Na'urar fashewar fashewar nau'in abin nadi da wani abokin ciniki na Rasha ya saya don tsaftace tsatsa da fenti a saman bututun ƙarfe.
Karfe harbi ayukan iska mai ƙarfi tsaftacewa injina'ura ce mai haɗaka mai tsaftacewa wanda ke tsaftace bangon ciki da na waje na bututun ƙarfe. Ana tsabtace saman bututun ƙarfe ta hanyar fashewar harbi, kuma ana tsabtace saman ciki ta hanyar fashewar fashewar don cire duk fata mai oxide a saman. The karfe bututu harbi ayukan iska mai ƙarfi inji yafi utilizes da high-gudun harbi kwarara jefa ta wani ingantaccen da kuma iko harbi ayukan iska mai ƙarfi inji don bugi surface da ciki kogo na juyi workpiece located a cikin ɗakin, cire sauran m yashi, tsatsa Layer, waldi slag, Fatar oxide da sauran tarkace, don samun wuri mai kyau da santsi. Yana inganta mannewa tsakanin fim ɗin fenti da saman karfe, yana haɓaka ƙarfin gajiya da juriya na lalata, haɓaka ingancin ƙarfe na ciki, da tsawaita rayuwar sabis.
Hotuna masu zuwa na bututun karfe ne kafin da bayan tsaftacewa: