1. Ukuhlolwa kokubukeka kweukufakwa kwendololwane: ngokuvamile, ukuhlola okubukwayo kuyindlela eyinhloko. Ngokuhlola ukubukeka, kutholakala ukuthi ukukhubazeka kokubukeka kwe-weld kokufakwa kwepayipi le-elbow elishiselwe kutholwa ngengilazi yokukhulisa izikhathi ezingama-5-20 kwesinye isikhathi. Okufana ne-undercut, i-porosity, i-weld bead, i-surface crack, ukufakwa kwe-slag, ukungena kwe-welding, njll. Ubukhulu obuphelele bokushisela bungalinganiswa ngomtshina wokushisela noma ithempulethi.

2. I-NDT yokufakwa kwendololwane: hlola iziphambeko ezifana nokufakwa kwe-slag, imbobo yomoya kanye nokuqhekeka kwe-weld. Ukuhlolwa kwe-X-ray kuwukusetshenziswa kwe-X-ray ukuthatha izithombe ze-weld, ngokusho kwesithombe esibi ukuze kutholakale ukuthi kukhona yini ukukhubazeka ku-weld, inombolo kanye nohlobo lwamaphutha. Njengamanje, ukuhlolwa kwe-X-ray, ukuhlolwa kwe-ultrasonic nokuhlolwa kazibuthe kusetshenziswa kabanzi. Bese ngokwezidingo zobuchwepheshe bomkhiqizo, thola ukuthi i-weld iyafaneleka yini. Kuleli qophelo, igagasi elibonisiwe liyavela esikrinini. Ngokuqhathanisa nokukhomba la magagasi abonisiwe namagagasi avamile, ubukhulu nendawo yokukhubazeka kunganqunywa. Ukuhlolwa kwe-Ultrasonic kulula kakhulu kunokuhlola i-X-ray, ngakho-ke sekusetshenziswe kabanzi. Kodwa-ke, ukuhlolwa kwe-ultrasonic kungahlulelwa kuphela ngesipiliyoni sokusebenza futhi akukwazi ukushiya isisekelo sokuhlolwa. Lapho ugongolo lwe-ultrasonic ludluliselwa kusixhumi esibonakalayo somoya wensimbi, luzohlehla futhi ludlule endaweni yokushisela. Uma kunesici ku-weld, ugongolo lwe-ultrasonic luzobonakala ku-probe nebhere. Ukuhlola kazibuthe kungabuye kusetshenziselwe ukukhubazeka kwangaphakathi kanye nokuqhekeka okuncane kakhulu okungajulile kusuka endaweni yokushisela.

3. Ukuhlolwa kwempahla eyimishini yokufakwa kwendololwane: ukuhlola okungonakali kungathola amaphutha emvelo e-weld, kodwa akukwazi ukuchaza izici zomshini zensimbi endaweni ethinteke ekushiseni. Ngezinye izikhathi ukuhlolwa okuqinile, ukushayisana nokugoba kuyadingeka kumajoyini ashiselwe. Lezi zivivinyo zenziwa ebhodini. Ipuleti yokuhlola kufanele ihlanganiswe ne-longitudinal seam yesilinda ukuze kuqinisekiswe izimo ezifanayo zokwakha. Khona-ke izakhiwo zemishini zepuleti lokuhlola zahlolwa. Ekukhiqizeni okusebenzayo, inhlanganisela yokushisela kuphela yezinga elisha lensimbi ihlolwa kulokhu.

4. Ukuhlolwa kwe-Hydrostatic kanye nokuhlolwa kwe-pneumatic ye-elbow fittings: emikhunjini yokucindezela okudingeka ivalwe, ukuhlolwa kwe-hydrostatic kanye nokuhlolwa kwe-pneumatic kuyadingeka ukuhlola ukuvala uphawu nokucindezela amandla okuthwala ama-welds. Indlela yokujova isitsha ekucindezelweni okusebenzayo kwamanzi noma izikhathi ezingu-1.25-1.5 zokucindezela kokusebenza kwegesi (iningi lomoya) isikhathi esithile, bese uphenya ukwehla kwengcindezi esitsheni, bese uphenya ukuthi kukhona yini yinoma iyiphi into yokuvuza, ukuze kunqunywe ukuthi i-weld ifanelekile yini.