A cikin tsarin samarwa na asm a179bututun ƙarfe mara nauyi mai sanyi, akwai yanayin tauraruwar sanyi da haɓakar haɓakar hydrogen, waɗanda ke haifar da sanyin bututun da ba shi da ƙarfi ya fashe babban dalilin.

Analysis na sabon abu na fashe astm A179 sanyi zana sumul bututu ne karami diamita na sumul karfe bututu ta hanyar da zane mutu ga sanyi forming sanyi kafa, da tsari hanya ne kullum annealing, pickling, zane.Ƙananan bututun ƙarfe mara diamita mai sanyi mai sanyi a cikin tsarin zane, wani lokaci daga farkon zuwa ƙarshe kamar abin da ya faru na fashewar bamboo, muna kiran wannan lamarin yana tsagewa.

Dalilan tsagewar sune:

Tasirin taurin aiki, bututun ƙarfe yana samar da babban adadin nakasar filastik yayin zane mai sanyi, yana haifar da ɓarna mai mahimmanci, wanda ke ƙara ƙarfin lattice kuma yana ƙara ƙarfin ciki na ƙarfe, yana haifar da rashin daidaituwa na ciki na ƙarfe da ragowar damuwa. .Wannan zai ƙara ƙarfin ƙarfe, ƙarfin ya ragu.Mafi girman taurin ƙarfe, mafi girman ragowar damuwa na ciki yayin zanen sanyi, mafi ƙaranci aikin tauraruwar sabon abu.Lokacin da ragowar damuwa ya kai wani ƙima, ƙarfe zai tsage tare da wani nau'in ƙirar hatsi, samuwar bututun ƙarfe mai laushi.

Tasirin haɓakar hydrogen, a cikin aiwatar da raguwa da acid, sulfuric acid da baƙin ƙarfe suna amsawa don haɓaka hydrogen.Hydrogen yana shiga cikin karfe a cikin nau'in atom ko ions don samar da ingantaccen bayani.Tasirin hydrogen akan kaddarorin injina na karfe shine kwatankwacin haɓakar hydrogen.