Ingcindezi eyinsalela yepayipi le-LSAW ibangelwa ikakhulukazi ukupholisa okungalingani.Ukucindezeleka okuyinsalela ukucindezeleka kwesigaba somuntu siqu sangaphakathi ngaphandle kwamandla angaphandle.Lokhu kucindezeleka okuyinsalela kukhona ezigabeni ezigoqiwe ezishisayo zezigaba ezihlukahlukene.Ubukhulu besigaba sensimbi yesigaba esijwayelekile, kukhulu ukucindezeleka okusalayo.
Nakuba ukucindezeleka okusalayo kuwukulinganisela, kusenomthelela othile ekusebenzeni kwamalungu ensimbi ngaphansi kwamandla angaphandle.Isibonelo, kungase kube nemiphumela emibi ekuguquleni, ukuzinza kanye nokumelana nokukhathala.Ngemuva kwe-welding, ukufakwa okungeyona insimbi kupayipi ye-LSAW kucindezelwa kumashidi amancane, okuholela ekukhanyeni.Khona-ke i-lamination yonakalisa kakhulu ukusebenza okuqinile kwepayipi le-LSAW eduze kokuqina, futhi ukudabuka kwe-interlayer kungase kwenzeke lapho i-weld incipha.Ubunzima bendawo obubangelwa ukushwabana kwe-weld kuvame ukuba izikhathi eziningana zohlobo lwe-hield point strain, enkulu kakhulu kunaleyo ebangelwa umthwalo.Ngaphezu kwalokho, ipayipi le-LSAW nakanjani lizoba nama-T-welds amaningi, ngakho-ke amathuba okuba nokukhubazeka kokushisela athuthuke kakhulu.Ngaphezu kwalokho, ukucindezeleka kwe-welding residual ku-T-weld kukhulu, futhi insimbi ye-weld ivame ukuba sesimweni sokucindezeleka kwe-three-dimensional, okwandisa amathuba okuqhekeka.
Umthungo wokushisela wepayipi elishiselwe i-arc elingaphansi kwamanzi elisontekile lisakazwa ngomugqa ozungezayo, futhi ama-welds made.Ikakhulukazi lapho i-welding ngaphansi kwezimo eziguquguqukayo, i-weld ishiya indawo yokwakha ngaphambi kokupholisa, okulula ukukhiqiza imifantu eshisayo ye-welding.Isiqondiso sokuqhekeka sihambisana ne-weld futhi sakha i-engeli ehlanganisiwe ne-eksisi yepayipi lensimbi, ngokuvamile, i-engeli iphakathi kuka-30-70 °.Le engeli imane ihambisana ne-engeli yokwehluleka kwe-shear, ngakho-ke izakhiwo zayo zokugoba, eziqinile, ezicindezelayo neziphikisana nokusonta azilungile njengepayipi le-LSAW.Ngesikhathi esifanayo, ngenxa yomkhawulo wesikhundla sokushisela, i-saddle kanye ne-fish ridge welding seam kuthinta ukubukeka.Ngakho-ke, i-NDT ye-SSAW welds yamapayipi kufanele iqiniswe ukuze kuqinisekiswe ikhwalithi yokushisela, ngaphandle kwalokho ipayipi le-SSAW akufanele lisetshenziswe ezikhathini ezibalulekile zesakhiwo sensimbi.
Isikhathi sokuthumela: Jul-13-2022