Kuphatikiza pa kugwiritsidwa ntchito pochotsa mafuta, kutuluka kwa botolo lamafuta kumatha kugwiritsidwanso ntchito ngati payipi yonyamulira zinthu zopangira. Kupititsa patsogolo ubwino wa mafuta osungiramo mafuta, ulalo uliwonse pakupanga ndikofunikira kwambiri, makamaka kuwongolera kutentha panthawiyi, komwe kumayenera kutsatiridwa mosamalitsa. Kukhoza kwa malamulo. Nthawi zambiri, mafuta a petroleum casing amatengera njira yozimitsira kutentha pang'ono m'malo mwa njira yozimitsa wamba, chifukwa njira yozimitsira wamba imasiya kupsinjika kotsalira mkati mwa workpiece, potero kukulitsa chiwopsezo ndikupangitsa kuti kukonzanso kotsatira kusakhale kosavuta. Kutentha kwapang'onopang'ono ndikuteteza kuphulika kwakukulu kwa thumba la mafuta kuti lisakhudze ndondomeko yotsatira. Njira yayikulu yogwiritsira ntchito ndikusankha kaye kutentha kwa kutentha kwa kutentha pang'ono, nthawi zambiri pakati pa 740-810 ° C, ndipo nthawi yotentha imakhala pafupifupi mphindi 15. Pambuyo pozizira, kuthirira kumachitika. Nthawi yotentha yotentha ndi mphindi makumi asanu, ndipo kutentha kuyenera kukhala 630 ° C. Zoonadi, mtundu uliwonse wachitsulo uli ndi kutentha kwake kwa kutentha ndi nthawi pa chithandizo cha kutentha. Malingana ngati zingathe kupititsa patsogolo ntchito ya workpiece, ndiye chithandizo cha kutentha Cholinga chimakwaniritsidwa.

Chithandizo cha kutentha ndi njira yofunika kwambiri pokonza mafuta a petroleum casing. Kaya ntchito ndi khalidwe la mankhwala omalizidwa akhoza kukwaniritsa miyezo makamaka zimadalira zotsatira za kutentha kutentha. Chifukwa chake, wopanga aliyense ali ndi zofunika kwambiri pakuwongolera kutentha ndipo musayese kunyalanyaza. Nthawi zina kuzima kwa kutentha kochepa kungagwiritsidwe ntchito kuzimitsa. Kuzimitsa kutentha pang'ono kumatha kuchotsa bwino kupsinjika kotsalira kwa thumba la mafuta. Sikuti amachepetsa kuchuluka kwa mapindikidwe a workpiece atatha kuzimitsa komanso amakonza kasupe wamafuta kukhala zinthu zopangira zoyenera kuchita pambuyo pake. Chifukwa chake, zomwe zikuchitika panopo posungira mafuta sizingasiyanitsidwe ndi chithandizo cha kutentha. Popeza njira yochizira kutentha yayambika, kaya ndi mphamvu yamphamvu, yolimbana ndi chiwonongeko, kapena kulimba kwamafuta amafuta, pakhala kusintha kwakukulu. kusintha.