![\"D\u00f6k\u00fcm](\"http:\/\/www.adtechamm.com\/wp-content\/uploads\/2021\/03\/Sprue-Bush.jpg\")
<\/p>\nY\u00fcksek korozyon direnci, y\u00fcksek geometrik hassasiyet, p\u00fcr\u00fczs\u00fcz y\u00fczey, uzun hizmet \u00f6mr\u00fc, d\u00fc\u015f\u00fck bak\u0131m maliyeti ve erimi\u015f al\u00fcminyuma zarar vermemesi \u00f6zellikleriyle s\u0131cak \u00fcst al\u00fcminyum d\u00f6k\u00fcm i\u00e7in en iyi se\u00e7imdir. Y\u00fcksek katma de\u011ferli, ileri teknoloji performansl\u0131 al\u00fcminyum d\u00f6k\u00fcm gereksinimlerini kar\u015f\u0131layabilir.<\/p>\n
<\/p>\n
D\u00f6k\u00fcm yap\u0131m\u0131nda kullan\u0131lan demir d\u0131\u015f\u0131 ala\u015f\u0131mlar (bkz. demir d\u0131\u015f\u0131 metaller), bir t\u00fcr d\u00f6k\u00fcm ala\u015f\u0131m\u0131d\u0131r. Bunlar aras\u0131nda ba\u015fl\u0131ca d\u00f6k\u00fcm bak\u0131r ala\u015f\u0131mlar\u0131, d\u00f6k\u00fcm al\u00fcminyum ala\u015f\u0131mlar\u0131, d\u00f6k\u00fcm magnezyum ala\u015f\u0131mlar\u0131 ve d\u00f6k\u00fcm titanyum ala\u015f\u0131mlar\u0131 yer al\u0131r.
\nD\u00f6k\u00fcm bak\u0131r ala\u015f\u0131mlar\u0131, d\u00f6k\u00fcm kalay bronzu, d\u00f6k\u00fcm kur\u015fun bronzu, d\u00f6k\u00fcm al\u00fcminyum bronzu ve d\u00f6k\u00fcm pirin\u00e7 olarak s\u0131n\u0131fland\u0131r\u0131l\u0131r. \u2460 D\u00f6k\u00fcm kalay bronzu: di\u011fer ad\u0131yla bak\u0131r-kalay ala\u015f\u0131m\u0131d\u0131r. Performans\u0131 tatmin edici de\u011fildir ve kalay daha pahal\u0131d\u0131r; bu nedenle kalay\u0131n bir k\u0131sm\u0131n\u0131 ikame etmek i\u00e7in genellikle \u00e7inko, kur\u015fun ve fosfor gibi di\u011fer elementler kullan\u0131l\u0131r. Bu t\u00fcr ala\u015f\u0131m, iyi bir a\u015f\u0131nma direncine ve korozyon direncine sahiptir. Genellikle buhar ve su vanalar\u0131, yataklar, di\u015fliler ve bur\u00e7lar gibi par\u00e7alar\u0131n imalat\u0131nda kullan\u0131l\u0131r. \u2461 D\u00f6k\u00fcm kur\u015fun bronz: Bak\u0131r-kalay ala\u015f\u0131m\u0131na 10-25% kur\u015fun eklenir. Kur\u015fun, kalay bronzunda neredeyse \u00e7\u00f6z\u00fcnmez ve ala\u015f\u0131m\u0131n i\u015flenebilirli\u011fini ve a\u015f\u0131nma direncini art\u0131rmak i\u00e7in ala\u015f\u0131m i\u00e7inde saf kur\u015fun olarak da\u011f\u0131l\u0131r. Bu d\u00f6k\u00fcm ala\u015f\u0131m\u0131, iyi korozyon direnci, a\u015f\u0131nma direnci ve kesme performans\u0131na sahip par\u00e7alar veya bur\u00e7lar \u00fcretmek i\u00e7in kullan\u0131labilir. \u2462 D\u00f6k\u00fcm al\u00fcminyum bronz: Ana ala\u015f\u0131m elementi olarak al\u00fcminyum i\u00e7eren, genellikle %8,5-10,5 al\u00fcminyum i\u00e7eren bak\u0131r bazl\u0131 bir ala\u015f\u0131md\u0131r; iyi mekanik \u00f6zelliklere, korozyon direncine ve a\u015f\u0131nma direncine sahiptir. \u00c7e\u015fitli bronzlar aras\u0131nda en yayg\u0131n olarak kullan\u0131lan t\u00fcrd\u00fcr. Makine end\u00fcstrisinde bur\u00e7lar, di\u015fliler, sonsuz di\u015fliler ve elektrikli ekipmanlar gibi par\u00e7alar\u0131n imalat\u0131nda kullan\u0131l\u0131r. \u2463 D\u00f6k\u00fcm pirin\u00e7: Ana ala\u015f\u0131m eleman\u0131 olarak \u00e7inko i\u00e7eren bak\u0131r bazl\u0131 bir ala\u015f\u0131md\u0131r; mukavemeti art\u0131rmak i\u00e7in manganez, silikon, al\u00fcminyum ve di\u011fer elementler eklenir. Bunlara manganez pirin\u00e7, silikon pirin\u00e7 ve al\u00fcminyum pirin\u00e7 denir. Pirin\u00e7, \u00e7o\u011funlukla gemiler, otomobiller, trakt\u00f6rler ve aletlerdeki par\u00e7alar i\u00e7in kullan\u0131l\u0131r (bkz. bak\u0131r ala\u015f\u0131m\u0131).
\nD\u00f6k\u00fcm al\u00fcminyum ala\u015f\u0131mlar\u0131 \u00fc\u00e7 t\u00fcre ayr\u0131l\u0131r: al\u00fcminyum-silikon serisi, al\u00fcminyum-bak\u0131r serisi ve al\u00fcminyum-magnezyum serisi. \u2460 D\u00f6k\u00fcm al\u00fcminyum-silikon ala\u015f\u0131m\u0131: ana ala\u015f\u0131m eleman\u0131 olarak silikon i\u00e7eren al\u00fcminyum bazl\u0131 ala\u015f\u0131m, yani silikon al\u00fcminyum ala\u015f\u0131m\u0131. Bu t\u00fcr ala\u015f\u0131mlar, m\u00fckemmel d\u00f6k\u00fcm i\u015flenebilirli\u011fine ve hava s\u0131zd\u0131rmazl\u0131\u011f\u0131na sahiptir. Mukavemetini art\u0131rmak i\u00e7in modifiye edilebilir. Oda s\u0131cakl\u0131\u011f\u0131nda kullan\u0131ma uygundur ve karma\u015f\u0131k \u015fekillerin d\u00f6k\u00fcm\u00fcnde kullan\u0131labilir. Yayg\u0131n olarak kullan\u0131lmaktad\u0131r. \u2461 D\u00f6k\u00fcm al\u00fcminyum-bak\u0131r ala\u015f\u0131mlar\u0131: ana ala\u015f\u0131m eleman\u0131 olarak bak\u0131r i\u00e7eren al\u00fcminyum bazl\u0131 ala\u015f\u0131mlard\u0131r; genellikle %4-12% bak\u0131r i\u00e7erirler, daha y\u00fcksek termal mukavemete sahiptirler ve daha y\u00fcksek s\u0131cakl\u0131klarda \u00e7al\u0131\u015fmaya uygundurlar. Ancak, bu t\u00fcr ala\u015f\u0131mlar\u0131n d\u00f6k\u00fcm performans\u0131 ve korozyon direnci d\u00fc\u015f\u00fckt\u00fcr ve genellikle hava so\u011futmal\u0131 d\u00fc\u015f\u00fck g\u00fc\u00e7l\u00fc motor silindir kafalar\u0131, silindir pistonlar\u0131 ve di\u011fer d\u00f6k\u00fcm par\u00e7alar\u0131n imalat\u0131nda kullan\u0131l\u0131r. \u2462 D\u00f6k\u00fcm al\u00fcminyum-magnezyum ala\u015f\u0131mlar\u0131: ana ala\u015f\u0131m eleman\u0131 olarak magnezyum i\u00e7eren, genellikle %3-10 magnezyum i\u00e7eren al\u00fcminyum bazl\u0131 ala\u015f\u0131mlar, y\u00fcksek mukavemetli ve korozyona kar\u015f\u0131 y\u00fcksek diren\u00e7li ala\u015f\u0131mlard\u0131r ve iyi kesme \u00f6zelliklerine sahiptirler. Gemi in\u015fa end\u00fcstrisinde, g\u0131da ve kimya end\u00fcstrilerinde ve daha bir\u00e7ok alanda kullan\u0131l\u0131rlar. Dezavantajlar\u0131 ise zay\u0131f \u0131s\u0131 direnci ve d\u00f6k\u00fclebilirliktir.
\nD\u00f6k\u00fcm Magnezyum Ala\u015f\u0131m\u0131 Magnezyum bazl\u0131 ala\u015f\u0131m (bkz. magnezyum ala\u015f\u0131m\u0131), y\u00fcksek \u00f6zg\u00fcl mukavemet ve \u00f6zg\u00fcl sertli\u011fe, iyi darbe emilimine ve m\u00fckemmel kesme performans\u0131na sahiptir. Havac\u0131l\u0131k end\u00fcstrisi, \u00f6l\u00e7\u00fcm cihazlar\u0131, radyo teknolojisi ve ula\u015ft\u0131rma end\u00fcstrisinde kullan\u0131lan par\u00e7alar.
\nD\u00f6k\u00fcm titanyum ala\u015f\u0131m\u0131: Titanyum bazl\u0131 ala\u015f\u0131m (bkz. titanyum ala\u015f\u0131m\u0131), d\u00f6k\u00fcm al\u00fcminyum ala\u015f\u0131m\u0131na k\u0131yasla daha y\u00fcksek \u00f6zg\u00fcl mukavemete, m\u00fckemmel korozyon direncine ve \u0131s\u0131 direncine sahiptir; ancak y\u00fcksek erime noktas\u0131na, olduk\u00e7a reaktif kimyasal \u00f6zelliklere ve karma\u015f\u0131k bir \u00fcretim s\u00fcrecine sahiptir. D\u00f6k\u00fcm titanyum ala\u015f\u0131m\u0131, havac\u0131l\u0131k ve uzay end\u00fcstrisinde vazge\u00e7ilmez bir yap\u0131sal malzemedir ve ayr\u0131ca gemi yap\u0131m\u0131, kimya end\u00fcstrisi, metalurji ve t\u0131bbi uygulamalara y\u00f6nelik par\u00e7alarda da kullan\u0131l\u0131r.<\/p>\n