Hanyar samar da bututun ƙarfe mara sumul
1. Waɗanne hanyoyi ne ake bi wajen samar da bututun ƙarfe marasa matsala?
① Shirye-shiryen babu komai ② Dumama bututu mara komai ③ Hudawa ④ Naɗe bututu ⑤ Girma da rage diamita ⑥ Kammalawa, dubawa da marufi don ajiya.
2. Menene na'urorin samarwa na bututun ƙarfe masu zafi marasa sumul?
Ci gaba da birgima, birgima a giciye
Ta yaya ake rarraba bututun ƙarfe bisa ga amfanin da suke da shi?
Bututun watsawa (GB/T 8163): bututun watsa mai da iskar gas, kayan wakilci sune ƙarfe mai lamba 20, ƙarfe mai ƙarfe na Q345, da sauransu.
Bututun gini (GB/T 8162): Abubuwan da aka wakilta sun haɗa da ƙarfen carbon, lamba 20, da kuma lamba 45 na ƙarfe; ƙarfen ƙarfe mai ƙarfe Q345, 20Cr,
40Cr, 20CrMo, 30-35CrMo, 42CrMo, da sauransu.
A halin yanzu, ana amfani da bututun ƙarfe marasa shinge galibi a matsayin bututun mai, bututun boiler, na'urorin musanya zafi, bututun bearing da wasu bututun jigilar kaya masu matsin lamba.
Waɗanne abubuwa ne ke shafar farashin bututun ƙarfe?
Hanyar sufuri, nauyin ka'ida/nauyin gaske, marufi, ranar isarwa, hanyar biyan kuɗi, farashin kasuwa, fasahar sarrafawa, ƙarancin samfura a kasuwa, tsoffin abokan ciniki/sabbin abokan ciniki, sikelin abokin ciniki, ƙwarewar sadarwa, kariyar muhalli, manufofin ƙasa, buƙatar kasuwa, Kayan aiki, alama, dubawa, inganci, cancanta, manufofin injin niƙa ƙarfe, ƙimar musanya, sharuɗɗan jigilar kaya, yanayin ƙasa da ƙasa