Kev Siv Lub Tshuab Welded Arc Vuam Cov Kav Dej Nroj Tsuag

Kauv Welded Raj Arc Vuam Ntawm Cov Kav Dej Nroj Tsuag Featured Duab

Kev Piav Qhia Luv:

Arc welding yog ib kauj ruam tseem ceeb hauv cov txheej txheem tsim khoom ntawmkauv welded rajs, tshwj xeeb tshaj yogcov yeeb nkab roj avs. Nws cuam tshuam nrog kev siv qhov kub siab los tsim kom muaj kev sib txuas ruaj khov thiab ruaj khov ntawm cov kav dej, kom ntseeg tau tias muaj kev ua haujlwm zoo thiab kav ntev. Hauv tsab xov xwm no, peb'Kuv yuav mus kawm txog qhov nyuaj ntawm cov yeeb nkab roj av uas muaj kauv sib txuas thiab vim li cas nws thiaj li ua tau li ntawd.'ib feem tseem ceeb ntawm kev lag luam pipeline.

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Raucov yeeb nkab roj avs, kev nyab xeeb thiab kev ntseeg siab yog qhov tseem ceeb tshaj plaws. Arc welding ua lub luag haujlwm tseem ceeb hauv kev ua kom cov kav dej no tuaj yeem tiv taus cov xwm txheej hnyav uas lawv ntsib thaum lub sijhawm ua haujlwm. Cov txheej txheem arc welding cuam tshuam nrog kev siv hluav taws xob los tsim cov cua sov hnyav uas yaj cov npoo ntawm cov kav dej thiab sib xyaw ua ke.

Tus Qauv	Qib hlau	Cov tshuaj lom neeg muaj pes tsawg leeg									Cov khoom siv tensile							Kev Ntsuas Kev Cuam Tshuam Charpy thiab Kev Ntsuas Qhov Hnyav Ntawm Qhov Tso Tawm
		C	Si	Mn	P	S	V	Nb	Ti		CEV4)（%）	Rt0.5 Mpa Tawm zog		Lub zog Tensile Rm Mpa		Rt0.5 / Rm	(L0 = 5.65 √ S0) Kev Ntev A%
		siab tshaj plaws	siab tshaj plaws	siab tshaj plaws	siab tshaj plaws	siab tshaj plaws	siab tshaj plaws	siab tshaj plaws	siab tshaj plaws	Lwm yam	siab tshaj plaws	feeb	siab tshaj plaws	feeb	siab tshaj plaws	siab tshaj plaws	feeb
	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	Kev ntsuam xyuas qhov cuam tshuam ntawm Charpy: Lub zog nqus dej ntawm lub cev yeeb nkab thiab cov xov hlau yuav tsum tau kuaj raws li qhov xav tau hauv tus qauv qub. Yog xav paub ntxiv, saib tus qauv qub. Kev ntsuam xyuas qhov hnyav poob: Thaj chaw txiav xaiv tau
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	Kev sib tham	555	705	625	825	0.95	18
	Lus Cim:
	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） Rau txhua qib hlau, Mo yuav ≤ 0.35%, raws li daim ntawv cog lus.
	4) CEV=C+ Mn/6 + (Cr+Mo+V)/5 + (Cu+Ni)/5

Ib qho ntawm cov yam tseem ceeb uas yuav tsum xav txog thaum siv arc welding cov kav dej roj av yog hom kev siv vuam. Raukauv welded rajs, txoj kev siv feem ntau yog submerged arc welding (SAW) technology. Qhov no suav nrog kev siv cov granular flux, uas raug nchuav rau ntawm thaj chaw vuam kom tsim kom muaj huab cua tiv thaiv kev oxidation thiab lwm yam kab mob los ntawm kev cuam tshuam rau qhov vuam. Qhov no ua rau muaj qhov vuam zoo, sib xws nrog qhov tsis zoo tsawg kawg nkaus.

Lwm qhov tseem ceeb uas yuav tsum xav txog thaum vuam cov kav dej roj av yog kev xaiv cov khoom siv vuam. Cov khoom siv vuam yog siv los sau cov qhov sib txawv lossis qhov tsis sib xws hauv qhov vuam, tsim kom muaj kev sib txuas ruaj khov thiab sib xws. Rau cov kav dej vuam kauv, yuav tsum siv cov khoom siv vuam uas sib xws nrog qib hlau tshwj xeeb siv thiab cov xwm txheej ib puag ncig uas cov kav dej raug nthuav tawm. Qhov no ua kom ntseeg tau tias qhov vuam tuaj yeem tiv taus qhov siab thiab kub uas cov kav dej roj av ntsib.

Ntxiv rau cov yam ntxwv ntawm kev vuam arc, nws tseem ceeb heev uas yuav tsum xav txog cov kev tsim nyog thiab kev paub ntawm tus neeg vuam ua haujlwm. Kev vuam arc ntawm cov kav dej roj av xav tau kev txawj ntse thiab kev txawj ntse siab, nrog rau kev nkag siab zoo txog cov teeb meem tshwj xeeb thiab cov kev xav tau ntawm txoj haujlwm. Nws yog ib qho tseem ceeb uas yuav tsum ua haujlwm nrog cov neeg vuam uas muaj kev paub dhau los thiab tau ntawv pov thawj uas tuaj yeem tsim cov vuam zoo uas ua tau raws li cov qauv nruj ntawm kev lag luam.

Xaus lus, cov yeeb nkab roj av uas muaj kauv vuam yog ib qho tseem ceeb ntawm kev lag luam kav dej. Nws yuav tsum tau xav txog cov txheej txheem vuam, cov ntaub ntawv sau, thiab cov kev tsim nyog ntawm tus kws vuam ua haujlwm. Los ntawm kev ua kom cov yam no tau txais kev saib xyuas uas lawv tsim nyog, nws yuav ua tau los tsim cov yeeb nkab roj av uas ua tau raws li kev lag luam xav tau rau kev nyab xeeb, kev ntseeg siab thiab kev ua haujlwm ntev.

Yav dhau los: Cov txiaj ntsig ntawm A252 Qib 2 Hlau Yeeb Nkab Kauv Submerged Arc Welded Polypropylene Lined Yeeb Nkab

Tom ntej no: Cov Zoo ntawm Kev Siv Cov Yeeb Nkab Polyurethane Lined Hauv Ob Chav Submerged Arc Welded (DSAW) EN10219 Pipeline Applications

Sau koj cov lus ntawm no thiab xa tuaj rau peb