1. Ukuhlolwa kokubukeka kweukufakwa kwepayipi lendololwane: ngokuvamile, inhlolovo yeso lenyama iyindlela eyinhloko.Ngokuhlola ukubukeka, ingathola ukukhubazeka kokubukeka kokufakwa kwepayipi le-elbow, futhi kwesinye isikhathi isebenzise ingilazi yokukhulisa izikhathi ezingama-5-20 ukuze iphenye.Okufana nokuluma onqenqemeni, i-porosity, izimila zokushisela, ukuqhekeka kwendawo, ukufakwa kwe-slag nokungena, njll. Ubukhulu bomumo we-weld bungalinganiswa nomtshina wokushisela noma isampula.

2. Ukuhlolwa okungonakali kokufakwa kwamapayipi endololwane: ukuhlolwa kwe-slag, i-porosity, imifantu kanye nezinye iziphambeko ezifihliwe ku-weld.Ukuhlolwa kwe-X - ray ukusebenzisa i-X - ray ukuthatha izithombe ze-welding seam, ngokusho kombono ongemuhle ukuze kutholakale ukuthi kukhona yini ukukhubazeka kwangaphakathi, inombolo kanye nohlobo lwamaphutha.Manje okusetshenziswa kakhulu ukukhethwa kokuhlolwa kwe-X-ray, kanye nokuhlolwa kwe-ultrasonic nokuhlolwa kazibuthe.Bese ngokwezidingo zekhono lomkhiqizo ukuhlonza ukuthi i-weld ifanelekile yini.Kuleli qophelo, amagagasi abonisiwe avela esikrinini.Ngokuqhathanisa nokuhlonza la magagasi abonisiwe anamagagasi avamile, ubukhulu nendawo yesici kunganqunywa.Ukuthola amaphutha e-Ultrasonic kulula kakhulu kune-X-ray, ngakho-ke kusetshenziswa kakhulu.Kodwa-ke, ukuhlolwa kwe-ultrasonic kungahlulelwa kuphela ngesipiliyoni sokusebenza, futhi akukwazi ukushiya isisekelo sokuhlola.I-ultrasonic beam ithunyelwa isuka ku-probe iye ensimbi, futhi lapho ifinyelela esibonakalayo somoya wensimbi, iyahlehla futhi idlule endaweni yokushisela.Uma kuneziphambeko ku-weld, ugongolo lwe-ultrasonic luzoboniswa ku-probe futhi luthwalwe, ngoba ukukhubazeka kwangaphakathi kwendawo ye-weld akujulile futhi ukubukeka kwemifantu emincane kakhulu, ukutholwa kwamaphutha kazibuthe nakho kungasetshenziswa.

3. Izakhiwo zomshini zokuhlolwa kwepayipi lendololwane: ukuhlolwa okungabhubhisi kungathola iziphambeko zemvelo ze-weld, kodwa akukwazi ukucacisa izakhiwo zemishini yensimbi endaweni ethinteke ekushiseni ye-weld, ngakho ngezinye izikhathi ukwenza ukungezwani, umthelela, ukugoba kanye ezinye izivivinyo endaweni ehlanganisiwe eshiselwe.Lezi zivivinyo zenziwa ibhodi lokuhlola.Ipuleti lokuhlola elisetshenzisiwe lihlanganiswe kahle kakhulu nomthungo we-longitudinal we-cylinder ukuze kuqinisekiswe izimo zokwakha ezingaguquki.Khona-ke izakhiwo zemishini zepuleti lokuhlola ziyahlolwa.Ngokwenza kanjalo, amalunga e-welding kuphela ensimbi entsha ahlolwa kulokhu.

4. Ukuhlolwa kwengcindezi yepayipi le-elbow kanye nokuhlolwa kwengcindezi: ngezidingo zokuvala umkhumbi we-pressure, ukuhlolwa komfutho wamanzi kanye (noma) ukuhlolwa kwengcindezi, ukuhlola ukuvala nokucindezelwa kwekhono le-weld.Indlela yokujova izikhathi eziyi-1.25-1.5 zokucindezela kwamanzi noma okulingana nokucindezela kokusebenza kwegesi (ikakhulukazi ngomoya) esitsheni, uhlale isikhathi esithile, bese uphenya ukwehla kwengcindezi esitsheni, bese uphenya ukuthi kukhona ukuvuza ngaphandle, ngokusho kwalokhu kungakhomba ukuthi i-weld ifanelekile yini.