Karkace bututu ne yadu amfani a cikin yanayi gas, man fetur, sinadaran masana'antu, wutar lantarki masana'antu, dumama masana'antu, samar da ruwa da kuma magudanar ruwa masana'antu, tururi dumama, hydropower matsa lamba karfe bututu, thermal makamashi, ruwa da sauran dogon-nesa watsa bututu da piling, dredging, gadoji, tsarin karfe da sauran ayyukan.

A cikin amfani da tsarin samar da bututun ƙarfe na karkace, mutane sun ƙirƙira kyawawan hanyoyin walda da samar da kayayyaki, kuma sun ba da gudummawa sosai ga ci gaba da saurin bunƙasa wannan masana'antar, amma kuma ya sa wannan masana'antar ta inganta a cikin ci gaba.Waldawar baka ta atomatik sabuwar hanyar walda ce da aka ƙirƙira a cikin 1940, kuma a gaban littafin walda shi ko kariyar slag, amma wannan saura ba shine murfin lantarki yana narkewa daga juzu'in walda ba.A cikin na'urar waya don aika waya da reel na waya, ana ci gaba da ba da wayoyi na walda, hanyar walda shine ci gaba da ciyar da waya baka wuta fusible granular flux ɗaukar hoto, ta yadda waya, tushe karfe da wani ɓangare na juyi narkewa da evaporation ta samar da wani rami, baka na barga mai konewa a cikin rami a ciki, don haka a kira shi waldi mai nutsewa ta atomatik.An binne baka a cikin wani rami a ciki.Tsarin sutura ya ƙunshi mazurari mai cike da walƙiyar walda wanda ake jigilar ta cikin bututu don waldawa a gaban bambanci na biyu shine ta amfani da na'urorin lantarki, waya, saboda waya na iya ba da ci gaba;Electrode, mu kona wani lantarki dole ne ya ba da wani electrode kai jifa, da kuma aiki don tsayawa, canza electrode kafin waldi.

Irin wannan hanyar walda idan aka kwatanta da sauran hanyoyin shine babban amfani da bututu mai karkace, fa'ida ta farko: gaba ɗaya gane sarrafa kansa;na biyu fa'ida, wanda aka submerged baka a karkashin waldi, zafi musayar da kuma aikin kariya ne in mun gwada da karfi, da waldi ingancin ne in mun gwada da high;fa'ida ta uku, saboda bakar walda ta nutse ta atomatik da aka binne a ƙarƙashin rigar, don haka tana iya amfani da ingancin walda mai girma na yanzu.