Chitoliro chozungulira chimagwiritsidwa ntchito kwambiri mu gasi, mafuta, mafakitale amafuta, mafakitale amagetsi, mafakitale otenthetsera, madzi ndi ngalande zamadzi, Kutentha kwa nthunzi, chitoliro chachitsulo cha hydropower, mphamvu yamatenthedwe, madzi ndi mapaipi ena otalikirana otumizirana mtunda wautali, dredging, milatho, steelstructure ndi ntchito zina.

Mu ntchito ndi kupanga ndondomeko ozungulira zitsulo chitoliro, anthu anatulukira zambiri zabwino kuwotcherera ndi kupanga njira, ndipo anathandiza kwambiri kuti azikhazikika ndi mofulumira chitukuko cha makampani, komanso kumapangitsa makampani kukhathamiritsa mu chitukuko.Makinawa kumizidwa arc kuwotcherera ndi njira yatsopano kuwotcherera anatulukira mu 1940, ndi kutsogolo kwa kuwotcherera Buku kapena chitetezo slag, koma zotsalira izi si elekitirodi ❖ kuyanika ndi kusungunuka kuchokera kuwotcherera flux .Mu waya chipangizo kutumiza waya ndi waya chowongolerera, mosalekeza anapereka kuwotcherera mawaya, kuwotcherera njira ndi mosalekeza kudyetsa waya Arc poyatsira fusible granular flux Kuphunzira, kuti waya, m'munsi zitsulo ndi mbali ya flux kusungunuka ndi evaporation kupanga patsekeke; arc ya kuyaka kokhazikika mkati mwabowo, chifukwa chake mutchule kuti automatic submerged arc kuwotcherera.Arc imakwiriridwa mu dzenje mkati.Odula dongosolo tichipeza ndi fanjelo wodzazidwa ndi kuwotcherera flux ananyamula kudzera chitoliro kuti welded kutsogolo kwa kusiyana yachiwiri ndi kuti ntchito maelekitirodi, waya, chifukwa waya angapereke mosalekeza;elekitirodi, ife kuwotcha elekitirodi ayenera kupereka ndi electrode mutu kuponyera, ndi ntchito kusiya, kusintha elekitirodi pamaso kuwotcherera.

Chotero kuwotcherera njira poyerekeza ndi njira zina ndi mwayi waukulu wa mipope ozungulira, mwayi woyamba: kwathunthu kuzindikira zochita zokha;ubwino chachiwiri, amene kumizidwa arc pansi kuwotcherera, kuwotcherera kutentha ndi chitetezo ntchito ndi wamphamvu, kuwotcherera khalidwe ndi mkulu;Ubwino wachitatu, chifukwa basi mivi arc kuwotcherera arc kukwiriridwa pansi malaya, choncho angagwiritse ntchito mkulu-pano kuwotcherera dzuwa mkulu.