Bir duuban oo kulul
Kulul-rogid leh oo leh dhejis isdaba-joog ah ama ubaxyo ubaxyo ah oo ah walxo ceeriin ah, ka dib dib-u-kuleyliyaha foornada, biyaha cadaadiska sare oo hoos u dhigaya mishiinka roughing, walxaha roughing madaxa goynta, dabada, ka dibna geli mashiinka dhamaystirka, hirgelinta kumbuyuutarka- Wareegid kontorool ah ayaa samaysay duubitaankii ugu dambeeyay ka dib markii la duuduubay qaboojinta laminarka ka dib (heerka qaboojinta kombuyuutarku maamusho) iyo galaha, mugga timaha toosan.Timaha toosan mugga madaxa, dabada ayaa inta badan liidata, waxay ahayd carrab-iyo kalluun, dhumucdiisuna, ballac, saxnaanta cidhifka inta badan waxaa jira cillado mowjad-qaabeeya, laablaaban, cilladaha Ahraamta.Dhexroor gariiradda miisaanka culus oo ah 760mm.(warshadaha tuubooyinka caadiga ah waxay door bidaan in la isticmaalo , Gariiradaha birta ah ee kulul ee fidsan, oo la jarjaray alaab kale.Ku darso mugga dhammayn kulul oo la jarjaray, la shiiday oo la saliiday gariiradaha la dubay ee kulul.

Qabow sameeyay bir
Qabow sameeyay waa sida walxo ceeriin ah, ka dib markii laga saaro oksaydhka iyadoo la qaadayo tandem qabow sameeyay duub duub adag oo dhammaatay, shaqada adkaynta sababtoo ah mugga duubka adag sababtoo ah xoogga qallafsanaanta qabow ee joogtada ah, adkaanta kor u kaca, tilmaamayaasha caaga adag ayaa hoos u dhacay, waxqabadka shaabadeynta ayaa xumaan doona , waxaana loo isticmaali karaa oo kaliya cilladaha fudud ee qaybaha.Duubka duuban ee adag waxaa loo isticmaali karaa sida alaabta ceeriin ee warshadda galvanizing kulul, khadka galvanizing-kuleelka kulul dhigay khadka annealing.Miisaanka duubista adag ee duuban guud ahaan waa 6 ilaa 13.5 tan, dhexroorka gariiradda 610mm.Warshadaha dhaxanta guud, mugga waa in uu maraa nuugista joogtada ah (CAPL unit) si loo baabi'iyo qallafsanaanta qabowga iyo walbahaarka rogaal-celinta, ama nuugista dufcaddu waxay gaarto sifooyinka farsamada ee heerka u dhigma.Tayada dusha sare ee xaashida birta ee qabow, muuqaalka, saxnaanta cabbirka oo ka sareysa xaashida kulul, iyo dhumucda alaabta dhuuban ee saxda ah ilaa 0.18mm.

Farqiga u dhexeeya kuwa kulul iyo qabow-sameeyay:
1, birta qabow sameeyay si ay u oggolaato is-goysyada is-goysyada xayndaab maxalli ah, taas oo si buuxda u isticmaali karta awoodda xajinta usha; -Qaybta birta duuban ee kulul ma oggola in isku xidhka maxalliga ahi dhaco.
2, diiqada hadhaaga ah ee birta kulul ee kulul iyo qabow-qaabeeya ee soo saaray sababo kala duwan, sidaas darteed qaybinta qaybta iskutallaabtu sidoo kale waa mid aad u kala duwan.Qaybinta walbahaarka hadhaaga ee qaybta iskutallaabta ee foorarsiga birta qabow-sameeyay, qaybinta cadaadiska hadhaaga ee birta duuban ee kulul ama qaybta iskutallaabta birta welded waa nooc filim.
3 qallafsanaanta bilaashka ah ee birta kulul ee kulul, birta qabow-qaabeeya, sifooyinka torsional ee birta kulul ee kulul ayaa ka fiican birta qabow-sameeyey.