Official Answer
Answer
Ana ƙera maɓuɓɓugan ruwan raƙuman ruwa daga waya mai lebur wadda aka samar ta hanyar birgima. Wannan tsari yana haifar da gefen zagaye na dabi'a ko gefen 'deburred'. Duk wani ƙananan fissures ko kaifi 'burrs' a gefen waya yana aiki azaman tashin hankali (K_t). A cikin aikace-aikacen cyclic, waɗannan masu tashi suna sauƙaƙe ƙaddamarwar fashewa. Don gajiya mai hawan keke ($> 10 ^ 6$ hawan keke), dole ne a bincika waya don lalata ƙasa (a cikin ƙarfe na carbon) da ingancin gefen. Gyaran maɓuɓɓugan ruwa ko girgizawa bayan murƙushewa da maganin zafi na iya haɓaka rayuwar gajiya da kashi 20-30% ta hanyar cire lahani na saman da haifar da ɗan damuwa na ɗanɗano mai ɗanɗano a waje na kayan.
