Rob Koltz da Dave Meyer sun tattauna halayen ferritic (magnetic) da austenitic (marasa maganadisu) na ƙarfen bakin ƙarfe da za a iya haɗa su. Getty Images
T: Ina walda tankin ƙarfe mai ƙarfe 316 mara maganadisu. Na fara walda tankunan ruwa da wayar ER316L kuma na gano cewa walda suna da maganadisu. Shin ina yin wani abu ba daidai ba?
A: Wataƙila ba ka da abin damuwa a kai. Abu ne na al'ada ga walda da aka yi da ER316L don jawo hankalin maganadisu, kuma zanen gado da aka naɗe da zanen gado 316 galibi ba sa jawo hankalin maganadisu.
Ana samun ƙarfe a matakai daban-daban dangane da yanayin zafi da matakin doping, wanda ke nufin cewa ƙwayoyin halitta a cikin ƙarfe an tsara su ta hanyoyi daban-daban. Matakai biyu da suka fi yawa sune austenite da ferrite. Austenite ba shi da maganadisu, yayin da ferrite yake da maganadisu.
A cikin ƙarfen carbon na yau da kullun, austenite wani lokaci ne da ke wanzuwa ne kawai a yanayin zafi mai yawa, kuma yayin da ƙarfen ke sanyi, austenite yana juyawa zuwa ferrite. Saboda haka, a yanayin zafi na ɗaki, ƙarfen carbon yana da maganadisu.
Wasu nau'ikan ƙarfe na bakin ƙarfe, waɗanda suka haɗa da 304 da 316, ana kiransu da austenitic bakin ƙarfe saboda babban matakinsu shine austenite a zafin ɗaki. Waɗannan ƙarfe na bakin ƙarfe suna taurare zuwa ferrite kuma suna komawa austenite lokacin da suka sanyaya. Faranti da zanen gado na bakin ƙarfe na Austenitic ana sarrafa su ta hanyar sanyaya da birgima wanda gabaɗaya ke canza dukkan ferrite zuwa austenite.
A tsakiyar karni na 20, an gano cewa lokacin da ake walda ƙarfen austenitic, kasancewar wasu ferrite a cikin ƙarfen walda yana hana ƙananan fasa (fashewa) waɗanda za su iya faruwa lokacin da ƙarfen mai cike yake da austenitic gaba ɗaya. Don hana ƙananan fasa, yawancin ƙarfen mai cike don ƙarfen austenitic suna ɗauke da tsakanin ferrite 3% zuwa 20%, don haka suna jawo maganadisu. A zahiri, na'urori masu auna firikwensin da ake amfani da su don auna yawan ferrite na walda ƙarfe na bakin ƙarfe suma suna iya auna matakin jan hankalin maganadisu.
Ana amfani da 316 a wasu aikace-aikace inda yake da mahimmanci a rage halayen maganadisu na walda, amma ba kasafai ake buƙatar wannan a cikin tankuna ba. Ina fatan za ku iya ci gaba da haɗa kayan aiki ba tare da wata matsala ba.
WELDER, wanda a da ake kira Practical Welding Today, yana wakiltar ainihin mutanen da ke yin kayayyakin da muke amfani da su da kuma waɗanda muke aiki da su kowace rana. Wannan mujallar ta shafe sama da shekaru 20 tana yi wa al'ummar walda hidima a Arewacin Amurka.
Yanzu tare da cikakken damar shiga bugu na dijital na FABRICATOR, samun damar zuwa albarkatun masana'antu masu mahimmanci cikin sauƙi.
Bugun dijital na Jaridar The Tube & Pipe yanzu ya zama cikakke, wanda ke ba da damar samun albarkatu masu mahimmanci a masana'antu cikin sauƙi.
Samu cikakken damar shiga Mujallar STAMPING ta dijital, wacce ke nuna sabbin fasahohi, mafi kyawun ayyuka da labaran masana'antu don kasuwar buga ƙarfe.
Yanzu da cikakken damar shiga cikin fasahar zamani ta Intanet, kuna da sauƙin samun albarkatun masana'antu masu mahimmanci.