Bakin karfe abu ne da ake amfani da shi sosai a rayuwar yau da kullun da samar da masana'antu, kuma ana fifita shi don kyakkyawan juriya da ƙarfi. Daga cikin nau'ikan bakin karfe da yawa, 430 da 439 iri biyu ne na gama gari, amma akwai wasu bambance-bambance masu mahimmanci a tsakaninsu.
Daga mahangar sinadarai
430 bakin karfe alloy ne mai dauke da 16-18% chromium kuma babu nickel. Wannan yana ba shi kyakkyawan juriya na lalata a wasu mahalli, musamman a cikin kafofin watsa labarai masu iskar oxygen. 439 bakin karfe alloy ne mai dauke da 17-19% chromium da 2-3% nickel. Bugu da kari na nickel ba kawai inganta lalata juriya na abu, amma kuma kara habaka ta tauri da kuma aiwatar.
Dangane da kaddarorin jiki
430 bakin karfe shine bakin karfe na martensitic tare da babban tauri da ƙarfi, amma in mun gwada da ƙarancin ductility da tauri. Wannan ya sa ya fi dacewa da wasu aikace-aikace inda ake buƙatar ƙarfin ƙarfi. 439 bakin karfe wani nau'i ne na bakin karfe na austenitic, tare da mai kyau ductility da taurin, zai iya tsayayya da babban nakasawa kuma ba sauki karya ba.
Bugu da ƙari, akwai bambance-bambance tsakanin su biyu a fagen aikace-aikacen. Saboda juriya na lalata da babban ƙarfin 430 bakin karfe, ana amfani da shi sau da yawa wajen kera na'urorin shaye-shaye na kera motoci, injin wanki, kayan dafa abinci da sauran abubuwan da ke buƙatar jure yanayin zafi mai girma da yanayin lalata. 439 bakin karfe ana amfani dashi sosai a cikin petrochemical, kayan aikin likitanci, sarrafa abinci da sauran filayen saboda kyawawan kayan sarrafa sa da juriya na lalata.
A taƙaice, 430 da 439 bakin karfe suna da wasu bambance-bambance a cikin abubuwan sinadaran, kaddarorin jiki da filayen aikace-aikace. Fahimtar waɗannan bambance-bambancen yana taimaka mana mu zaɓi mafi kyawun zaɓi da amfani da kayan ƙarfe don saduwa da buƙatun yanayi da aikace-aikace daban-daban.
Lokacin aikawa: Fabrairu-27-2024