Amapayipi ensimbi ayinsimbi ayizinto ezisetshenziswa kakhulu empilweni yanamuhla, futhi ukushisela kuyindlela yokuxhumana esetshenziswa kakhulu. Izinga le-welding lihlobene ngokuqondile nokuphepha nokuzinza komkhiqizo. Ngakho yiziphi izinkinga okufanele sizinake ukuze siqinisekise ikhwalithi yemikhiqizo eshiselwe?

1. Ubukhulu bepayipi lensimbi Ekukhiqizeni nasekusetshenzisweni kwamapayipi ensimbi ashiselwe, ubukhulu bepayipi yensimbi iyipharamitha ebaluleke kakhulu. Kodwa-ke, ngenxa yezizathu zokukhiqiza nokucubungula, ubukhulu bepayipi yensimbi bungase bube nokuphambuka okuthile. Lezi zindinganiso zicacisa imingcele efana nobukhulu, ukujiya, isisindo, nokubekezelelana kwamapayipi ensimbi ashiselwe ukuqinisekisa ikhwalithi nokuphepha kwamapayipi ensimbi. Ukuphambuka kobukhulu bamapayipi ensimbi ashiselwe kungase kuthinte izinga nokuphepha kwamapayipi ensimbi. Uma ukuphambuka kokuqina kwepayipi lensimbi kukhulu kakhulu, kungabangela amandla okuthwala wepayipi yensimbi ukuncipha, ngaleyo ndlela kuthinte ukuphepha nokuzinza komkhiqizo. Ukulawula ukuchezuka kokuqina kwamapayipi ensimbi ashiselwe, izindinganiso zamazwe ngamazwe ngokuvamile zibeka izindinganiso zokuchezuka okuvumelekile kobukhulu bamapayipi ensimbi ashiselwe. Ekukhiqizeni nasekusetshenzisweni kwangempela, kuyadingeka ukulawula ngokuqinile nokuphatha ngokuvumelana nezindinganiso zokuqinisekisa ikhwalithi nokuphepha kwamapayipi ensimbi.

Silawula ngokuqinile ukushuba kwamapayipi ensimbi. Ngamapayipi ensimbi okucaciswa okufanayo, ukubekezelelana kokuqina kungu-±5%. Silawula ngokuqinile ikhwalithi yepayipi ngalinye lensimbi. Senza ukuhlola ukushuba eqoqweni ngalinye lamapayipi ensimbi ukuvimbela imikhiqizo engafanelekile ukuthi ingangeni emakethe, sivikele amalungelo nezintshisakalo zabathengi, futhi siqinisekise ukuphepha nokwethembeka kwepayipi ngalinye lensimbi.

2. Ngesikhathi senqubo yokushisela yamapayipi ensimbi, enye into ebalulekile ukwelashwa komlomo wepayipi wepayipi yensimbi. Ukuthi kufanelekile yini ukushisela kuthinta kakhulu ikhwalithi yomkhiqizo oqediwe ngemuva kokushisela. Okokuqala, kubalulekile ukugcina umlomo wepayipi ungenawo ukugqwala okuntantayo, ukungcola namafutha. Lezi mfucumfucu zithinta kakhulu ikhwalithi yokushisela, okuzokwenza ukuthi i-weld ingalingani futhi iphuke ngesikhathi sokushisela, futhi ithinte ngisho nomkhiqizo wonke wokushisela. Ukuma kwe-cross-section nakho kuyindaba ebalulekile okufanele yenziwe ngaphambi kokushisela. Uma i-cross-section itshekile kakhulu, izokwenza ukuthi ipayipi lensimbi ligobe futhi livele nge-engeli, elithinta ukusetshenziswa. Lapho ushisela, ama-burrs, nezinamathiselo ekuqhekekeni kwepayipi lensimbi kufanele futhi kuhlolwe, ngaphandle kwalokho ngeke kuhlanganiswe. Ama-burrs epayipi lensimbi azoklwebha abasebenzi futhi alimaze izingubo zabo lapho zilungiswa, okuthinta kakhulu ukuphepha.

Ngokucabangela izinkinga zokushisela zabasebenzisi, sengeze inqubo yokucutshungulwa komlomo wepayipi ukuze siqinisekise ukuthi ukusebenzelana komlomo wepayipi kubushelelezi, kuyisicaba, futhi akunaburr. Uma usebenzisa ukushisela ipayipi lensimbi, asikho isidingo sokuphinda usike umlomo wepayipi, okulungele abasebenzisi ukushisela ekusetshenzisweni kwansuku zonke. Ukuqaliswa kwalolu hlelo akukwazi nje ukunciphisa imfucumfucu yezinsalela okwakudingeka sikubone ekushiseni ngaphambili, kodwa futhi kwandise ukusebenza kahle kokukhiqiza, ukunciphisa ukuguqulwa kwe-welding, futhi kuthuthukise nakakhulu izinga lokushisela lemikhiqizo.

3. Ukushisela I-weld yepayipi yensimbi ibhekisela ekushiseleni okwenziwe yipayipi lensimbi ngesikhathi sokushisela. Ikhwalithi ye-weld yensimbi yepayipi ithinta ngokuqondile ukusebenza nokuphepha kwepayipi yensimbi. Uma kuneziphambeko ekushiseleni ipayipi lensimbi, njengama-pores, ukufakwa kwe-slag, ukuqhekeka, njll., kuzothinta amandla nokubekwa uphawu kwepayipi lensimbi, okuholela ekuvuzeni nokuphuka kwepayipi lensimbi ngesikhathi senqubo yokushisela, ngaleyo ndlela kuthinteke. izinga nokuphepha komkhiqizo.

Ukuqinisekisa ikhwalithi yokushisela, sengeze imishini yokuthola i-turbine weld kulayini wokukhiqiza ukuze sithole isimo sokushisela sepayipi ngalinye lensimbi. Uma kunenkinga yokushisela phakathi nenqubo yokukhiqiza, i-alamu izokhala ngokushesha ukuvimbela imikhiqizo eyinkinga ukuthi ifakwe kuphakheji yomkhiqizo ophelile. Senza ukuhlola okungonakali, ukuhlaziya i-metallographic, ukuhlola impahla eyimishini, njll. eqoqweni ngalinye lamapayipi ensimbi aphuma efektri ukuze siqinisekise ukuthi amakhasimende angaphansi komfula awahlangabezane nezinkinga ezifana nokusebenza okungazinzile komkhiqizo kanye nenqubekela phambili yokushisela ehamba kancane ngenxa yezinkinga zamapayipi ensimbi ngesikhathi sokucutshungulwa. imisebenzi.