Karkataccen bututuana yin ta ne ta hanyar mirgina ƙaramin tsarin carbon carbon ko ƙaramin sitarin ƙarfe na ƙarfe a cikin bututu mara kyau bisa ga wani kusurwar helical (wanda ake kira forming angle), sannan walda bututun kabu. Ana iya yin shi da kunkuntar tsiri Karfe yana samar da manyan bututun ƙarfe diamita. Ana bayyana ƙayyadaddun sa ta hanyar diamita na waje * kauri na bango. Bututun da aka ƙera ya kamata ya tabbatar da cewa gwajin hydraulic, ƙarfin ƙarfi na walda da aikin lanƙwasa sanyi dole ne su cika ka'idoji.

Tsarin dubawa:

Raw abu dubawa — matakin dubawa — butt walda dubawa - samuwar dubawa - ciki waldi dubawa - waje waldi - bututu dubawa - Ultrasonic dubawa - tsagi - dubawa girma - X-ray dubawa - Hydraulic gwajin - Karshe dubawa

Don ba da garantin samfuran, mun ƙirƙira cikakken tsari, hanyoyin aikin kan layi da tsare-tsaren dubawa da gwaji.

Misalai na aikace-aikacen bututun ƙarfe na karkace don fitar da najasa:

1. A aikin injiniyan aikin gona, bututun ƙarfe na karkace don bututun najasa suma suna taka rawar gani. Bututun ban ruwa, bututun rijiya mai zurfi, bututun magudanar ruwa, da dai sauransu, na taimakawa manoma wajen ceton yunƙuri.
2. A cikin aikin jigilar man fetur, ana amfani da bututun karfe mai waldadi na bututun najasa a matsayin bututun sufuri.
3. Ana amfani da bututun ƙarfe na karkace don zubar da ruwa a cikin ma'adinan kwal, masana'antar wutar lantarki, kula da najasa, kariyar wuta, man fetur, injiniyan birni, sinadarai, da samfuran manyan hanyoyi.
4. A cikin gine-ginen birane, ana amfani da bututun ƙarfe na welded don najasa bututu don samar da ruwa mai tsayi, dumama hanyar sadarwa, injiniyan famfo, sufurin gas, jigilar ruwa da aka binne, da sauransu, yana ba da gudummawa mai yawa ga ginin birni.
5. A aikin injiniya na ma'adinan kwal, bututun karfe mai waldadden bututu na bututun najasa galibi yana taka rawa ne na samar da ruwa da magudanar ruwa a karkashin kasa, feshi a karkashin kasa, iska mai kyau da mara kyau, magudanar gas, yayyafa wuta da sauran hanyoyin sadarwa na bututu.
6. A cikin wutar lantarki, karkace welded karfe bututu for najasa bututu aka yafi amfani a matsayin bututun aiwatar da sharar gida sharar gida da kuma mayar da ruwa a thermal ikon shuke-shuke.
Karfe karfe bututu don najasa fitarwa za a iya bi da anti-lalata magani bisa ga abokin ciniki bukatun, don ƙara da sabis na bututu jiki da kuma ajiye kudin na sha'anin.