{"id":8585,"date":"2021-03-16T03:58:38","date_gmt":"2021-03-16T03:58:38","guid":{"rendered":"http:\/\/www.adtechamm.com\/?p=8585"},"modified":"2021-03-16T03:58:38","modified_gmt":"2021-03-16T03:58:38","slug":"grain-refinement-of-aluminium-alloy","status":"publish","type":"post","link":"https:\/\/www.adtechamm.com\/tr\/grain-refinement-of-aluminium-alloy\/","title":{"rendered":"Al\u00fcminyum Ala\u015f\u0131m\u0131nda Tane \u0130ncelmesi"},"content":{"rendered":"

Al\u00fcminyum Ala\u015f\u0131m\u0131n\u0131n Tanecik \u0130ncelmesi, al\u00fcminyum ala\u015f\u0131m\u0131na y\u00f6nelik tanecik ak\u0131s\u0131d\u0131r<\/strong>, kurutma i\u015fleminden sonra \u00e7e\u015fitli inorganik tuzlar\u0131n belirli bir oranda kar\u0131\u015ft\u0131r\u0131lmas\u0131yla haz\u0131rlan\u0131r. Esas olarak al\u00fcminyum eriyikindeki hidrojeni ve y\u00fczen oksitlenmi\u015f c\u00fcrufu gidermek i\u00e7in kullan\u0131l\u0131r.<\/p>\n

\u0130\u015flev: Tanecik \u0130ncelme i\u015flemi, esas olarak al\u00fcminyum eriyik i\u00e7indeki hidrojeni ve y\u00fczen oksitlenmi\u015f c\u00fcrufu gidermek amac\u0131yla kullan\u0131l\u0131r; b\u00f6ylece al\u00fcminyum eriyik daha saf hale gelir. Ayr\u0131ca bu i\u015flem, bir c\u00fcruf temizleme maddesi olarak da i\u015flev g\u00f6r\u00fcr.
\n\u00d6zellikler: Ar\u0131tma maddesindeki baz\u0131 bile\u015fenler y\u00fcksek s\u0131cakl\u0131klarda kolayca ayr\u0131\u015f\u0131r; ortaya \u00e7\u0131kan gaz, hidrojen reaksiyonuna yatk\u0131nd\u0131r ve c\u00fcruf kal\u0131nt\u0131lar\u0131na kar\u015f\u0131 g\u00fc\u00e7l\u00fc bir adsorpsiyon kuvveti g\u00f6sterir; ayr\u0131ca eriyikten h\u0131zla d\u0131\u015far\u0131 \u00e7\u0131kar. Di\u011fer bile\u015fenler de c\u00fcruf temizleme maddesi i\u015flevi g\u00f6r\u00fcr.<\/p>\n

\"Al\u00fcminyum<\/p>\n

Al\u00fcminyum Ala\u015f\u0131m\u0131nda Tane \u0130ncelmesi<\/strong> Al\u00fcminyum \u00fcr\u00fcnlerinin \u00fcretimi ve i\u015flenmesinde kullan\u0131lan bir \u00fcr\u00fcnd\u00fcr. Al\u00fcminyumu etkili bir \u015fekilde ar\u0131nd\u0131rabilir ve safl\u0131\u011f\u0131n\u0131 art\u0131rabilir. G\u00fcnl\u00fck end\u00fcstriyel al\u00fcminyum \u00fcr\u00fcnlerinin \u00fcretiminde yayg\u0131n olarak kullan\u0131lmaktad\u0131r; peki, ar\u0131tma maddeleri hakk\u0131nda ne kadar bilgi sahibisiniz? A\u015fa\u011f\u0131da, edit\u00f6r\u00fcm\u00fcz bu maddenin bile\u015fimini ve kimyasal \u00f6zelliklerini k\u0131saca tan\u0131tacakt\u0131r. Al\u00fcminyum Ala\u015f\u0131mlar\u0131nda Tane \u0130ncelmesi<\/a>, b\u00f6ylece herkes ar\u0131tma maddesini daha kapsaml\u0131 bir \u015fekilde anlayabilsin.<\/p>\n

S\u00f6zde ar\u0131tma maddesi, alkali metaller ile alkali toprak metallerinin klor\u00fcr ve flor\u00fcrlerinden olu\u015fur. Ba\u015fl\u0131ca bile\u015fenleri aras\u0131nda KCl, NaCl, NaF, CaF\u2082, Na\u2083AlF\u2086, Na\u2082SiF\u2086, vb.'dir; bunlar\u0131n aras\u0131nda klor\u00fcr tuzlar\u0131, erimi\u015f al\u00fcminyum ar\u0131tma maddeleri i\u00e7in nispeten yayg\u0131n bir bile\u015fen t\u00fcr\u00fcd\u00fcr. Bunlardan 45% NaCl + 55% KCl kar\u0131\u015f\u0131m\u0131 tuzu, kat\u0131 al\u00fcmina ile g\u00fc\u00e7l\u00fc \u0131slatma kabiliyetine sahip olmas\u0131 nedeniyle yayg\u0131n olarak kullan\u0131lmaktad\u0131r.<\/p>\n

Ayr\u0131ca, eritme s\u0131cakl\u0131\u011f\u0131nda eklenen sodyum klor\u00fcr ve potasyum klor\u00fcr miktar\u0131, eriyiklerin \u00f6zg\u00fcl a\u011f\u0131rl\u0131\u011f\u0131ndan daha d\u00fc\u015f\u00fckt\u00fcr; bu sayede bu maddeler eriyik y\u00fczeyinde iyi bir \u015fekilde yay\u0131labilir ve eriyik y\u00fczeyindeki oksit tabakas\u0131n\u0131 k\u0131r\u0131p adsorbe etmek daha kolay hale gelir. Ezdirme i\u015flemi i\u00e7in yaln\u0131zca bu iki klor\u00fcr kullan\u0131l\u0131rsa, i\u015flem h\u0131z\u0131 nispeten yava\u015f olacakt\u0131r; bu nedenle manuel kar\u0131\u015ft\u0131rma gerekir ve bu da \u00e7ok zahmetlidir.<\/p>\n

Elbette, eritme ve ar\u0131tma maddesine de flor\u00fcr tuzu eklenmesi gerekir<\/strong>, ; bu madde sadece ar\u0131tma i\u015flevi g\u00f6rmekle kalmaz, ayn\u0131 zamanda al\u00fcminyum oksidi de adsorbe edip \u00e7\u00f6zer; zira flor\u00fcr tuzu eriyikle reaksiyona girerek gaz halindeki AlF, SiF\u2084, BF\u2083 vb. bile\u015fikleri olu\u015fturur. Al\u00fcminyum oksit tabakas\u0131n\u0131 al\u00fcminyum eriyikinden ay\u0131rmak i\u00e7in mekanik bir i\u015flem kullan\u0131labilir; bu i\u015flemde oksit tabakas\u0131 s\u0131k\u0131\u015ft\u0131r\u0131larak \u00e7\u00f6z\u00fcc\u00fcye itilir.<\/p>\n

Ar\u0131tma maddesinin her bir bile\u015feni kendine \u00f6zg\u00fc bir etkiye sahiptir ve al\u00fcminyum \u00fcr\u00fcnlerinin eritme s\u00fcrecinde \u00f6nemli bir rol oynar.<\/p>\n

Al\u00fcminyum ala\u015f\u0131m\u0131 eritme i\u015fleminde kullan\u0131lan bir\u00e7ok t\u00fcrde al\u00fcminyum ala\u015f\u0131m\u0131 ak\u0131 bulunmaktad\u0131r; bunlar iki kategoriye ayr\u0131labilir: kaplama maddesi (eriyik oksidasyonunu ve yanmas\u0131n\u0131 \u00f6nlemek ve getterleme sa\u011flamak i\u00e7in kullan\u0131lan ak\u0131) ve ar\u0131tma maddesi (gaz giderme ve kal\u0131nt\u0131lar\u0131n uzakla\u015ft\u0131r\u0131lmas\u0131 i\u00e7in kullan\u0131lan ak\u0131). Farkl\u0131 al\u00fcminyum ala\u015f\u0131mlar\u0131nda kullan\u0131lan kaplama maddesi ve ar\u0131tma maddesi birbirinden farkl\u0131d\u0131r.<\/p>\n

Bununla birlikte, al\u00fcminyum ala\u015f\u0131m\u0131 eritme i\u015fleminde kullan\u0131lan al\u00fcminyum ala\u015f\u0131m\u0131n\u0131n tane inceltme i\u015flemi a\u015fa\u011f\u0131daki ko\u015fullar\u0131 kar\u015f\u0131lamal\u0131d\u0131r:<\/strong>
\n1. Erime noktas\u0131, al\u00fcminyum ala\u015f\u0131m\u0131n\u0131n erime s\u0131cakl\u0131\u011f\u0131ndan daha d\u00fc\u015f\u00fck olmal\u0131d\u0131r.
\n2. \u00d6zg\u00fcl a\u011f\u0131rl\u0131\u011f\u0131, al\u00fcminyum ala\u015f\u0131m\u0131n\u0131nkinden daha d\u00fc\u015f\u00fck olmal\u0131d\u0131r.
\n3. Al\u00fcminyum ala\u015f\u0131m\u0131 eriyik ak\u0131s\u0131, eriyik i\u00e7indeki kal\u0131nt\u0131lar\u0131 emip \u00e7\u00f6zebilir ve eriyikten gaz\u0131 giderebilir.
\n4. Metal ve f\u0131r\u0131n astar\u0131yla kimyasal olarak reaksiyona girmemelidir. Metal ile reaksiyona girerse, yaln\u0131zca metalde \u00e7\u00f6z\u00fcnmeyen inert gaz \u00fcretmelidir; ayr\u0131ca al\u00fcminyum ala\u015f\u0131m\u0131 eriticisi, erimi\u015f metalde \u00e7\u00f6z\u00fcnmemelidir.
\n5. Higroskopiklik d\u00fc\u015f\u00fck olmal\u0131 ve buharla\u015fma bas\u0131nc\u0131 d\u00fc\u015f\u00fck olmal\u0131d\u0131r.
\n6. Zararl\u0131 safs\u0131zl\u0131klar ve gazlar i\u00e7ermemeli veya \u00fcretmemelidir.
\n7. Uygun viskozite ve ak\u0131\u015fkanl\u0131\u011fa sahip olmal\u0131d\u0131r.<\/p>","protected":false},"excerpt":{"rendered":"

Grain Refinement of Aluminium Alloy is an aluminum alloy granular flux, which is prepared by mixing a variety of inorganic salts after drying treatment in a certain proportion. It is mainly used to remove hydrogen and floating oxidized slag in the aluminum liquid. 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