0131d\u0131r; tanecik s\u0131n\u0131rlar\u0131na yak\u0131n b\u00f6lgelerdeki mikro sertlik y\u00fcksek, taneciklerin merkezindeki mikro sertlik ise d\u00fc\u015f\u00fckt\u00fcr.
\nTanecik i\u00e7i ayr\u0131\u015fman\u0131n varl\u0131\u011f\u0131, tanecik i\u00e7indeki kimyasal bile\u015fimi ve k\u00fcl\u00e7enin yap\u0131s\u0131n\u0131 son derece dengesiz hale getirir; bu da k\u00fcl\u00e7enin performans\u0131n\u0131 ciddi \u015fekilde bozar; ba\u015fl\u0131ca olarak:
\n1. Kat\u0131 \u00e7\u00f6zelti kristallerinde meydana gelen ayr\u0131\u015fman\u0131n yol a\u00e7t\u0131\u011f\u0131 kimyasal bile\u015fim dengesizli\u011fi ve dengesiz faz fazlal\u0131\u011f\u0131, ala\u015f\u0131m\u0131n elektrokimyasal korozyona kar\u015f\u0131 direncini azalt\u0131r.
\n2. Dengesiz \u00f6tektik veya d\u00fc\u015f\u00fck erime noktal\u0131 bile\u015fimlerin ortaya \u00e7\u0131kmas\u0131, ala\u015f\u0131m\u0131n erime s\u0131cakl\u0131\u011f\u0131n\u0131 d\u00fc\u015f\u00fcr\u00fcr; bu da, sonraki termal deformasyon veya suyla s\u00f6nd\u00fcrme \u0131s\u0131tma i\u015flemi s\u0131ras\u0131nda yerel a\u015f\u0131r\u0131 yanma olu\u015fumunu kolayla\u015ft\u0131r\u0131r.
\n3. Tanecik i\u00e7i ayr\u0131\u015fma, sadece dengesiz fazlar\u0131n ortaya \u00e7\u0131kmas\u0131na neden olmakla ve ikinci fazlar\u0131n say\u0131s\u0131n\u0131 art\u0131rmakla kalmaz; ayn\u0131 zamanda bu d\u00fc\u015f\u00fck erime noktal\u0131 fazlar, kristal dendritlerin \u00e7evresinde sert ve k\u0131r\u0131lgan bir dendrit a\u011f\u0131 olu\u015fturur ve bu da k\u00fcl\u00e7enin plastisitesini ve i\u015flenebilirli\u011fini \u00f6nemli \u00f6l\u00e7\u00fcde azalt\u0131r.
\n4. Taneler i\u00e7i ayr\u0131\u015fman\u0131n yol a\u00e7t\u0131\u011f\u0131 kimyasal bile\u015fimdeki dengesizlik, yar\u0131 mamul \u00fcr\u00fcne de aktar\u0131l\u0131r ve bu da tavlama i\u015fleminden sonra i\u015flenmi\u015f malzemede iri tanelerin olu\u015fmas\u0131na neden olur.<\/p>\n

Kristal i\u00e7i ayr\u0131\u015fma, dengesiz kristalle\u015fmeden kaynaklan\u0131r. Bu nedenle, al\u00fcminyum ala\u015f\u0131mlar\u0131n\u0131n s\u00fcrekli d\u00f6k\u00fcm\u00fcnde kristal i\u00e7i ayr\u0131\u015fma ka\u00e7\u0131n\u0131lmazd\u0131r. Kristal i\u00e7i ayr\u0131\u015fmay\u0131 ortadan kald\u0131rman\u0131n etkili bir y\u00f6ntemi, k\u00fcl\u00e7eyi uzun s\u00fcre homojenle\u015ftirmektir.<\/p>\n

\"d\u00f6k\u00fcm<\/p>\n

S\u00fcrekli d\u00f6k\u00fcmde, kristal i\u00e7i ayr\u0131\u015fmay\u0131 azaltmaya y\u00f6nelik y\u00f6ntem \u015fudur:<\/strong>
\n1. So\u011fuma h\u0131z\u0131n\u0131 art\u0131r\u0131n, taneleri ve taneler aras\u0131 yap\u0131y\u0131 inceltmek i\u00e7in metamorfik i\u015flem uygulay\u0131n ve taneler aras\u0131 ayr\u0131\u015fman\u0131n kapsam\u0131n\u0131 daralt\u0131n.
\n2. Tamamen z\u0131t bir y\u00f6ntem kullanarak so\u011fuma h\u0131z\u0131n\u0131 d\u00fc\u015f\u00fcr\u00fcn ve ayr\u0131\u015fman\u0131n derecesini azaltmak amac\u0131yla demir, manganez ve di\u011fer elementlerin a\u015f\u0131r\u0131 doygunluk derecesini d\u00fc\u015f\u00fcrmek i\u00e7in k\u00fcl\u00e7e d\u00f6k\u00fcm\u00fcne benzer bir derin s\u0131v\u0131 bo\u015fluklu d\u00f6k\u00fcm i\u015flemi ger\u00e7ekle\u015ftirin.
\n3. Ala\u015f\u0131m\u0131n kristal \u00f6zelliklerini uygun \u015fekilde de\u011fi\u015ftirebilecek baz\u0131 katk\u0131 maddeleri se\u00e7in. \u00d6rne\u011fin, 3A21 ala\u015f\u0131m\u0131na uygun miktarda demir eklenmesi, kat\u0131 hal banyosundaki manganez konsantrasyonunu azalt\u0131r ve b\u00f6ylece tanelerdeki manganez da\u011f\u0131l\u0131m\u0131ndaki dengesizli\u011fi azalt\u0131r. Ger\u00e7ek \u00fcretimde, safs\u0131zl\u0131k demiri mevcut oldu\u011funda, titanyum ilavesi, 3A21 ala\u015f\u0131m\u0131n\u0131n kat\u0131 \u00e7\u00f6zelti tanelerindeki ayr\u0131\u015fmay\u0131 azaltmak a\u00e7\u0131s\u0131ndan faydal\u0131d\u0131r; \u00e7\u00fcnk\u00fc titanyum ayr\u0131\u015fmas\u0131 ile manganez ayr\u0131\u015fmas\u0131n\u0131n y\u00f6nleri z\u0131tt\u0131r ve dendritin merkezi titanyum i\u00e7erir; bu da kat\u0131 tanenin merkezindeki ve kenar\u0131ndaki kat\u0131 eriyik konsantrasyonu aras\u0131ndaki fark\u0131 azalt\u0131r.<\/p>\n

Ters ayr\u0131\u015fma kusurlar\u0131n\u0131n analizi ve \u00e7\u00f6z\u00fcmleri<\/strong>
\nK\u00fcl\u00e7enin kenar\u0131ndaki \u00e7\u00f6z\u00fcnen madde konsantrasyonunun, k\u00fcl\u00e7enin merkezindeki \u00e7\u00f6z\u00fcnen madde konsantrasyonundan daha y\u00fcksek olmas\u0131 olgusuna ters ayr\u0131\u015fma denir.
\nTers ayr\u0131\u015fman\u0131n yap\u0131sal \u00f6zellikleri, mikroyap\u0131dan kolayca ay\u0131rt edilemez ve yaln\u0131zca kimyasal bile\u015fim analiziyle do\u011frulanabilir.<\/p>\n

Al\u00fcminyum ala\u015f\u0131ml\u0131 k\u00fcl\u00e7elerde g\u00f6r\u00fclen ters ayr\u0131\u015fma, k\u00fcl\u00e7elerin ve bas\u0131n\u00e7la i\u015flenmi\u015f \u00fcr\u00fcnlerinin mekanik ve fiziksel \u00f6zelliklerindeki b\u00fcy\u00fck farkl\u0131l\u0131klar\u0131n \u00f6nemli bir nedenidir.
\nTers ayr\u0131\u015fman\u0131n \u015fiddetli oldu\u011fu b\u00f6lgelerde, kimyasal bile\u015fim standart s\u0131n\u0131rlar\u0131n\u0131 a\u015farken, mekanik \u00f6zellikler de standartlar\u0131n \u00fczerinde oldu\u011fu i\u00e7in bu malzemeler hurdaya ayr\u0131l\u0131r.<\/p>\n

Ters ayr\u0131\u015fma, al\u00fcminyum ala\u015f\u0131ml\u0131 s\u00fcrekli k\u00fct\u00fcklerin kat\u0131la\u015fma s\u00fcrecinde ortaya \u00e7\u0131kan bir kar\u0131\u015fma olgusudur; bu durum tamamen \u00f6nlenemez ve y\u00fcksek s\u0131cakl\u0131kta homojenle\u015ftirme yoluyla da ortadan kald\u0131r\u0131lamaz.
\nBununla birlikte, ters ayr\u0131\u015fman\u0131n olu\u015fum kurallar\u0131 ve etkileyen fakt\u00f6rlere g\u00f6re, elementlerin ayr\u0131\u015fmas\u0131 izin verilen aral\u0131k i\u00e7inde kontrol edilebilir. \u00c7\u00f6z\u00fcm \u015fudur:
\n1. K\u00fct\u00fc\u011f\u00fcn so\u011fuma mukavemetini art\u0131rmak.
\n2. A\u00e7\u0131\u011fa \u00e7\u0131kan s\u0131v\u0131 y\u00fczeyine ge\u00e7i\u015f b\u00f6lgesinin e\u011fim a\u00e7\u0131s\u0131n\u0131n \u00e7ok b\u00fcy\u00fck olmamas\u0131 i\u00e7in uygun bir d\u00f6k\u00fcm h\u0131z\u0131 se\u00e7in; bu a\u00e7\u0131 genellikle 60\u00b0\u2019yi ge\u00e7memelidir.
\n3. D\u00f6k\u00fcm s\u0131cakl\u0131\u011f\u0131n\u0131 uygun \u015fekilde art\u0131r\u0131n.
\n4. Ak\u0131\u015f\u0131 d\u00fczg\u00fcn bir \u015fekilde y\u00f6nlendirmek ve k\u00fct\u00fc\u011f\u00fcn kenar\u0131na do\u011fru akmas\u0131n\u0131 sa\u011flamak i\u00e7in uygun bir d\u00f6k\u00fcm hunisi kullan\u0131n.<\/p>\n

40 ppi Cff \u00fcreticisi: k\u00fcl\u00e7ede gaz ve metalik olmayan kal\u0131nt\u0131lar<\/strong><\/p>\n

Metal olmayan kal\u0131nt\u0131lar (c\u00fcruf kal\u0131nt\u0131lar\u0131)<\/strong>
\nK\u00fcl\u00e7eye kar\u0131\u015fan c\u00fcruf veya k\u00fcl\u00e7eye kar\u0131\u015fan di\u011fer metal olmayan safs\u0131zl\u0131klara metal olmayan kal\u0131nt\u0131lar denir.
\nK\u0131r\u0131lma \u00f6zellikleri siyah \u015feritler veya pullar \u015feklindedir; mikroyap\u0131 \u00f6zellikleri ise \u00e7o\u011funlukla siyah, do\u011frusal, blok \u015feklinde ve topak topak d\u00fczensiz dokulardan olu\u015fur ve bunlar alt tabakadan belirgin bir renk fark\u0131 g\u00f6sterir.
\nMetal olmayan kal\u0131nt\u0131lar, al\u00fcminyumdan \u00fcretilen \u00fcr\u00fcnlerde tabakalar\u0131n ayr\u0131lmas\u0131 ve bir\u00e7ok y\u00fczey kusurunun \u00f6nemli bir nedenidir.
\nIs\u0131l i\u015flem ve \u0131s\u0131tma s\u0131ras\u0131nda, metalik olmayan kal\u0131nt\u0131lar\u0131n varl\u0131\u011f\u0131 ikincil g\u00f6zeneklili\u011fin ve kabarc\u0131k olu\u015fumunun artmas\u0131na neden olabilir.
\nMekanik \u00f6zellikler a\u00e7\u0131s\u0131ndan, metal olmayan kal\u0131nt\u0131lar gerilimin yo\u011funla\u015ft\u0131\u011f\u0131 yerlerdir ve bu da ala\u015f\u0131m\u0131n mukavemet s\u0131n\u0131r\u0131n\u0131 ve uzama oran\u0131n\u0131 d\u00fc\u015f\u00fcr\u00fcr.
\n\u00d6zellikle, enine uzama ve dinamik mekanik \u00f6zelliklerdeki (darbe dayan\u0131m\u0131, yorulma mukavemeti ve k\u0131r\u0131lma dayan\u0131m\u0131) azalma daha ciddi boyuttad\u0131r.
\nBuna ek olarak, metalik olmayan kal\u0131nt\u0131lar da ala\u015f\u0131m\u0131n gerilme korozyonuna kar\u015f\u0131 direncini azaltacakt\u0131r.<\/p>\n

K\u00fcl\u00e7e \u00fczerinde d\u00fc\u015f\u00fck b\u00fcy\u00fckl\u00fckteki test par\u00e7alar\u0131 incelendi\u011finde genellikle metalik olmayan kal\u0131nt\u0131lar (c\u00fcruf kal\u0131nt\u0131lar\u0131) tespit edilebilir.<\/strong>
\nYS67-1993 standard\u0131, t\u00fcm ala\u015f\u0131ml\u0131 \u00fcr\u00fcnler i\u00e7in k\u00fcl\u00e7e test par\u00e7as\u0131nda en fazla iki adet c\u00fcruf noktas\u0131 bulunabilece\u011fini ve her bir alan\u0131n 0,5 mm\u00b2'den az olmas\u0131 gerekti\u011fini belirtir; aksi takdirde \u00fcr\u00fcn reddedilir.
\nMetal olmayan kal\u0131nt\u0131lar (c\u00fcruf kal\u0131nt\u0131lar\u0131), al\u00fcminyum ala\u015f\u0131ml\u0131 k\u00fcl\u00e7elerde en s\u0131k rastlanan at\u0131k maddelerdir.
\n\u0130statistiklere g\u00f6re, kalite a\u00e7\u0131s\u0131ndan c\u00fcruf kal\u0131nt\u0131lar\u0131 nedeniyle hurdaya ayr\u0131lan k\u00fcl\u00e7eler, toplam at\u0131\u011f\u0131n 10% ila 25%\u2019sini olu\u015fturmaktad\u0131r. C\u00fcruf kal\u0131nt\u0131lar\u0131 genellikle d\u00f6k\u00fcm i\u015flemi s\u0131ras\u0131nda s\u0131v\u0131 metal ile birlikte k\u00fcl\u00e7eye kar\u0131\u015fan c\u00fcruf, astar par\u00e7alar\u0131 ve iri boyutlu oksitlerden kaynaklan\u0131r.<\/p>\n

C\u00fcruf kal\u0131nt\u0131lar\u0131n\u0131 \u00f6nlemenin yolu \u015fudur:<\/strong>
\n1. Bekletme s\u00fcresini sa\u011flamak i\u00e7in dikkatlice ar\u0131tma i\u015flemi yapmak ve ak\u0131\u015f plakas\u0131 veya huni i\u00e7inde cam bezle s\u00fczmek.
\n2. Aktar\u0131m mesafesini m\u00fcmk\u00fcn oldu\u011funca k\u0131salt\u0131n, uygun aktar\u0131m ko\u015fullar\u0131n\u0131 sa\u011flay\u0131n; metal seviyesindeki dalgalanmalar\u0131 \u00f6nlemek i\u00e7in ak\u0131\u015f kanal\u0131ndaki, ak\u0131\u015f plakas\u0131ndaki ve hunideki t\u00fcm a\u00e7\u0131k u\u00e7lar\u0131 kapat\u0131n. M\u00fcmk\u00fcnse ayn\u0131 seviyede d\u00f6k\u00fcm kullanmak en iyisidir.
\n3. Aktar\u0131m aletini iyice f\u0131r\u0131nlay\u0131n, d\u00f6k\u00fcm s\u0131cakl\u0131\u011f\u0131n\u0131 uygun \u015fekilde y\u00fckseltin, d\u00f6k\u00fcm i\u015flemi s\u0131ras\u0131nda c\u00fcrufu dikkatlice temizleyin ve d\u00f6k\u00fcmden sonra f\u0131r\u0131n\u0131, ak\u0131\u015f plakas\u0131n\u0131 ve di\u011fer aletleri \u00f6zenle temizleyin.
\n4. Temiz \u015farj kullan\u0131n.<\/p>\n

40 ppi Cff \u00fcreticisi: Oksit film kusurlar\u0131n\u0131n analizi ve \u00e7\u00f6z\u00fcm\u00fc<\/strong><\/p>\n

YS\/T417.1-1999 standard\u0131ndaki tan\u0131ma g\u00f6re, oksit tabakas\u0131, k\u00fcl\u00e7ede esas olarak al\u00fcminyum oksitten olu\u015fan metalik olmayan kal\u0131nt\u0131lar ve d\u0131\u015far\u0131 at\u0131lmam\u0131\u015f gazd\u0131r (\u00e7o\u011funlukla hidrojen).
\nBu nedenle, oksit tabakas\u0131, k\u00fcl\u00e7e i\u00e7indeki metalik olmayan kal\u0131nt\u0131lar\u0131n olu\u015fturdu\u011fu bir t\u00fcr kendine \u00f6zg\u00fc kusurdur; ancak c\u00fcruf kal\u0131nt\u0131s\u0131ndan farkl\u0131d\u0131r. K\u00fct\u00fc\u011f\u00fcn d\u00fc\u015f\u00fck b\u00fcy\u00fctme oranl\u0131 test par\u00e7as\u0131 ve k\u0131r\u0131lma yap\u0131s\u0131 incelendi\u011finde tespit edilemez; yaln\u0131zca \u00f6zel i\u015flenmi\u015f numuneler kullan\u0131larak (k\u00fct\u00fck numunelerinin d\u00f6v\u00fclmesi yoluyla) tespit edilebilir.<\/p>\n

K\u00fcl\u00e7e i\u015fleme numunesinin k\u0131r\u0131k y\u00fczeyinde bulunan oksit tabakas\u0131, genel olarak \u00fc\u00e7 t\u00fcre ayr\u0131labilir
\nBunlardan biri, a\u00e7\u0131k sar\u0131, kahverengi veya koyu kahverengi bir tabaka halindeki oksit filmdir.
\n\u0130lk t\u00fcr, tabaka halindeki oksit filmine benzer, beyaz ve parlak bir y\u00fczeye sahip \u201csparkle\u201dd\u0131r.
\nDi\u011fer t\u00fcr ise g\u00fcm\u00fc\u015f-beyaz bir parlakl\u0131\u011fa sahip, yuvarlak veya oval \u015fekilli \u201ck\u00fc\u00e7\u00fck parlak noktalar\u201dd\u0131r.<\/p>\n

Erimi\u015f metal kristalle\u015fti\u011finde, kristalle\u015fme sonras\u0131nda dendrit i\u00e7inde olu\u015fan mikro g\u00f6zenekler, matrisin dendritleri aras\u0131nda s\u0131v\u0131 metalin yetersiz bir \u015fekilde dolmas\u0131 ya da d\u0131\u015far\u0131 at\u0131lmam\u0131\u015f gaz\u0131n (ba\u015fl\u0131ca hidrojen) varl\u0131\u011f\u0131 nedeniyle gev\u015fek bir yap\u0131ya sahiptir.
\nYetersiz dolum sonucu olu\u015fan g\u00f6zeneklere \u201cb\u00fcz\u00fclme bo\u015flu\u011fu\u201d denir; gaz\u0131n olu\u015fturdu\u011fu bo\u015flu\u011fa ise \u201cgaz bo\u015flu\u011fu\u201d denir.
\nGev\u015fek makroskobik yap\u0131, siyah i\u011fne deli\u011fi benzeri deliklerle karakterize edilir; k\u0131r\u0131k yap\u0131s\u0131 ise p\u00fcr\u00fczl\u00fc ve yo\u011fun olmayan bir doku ile karakterize edilir. Gev\u015feklik ciddi boyutta oldu\u011funda, k\u0131r\u0131k \u00fczerinde k\u00fc\u00e7\u00fck, beyaz ve parlak noktalar g\u00f6r\u00fcl\u00fcr.
\nMikro yap\u0131, k\u00f6\u015feli siyah deliklerle karakterize edilir; gev\u015feklik ne kadar \u015fiddetli olursa, siyah deliklerin say\u0131s\u0131 o kadar artar ve boyutlar\u0131 da o kadar b\u00fcy\u00fcr.<\/p>\n

Gev\u015feklik, k\u00fcl\u00e7enin yo\u011funlu\u011funu ve y\u00fcksek mukavemetli al\u00fcminyum ala\u015f\u0131m\u0131n\u0131n yo\u011funlu\u011funu, \u00f6zellikle de darbe toklu\u011funu ve yanal uzama oran\u0131n\u0131 d\u00fc\u015f\u00fcr\u00fcr.
\nBuna ek olarak, gev\u015fek k\u00fcl\u00e7eler s\u0131cak haddeleme ve d\u00f6vme i\u015flemleri s\u0131ras\u0131nda \u00e7atlaklara neden olur ve yar\u0131 mamullerde sferoidle\u015ftirme tavlamas\u0131 s\u0131ras\u0131nda kabarc\u0131klar olu\u015fur.
\nBu nedenle, k\u00fcl\u00e7elerin \u00f6nemli bir yap\u0131sal kusuru olan gev\u015feme durumunun \u00f6nlenmesi gerekmektedir. K\u00fcl\u00e7ede meydana gelen gev\u015femeyi s\u0131k\u0131 bir \u015fekilde kontrol edin. Standartta izin verilen seviyeyi a\u015ft\u0131\u011f\u0131 takdirde, k\u00fcl\u00e7e reddedilecektir.
\nAl\u00fcminyum ala\u015f\u0131ml\u0131 k\u00fcl\u00e7edeki gev\u015feklik derecesi, genellikle numunenin yo\u011funlu\u011funun \u00f6l\u00e7\u00fclmesi ve bunun ala\u015f\u0131m\u0131n teorik yo\u011funlu\u011fuyla kar\u015f\u0131la\u015ft\u0131r\u0131lmas\u0131 yoluyla belirlenebilir.<\/p>\n

Gev\u015femenin olu\u015fum s\u00fcreci ve etkileyen fakt\u00f6rlere g\u00f6re, k\u00fcl\u00e7enin gev\u015femesini \u00f6nlemeye y\u00f6nelik y\u00f6ntem \u015f\u00f6yledir:<\/strong><\/p>\n

1. Eriyikteki gaz miktar\u0131n\u0131 azalt\u0131n. Bunun i\u00e7in temel olarak a\u015fa\u011f\u0131dakileri yapmal\u0131s\u0131n\u0131z:
\n1. F\u0131r\u0131n b\u00fcy\u00fckt\u00fcr ve orta d\u00fczeyde onar\u0131m\u0131n ard\u0131ndan f\u0131r\u0131n iyice temizlenmelidir.
\n2. Rafine edici maddenin ve d\u00f6k\u00fcm kal\u0131plar\u0131n\u0131n \u00f6n \u0131s\u0131tmas\u0131 ve f\u0131r\u0131nlanmas\u0131 eksiksiz bir \u015fekilde yap\u0131lmal\u0131d\u0131r.
\n3. Ar\u0131tma i\u015flemi titizlikle yap\u0131lmal\u0131d\u0131r; (4) Eriyi\u011fin f\u0131r\u0131nda \u00e7ok uzun s\u00fcre kalmas\u0131n\u0131 \u00f6nlemek i\u00e7in.<\/p>\n

K\u00fcl\u00e7edeki ge\u00e7i\u015f b\u00f6lgesinin boyutunu azalt\u0131n. Ba\u015fl\u0131ca \u00f6nlemler \u015funlard\u0131r:<\/p>\n

Al\u00fcminyum ala\u015f\u0131ml\u0131 s\u00fcrekli k\u00fct\u00fckteki gev\u015feklik, her zaman geni\u015f bir ge\u00e7i\u015f b\u00f6lgesi ile birlikte e\u015feksenli kristal alan\u0131nda da\u011f\u0131l\u0131r ve her zaman gazla doludur. Normal ko\u015fullar alt\u0131nda, d\u00fcz k\u00fct\u00fc\u011f\u00fcn en geni\u015f gev\u015feklik alan\u0131, geni\u015f y\u00fczey kabuk tabakas\u0131n\u0131n 30 mm'lik bir mesafesi i\u00e7inde ortaya \u00e7\u0131kar. K\u00fct\u00fc\u011f\u00fcn en geni\u015f gev\u015feklik alan\u0131 k\u00fct\u00fc\u011f\u00fcn merkezinde bulunur ve kristalle\u015ftirici y\u00fcksekli\u011fi artt\u0131k\u00e7a yanlara do\u011fru geni\u015fler. Su besleme ko\u015fullar\u0131 gev\u015fekli\u011fin da\u011f\u0131l\u0131m\u0131 \u00fczerinde b\u00fcy\u00fck bir etkiye sahiptir ve yukar\u0131daki kurallar\u0131 bozarak yerel alanlarda maksimum gev\u015fekli\u011fe neden olabilir.<\/p>","protected":false},"excerpt":{"rendered":"

40 ppi Cff manufacturer: Defect analysis and solutions for casting aluminum alloy ingots In the production process of cast aluminum alloy ingots, if improper control occurs, various product defects often occur, especially aluminum-silicon alloys such as ADC12 and A356. Segregation of chemical components in ingots…<\/p>","protected":false},"author":1,"featured_media":6826,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[52],"tags":[],"yoast_head":"\n40 ppi Cff | Adtech China - sales@adtechamm.com<\/title>\n<meta name=\"description\" content=\"40 ppi Cff manufacturer: Defect analysis and solutions for casting aluminum alloy ingots. pls visit www.adtechamm.com for more.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.adtechamm.com\/tr\/40-ppi-cff\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"40 ppi Cff | Adtech China - sales@adtechamm.com\" \/>\n<meta property=\"og:description\" content=\"40 ppi Cff manufacturer: Defect analysis and solutions for casting aluminum alloy ingots. pls visit www.adtechamm.com for more.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.adtechamm.com\/tr\/40-ppi-cff\/\" \/>\n<meta property=\"og:site_name\" content=\"Adtech China\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/avril.allen.3994\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/profile.php?id=100058838456679\" \/>\n<meta property=\"article:published_time\" content=\"2020-06-11T02:43:10+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2020-06-11T02:44:56+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.adtechamm.com\/wp-content\/uploads\/2020\/06\/40-ppi-Cff.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"800\" \/>\n\t<meta property=\"og:image:height\" content=\"600\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"AdTech\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@AdTech_China\" \/>\n<meta name=\"twitter:site\" content=\"@AdTech_China\" \/>\n<meta name=\"twitter:label1\" content=\"Yazan:\" \/>\n\t<meta name=\"twitter:data1\" content=\"AdTech\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tahmini okuma s\u00fcresi\" \/>\n\t<meta name=\"twitter:data2\" content=\"8 dakika\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.adtechamm.com\/40-ppi-cff\/\",\"url\":\"https:\/\/www.adtechamm.com\/40-ppi-cff\/\",\"name\":\"40 ppi Cff | Adtech China - sales@adtechamm.com\",\"isPartOf\":{\"@id\":\"https:\/\/www.adtechamm.com\/#website\"},\"datePublished\":\"2020-06-11T02:43:10+00:00\",\"dateModified\":\"2020-06-11T02:44:56+00:00\",\"author\":{\"@id\":\"https:\/\/www.adtechamm.com\/#\/schema\/person\/3e620479604c811a3f1f75bb70841291\"},\"description\":\"40 ppi Cff manufacturer: Defect analysis and solutions for casting aluminum alloy ingots. pls visit www.adtechamm.com for more.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.adtechamm.com\/40-ppi-cff\/#breadcrumb\"},\"inLanguage\":\"tr\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.adtechamm.com\/40-ppi-cff\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.adtechamm.com\/40-ppi-cff\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.adtechamm.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"40 ppi Cff\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.adtechamm.com\/#website\",\"url\":\"https:\/\/www.adtechamm.com\/\",\"name\":\"Adtech China\",\"description\":\"Alumina ceramic foam filter, aluminum degassing\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.adtechamm.com\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"tr\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.adtechamm.com\/#\/schema\/person\/3e620479604c811a3f1f75bb70841291\",\"name\":\"AdTech\",\"description\":\"Alumina ceramic foam filter & degassing unit\",\"sameAs\":[\"https:\/\/www.adtechamm.com\/\",\"https:\/\/www.facebook.com\/profile.php?id=100058838456679\",\"https:\/\/www.linkedin.com\/in\/--618200221\/\",\"https:\/\/youtube.com\/@adtechamm2577\",\"https:\/\/www.tumblr.com\/adtechmetallurgicalmaterials\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"40 ppi Cff | Adtech China - sales@adtechamm.com","description":"40 ppi Cff \u00fcreticisi: Al\u00fcminyum ala\u015f\u0131ml\u0131 d\u00f6k\u00fcm k\u00fcl\u00e7eleri i\u00e7in kusur analizi ve \u00e7\u00f6z\u00fcmleri. 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