I-A252 IBANGA LESI-2 Ipayipi Lensimbi Lamapayipi Egesi Angaphansi Komhlaba

Ipayipi Lensimbi le-A252 IBANGA LESI-2 Lamapayipi Egesi Angaphansi Komhlaba Isithombe Esifakiwe

Incazelo emfushane:

Uma kuziwa ekufakweni kwamapayipi egesi angaphansi komhlaba, esinye sezici ezibaluleke kakhulu ukukhethwa kwendlela yokushisela ukuxhuma amapayipi.I-Helical Submerged Arc Welding (HSAW) iwuhlelo lokushisela oludumile olusetshenziswa ukuhlanganisa ipayipi lensimbi i-A252 Grade 2 ekufakweni kwamapayipi egesi angaphansi komhlaba.Le ndlela inikeza izinzuzo eziningana, okuhlanganisa ukusebenza kahle kwe-welding ephezulu, ubuqotho obuhle kakhulu besakhiwo, nokuthembeka kwesikhathi eside.

Thumela i-imeyili kithi

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Uma kuziwa ekufakweni kwamapayipi egesi angaphansi komhlaba, esinye sezici ezibaluleke kakhulu ukukhethwa kwendlela yokushisela ukuxhuma amapayipi.I-Helical Submerged Arc Welding(HSAW) iwuhlelo lokushisela oludumile olusetshenziswa ukuhlanganisa ipayipi lensimbi i-A252 Grade 2 ekufakweni kwamapayipi egesi angaphansi komhlaba.Le ndlela inikeza izinzuzo eziningana, okuhlanganisa ukusebenza kahle kwe-welding ephezulu, ubuqotho obuhle kakhulu besakhiwo, nokuthembeka kwesikhathi eside.

Ipayipi lensimbi i-A252 yeBanga lesi-2yakhelwe ngokukhethekile ukusetshenziswa ekufakweni kwengcindezi njengokuthutha igesi yemvelo.Lawa mapayipi aziwa ngamandla awo aphakeme aqinile futhi amelana nokugqwala, okuwenza alungele ukufakwa kwamapayipi egesi angaphansi komhlaba.Kodwa-ke, inqubo yokushisela ibalulekile ekuqinisekiseni ubuqotho okuphelele nokuhlala isikhathi eside kwamapayipi egesi yemvelo.

Impahla Mechanical

	Ibanga loku-1	Ibanga lesi-2	Ibanga lesi-3
Yield Point or yield strength, min, Mpa(PSI)	205(30 000)	240(35 000)	310(45 000)
Amandla e-tensile, min, Mpa(PSI)	345(50 000)	415(60 000)	455(66 0000)

Ukuhlaziywa Komkhiqizo

Insimbi akufanele ibe ngaphezu kuka-0.050% we-phosphorus.

Ukwehluka Okuvumelekile Kwesisindo Nobukhulu

Ubude benqwaba yamapayipi ngayinye buzokalwa ngokuhlukana futhi isisindo sawo angeke sihluke ngaphezu kuka-15% ngaphezulu noma u-5% ngaphansi kwesisindo salo esicatshangelwayo, kubalwe kusetshenziswa ubude balo nesisindo salo ngobude beyunithi ngayinye.

Idayamitha yangaphandle akumele ihluke ngaphezu kuka-±1% ukusuka kububanzi obukhethekile obushiwo bangaphandle

Ukujiya kodonga kunoma iyiphi indawo akufanele kube ngaphezu kuka-12.5% ngaphansi kogqinsi olushiwo

Ubude

Ubude obungahleliwe obubodwa: 16 kuya ku-25ft(4.88 kuya ku-7.62m)

Ubude obuphindwe kabili obungahleliwe: ngaphezulu kwama-25ft kuya ku-35ft(7.62 kuya ku-10.67m)

Ubude obufanayo: ukuhluka okuvumelekile ±1in

Enye yezinzuzo eziyinhloko ze-spiral submerged arc welding ukusebenza kahle kwayo kokushisela.Le ndlela inika amandla amazinga aphezulu okubekwa, okuholela ekushiseleni ngokushesha kanye nokwanda kokukhiqiza.Ngenxa yalokho, ukufakwa kweamapayipi egesi angaphansi komhlabaingaqedwa ngendlela efike ngesikhathi, kuncishiswe ukuphazamiseka kanye nesikhathi sokuphumula.

Ukwengeza, i-HSAW inobuqotho obuhle kakhulu besakhiwo.Inqubo yokushisela idala isibopho esiqinile nesiqhubekayo phakathi kwamapayipi ensimbi e-A252 Grade 2, okuqinisekisa ukuthi amapayipi angakwazi ukumelana nezingcindezi zangaphandle kanye nezimo zemvelo ezivamile ezindaweni ezingaphansi komhlaba.Lobu buqotho besakhiwo bubalulekile ekuthuthweni kwegesi yemvelo ngokuphephile nangokuthembekile ngokuhamba amabanga amade.

Ngaphezu kokusebenza kahle kanye nobuqotho besakhiwo, i-spiral submerged arc welding inikeza ukwethembeka kwesikhathi eside.Amajoyinti ashiselwe akhiwe kusetshenziswa lobu buchwepheshe anikeza ukuqina okukhethekile nokumelana nokugqwala, okuqinisekisa ukuthi amapayipi egesi angaphansi komhlaba ahlala esesimweni esikahle ngokuhamba kwesikhathi.Lokhu kuphila isikhathi eside kubalulekile ukuze kuncishiswe izindleko zokulungisa nokulungisa ezihlobene namapayipi egesi yemvelo.

Sekukonke, ukukhethwa kwendlela yokushisela yokuhlanganisa amapayipi ensimbi e-A252 Grade 2 ekufakweni kwamapayipi egesi angaphansi komhlaba kudlala indima ebalulekile ekuphepheni kukonke kanye nokusebenza ngempumelelo kohlelo lokusabalalisa igesi.I-Spiral submerged arc welding inikeza izinzuzo ezibalulekile ekusebenzeni kahle kokushisela, ubuqotho besakhiwo kanye nokuthembeka kwesikhathi eside, okuyenza ibe ilungele ukuqinisekisa ubuqotho bamapayipi egesi angaphansi komhlaba.

Kafushane, ukubaluleka kwepayipi lensimbi le-A252 leBanga lesi-2 lensimbi elivunguza nge-arc le-arc ekufakweni kwamapayipi egesi angaphansi komhlaba ngeke kubukezwe kancane.Le ndlela yokushisela inikeza izinzuzo eziningi, okuhlanganisa ukusebenza kahle kwe-welding ephezulu, ubuqotho obuhle kakhulu besakhiwo, nokuthembeka kwesikhathi eside.Ngokukhetha ipayipi lensimbi le-HSAW elishiselwe i-A252 Grade 2, abafakeli bepayipi legesi bangaqinisekisa ukuthuthwa kwegesi yemvelo okuphephile nokuthembekile iminyaka eminingi ezayo.