ASTM A671/A671M LSAW Pipe ea tšepe

Tlhaloso e Khutšoanyane:

Boholo: OD: 406 ~ 1500mm WT: 6 ~ 40mm

Kereiti: CB60, CB65, CC60, CC65, joalo-joalo.

Bolelele: 12M kapa bolelele bo boletsoeng kamoo ho hlokahalang.

Qetello: Plain End, Beveled End, Grooved;

Lipehelo tsa tefo: LC/TT/DP

Mantsoe a bohlokoa: ASTM A671 Lsaw Steel Pipe, ASTM A672 C65 Lsaw Steel Pipe, carbon Lsaw steel pipe, Lsaw steel pipe mofani wa thepa.

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Lintlha tsa Sehlahisoa

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Li-tag tsa Sehlahisoa

Tšebeliso ea ASTM A671/A671MPipe ea tšepe ea LSAW

Theko e tlaase ea ASTM e 252 qubu ea phala ea tšepe

Mokhoa oa Tlhahiso

Mokhoa oa ho etsa Pipe ea Longitudinal Submerged-arc Welded(LSAW) e tjena:

Ultrasonic plate probing → edge milling → pele ho kobeha → ho theha → Ho tjheseletsa pele → Ho tjheseletsa ka hare → Ho tjheseletsa ka ntle → Tlhahlobo ea Ultrasonic → tlhahlobo ea X-ray → Ho atolosa → tlhahlobo ea hydraulic →l.Chamfering → Tlhahlobo ea mahlaseli → Tlhahlobo ea X-ray → tlhahlobo ea matla a khoheli qetellong ea tube

Lintlha ka ASTM A671 LSAW(JCOE) Peipi ea Tšepe ea Carbon:

Moetso: LSAW(JCOE) Lipeipi tsa tšepe

Boholo: OD: 406 ~ 1500mm WT: 6 ~ 40mm

Kereiti: CB60, CB65, CC60, CC65, joalo-joalo.

Bolelele: 12M kapa bolelele bo boletsoeng kamoo ho hlokahalang.

Qetello: Plain End, Beveled End, Grooved;

Motsoako oa Lik'hemik'hale oaASTM A671Pipe ea tšepe ea LSAW ea Carbon

Litlhoko tsa Lik'hemik'halebakeng sa ASTM A672 B60/B70/C60/C65/C70LSAWPipe ea tšepe ea carbon
Pipe	Kereiti	Moetso, %
		C max					Mn			P max	S max	Si	Ba bang
		<=1in (25mm)	>1~2in (25~50mm)	>2~4in(50-100mm)	> 4~8in (100~200mm)	>8in (200mm)	</=1/2in (12.5mm)	>1/2in (12.5mm)
CB	60	0.24	0.21	0.29	0.31	0.31	0.98 max			0.035	0.035	0.13–0.45	...
	65	0.28	0.31	0.33	0.33	0.33	0.98 max			0.035	0.035	0.13–0.45	...
	70	0.31	0.33	0.35	0.35	0.35	1.30 max			0.035	0.035	0.13–0.45	...
CC	60	0.21	0.23	0.25	0.27	0.27	0.55–0.98		0.79–1.30	0.035	0.035	0.13–0.45	...
	65	0.24	0.26	0.28	0.29	0.29	0.79–1.30		0.79–1.30	0.035	0.035	0.13–0.45	...
	70	0.27	0.28	0.30	0.31	0.31	0.79–1.30		0.79–1.30	0.035	0.035	0.13–0.45	...

Thepa ea Mechini ea ASTM A671 LSAW Pipe ea Tšepe ea Khabone:

Thepa ea Mechini
Kereiti
	CB65	CB70	CC60	CC65	CC70
Matla a tsitsitseng, min:
ksi	65	70	60	65	70
Mpa	450	485	415	450	485
Ho hlahisa matla, min:
ksi	35	38	32	35	38
MPa	240	260	220	240	260

Phapang e Dumeletsoeng ea Boima le Botekanyo

1. Diameter e ka Ntle-Ho ipapisitsoe le tekanyo e potolohileng ± 0.5% ea bophara bo boletsoeng ka ntle.

2. Out-of-Roundness-Phapang pakeng tsa boholo le tse nyenyane ka ntle didiameter.

3. Ho tsamaisana-Ho sebelisa 10 ft (3m) ho otloloha ho behoa e le hore lipheletsong ka bobeli li kopane le phala, 1/8 ka hare (3mm).

4. Botenya-Botenya bo fokolang ba lebota sebakeng leha e le sefe sa phala ha boa lokela ho feta 0.01 in. (0.3mm) tlas'a botenya bo boletsoeng ka lebitso.

5. Bolelele bo nang le lipheletso tse sa sebetsanoang bo tla ba ka hare ho -0+1/2 in. (-0+13mm) ho tse boletsoeng.Bolelele bo nang le lipheletso tse entsoeng ka mochini bo tla ba joalo ka ha ho lumellanoe pakeng tsa moetsi le moreki.

Liteko tsa Mechini bakeng sa Pipe ea tšepe ea ASTM A671 LSAW:

Teko ea Tension - Thepa e fapaneng ea lenonyeletso le cheselitsoeng e tla fihlela litlhoko tse tlase bakeng sa matla a ho qetela a matla a poleiti e boletsoeng.

Transverse-tataisa-weld-bent liteko -The koba teko e tla amoheleha haeba ho se mapetsong kapa likoli tse ling tse fetang 1/8 in. (3mm) ka tsela efe kapa efe ba teng ka tšepe tjheseletsa kapa pakeng tsa tjheseletsa le tšepe botlaaseng ka mor'a ho kobeha.

Radio-graphic Examination-Bolelele bo felletseng ba weld ka 'ngoe ea sehlopha sa X1 le X2 bo tla hlahlojoa ka radiographic ho latela le ho fihlela litlhoko tsa ASME Boiler le Pressure Vessel Code, Karolo ea bosupa, serapa sa UW-51.

Ponahalo ea pipi ea tšepe ea ASTM A671 LSAW:

Lebitso kapa letšoao la moetsi
Nomoro e khethehileng (letsatsi la selemo kapa le hlokahalang)
Boholo (OD, WT, bolelele)
Kereiti (A kapa B)
Mofuta oa peipi(F, E, kapa S)
Khatello ea teko (peipi ea tšepe e se nang seam feela)
Nomoro ea Mocheso
Tlhahisoleseding efe kapa efe e eketsehileng e boletsoeng ho odara ea theko.

Ho odara litaba

Bongata (maoto, limithara, kapa palo ea bolelele)
Lebitso la thepa (peipi ea tšepe, fusion ea motlakase e cheselitsoeng)
Nomoro ea tlhaloso
Likhetho tsa sehlopha le tsa sehlopha
Boholo (ka ntle kapa ka hare bophara, botenya bo tloaelehileng kapa bo fokolang)
Bolelele (bo khethehileng kapa bo sa reroang)
Qetello ea ho qetela
Likhetho tsa ho reka
Litlhoko tsa tlatsetso, haeba li teng.