Iipayipi zoMgca ze-Api 5l zeBanga B ukuya kwi-X70 ukusuka kwi-219mm ukuya kwi-3500mm

Inkcazo emfutshane:

Le ngcaciso ibonelela ngemigangatho yokuvelisa inkqubo yemibhobho yokuhambisa amanzi, igesi kunye neoyile kwimizi-mveliso yeoyile kunye negesi yendalo.

Kukho amanqanaba amabini eenkcukacha zemveliso, i-PSL 1 kunye ne-PSL 2, i-PSL 2 ineemfuno eziyimfuneko zokulingana kwekhabhoni, ubulukhuni be-notch, amandla aphezulu okuvelisa kunye namandla okutsalwa.

Ibanga B, X42, X46, X52, X56, X60, X65, X70 kunye ne-X80.

I-Cangzhou Spiral Steel pipes group co.,ltd ibonelela ngeepayipi ze-SAWH ezigubungela umgangatho ukusuka kwi-API B ukuya kwi-X70, safumana isatifikethi se-API 5L kwiminyaka eyadlulayo kwaye ngoku iipayipi zethu zomgca zisetyenziswa kakhulu yi-CNPC, i-CPECC kwiiprojekthi zazo zepayipi.

Thumela i-imeyile kuthi

Iinkcukacha zeMveliso

Iithegi zeMveliso

Iimpawu zoomatshini zombhobho we-SSAW

inqanaba lesinyithi	amandla amancinci okuvelisa I-Mpa	ubuncinci bokuqina koxinzelelo I-Mpa	Ubuncinane bobude %
B	245	415	23
X42	290	415	23
X46	320	435	22
X52	360	460	21
X56	390	490	19
X60	415	520	18
X65	450	535	18
X70	485	570	17

Ukwakheka kweekhemikhali kwimibhobho ye-SSAW

inqanaba lesinyithi	C	Mn	P	S	V+Nb+Ti
	Ubuninzi %	Ubuninzi %	Ubuninzi %	Ubuninzi %	Ubuninzi %
B	0.26	1.2	0.03	0.03	0.15
X42	0.26	1.3	0.03	0.03	0.15
X46	0.26	1.4	0.03	0.03	0.15
X52	0.26	1.4	0.03	0.03	0.15
X56	0.26	1.4	0.03	0.03	0.15
X60	0.26	1.4	0.03	0.03	0.15
X65	0.26	1.45	0.03	0.03	0.15
X70	0.26	1.65	0.03	0.03	0.15

Ukunyamezelana kweJiyometri kwemibhobho ye-SSAW

Ukunyamezelana kwejometri
ububanzi obungaphandle		Ubukhulu bodonga		ukuthe tye		ukungaguquguquki		ubunzima	Ukuphakama okuphezulu kwe-weld bead
D		T
≤1422mm	＞1422mm	＜15mm	≥15mm	isiphelo sombhobho 1.5m	ubude obuphelele	umzimba wombhobho	isiphelo sombhobho		T≤13mm	T ＞13mm
± 0.5% ≤4mm	njengoko kuvunyelwene	± 10%	± 1.5mm	3.2mm	0.2% L	0.020D	0.015D	'+10% -3.5%	3.5mm	4.8mm

Uvavanyo lwe-Hydrostatic

inkcazo yemveliso1

Umbhobho kufuneka umelane novavanyo lwe-hydrostatic ngaphandle kokuvuza ngomthungo we-weld okanye umzimba wombhobho
Iijoyinti akufuneki zivavanywe ngamanzi, ukuba nje iinxalenye zombhobho ezisetyenzisiweyo ekuphawuleni iijoyinti zivavanywe ngempumelelo ngamanzi ngaphambi kokuba kusebenze ukujoyina.

Ukulandeleka:
Kwipayipi yePSL 1, umenzi kufuneka amisele aze alandele iinkqubo ezibhaliweyo zokugcina:
Ubume bobushushu de kube kwenziwe uvavanyo ngalunye oluhambelanayo lwe-chmical kwaye kuboniswe ukuhambelana neemfuno ezichaziweyo
Ubungqina beyunithi yovavanyo de kube kwenziwe uvavanyo ngalunye oluhambelanayo loomatshini kwaye kuboniswe ukuhambelana neemfuno ezichaziweyo
Kwipayipi yePSL 2, umenzi kufuneka amisele aze alandele iinkqubo ezibhaliweyo zokugcina ubume bobushushu kunye nobume beyunithi yovavanyo kuloo payipi. Ezi nkqubo kufuneka zibonelele ngeendlela zokulandelela nabuphi na ubude bombhobho kwiyunithi yovavanyo efanelekileyo kunye neziphumo zovavanyo lweekhemikhali ezinxulumene noko.

Ngaphambili: Iingubo ze-Epoxy eziDityanisiweyo ze-Fusion-Bonded Awwa C213 ezisemgangathweni

Okulandelayo: Iipayipi zentsimbi ezidityanisiweyo nge-Spirally Welded ASTM A252 Grade 1 2 3

Bhala umyalezo wakho apha uze uwuthumele kuthi