{"id":2984,"date":"2021-01-14T11:38:34","date_gmt":"2021-01-14T08:38:34","guid":{"rendered":"https:\/\/www.sistemteknik.com\/ferrous\/?p=2984"},"modified":"2023-08-15T12:31:03","modified_gmt":"2023-08-15T09:31:03","slug":"ergitme-islemi-nedir","status":"publish","type":"post","link":"https:\/\/www.sistemteknik.com\/ferrous\/ergitme-islemi-nedir\/","title":{"rendered":"Ergitme \u0130\u015flemi Nedir?"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Metal malzemeleri ergime s\u0131cakl\u0131\u011f\u0131n\u0131n \u00fczerindeki s\u0131cakl\u0131klarda \u0131s\u0131tarak kat\u0131 halden s\u0131v\u0131 hale getirme i\u015flemine ergitme i\u015flemi denir. Ergitme s\u00fcreci a\u015famalar halinde ger\u00e7ekle\u015fir. \u00d6ncelikle malzeme se\u00e7imi yap\u0131l\u0131r, sonras\u0131nda havadan gaz kapmas\u0131 \u00f6nlenir. Ard\u0131ndan gaz giderilir, tane k\u00fc\u00e7\u00fclt\u00fcl\u00fcr ve temizleme i\u015flemi ile ergitme tamamlan\u0131r. Ala\u015f\u0131m\u0131n kirlenmesinin \u00f6n\u00fcne ge\u00e7mek i\u00e7in hurda malzemeler ve ham malzeme al\u0131nan yer taraf\u0131ndan renkli kodlar ile i\u015faretlenmelidir. Kirli ve rutubetli malzemeler \u015farj s\u0131ras\u0131nda gaz ar\u0131zalar\u0131 meydana getirebilece\u011fi gibi, fiziksel tehlikeler de meydana getirebilir.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Par\u00e7ac\u0131klardan ar\u0131tmak ve gaz kapmas\u0131n\u0131 \u00f6nlemek i\u00e7in bir \u00f6rt\u00fc alt\u0131nda ergitme i\u015flemi yap\u0131lmal\u0131d\u0131r. D\u00f6k\u00fcm s\u0131cakl\u0131\u011f\u0131na, ala\u015f\u0131m\u0131n kompozisyonuna ve oca\u011f\u0131n tipine g\u00f6re do\u011fru \u00f6rt\u00fc tercihi yap\u0131l\u0131r. \u00d6rt\u00fc alt\u0131nda ergitme, d\u00fc\u015f\u00fck s\u0131cakl\u0131klarda b\u00fcy\u00fck bir problemdir. Ergitmeyi perdeledi\u011fi i\u00e7in tuz kar\u0131\u015f\u0131mlar\u0131na ters etki yapar. Belirli tipte \u00f6rt\u00fcler, belirli d\u00f6k\u00fcm s\u0131cakl\u0131klar\u0131na ve ocak tiplerine uygun olarak \u00fcretilmi\u015flerdir. Al\u00fcminyum-magnezyum gibi belirli ala\u015f\u0131mlar de\u011fi\u015fik kompozisyonlar\u0131 sodyumun etkisine dayanamazlar. Bu sebepten dolay\u0131 uygulamada da belli tipte \u00f6zel \u00f6rt\u00fcler kullan\u0131l\u0131r. Kokil d\u00f6k\u00fcmde \u00e7ekme miktar\u0131n\u0131, az miktardaki gaz azalt\u0131r. Genelde b\u00fct\u00fcn gaz\u0131n at\u0131lmas\u0131 istenir. Gerekli ilaveler yap\u0131larak gaz miktar\u0131 kontrol alt\u0131na al\u0131n\u0131r ve istenilen seviyede tutulur. S\u0131cakl\u0131\u011f\u0131 sabit tutmak veya d\u00fc\u015f\u00fcrmek amac\u0131 ile gaz giderme i\u015flemi ger\u00e7ekle\u015ftirilir. Gaz giderme i\u015fleminin faydalar\u0131ndan bir tanesi de, y\u00fcksek silisyum ala\u015f\u0131mlar\u0131nda sodyum istenmeyen yap\u0131y\u0131 meydana getirir. Gaz giderme i\u015flemi sayesinde sodyum, ergitilmi\u015f metalden uzakla\u015ft\u0131r\u0131l\u0131r.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Ergitilmi\u015f metal i\u00e7erisinde \u00e7ok az miktarda bulunan titan ve boron gibi elementler, kat\u0131la\u015fma s\u0131ras\u0131nda kristal yap\u0131 i\u00e7in \u00e7ekirdekleri olu\u015ftururlar. Bu sayede maksimum mekanik \u00f6zellikler elde edilir ve kesit kal\u0131nl\u0131\u011f\u0131ndaki de\u011fi\u015fiklikler dengelenir. Temizleme i\u015fleminde ise, metalin \u00fczerine yeterli miktarda temizleme-\u00f6rt\u00fc tozu serpilir, be\u015f dakika bekletilir ard\u0131ndan hafif\u00e7e kar\u0131\u015ft\u0131r\u0131l\u0131r. K\u0131rm\u0131z\u0131 rengi ald\u0131ktan sonra metalin y\u00fczeyinden s\u0131yr\u0131larak al\u0131n\u0131r.\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<p>Bu yaz\u0131m\u0131z da ilginizi \u00e7ekebilir: <strong><a href=\"https:\/\/www.sistemteknik.com\/ferrous\/astm-nedir\/\">ASTM Nedir?<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Metal malzemeleri ergime s\u0131cakl\u0131\u011f\u0131n\u0131n \u00fczerindeki s\u0131cakl\u0131klarda \u0131s\u0131tarak kat\u0131 halden s\u0131v\u0131 [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":2985,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.8.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Ergitme \u0130\u015flemi Nedir? | Sistem Teknik Blog<\/title>\n<meta name=\"description\" content=\"Ergitme i\u015flemi nedir merak m\u0131 ediyorsunuz? 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