Farsamaynta Farsamaynta Laga Saarayo Qodobada Metals
Metallographic etching waa farsamada kiimikada loo isticmaalo in lagu muujiyo sifooyinka birta ee heerarka dhaadheer. Iyadoo la baranayo dabeecadda , tirada, iyo qaybinta sifooyinka noocaas ah, metallurgurgists waxay saadaalin karaan oo sharxi karaan hantida jireed iyo guuldarooyinka waxqabadka ee muunada birta ah.
Sidee Ayuu Qaadayaa Dhibaatooyinka Dhuxusha?
Qalabyada maadooyinka badankoodu waa qiyaasta miisaanka; lama arki karo ama lama falanqeyn karo iyada oo aan weyneynin koritaanka ugu yaraan 50x iyo inta udhaxaysa 1000x marka la isticmaalayo microscopes fudud.
Si loo falanqeeyo sifooyinka noocan oo kale ah, waa in tijaabada biraha ah lagu daboolo muraayad aad u fiican. Nasiib darro, hoosta mareegta, dusha sare ee caleenta ah ee muuqaalkeedu wuxuu u eg yahay cad cad oo cad.
Si loo abuuro farqiga u dhexeeya qaybaha maadada birta ah, xalka kiimikada loo yaqaanno isugeyntu waa la isticmaalaa. Kala-wareegayaasha ayaa si xushmad leh u xaddidan qaar ka mid ah waxyaabahaas, kuwaas oo muujinaya gobollo madow. Tani waa suurtagal sababtoo ah kala duwanaanta ka kooban halbeegga, qaabka, ama wejiga biraha wax ka beddelaya heerka qiyaasaha koritaanka marka uu u soo baxo fiilo.
Kala-wareegayaasha waxaa loo isticmaalaa inay soo bandhigaan:
- qaabka iyo xajmiga xudduudaha hadhuudhka (cilladaha dhismaha macdanta)
- wejiyada macdanta (noocyada kala duwan ee biraha ee caarada)
- Ka-soo-baxyada (qadar yar oo ah qalabka aan biraha ahayn)
- kalsoonidarrada dhibco, gaar ahaan alaabada elektarooniga ah
- dildilaaca iyo arrimaha kale ee welds
- midabada, tayada, iyo dhumucda qalabka xayeysiiska
Noocyada Meelaynta Metallographic
Sida laga soo xigtay website-ka metalographic.com, "Etching waa nidaam lagu muujinayo qaab-dhismeedka qalabka, farsamooyinka farsamada caadiga ah waxaa ka mid ah:
- Kiimikada
- Electrolytic
- Cimilada
- Plasma
- Cusbo macaan
- Magnetic
Labada farsamooyinka ugu caamsan waa farsamooyinka kimikalka iyo korontada.
Kiimikada kiimikadu waxay caadi ahaan isku dhafan tahay asiidh ama saldhig oo leh oxidis ama hoos u dhigis wakiil oo ah qalin sida alkol. Qalabka korontada ku shaqeeyaa waa isku dhafka kiimikada oo leh koronto / tamar koronto. "
Sidee Etching loo Isticmaala si looga hortago Dhismaha Birta
Metallurgisters waa saynisyahanno ku takhasusay dhismaha iyo kiimikada birta. Marka feylku ku dhaco (tusaale ahaan, dhismuhu waa burburay), waxaa muhiim ah in la fahmo sababaha. Metallurgists waxay eegaan shay-baarka biraha si loo go'aamiyo sababaha fashilka.
Waxaa jira dhowr daraasadood oo kala duwan oo ka kooban qaybo sida ammonia, hydrogen peroxide, iyo hydrochloric acid. Xalalka kala duwan waxay faa'iido u leeyihiin in ay ka fogaadaan biraha kala duwan. Tusaale ahaan, ASTM 30, oo ka samaysan Ammonia, Hydrogen Peroxide (3%), iyo DI Water, waxaa loo isticmaalaa in lagu qalo naxaas. Keller's Etch, oo ka samaysan biyo Distiil ah, Nitric acid, Hydrochloric acid, iyo Hydrofluoric acid, waxay ugu fiican tahay in la jarjaro aluminium iyo feeraha titanium.
Iyadoo la raacayo kiimikooyin kala duwan, metallurgurgists waxay soo bandhigi karaan dhibaatooyin kala duwan oo ka iman kara shaybaarrada. Ciriiri waxay muujin kartaa dildilaasyo yaryar, dhejisyo, ama ka mid ah shaybaarka. Macluumaadka ay bixiso by etching u ogolaanaya metallurgists si ay u ogaadaan sababta uu biraha ku fashilmay.
Marka dhibaatooyin gaar ah la ogaado, waxaa suurtogal ah in laga fogaado isla arrintan mid mustaqbalka ah.