Spiral Welded Tube Arc Welding Of Natural Gasi Mapaipi

Kufotokozera Kwachidule:

Kuwotcherera kwa Arc ndi gawo lofunikira kwambiri popangachubu chozungulira chozunguliras, makamakachitoliro cha gasis.Zimaphatikizapo kugwiritsa ntchito kutentha kwakukulu kuti apange mgwirizano wolimba, wokhazikika pakati pa mapaipi, kuonetsetsa kuti ntchito yodalirika komanso yokhalitsa.M'nkhaniyi, ife'tidziwira mu zovuta za spiral welded arc welded gasi chitoliro ndi chifukwa chake'ndi gawo lofunikira kwambiri lamakampani opanga mapaipi.

Titumizireni imelo

Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Zachitoliro cha gasis, chitetezo ndi kudalirika ndizofunikira kwambiri.Kuwotcherera kwa Arc kumagwira ntchito yofunika kwambiri powonetsetsa kuti mapaipiwa atha kupirira zovuta zomwe amakumana nazo pa moyo wawo wautumiki.Njira yowotcherera arc imaphatikizapo kugwiritsa ntchito magetsi kuti apange kutentha kwakukulu komwe kumasungunula m'mphepete mwa mapaipi ndikuwaphatikiza pamodzi.

Standard	Chitsulo kalasi	Chemical zikuchokera									Makoma katundu							Mayeso a Charpy Impact ndi Mayeso a Drop Weight Tear
		C	Si	Mn	P	S	V	Nb	Ti		CEV4) (%)	Rt0.5 Mpa Zokolola mphamvu		Rm Mpa Tensile Strength		Rt0.5/ Rm	(L0=5.65 √ S0)Elongation A%
		max	max	max	max	max	max	max	max	Zina	max	min	max	min	max	max	min
	L245MB	0.22	0.45	1.2	0.025	0.15	0.05	0.05	0.04	1)	0.4	245	450	415	760	0.93	22	Kuyesa kwa Charpy impact: Mphamvu yotengera mphamvu ya thupi la chitoliro ndi msoko wowotcherera idzayesedwa monga momwe zimafunira mulingo woyambirira.Kuti mudziwe zambiri, onani muyeso woyambirira.Mayeso ogwetsa misozi: Malo ometa mwasankha
GB/T9711-2011 (PSL2)	L290MB	0.22	0.45	1.3	0.025	0.015	0.05	0.05	0.04	1)	0.4	290	495	415			21
	L320MB	0.22	0.45	1.3	0.025	0.015	0.05	0.05	0.04	1)	0.41	320	500	430			21
	L360MB	0.22	0.45	1.4	0.025	0.015				1)	0.41	360	530	460			20
	L390MB	0.22	0.45	1.4	0.025	0.15				1)	0.41	390	545	490			20
	L415MB	0.12	0.45	1.6	0.025	0.015				1) 2) 3	0.42	415	565	520			18
	L450MB	0.12	0.45	1.6	0.025	0.015				1) 2) 3	0.43	450	600	535			18
	L485MB	0.12	0.45	1.7	0.025	0.015				1) 2) 3	0.43	485	635	570			18
	L555MB	0.12	0.45	1.85	0.025	0.015				1) 2) 3	Kukambilana	555	705	625	825	0.95	18
	Zindikirani:
	1）0.015 ≤ Altot ＜ 0.060;N ≤ 0.012;AI—N ≥ 2—1;Cu ≤ 0.25;Ni ≤ 0.30;Cr ≤ 0.30;Mo ≤ 0.10;
	2）V+Nb+Ti ≤ 0.015%
	3) Pamagulu onse achitsulo, Mo akhoza ≤ 0.35%, pansi pa mgwirizano.
	4）CEV=C+ Mn/6 + (Cr+Mo+V)/5 + (Cu+Ni)/5

Chimodzi mwazinthu zofunika kuziganizira mukawotcherera mapaipi a gasi achilengedwe ndi mtundu wa njira zowotcherera zomwe zimagwiritsidwa ntchito.Zachubu chozungulira chozunguliras, njira yomwe imagwiritsidwa ntchito kwambiri ndiukadaulo wa submerged arc welding (SAW).Izi zimaphatikizapo kugwiritsa ntchito granular flux, yomwe imatsanuliridwa pa malo owotcherera kuti apange mpweya wotetezera womwe umalepheretsa makutidwe ndi okosijeni ndi zonyansa zina kuti zisakhudze kuwotcherera.Izi zimabweretsa kutenthetsa kwapamwamba, yunifolomu yokhala ndi zolakwika zochepa.

Chinthu chinanso chofunikira pakuwotcherera mapaipi a gasi achilengedwe ndikusankha zinthu za weld filler.Zinthu zodzaza zimagwiritsidwa ntchito kudzaza mipata iliyonse kapena zosokoneza mu weld, kupanga mgwirizano wamphamvu komanso wosasinthasintha.Kwa mapaipi ozungulira ozungulira, zinthu zodzaza ziyenera kugwiritsidwa ntchito zomwe zimagwirizana ndi chitsulo chomwe chimagwiritsidwa ntchito komanso momwe chilengedwe chimawonekera.Izi zimatsimikizira kuti weld amatha kupirira zovuta ndi kutentha komwe kumachitika ndi mapaipi a gasi.

Kuwonjezera pa luso la kuwotcherera arc, ndikofunikanso kuganizira ziyeneretso ndi luso la wowotcherera akugwira ntchitoyo.Kuwotcherera kwa Arc kwa mapaipi achilengedwe kumafuna luso lapamwamba komanso ukadaulo, komanso kumvetsetsa bwino zovuta ndi zofunikira za ntchitoyo.Ndikofunikira kuti mugwire ntchito ndi ma welder odziwa bwino ntchito komanso ovomerezeka omwe amatha kupanga ma welds apamwamba kwambiri omwe amakwaniritsa zofunikira zamakampaniwo.

Pomaliza, spiral welded tube arc welded gasi chitoliro ndi gawo lofunikira pamakampani opanga mapaipi.Pamafunika kulingalira mosamala za njira zowotcherera, zida zodzaza, ndi ziyeneretso za wowotcherera yemwe amagwira ntchitoyo.Poonetsetsa kuti zinthuzi zikulandira chisamaliro choyenera, zidzatheka kupanga mapaipi a gasi omwe amakwaniritsa zofunikira zamakampani kuti ateteze, kudalirika komanso kugwira ntchito kwa nthawi yaitali.

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