{"id":5181,"date":"2019-06-13T05:52:17","date_gmt":"2019-06-13T05:52:17","guid":{"rendered":"http:\/\/www.adtechamm.com\/?p=5181"},"modified":"2019-06-13T09:51:20","modified_gmt":"2019-06-13T09:51:20","slug":"nitrogen-degassing-aluminum-operating-procedures","status":"publish","type":"post","link":"https:\/\/www.adtechamm.com\/tr\/nitrogen-degassing-aluminum-operating-procedures\/","title":{"rendered":"Al\u00fcminyumda Azot Gaz\u0131n\u0131n Giderilmesi \u0130\u015flem Prosed\u00fcrleri"},"content":{"rendered":"

Al\u00fcminyum Azot Gaz\u0131 Giderme \u00dcnitesi \u00c7al\u0131\u015ft\u0131rma Prosed\u00fcrleri<\/strong><\/p>\n

Kullan\u0131m \u00d6ncesi Azot Gaz\u0131 Giderme Al\u00fcminyum \u00dcnitesinin Haz\u0131rlanmas\u0131<\/strong>
\n1. Kullan\u0131mdan \u00f6nce gaz giderme cihaz\u0131n\u0131n mekanik, elektrik ve hidrolik sistemlerinin normal \u00e7al\u0131\u015f\u0131p \u00e7al\u0131\u015fmad\u0131\u011f\u0131n\u0131 dikkatlice kontrol edin ve cihaz\u0131n sorunsuz \u00e7al\u0131\u015fmas\u0131n\u0131 sa\u011flamak i\u00e7in herhangi bir sorun tespit edildi\u011finde derhal m\u00fcdahale edin.
\n\u00fcretmek.
\n2. Kullan\u0131mdan \u00f6nce gaz giderme cihaz\u0131n\u0131n gaz boru hatt\u0131nda s\u0131z\u0131nt\u0131 veya t\u0131kanma olup olmad\u0131\u011f\u0131n\u0131 kontrol edin. Herhangi bir sorun varsa, gaz giderme etkisinin sa\u011flanabilmesi i\u00e7in bu sorun zaman\u0131nda giderilmelidir.
\n3. D\u00f6k\u00fcm i\u015flemine ba\u015flamadan \u00f6nce, rotor havaland\u0131rma deli\u011finin t\u0131kanmam\u0131\u015f olup olmad\u0131\u011f\u0131n\u0131, grafit rotorun normal \u015fekilde d\u00f6n\u00fcp d\u00f6nmedi\u011fini ve gaz ak\u0131\u015f\u0131n\u0131n normal olup olmad\u0131\u011f\u0131n\u0131 dikkatlice kontrol edin.
\n4. Al\u00fcminyum eriyi\u011finin akmas\u0131n\u0131 \u00f6nlemek i\u00e7in d\u00f6k\u00fcmden \u00f6nce tahliye deliklerinin t\u0131kan\u0131p t\u0131kanmad\u0131\u011f\u0131n\u0131 kontrol edin.
\n5. Her beyaz vardiyada, hava gidericinin \u00fcst kapa\u011f\u0131 a\u00e7\u0131lacak, c\u00fcruf temizlenecek ve rotor kontrol edilecektir. Rotor kafas\u0131nda 50%\u2019den fazla a\u015f\u0131nma g\u00f6r\u00fcld\u00fc\u011f\u00fcnde rotor de\u011fi\u015ftirilmelidir.
\n6. Her d\u00f6k\u00fcmden \u00f6nce, gaz giderme cihaz\u0131ndaki tozu, silikon ke\u00e7eyi ve di\u011fer kal\u0131nt\u0131lar\u0131 temizleyin; ayr\u0131ca t\u00fcm al\u00fcminyum tala\u015flar\u0131n\u0131, al\u00fcminyum kabu\u011funu, al\u00fcminyum c\u00fcrufunu vb. temizleyin.
\nEkipman\u0131 temiz tutun.<\/p>\n

Gaz Giderme Kutusu\u2019nun \u00d6n Is\u0131t\u0131lmas\u0131 (genel bak\u0131mdan veya hava kutusunun temizlenmesinden sonra)<\/strong>
\n1. Is\u0131 kayb\u0131n\u0131 veya metal s\u0131z\u0131nt\u0131s\u0131n\u0131 \u00f6nlemek i\u00e7in reakt\u00f6r\u00fcn ate\u015fe dayan\u0131kl\u0131 par\u00e7alar\u0131n\u0131n ve onar\u0131m par\u00e7alar\u0131n\u0131n a\u015f\u0131nma durumunu kontrol edin.
\n2. Silindirin giri\u015f ve \u00e7\u0131k\u0131\u015flar\u0131na ek olarak seramik elyaf pamuk t\u0131ka\u00e7lar tak\u0131lm\u0131\u015ft\u0131r.
\n3. Konsol \u0131s\u0131tma program\u0131, kabini \u00f6nceden \u0131s\u0131tmak ve \u0131s\u0131tmay\u0131 otomatik olarak kontrol etmek \u00fczere ayarlanm\u0131\u015ft\u0131r.<\/p>\n

\"Al\u00fcminyumdan<\/p>\n

Al\u00fcminyum s\u0131v\u0131 i\u015fleme i\u015flemi<\/strong>
\n1. Al\u00fcminyum s\u0131v\u0131s\u0131n\u0131n s\u0131cakl\u0131\u011f\u0131n\u0131 gereksinimlere g\u00f6re ayarlay\u0131n. D\u00f6k\u00fcm haz\u0131r oldu\u011funda, gaz giderme kutusunun s\u0131cakl\u0131k kontrol tablas\u0131 730 \u00b0C\u2019de yal\u0131t\u0131l\u0131r; ala\u015f\u0131m aktar\u0131m\u0131 veya sistem kapatma gibi herhangi bir durum s\u00f6z konusu ise
\nGaz giderme kutusunda malzeme bulunmad\u0131\u011f\u0131nda ve al\u00fcminyumla doldurulmas\u0131 gerekti\u011finde, al\u00fcminyumun doldurulabilmesi i\u00e7in kutunun i\u00e7indeki s\u0131cakl\u0131\u011f\u0131n 750 \u00b0C\u2019ye ula\u015ft\u0131\u011f\u0131ndan emin olunmal\u0131d\u0131r.
\n2. Y\u00fck, gaz giderme kutusuna girmeden \u00f6nce, gaz giderme tank\u0131n\u0131n \u00f6n olu\u011fundaki b\u00f6lme indirilerek s\u0131v\u0131 seviyesi uygun \u015fekilde y\u00fckseltilmelidir; b\u00f6ylece olu\u011fun y\u00fczeyinden erimi\u015f oksit c\u00fcrufu girebilir.
\nGaz giderme haznesi yukar\u0131 do\u011fru y\u00fczebilir; bu da temizlik a\u00e7\u0131s\u0131ndan avantajl\u0131d\u0131r.
\n3. D\u00f6k\u00fcm\u00fcn ba\u015flamas\u0131n\u0131n ard\u0131ndan, gaz giderme gaz\u0131 argon gaz\u0131na ge\u00e7ilir ve gaz giderme tank\u0131n\u0131n \u00e7al\u0131\u015fma durumu i\u015fleme durumuna ayarlan\u0131r.
\n4. Rotor arac\u0131l\u0131\u011f\u0131yla erimi\u015f metale inert gaz enjekte edin ve inert gaza klor gaz\u0131 ekleyin. Inert gaz\u0131n ak\u0131\u015f h\u0131z\u0131 4 Nm\u00b3\/saat olup, klor gaz\u0131n\u0131n ak\u0131\u015f h\u0131z\u0131
\n0,5%-2% inert gaz ak\u0131\u015f h\u0131z\u0131 i\u00e7in, gaz kontrol kabinindeki ak\u0131\u015f ve bas\u0131nc\u0131 kontrol edin. Klor gaz\u0131 bas\u0131nc\u0131 3 Bar, argon gaz\u0131 bas\u0131nc\u0131 ise 6 Bar\u2019d\u0131r.
\n5. D\u00f6k\u00fcm s\u00fcrecinde argon gaz\u0131 dengesiz hale geldi\u011finde, d\u00f6nme h\u0131z\u0131 azald\u0131\u011f\u0131nda veya belirli bir rotor normal \u015fekilde \u00e7al\u0131\u015fmad\u0131\u011f\u0131nda, bu durum \u00fcretim hatt\u0131nda \u00f6l\u00e7\u00fclen hidrojen i\u00e7eri\u011fine g\u00f6re belirlenir.
\nD\u00f6k\u00fcm i\u015flemine devam edin veya f\u0131r\u0131na geri g\u00f6nderin; iki veya \u00fc\u00e7 rotor aniden d\u00fczg\u00fcn \u00e7al\u0131\u015fmaz hale gelirse, \u00fcr\u00fcn\u00fcn kullan\u0131m amac\u0131na ba\u011fl\u0131 olarak derhal imha edilmelidir.
\nBa\u015f teknisyenin veya teknik m\u00fcd\u00fcr\u00fcn f\u0131r\u0131na geri d\u00f6nmeme karar\u0131 ald\u0131\u011f\u0131n\u0131 belirtin.<\/p>\n

AdTech Metalurji Malzemeleri Ltd. \u015eti.<\/a><\/p>\n

D\u00f6k\u00fcmler aras\u0131ndaki temizlik<\/strong>
\n\u201cAl\u00fcminyumun Azotla Gazdan Ar\u0131nd\u0131r\u0131lmas\u0131\u201d i\u015fleminde al\u00fcminyum s\u0131v\u0131s\u0131n\u0131 de\u011fi\u015ftirmeniz gerekti\u011finde, a\u015fa\u011f\u0131dakileri uygulay\u0131n:
\n1. Temizlik i\u00e7in kullan\u0131lan aletlerin kuru ve kal\u0131nt\u0131 i\u00e7ermedi\u011finden ve refrakter malzemelerle f\u0131r\u00e7aland\u0131\u011f\u0131ndan emin olun; aksi takdirde bu aletler zaman\u0131nda imha edilmelidir. Al\u00fcminyum c\u00fcruf tank\u0131n\u0131n kuru olup olmad\u0131\u011f\u0131n\u0131 kontrol edin.
\nKuru ve kal\u0131nt\u0131 i\u00e7ermeyen bir \u015fekilde, tahliye deli\u011finin al\u00fcminyum depoya s\u0131k\u0131ca ba\u011fland\u0131\u011f\u0131n\u0131 kontrol edin.
\n2. Rotor h\u0131z\u0131n\u0131 3 dakika boyunca 200 dev\/dk\u2019n\u0131n \u00fczerine \u00e7\u0131kar\u0131n, giri\u015f ve \u00e7\u0131k\u0131\u015ftaki yal\u0131t\u0131m pamu\u011funu \u00e7\u0131kar\u0131n ve bo\u015f kutunun \u00fcst kapa\u011f\u0131n\u0131 kapat\u0131n.
\n3. Kapak tamamen kald\u0131r\u0131ld\u0131ktan sonra, temizlik amac\u0131yla bom \u00fczerindeki pim s\u0131k\u0131\u015ft\u0131r\u0131lacakt\u0131r.
\n4. \u00c7elik tel veya ba\u015fka bir aletle rotor hava \u00e7\u0131k\u0131\u015f\u0131n\u0131 s\u00f6k\u00fcn; milin iyi \u00e7al\u0131\u015f\u0131r durumda oldu\u011fundan emin olun, aksi takdirde milini de\u011fi\u015ftirin.
\n5. Is\u0131t\u0131c\u0131y\u0131 ve \u00fcst kapa\u011f\u0131n taban\u0131na yap\u0131\u015fm\u0131\u015f c\u00fcrufu temizleyin, s\u00fczge\u00e7 kullanarak al\u00fcminyum s\u0131v\u0131s\u0131n\u0131n y\u00fczeyindeki k\u00f6p\u00fc\u011f\u00fc al\u0131n ve \u015fi\u015firilebilir contan\u0131n a\u015f\u0131nma durumunu ve do\u011fru \u015fekilde tak\u0131l\u0131 olup olmad\u0131\u011f\u0131n\u0131 kontrol edin.
\nTam yerinde.
\n6. Bo\u015faltma deli\u011finin yak\u0131n\u0131nda personel bulunmad\u0131\u011f\u0131ndan emin olun ve bo\u015faltma c\u0131vatalar\u0131n\u0131n sa\u011flam olup olmad\u0131\u011f\u0131n\u0131 kontrol edin.
\n7. Al\u00fcminyum s\u0131v\u0131s\u0131n\u0131n al\u00fcminyum bo\u015faltma kutusuna sorunsuz bir \u015fekilde akmas\u0131n\u0131 sa\u011flamak i\u00e7in tahliye deli\u011fi tapas\u0131n\u0131 a\u00e7\u0131n. Al\u00fcminyum bo\u015falt\u0131ld\u0131\u011f\u0131nda, uzun bir k\u00fcrek kullanarak silindir i\u00e7indeki kar\u0131\u015f\u0131m\u0131 kar\u0131\u015ft\u0131r\u0131n ve i\u015flem tamamland\u0131ktan sonra temizleyin.
\nKalan al\u00fcminyum ve c\u00fcruf; giri\u015f ile kabin aras\u0131ndaki ba\u011flant\u0131n\u0131n sa\u011flam ve al\u00fcminyumun yap\u0131\u015fmaz oldu\u011fundan emin olun.
\n8. Al\u00fcminyum s\u0131v\u0131s\u0131n\u0131 bo\u015faltt\u0131ktan sonra, duvar\u0131, taban\u0131 ve al\u00fcminyum s\u0131v\u0131s\u0131 giri\u015f ve \u00e7\u0131k\u0131\u015flar\u0131n\u0131 zaman\u0131nda temizleyin. Temizlik s\u0131ras\u0131nda genle\u015fme contas\u0131, kutunun yan duvar\u0131 ve orta k\u0131sm\u0131 zarar g\u00f6rmemelidir.
\nB\u00f6lme.
\n9. Gaz giderme kutusunun i\u00e7 duvar\u0131 ile al\u00fcminyum giri\u015f ve \u00e7\u0131k\u0131\u015f k\u0131s\u0131mlar\u0131 temizlenmelidir; al\u00fcminyum kal\u0131nt\u0131s\u0131 veya ba\u015fka herhangi bir kal\u0131nt\u0131 kalmamal\u0131d\u0131r; temizleme kutusu so\u011fuduktan sonra, ate\u015falt\u0131 \u00e7amuru ile onar\u0131lacakt\u0131r.
\n\u00c7atlaklar varsa, refrakter \u00e7amur m\u00fcmk\u00fcn oldu\u011funca d\u00fczg\u00fcn bir \u015fekilde yay\u0131lmal\u0131, ard\u0131ndan kemik tozu suyu (1:3) kullan\u0131larak silindirin i\u00e7ine e\u015fit bir tabaka halinde p\u00fcsk\u00fcrt\u00fclmelidir; silindirin i\u00e7 duvar\u0131 \u00e7ok kal\u0131nsa
\nP\u00fcr\u00fczl\u00fc, bor nitr\u00fcr \u00e7\u00f6zeltisiyle kaplanmas\u0131 gerekiyor.
\n10. Yukar\u0131daki i\u015flemleri tamamlad\u0131ktan sonra, kutunun kenarlar\u0131nda ve contada herhangi bir kal\u0131nt\u0131 kalmad\u0131\u011f\u0131ndan emin olduktan sonra, bom pimini d\u0131\u015far\u0131 \u00e7ekin ve silindirin \u00fcst kapa\u011f\u0131n\u0131 indirin.
\nBo\u015faltma deli\u011fi ile al\u00fcminyum giri\u015f ve \u00e7\u0131k\u0131\u015f par\u00e7alar\u0131 t\u0131kanm\u0131\u015f ve sa\u011flamd\u0131r.
\n11. Bak\u0131m i\u015flemi tamamland\u0131ktan sonra, \u00f6n \u0131s\u0131tma yapmak i\u00e7in \u201chazne \u00f6n \u0131s\u0131tma\u201d program\u0131n\u0131 \u00e7al\u0131\u015ft\u0131r\u0131n.
\n12. Silindirin 730 \u00b0C\u2019nin \u00fczerine \u0131s\u0131t\u0131lmas\u0131 d\u0131\u015f\u0131nda, eritme f\u0131r\u0131n\u0131ndaki s\u0131v\u0131 al\u00fcminyum, s\u0131v\u0131 al\u00fcminyumun s\u0131cakl\u0131\u011f\u0131n\u0131n 730 \u00b0C\u2019nin alt\u0131na d\u00fc\u015fmemesini sa\u011flamak amac\u0131yla silindire aktar\u0131labilir.
\nIs\u0131t\u0131c\u0131n\u0131n zarar g\u00f6rmemesi i\u00e7in s\u0131cakl\u0131k ne \u00e7ok y\u00fcksek ne de \u00e7ok d\u00fc\u015f\u00fck olmal\u0131d\u0131r.
\n13. S\u0131v\u0131 al\u00fcminyum dolduruldu\u011funda, bo\u015faltma a\u011fz\u0131n\u0131 g\u00f6zlemlemesi i\u00e7in \u00f6zel bir g\u00f6revli g\u00f6revlendirilmelidir.
\n14. Silindir korumas\u0131n\u0131 yal\u0131t\u0131m durumuna ayarlay\u0131n.
\n15. Silindirin \u00fczerine monte edilmi\u015f termokuplun \u00f6l\u00e7t\u00fc\u011f\u00fc s\u0131cakl\u0131\u011f\u0131n hatal\u0131 olmas\u0131n\u0131 ve bunun sonucunda al\u00fcminyum s\u0131v\u0131s\u0131n\u0131n s\u0131cakl\u0131\u011f\u0131n\u0131n \u00e7ok y\u00fcksek olmas\u0131na veya s\u0131cakl\u0131\u011f\u0131n \u00e7ok y\u00fcksek olmas\u0131na yol a\u00e7mas\u0131n\u0131 \u00f6nlemek i\u00e7in, silindirin giri\u015f ve \u00e7\u0131k\u0131\u015f s\u0131cakl\u0131klar\u0131n\u0131 manuel olarak \u00f6l\u00e7\u00fcn.
\nD\u00fc\u015f\u00fck kat\u0131la\u015fma.<\/p>\n

Al\u00fcminyum s\u0131v\u0131 yal\u0131t\u0131m i\u015flemi<\/strong>
\n1. D\u00f6k\u00fcm i\u015flemi tamamland\u0131ktan sonra, silindirin \u00e7al\u0131\u015fma modu \u0131s\u0131 koruma moduna ge\u00e7irilir.
\n2. Is\u0131 koruma moduna ge\u00e7ildikten sonra, rotor h\u0131z\u0131 otomatik olarak ayarlanan de\u011fere ayarlan\u0131r.
\n3. Argon gaz\u0131n\u0131 kapat\u0131n ve gaz giderme gaz\u0131n\u0131 azota ge\u00e7irin (5 serisi y\u00fcksek magnezyumlu ala\u015f\u0131m \u00fcretilirken bu ge\u00e7i\u015fi yapmay\u0131n). Klor kullan\u0131l\u0131yorsa, klorun kapat\u0131lmas\u0131 gerekir.
\nGaz, boru hatt\u0131n\u0131n havas\u0131n\u0131n al\u0131nmas\u0131.
\n4. Is\u0131t\u0131c\u0131y\u0131 d\u00fc\u015f\u00fck g\u00fcce ayarlay\u0131n; \u0131s\u0131t\u0131c\u0131 s\u0131cakl\u0131\u011f\u0131 900 \u00b0C\u2019nin alt\u0131nda olmal\u0131d\u0131r.<\/p>\n