![\"Al\u00fcminyum](\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/05\/Aluminium-Sand-Casting.jpg\")
<\/p>\nAl\u00fcminyum Kum D\u00f6k\u00fcm\u00fc, kal\u0131plama malzemesi olarak d\u00f6k\u00fcm kumu ve \u00e7ekirdek kumu kullan\u0131lan ve s\u0131v\u0131 metalin yer\u00e7ekimi etkisiyle doldurularak d\u00f6k\u00fcm\u00fcn \u00fcretildi\u011fi bir d\u00f6k\u00fcm y\u00f6ntemidir. Al\u00fcminyum, demir ve \u00e7o\u011fu demirsiz ala\u015f\u0131ml\u0131 d\u00f6k\u00fcmler, kum d\u00f6k\u00fcm\u00fc y\u00f6ntemiyle elde edilebilir.<\/p>\n
Kum d\u00f6k\u00fcm\u00fcnde kullan\u0131lan kal\u0131plama malzemeleri ucuz ve temini kolay oldu\u011fundan, d\u00f6k\u00fcm kal\u0131b\u0131n\u0131n imalat\u0131 kolayd\u0131r ve tek par\u00e7a \u00fcretim, seri \u00fcretim ve toplu \u00fcretime uyum sa\u011flayabilir. Uzun s\u00fcredir, bu y\u00f6ntem d\u00f6k\u00fcm \u00fcretiminde temel s\u00fcre\u00e7 olarak kullan\u0131lmaktad\u0131r. Kum d\u00f6k\u00fcm\u00fcnde kullan\u0131lan kal\u0131p genellikle d\u0131\u015f kum kal\u0131b\u0131 ve \u00e7ekirdekten olu\u015fur.<\/p>\n
D\u00f6k\u00fcmlerin y\u00fczey kalitesini iyile\u015ftirmek amac\u0131yla, kum kal\u0131b\u0131 ve ma\u00e7a y\u00fczeyine genellikle bir boya tabakas\u0131 uygulan\u0131r. Kaplaman\u0131n ana bile\u015fenleri, y\u00fcksek ate\u015f dayan\u0131m\u0131 ve y\u00fcksek s\u0131cakl\u0131klarda iyi kimyasal kararl\u0131l\u0131\u011fa sahip toz malzemeler ve ba\u011flay\u0131c\u0131lard\u0131r. Ayr\u0131ca, kolay uygulama i\u00e7in bir ta\u015f\u0131y\u0131c\u0131 (su veya di\u011fer \u00e7\u00f6z\u00fcc\u00fcler) ve \u00e7e\u015fitli katk\u0131 maddeleri eklenir. Kum kal\u0131plar\u0131n\u0131n yap\u0131m\u0131nda kullan\u0131lan temel hammaddeler, d\u00f6k\u00fcm kumu ve kum ba\u011flay\u0131c\u0131s\u0131d\u0131r. En yayg\u0131n olarak kullan\u0131lan d\u00f6k\u00fcm kumu, silisli kumdur. Silisli kumun y\u00fcksek s\u0131cakl\u0131k performans\u0131 kullan\u0131m gereksinimlerini kar\u015f\u0131layamad\u0131\u011f\u0131 durumlarda, zirkon kumu, kromit kumu, korindon kumu vb. gibi \u00f6zel kumlar kullan\u0131l\u0131r.<\/p>\n
\u00dcretilen kum kal\u0131b\u0131 ve ma\u00e7a belirli bir mukavemete sahip olmas\u0131 i\u00e7in, ta\u015f\u0131ma, kal\u0131b\u0131n kapat\u0131lmas\u0131 ve s\u0131v\u0131 metalin d\u00f6k\u00fclmesi s\u0131ras\u0131nda deforme olmamas\u0131 veya hasar g\u00f6rmemesi gerekir. Genel olarak, gev\u015fek kum tanelerini kal\u0131p kumu haline getirmek i\u00e7in kal\u0131plama kumu ba\u011flay\u0131c\u0131s\u0131 d\u00f6k\u00fcm i\u015flemine eklenmelidir. En yayg\u0131n olarak kullan\u0131lan kal\u0131plama kumu ba\u011flay\u0131c\u0131s\u0131 kildir; bunun yan\u0131 s\u0131ra \u00e7e\u015fitli kuruyan ya\u011flar veya yar\u0131 kuruyan ya\u011flar, suda \u00e7\u00f6z\u00fcnen silikatlar veya fosfatlar ve \u00e7e\u015fitli sentetik re\u00e7ineler de kal\u0131plama kumu ba\u011flay\u0131c\u0131s\u0131 olarak kullan\u0131labilir.<\/p>\n
<\/p>\n
Kumda kullan\u0131lan ba\u011flay\u0131c\u0131 maddeye ve mukavemetin elde edilme \u015fekline g\u00f6re, kum d\u00f6k\u00fcm\u00fcnde kullan\u0131lan d\u0131\u015f kum t\u00fcr\u00fc \u00fc\u00e7 gruba ayr\u0131l\u0131r: \u0131slak kil t\u00fcr\u00fc, kuru kil t\u00fcr\u00fc ve kimyasal olarak sertle\u015ftirilmi\u015f kum t\u00fcr\u00fc.<\/p>\n
Kil ve Islak Kum Kal\u0131b\u0131<\/strong><\/p>\n Killi \u0131slak kum kal\u0131plar\u0131, kal\u0131plama kumu i\u00e7in ana ba\u011flay\u0131c\u0131 olarak kil ve uygun miktarda su kullan\u0131r. Kum kal\u0131plar\u0131 haz\u0131rland\u0131ktan sonra, kal\u0131plar \u0131slak halde do\u011frudan birle\u015ftirilir ve i\u00e7ine d\u00f6k\u00fcm yap\u0131l\u0131r. Islak d\u00f6k\u00fcm, uzun bir ge\u00e7mi\u015fe sahiptir ve yayg\u0131n olarak kullan\u0131lmaktad\u0131r. Islak kumun mukavemeti, belirli bir oranda kar\u0131\u015ft\u0131r\u0131lm\u0131\u015f kil ve sudan olu\u015fan kil bulamac\u0131na ba\u011fl\u0131d\u0131r. Kal\u0131plama kumu kar\u0131\u015ft\u0131r\u0131ld\u0131ktan sonra belirli bir mukavemete sahip olur. Kum, kum kal\u0131b\u0131 haline getirildikten sonra kal\u0131plama ve d\u00f6k\u00fcm gereksinimlerini kar\u015f\u0131layabilir. Bu nedenle, kal\u0131plama kumundaki kil ve su miktar\u0131 \u00e7ok \u00f6nemli proses fakt\u00f6rleridir.<\/p>\n Kuru Kum Kal\u0131b\u0131<\/strong><\/p>\n Bu t\u00fcr kum kal\u0131plar\u0131n\u0131n yap\u0131m\u0131nda kullan\u0131lan kuru kum kal\u0131plar\u0131n\u0131n nem i\u00e7eri\u011fi, \u0131slak kal\u0131p kumuna g\u00f6re biraz daha y\u00fcksektir. Kum kal\u0131b\u0131 haz\u0131rland\u0131ktan sonra, bo\u015flu\u011fun y\u00fczeyi refrakter boya ile kaplanmal\u0131 ve ard\u0131ndan kurutmak \u00fczere f\u0131r\u0131na konulmal\u0131d\u0131r. So\u011fuduktan sonra kal\u0131p kapat\u0131labilir ve d\u00f6k\u00fcm yap\u0131labilir. Kil kum kal\u0131b\u0131n\u0131n kurumas\u0131 uzun zaman al\u0131r ve bu da \u00e7ok fazla yak\u0131t t\u00fcketir; ayr\u0131ca kurutma i\u015flemi s\u0131ras\u0131nda kum kal\u0131b\u0131 kolayca deforme olur ve bu da d\u00f6k\u00fcm\u00fcn do\u011frulu\u011funu etkiler. Kil kuru kum tipi genellikle d\u00f6kme \u00e7elik par\u00e7alar\u0131n ve daha b\u00fcy\u00fck d\u00f6kme demir par\u00e7alar\u0131n imalat\u0131nda kullan\u0131l\u0131r. Kimyasal olarak sertle\u015ftirilmi\u015f kumun yayg\u0131n olarak benimsenmesi nedeniyle, kuru kum kal\u0131plar kullan\u0131mdan kald\u0131r\u0131lma e\u011filimindedir.<\/p>\n Kimyasal Olarak Sertle\u015ftirilmi\u015f Kum Kal\u0131b\u0131<\/strong><\/p>\n Bu kum kal\u0131b\u0131nda kullan\u0131lan kimyasal olarak sertle\u015ftirilmi\u015f kum kal\u0131b\u0131na \u201ckimyasal olarak sertle\u015ftirilmi\u015f kum\u201d denir. Ba\u011flay\u0131c\u0131 madde genellikle, bir sertle\u015ftiricinin etkisiyle molek\u00fcler polimerizasyona u\u011frayarak \u00fc\u00e7 boyutlu bir yap\u0131ya d\u00f6n\u00fc\u015febilen bir maddedir. Yayg\u0131n olarak kullan\u0131lanlar aras\u0131nda \u00e7e\u015fitli sentetik re\u00e7ineler ve su cam\u0131 bulunur. Temel olarak \u00fc\u00e7 kimyasal sertle\u015ftirme y\u00f6ntemi vard\u0131r: kendili\u011finden sertle\u015fme, aerosol sertle\u015ftirme ve \u0131s\u0131tma yoluyla sertle\u015ftirme.<\/p>\n AdTech\u2019in sundu\u011fu hizmetler s\u0131zd\u0131rmazl\u0131k malzemeleri,<\/a> yama malzemeleri<\/a> Al\u00fcminyum d\u00f6k\u00fcm konusunda, \u00fcr\u00fcnlerimizle ilgileniyorsan\u0131z, l\u00fctfen \u00e7ekinmeden bize ula\u015f\u0131n<\/a>.<\/p>","protected":false},"excerpt":{"rendered":" Aluminium Sand Casting is a casting method in which casting sand and core sand are used as molding materials, and liquid metal is filled under…<\/p>","protected":false},"author":1,"featured_media":1852,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[139],"class_list":["post-1817","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-aluminium-sand-casting"],"yoast_head":"\n