ASTM A252 GR.3 Qaab dhismeedka LSAW(JCOE) Dhuumaha Birta Kaarboon Sawirka

ASTM A252 GR.3 Dhismaha LSAW(JCOE) Dhuumaha Birta Kaarboon

Sharaxaad Gaaban:

Fasalka: GR.1, GR.2, GR.3

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

Lacag-bixinta: 30% Debaajiga, 70% L/C ama nuqul B/L ah ama 100% L/C Marka la eego

Awoodda Wax-soo-saarka: In ka badan 100000 tan oo la soo saarayo sannadkii

Wakhtiga Hogaaminta: 7-14 Maalmood Haddi Kaydka Yahay, 30-45 Maalmood La Soo Saaro

Dahaarka dusha sare: Bare/Black Varnish/3LPE/Galvanized/Marka loo eego codsiga macmiilka.

Dhammaad: Dhammaad cad/Beveled

Ilaaliyaha dhamaadka: Koofida tuubada caaga ah ama difaaca birta

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Faahfaahinta Alaabta

Alaabooyinka La Xiriira

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Sharaxaada badeecadaDhuumaha Birta LSAW:

Qaabka	Farsamo	Qalab	Heerka	Darajo
Tuubbada alxanka leh ee dhexda dheer	SAW	Birta Kaarboonka	API 5L PSL1&PSL2	GR.B,X42,X46,X52,X60,X65,X70,iwm
			ASTM A252	GR.1,GR.2, GR.3
			TS EN10210	S275JRH,S275J0H,S355J0H,S355J2H,iwm
			TS EN10219	S275JRH,S275J0H,S355J0H,S355J2H,iwm

Habka wax-soo-saarka eeASTM A252 LSAW Dhuumaha Birta:

Dhererka Submerged-Arc Welded(LSAW) Tuubbadu waxay qabataa tignoolajiyada alxanka arc quuska ah, iyadoo la adeegsanayo alxanka buuxinta, qulqulka ilaalinta walxaha qaaska ah ee duugan.

LSAW waa soo gaabinta Ingiriisida ee dhuumo bir ah oo tol ah oo toosan.Habka wax soo saarka ee tuubada birta tolsan ee toosan ee arc waxaa ka mid ah tignoolajiyada samaynta JCOE, gariiradda samaynta tignoolajiyada alxanka quuska iyo farsamada samaynta UOE.

Habka soo saarida Dhuumaha Dhererka Submerged-Arc Welded(LSAW) waa sida soo socota:

Baadhitaanka saxanka Ultrasonic → shiidista cidhifka → hore u laabashada → samaynta → alxanka ka hor → alxanka gudaha → alxanka dibadda → Kormeerka Ultrasonic → Kormeerka raajada → Kordhinta → tijaabada hydraulic →l.Chamfering → Kormeerka Ultrasonic → Baaritaanka raajada → Baaritaanka walxaha magnetic ee dhamaadka tuubada

Halabuurka Kiimikada:

Birtu waa inay ka koobnaato wax ka badan 0.050% fosfooraska.

Shuruudaha Xoojinta

Shuruudaha Xoojinta
	Fasalka 1	Fasalka 2	Fasalka 3
Xoog xajin, min, psi (MPa)	50 000 (345)	60 000 (415)	66 000 (455)
Dhibic wax-soo-saar ama xoog wax-soo-saar, min, psi(MPa)	30 000 (205)	35 000 (240)	45 000 (310)
Kordhinta ugu yar ee aasaasiga ah ee dhumucda derbiga magaca ah %6	18 30	14 25	... 20
Dhumucdiisuna waxay ka yar tahay %6 inch (7.9 mm), boqolkiiba dhibcaha	1.5A	1.25A	1.0A...

Tijaabooyinka makaanikada iyo NDT eeASTM A252 LSAW Dhuumaha Birta:

Tijaabada NDT(RT)

Baaritaanka Hydrostatic

Tijaabada Makaanikada

Tijaabada laabta-Dherer ku filan oo tuubo ah waa in ay istaagtaa iyadoo qabow ilaa 90° oo ku wareegsan meeraha cylindrical.

Tijaabada fidsan-inkasta oo aan tijaabada loo baahnayn, tuubooyinku waa inay awoodaan inay buuxiyaan shuruudaha tijaabada.

Baaritaanka Hydro-static-marka laga reebo sida loo ogol yahay, dherer kasta oo tuubo ah waa in lagu sameeyaa tijaabada hydrostatic iyada oo aan la daadin darbiga tuubada.

Tijaabada koronto ee aan burbursanayn-Beddelka tijaabada hydro-static , jirka buuxa ee tuub kasta waa in lagu tijaabiyaa tijaabo koronto oo aan burbursanayn .Halka lagu sameeyo tijaabada koronto ee aan burbursanayn, dhererka waa in lagu calaamadiyaa xarfaha"NDE"

Baaritaanka ultrasonic

Imtixaanka qallafsan ee hadda jira

CodsigaASTM A252 LSAW Dhuumaha Birta:

Dhuumaha lagu dalbado sifayntan ayaa loogu talagalay tuunbooyinka tuubooyinka kaas oo dhululubada birta ay u shaqeyso sidii xubin rareyn joogto ah, ama sidii qolof si ay u sameeyaan tuulmooyin shub ah oo meel ku yaal.

Qiimaha jaban ASTM oo ah 252 Tusmada Dhuumaha Birta

Dulqaadka dhexroorka dibadda, dhumucda gidaarka, dhererka iyo miisaanka:

Dhexroor ka baxsan	Dhexroorka ka baxsan tuubooyinka tuubooyinka waa in aanay ka duwanaan doonin wax ka badan ±1% dhexroorka dibadda ee la cayimay.
Dhumucda gidaarka	Dhumucdiisuna waxay tahay waa in aanay ka badnayn 12.5% oo hoos timaada dhumucda darbiga magaca ee la cayimay.
Dhererka	Tusmada tuubooyinka waa in lagu gogladaa dherer random ah, labanlaab random dhererka, ama dhererka lebbiska sida lagu qeexay nidaamka iibka, iyadoo la raacayo xuduudaha soo socda:	Dherer aan kala sooc lahayn oo keli ah	16 ilaa 25ft (4.88 ilaa 7.62mm), inji
		Dhererka labanlaaban ee random	In ka badan 25ft (7.62m) oo leh celceliska ugu yar ee 35ft (10.67m)
		Dhererka lebbiska	dhererka sida lagu qeexay kala duwanaanshaha la ogol yahay ee ±1 in.
Miisaanka	Dherer kasta oo tuunsan tuubooyinka waa in si gaar ah loo miisaamaa oo miisaankeedu waa in aanu ka duwanayn 15% in ka badan ama 5% marka la eego miisaankeeda aragtiyeed, iyada oo la xisaabinayo iyada oo la isticmaalayo dhererkeeda iyo miisaankeeda dhererka halbeeg kasta.