Ho Welded Tube ea Spiral Arc ea Liphaephe tsa Khase ea Tlhaho

Ho Welded Tube e Spiral Arc ea Liphaephe tsa Khase ea Tlhaho Setšoantšo se Hlahisitsoeng

Tlhaloso e Khutšoanyane:

Ho tjheseletsa arc ke mohato wa bohlokwa tshebetsong ya tlhahiso yatube e tjheseletsoeng ka spiralhaholo-holophaephe ea khase ea tlhahos. E kenyelletsa ho sebelisa mocheso o phahameng ho theha tlamo e matla le e tšoarellang pakeng tsa liphaephe, ho netefatsa ts'ebetso e tšepahalang le e tšoarellang nako e telele. Sehloohong sena, re'Ke tla teba mathateng a phaephe ea khase ea tlhaho e kopantsoeng ka spiral e nang le arc e kopantsoeng le hore na ke hobane'ng ha e le joalo.'karolo ea bohlokoa ea indasteri ea lipeipi.

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Qaqiso ea Sehlahisoa

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Bakeng saphaephe ea khase ea tlhahos, polokeho le botshepehi ke tsa bohlokwa. Ho tjheseletsa arc ho bapala karolo ya bohlokwa ho netefatseng hore diphaephe tsena di kgona ho mamella maemo a thata ao di tobanang le ona nakong ya bophelo ba tsona ba tshebeletso. Tshebetso ya ho tjheseletsa arc e kenyelletsa ho sebedisa motlakase ho hlahisa mocheso o matla o qhibilihisang mathoko a diphaephe mme o di kopanye.

E tloaelehileng	Sehlopha sa tšepe	Sebopeho sa lik'hemik'hale									Matlo a ho thapolla							Teko ea Tšusumetso ea Charpy le Teko ea ho lahla boima ba 'mele
		C	Si	Mn	P	S	V	Nb	Ti		CEV4)（%）	Matla a tlhahiso ea Rt0.5 Mpa		Matla a Tensile a Rm Mpa		Rt0.5/ Rm	（L0=5.65 √ S0）Ho lelefatsa A%
		boholo	boholo	boholo	boholo	boholo	boholo	boholo	boholo	Tse ling	boholo	motsotso	boholo	motsotso	boholo	boholo	motsotso
	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	Teko ea tšusumetso ea Charpy: Matla a monyang tšusumetso ea 'mele oa phaephe le seam ea weld a tla lekoa joalo ka ha ho hlokahala tekanyetsong ea pele. Bakeng sa lintlha tse qaqileng, sheba tekanyetso ea pele. Teko ea ho taboha ha boima ba lerotholi: Sebaka sa ho kuta se khethiloeng
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	Puisano	555	705	625	825	0.95	18
	Hlokomela:
	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）Bakeng sa mekgahlelo yohle ya tshepe, Mo e ka ba ≤ 0.35%, tlasa konteraka.
	4）CEV=C+ Mn/6 + (Cr+Mo+V)/5 + (Cu+Ni)/5

E 'ngoe ea lintlha tsa bohlokoa tseo u lokelang ho li nahana ha u tjheseletsa liphaephe tsa khase ea tlhaho ke mofuta oa mokhoa oa ho tjheseletsa o sebelisoang.tube e tjheseletsoeng ka spirals, mokhoa o sebelisoang haholo ke theknoloji ea ho welding ea arc e ka tlas'a metsi (SAW). Sena se kenyelletsa ho sebelisa granular flux, e tšolleloang holim'a sebaka sa ho welding ho theha sepakapaka se sireletsang se thibelang oxidation le litšila tse ling ho ama weld. Sena se fella ka weld ea boleng bo holimo, e ts'oanang e nang le liphoso tse fokolang.

Ntho e 'ngoe ea bohlokoa eo u lokelang ho e ela hloko ha u tjheseletsa liphaephe tsa khase ea tlhaho ke khetho ea thepa ea ho tlatsa liphaephe tsa khase ea tlhaho. Thepa ea ho tlatsa e sebelisoa ho tlatsa likheo kapa lintho tse sa tloaelehang tse ka har'a tjheseletso, e leng se etsang hore ho be le tlamo e matla le e tsitsitseng. Bakeng sa liphaephe tse tjheselitsoeng ka spiral, thepa ea ho tlatsa e tlameha ho sebelisoa e lumellanang le sehlopha se itseng sa tšepe se sebelisitsoeng le maemo a tikoloho ao phaephe e pepesehetseng ho 'ona. Sena se netefatsa hore tjheseletso e ka mamella likhatello le mocheso tse fumanoang ke liphaephe tsa khase ea tlhaho.

Ntle le lintlha tsa botekgeniki tsa ho tjheseletsa arc, ho bohlokoa hape ho nahana ka litšoaneleho le boiphihlelo ba motjhini ea etsang mosebetsi. Ho tjheseletsa arc ea liphaephe tsa khase ea tlhaho ho hloka boiphihlelo bo phahameng le boiphihlelo, hammoho le kutloisiso e batsi ea liphephetso le litlhoko tse ikhethang tsa mosebetsi. Ho bohlokoa ho sebetsa le batjhini ba nang le boiphihlelo le ba nang le mangolo ba ka hlahisang li-weld tsa boleng bo holimo tse fihlelang litekanyetso tse thata tsa indasteri.

Qetellong, phaephe ea khase ea tlhaho e kopantsoeng ka spiral welded tube arc ke karolo ea bohlokoa indastering ea liphaephe. E hloka ho nahanoa ka hloko ka mekhoa ea ho tjheseletsa, thepa ea ho tlatsa, le litšoaneleho tsa motjhini ea etsang mosebetsi. Ka ho netefatsa hore lintlha tsena li fumana tlhokomelo eo li e tšoanelang, ho tla khoneha ho theha liphaephe tsa khase ea tlhaho tse fihlelang litlhoko tsa indasteri bakeng sa polokeho, ts'epo le ts'ebetso ea nako e telele.

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