{"id":11947,"date":"2021-12-22T06:53:18","date_gmt":"2021-12-22T06:53:18","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=11947"},"modified":"2021-12-22T06:53:18","modified_gmt":"2021-12-22T06:53:18","slug":"launder-for-casting-molten-aluminum","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/tr\/launder-for-casting-molten-aluminum\/","title":{"rendered":"Erimi\u015f Al\u00fcminyum D\u00f6k\u00fcm\u00fc i\u00e7in Y\u0131kama"},"content":{"rendered":"

Erimi\u015f al\u00fcminyum d\u00f6k\u00fcm\u00fc i\u00e7in kullan\u0131lan d\u00f6k\u00fcm kanal\u0131, U \u015feklinde bir a\u00e7\u0131kl\u0131\u011fa sahiptir ve yukar\u0131 do\u011fru geni\u015fler; erimi\u015f metal, bu d\u00f6k\u00fcm kanal\u0131 yap\u0131s\u0131 i\u00e7inde akar. Erimi\u015f metal ile temas eden d\u00f6k\u00fcm kanal\u0131n\u0131n i\u00e7 y\u00fczeyi, seramik a\u015f\u0131nmaya dayan\u0131kl\u0131 bile\u015fim gibi bir refrakter malzeme ile kaplanm\u0131\u015ft\u0131r.<\/p>\n

Ate\u015falt\u0131 malzeme, erimi\u015f metal i\u00e7in bir ak\u0131\u015f kanal\u0131 olu\u015fturur; bu kanal, tercihen dairesel tabanl\u0131 ve yukar\u0131 do\u011fru geni\u015fleyen bir oluktur. Ak\u0131\u015f kanal\u0131n\u0131n boyutu, normal \u00e7al\u0131\u015fma ko\u015fullar\u0131 alt\u0131nda akan erimi\u015f metalin \u00fcst y\u00fczeyinin, ak\u0131\u015f kanal\u0131n\u0131n toplam y\u00fcksekli\u011finin 10% ila 20%'si kadar bir y\u00fcksekli\u011fe ula\u015faca\u011f\u0131 \u015fekilde belirlenir. Kanal\u0131n g\u00f6vdesi \u00e7elik gibi metalden yap\u0131lm\u0131\u015ft\u0131r. Seramik astarlar \u00fcretilirken, kurulum yerine kolayca ta\u015f\u0131nabilmesi i\u00e7in \u00e7elik kabuk kal\u0131p olarak kullan\u0131l\u0131r.<\/p>\n

Erimi\u015f al\u00fcminyum d\u00f6k\u00fcm\u00fc i\u00e7in kullan\u0131lan oluk, olu\u011fun taban\u0131n\u0131n d\u0131\u015f y\u00fczeyini olu\u015fturan metal bir kabuk, erimi\u015f metal i\u00e7in bir ak\u0131\u015f kanal\u0131 olu\u015fturan refrakter bir astar ve bunlar\u0131n aras\u0131na yerle\u015ftirilmi\u015f bir yal\u0131t\u0131m tabakas\u0131ndan olu\u015fur.<\/strong> Ate\u015f dayan\u0131kl\u0131 astar ve metal g\u00f6vde; \u0131s\u0131 yal\u0131t\u0131m tabakas\u0131n\u0131n \u0131s\u0131 yal\u0131t\u0131m performans\u0131, ate\u015f dayan\u0131kl\u0131 astar\u0131n performans\u0131ndan \u00e7ok daha iyidir.<\/p>\n

\u015eunun refrakter astar\u0131: al\u00fcminyum d\u00f6k\u00fcm kanal\u0131<\/a> Yal\u0131t\u0131m ve \u00e7elik k\u0131l\u0131f\u0131n yerinde kalmas\u0131n\u0131 sa\u011flamak \u00fczere, bir b\u00fct\u00fcn\u00fcn par\u00e7as\u0131 olarak s\u00f6k\u00fcl\u00fcp de\u011fi\u015ftirilebilen ayr\u0131 bir elemand\u0131r. Bu durumda, seramik y\u00fcn kompoziti \u00e7elik man\u015fondan ay\u0131r\u0131r ve kompozit kolayca de\u011fi\u015ftirilebilir. Kompozit, vidalarla \u00e7elik g\u00f6vdeye sabitlenir. Sabitleme vidas\u0131, \u00e7elik g\u00f6vde ve yal\u0131t\u0131m malzemesinin i\u00e7inden ge\u00e7erek kompozit i\u00e7ine d\u00f6k\u00fclm\u00fc\u015f somuna vidalan\u0131r.<\/p>\n

\"Erimi\u015f<\/p>\n

Refrakter kaplama ile oluk ve kanal\u0131n d\u0131\u015f kabu\u011fu aras\u0131nda bulunan \u0131s\u0131 yal\u0131t\u0131m tabakas\u0131n\u0131n kal\u0131nl\u0131\u011f\u0131 ve \u0131s\u0131 yal\u0131t\u0131m kapasitesi, refrakter kaplama i\u00e7in istenen s\u0131cakl\u0131k gradyan\u0131n\u0131 sa\u011flayacak \u015fekilde uygun bir \u015fekilde se\u00e7ilir. Tercih edilen yal\u0131t\u0131m malzemesi \u015fudur: seramik y\u00fcn\u00fc yal\u0131t\u0131m malzemesi<\/a>. Yal\u0131t\u0131m tabakas\u0131n\u0131n \u00f6nemi hayati \u00f6nem ta\u015f\u0131r; zira bu tabaka olmadan \u0131s\u0131 kayb\u0131 \u00e7ok fazla olur ve direnci \u0131s\u0131tmak i\u00e7in gereken g\u00fc\u00e7, direncin kendisini eritir. \u00d6te yandan, yal\u0131t\u0131m \u00e7ok iyi olursa, erimi\u015f metal seramik refrakter bile\u015fi\u011fin i\u00e7ine n\u00fcfuz eder ve bu da kanaldan s\u0131z\u0131nt\u0131ya yol a\u00e7ar.<\/p>\n

Refrakter oluk kapa\u011f\u0131, olu\u011fun \u00fcst k\u0131sm\u0131na yerle\u015ftirilmi\u015ftir; b\u00f6ylece kapak ile oluk aras\u0131ndaki bo\u015fluktan d\u0131\u015far\u0131ya b\u00fcy\u00fck miktarda gaz s\u0131zmas\u0131 engellenir ve \u0131s\u0131 kayb\u0131, \u0131s\u0131 yay\u0131l\u0131m\u0131 veya gaz yoluyla ger\u00e7ekle\u015fmez. Birbirine temas eden kapak ve oluk y\u00fczeyleri b\u00fcy\u00fck \u00f6l\u00e7\u00fcde d\u00fczd\u00fcr; bu sayede oluk, kapak uzun kenarlar\u0131n\u0131 neredeyse t\u00fcm uzunlu\u011fu boyunca s\u00fcrekli olarak destekler.<\/p>\n

Lavabo yap\u0131s\u0131n\u0131n kapa\u011f\u0131, metal bir kapak, bir diren\u00e7 (lavabonun alt k\u0131sm\u0131n\u0131 \u0131s\u0131tmak i\u00e7in kullan\u0131l\u0131r) ve metal g\u00f6vde \u00fczerinden yay\u0131lan \u0131s\u0131 kayb\u0131n\u0131 \u00f6nlemek i\u00e7in bir yal\u0131t\u0131m tabakas\u0131ndan olu\u015fur.<\/strong> Is\u0131tma direnci, olu\u011fun ak\u0131\u015f kanal\u0131n\u0131n \u00fczerinde yer almaktad\u0131r; b\u00f6ylece diren\u00e7ten yay\u0131lan \u0131s\u0131, olu\u011fun taban\u0131nda akan metal ve refrakter kaplamaya iletilir.<\/p>\n