I-ASTM A252 GR.3 Structural LSAW(JCOE) Ipayipi Lensimbi Lekhabhoni Isithombe Esifakiwe

I-ASTM A252 GR.3 Structural LSAW(JCOE) Ipayipi Lensimbi Yekhabhoni

Incazelo emfushane:

Ibanga:GR.1,GR.2,GR.3

Usayizi: OD: 406 ~ 1500mm WT: 8 ~ 50mm

Inkokhelo: 30% Idiphozithi, 70% L/C Noma B/L Ikhophi Noma 100% L/C Lapho Ubonakala

Ikhono Lokuhlinzeka: Amathani angaphezu kuka-100000 azokhiqizwa ngonyaka

Isikhathi Sokuhola: Izinsuku Eziyi-7-14 Uma Isitokwe, Izinsuku ezingama-30-45 Zokukhiqiza

I-Surface Coating: Ivarnish Engenalutho/Emnyama/3LPE/Amagalati/Ngokwesicelo sekhasimende.

Ukuphela: I-Plain/Beveled end

Umvikeli Wokugcina: Ikepisi lepayipi lepulasitiki noma Isivikeli Sensimbi

Thumela i-imeyili kithi Whatsapp Ucingo

Imininingwane Yomkhiqizo

Imikhiqizo Ehlobene

Omaka bomkhiqizo

Incazelo yomkhiqizo weIpayipi Lensimbi LSAW:

Isitayela	Ezobuchwepheshe	Okubalulekile	Okujwayelekile	Ibanga
Ipayipi Elishiselwe I-Longitudinal Submerged-arc	SAW	Insimbi Yekhabhoni	I-API 5L PSL1&PSL2	GR.B,X42,X46,X52,X60,X65,X70 , njll
			I-ASTM A252	GR.1,GR.2, GR.3
			I-BS EN10210	S275JRH,S275J0H,S355J0H,S355J2H, njll.
			I-BS EN10219	S275JRH,S275J0H,S355J0H,S355J2H, njll.

Inqubo Yokukhiqiza yeIpayipi lensimbi le-ASTM A252 LSAW:

I-Longitudinal Submerged-arc Welded(LSAW) Ipayipi isebenzisa ubuchwepheshe bokushisela be-arc obungaphansi kwamanzi, isebenzisa i-filler welding, i-particle protection flux engcwatshwe i-arc.

I-LSAW isifinyezo sesiNgisi sepayipi lensimbi elingaphansi kwamanzi elishiselwe umthungo oqondile.Inqubo yokukhiqiza ye-arc eshiselwe ipayipi lensimbi eqondile ihlanganisa ubuchwepheshe bokwenza i-JCOE, ubuchwepheshe bokushisela be-arc obungaphansi kwamanzi kanye nobuchwepheshe bokwenza i-UOE.

Inqubo yokukhiqiza Ipayipi Longitudinal Submerged-arc Welded(LSAW) imi kanje:

Ukuhlola ipuleti le-Ultrasonic → ukugaya onqenqemeni → ukugoba ngaphambili → ukwakha → Ukushisela kwangaphambili → Ukushisela kwangaphakathi→ Ukushisela kwangaphandle → Ukuhlolwa kwe-Ultrasonic → Ukuhlolwa kwe-X-ray → Ukwandisa → ukuhlolwa kwe-hydraulic →l.I-Chamfering → Ukuhlolwa kwe-Ultrasonic → Ukuhlolwa kwe-X-ray → ukuhlolwa kwezinhlayiyana kazibuthe ekupheleni kweshubhu

Ukwakhiwa Kwekhemikhali:

Insimbi akufanele ibe ngaphezu kuka-0.050 % phosphorus.

Izidingo ze-Tensile

Izidingo ze-Tensile
	Ibanga loku-1	Ibanga lesi-2	Ibanga lesi-3
Amandla aqinile, min, psi (MPa)	50 000 (345)	60 000 (415)	66 000 (455)
Iphoyinti lesivuno noma amandla esivuno, min, psi(MPa)	30 000 (205)	35 000 (240)	45 000 (310)
Ubude obuncane obuyisisekelo bokujiya kodonga lwezibizo %6 in. (7.9 mm) noma ngaphezulu: Ubude ngamayintshi angu-8. (203.2 mm), amaminithi, % Ukwelulwa kokungu-2 in. (50.8 mm), min, %	18 30	14 25	... 20
Ngobukhulu obuncane bodonga obungaphansi kuka-%6 in. (7.9 mm), imali ebanjwayo kusukela kubude obuncane obuyisisekelo ngamayintshi angu-2 (50.08 mm) ku-Vzi ngayinye - ngo. (7.9 mm), ngamaphesenti amaphuzu	1.5A	1.25A	1.0A...

Ukuhlolwa kweMechanical kanye ne-NDT yeIpayipi lensimbi le-ASTM A252 LSAW:

Ukuhlolwa kwe-NDT(RT).

Ukuhlolwa kwe-Hydrostatic

Ukuhlolwa Komshini

Ukuhlola Ukugoba—ubude obanele bepayipi buzoma bugotshwa bubanda ngo-90° buzungeze i-cylindrical mandrel.

Ukuhlolwa kokucaba-nakuba ukuhlolwa kungadingeki, ipayipi lizokwazi ukuhlangabezana nezidingo zokuhlola eziphansi.

Ukuhlolwa kwe-Hydrostatic-ngaphandle uma kuvunyelwe, ubude bepayipi ngalinye buzohlolwa i-hydro-static ngaphandle kokuvuza odongeni lwamapayipi.

Ukuhlolwa kukagesi okungonakali-njengenye indlela yokuhlola i-hydro-static, umzimba ogcwele wepayipi ngalinye uzohlolwa ngokuhlolwa kukagesi okungangonakali.lapho kuhlolwa khona ugesi ongonakali, ubude buzomakwa ngezinhlamvu”NDE”

Ukuhlolwa kwe-ultrasonic

Ukuhlolwa kwamanje kwe-eddy

Isicelo seIpayipi lensimbi le-ASTM A252 LSAW:

Ipayipi eli-odwe ngaphansi kwalokhu kucaciswa ngelezinqwaba zamapayipi lapho isilinda sensimbi sisebenza njengelungu eliphethe umthwalo unomphela, noma njengegobolondo ukuze kwakhe izinqwaba zikakhonkolo ezisamenteni.

Inani eliphansi le-ASTM inqwaba yamapayipi ensimbi angama-252

Ukubekezelela ububanzi bangaphandle, ukushuba kodonga, ubude nesisindo:

Ngaphandle Ububanzi	Ububanzi bangaphandle bezinqwaba zamapayipi akufanele buhluke ngaphezu kuka-±1% ukusuka kububanzi obushiwo bangaphandle.
Ukujiya kodonga	Ukuqina kodonga kunoma iyiphi indawo akumele kube ngaphezu kuka-12.5% ngaphansi kogqinsi olucacisiwe lodonga.
Ubude	Izinqwaba zamapayipi zizonikezwa ngobude obungahleliwe obubodwa, ubude obuphindwe kabili obungahleliwe, noma ubude obufanayo njengoba kucacisiwe ku-oda lokuthenga, ngokuvumelana nemikhawulo elandelayo:	Ubude obubodwa obungahleliwe	16 kuya ku-25ft (4.88 kuya ku-7.62mm), intshi
		Ubude obuphindwe kabili obungahleliwe	Ngaphezulu kuka-25ft (7.62m) nobuncane besilinganiso esingu-35ft (10.67m)
		Ubude obufanayo	ubude njengoba kucacisiwe ngokuhluka okuvumelekile okungu-±1 in.
Isisindo	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.