Cov txiaj ntsig ntawm A252 Qib 3 Cov Kav Hlau Siv Hauv Kev Tsim Kho Cov Kav Dej Phwj Tuaj thiab Cov Kav Dej Roj Av

Kev Piav Qhia Luv:

A252 Qib 3 yeeb nkab hlau, tseem hu uakauv submerged arc yeeb nkab, yog ib qho kev xaiv nrov rau kev tsim cov kav dej phwj thiab cov kav dej roj. Cov kav dej no tau tsim los kom tiv taus cov xwm txheej hnyav thiab muaj ntau yam zoo hauv cov ntawv thov no.

Xa email rau peb

Cov Khoom Qhia Txog Khoom

Cov Cim Npe Khoom

Ib qho ntawm cov txiaj ntsig tseem ceeb ntawmA252 Qib 3 yeeb nkab hlau yog nws lub zog thiab kev ruaj khov tshwj xeeb. Cov kav dej no yog ua los ntawm cov hlau zoo thiab tiv taus kev xeb, kev hnav thiab kev cuam tshuam. Qhov no ua rau lawv zoo tagnrho rau kev siv hauv cov kav dej phwj uas lawv yuav raug rau cov tshuaj xeb thiab cov khoom hnyav. Tsis tas li ntawd, lawv lub zog thiab kev ruaj khov ua rau lawv tsim nyog rau kev siv hauv kev tsim cov kav dej roj, vim lawv yuav tsum tiv taus kev nyuaj siab thiab kev hloov pauv ib puag ncig.

Tus Qauv	Qib Hlau	Cov Tshuaj Cheebtsam (%)						Cov Khoom Siv Tensile						Charpy(V qhov) Kev Ntsuas Kev Cuam Tshuam
		c	Mn	p	s	Si	Lwm yam	Lub Zog Tawm(Mpa)		Lub zog tensile(Mpa)		（L0=5.65 √ S0）min Qhov Ncab Ncab (%)
		siab tshaj plaws	siab tshaj plaws	siab tshaj plaws	siab tshaj plaws	siab tshaj plaws	Lwm yam	feeb	siab tshaj plaws	feeb	siab tshaj plaws	D ≤ 168.33 hli	D > 168.3 hli
GB/T3091 -2008	Q215A	≤ 0.15	0.25 ＜ 1.20	0.045	0.050	0.35	Ntxiv NbVTi raws li GB/T1591-94	215		335		15	> 31
	Q215B	≤ 0.15	0.25-0.55	0.045	0.045	0.035		215		335		15	> 31
	Q235A	≤ 0.22	0.30 ＜ 0.65	0.045	0.050	0.035		235		375		15	>26
	Q235B	≤ 0.20	0.30 ≤ 1.80	0.045	0.045	0.035		235		375		15	>26
	Q295A	0.16	0.80-1.50	0.045	0.045	0.55		295		390		13	>23
	Q295B	0.16	0.80-1.50	0.045	0.040	0.55		295		390		13	>23
	Q345A	0.20	1.00-1.60	0.045	0.045	0.55		345		510		13	>21
	Q345B	0.20	1.00-1.60	0.045	0.040	0.55		345		510		13	>21
GB/ T9711- Xyoo 2011 （PSL1）	L175	0.21	0.60	0.030	0.030		Xaiv tau ntxiv ib qho ntawm NbVTi cov ntsiab lus lossis ib qho kev sib xyaw ua ke ntawm lawv	175		310		27		Ib los yog ob qho ntawm cov ntsuas kev tawv ntawm tej zaum yuav xaiv tau lub zog cuam tshuam thiab thaj chaw txiav. Rau L555, saib tus qauv.
	L210	0.22	0.90	0.030	0.030			210		335		25
	L245	0.26	1.20	0.030	0.030			245		415		21
	L290	0.26	1.30	0.030	0.030			290		415		21
	L320	0.26	1.40	0.030	0.030			320		435		20
	L360	0.26	1.40	0.030	0.030			360		460		19
	L390	0.26	1.40	0.030	0.030			390		390		18
	L415	0.26	1.40	0.030	0.030			415		520		17
	L450	0.26	1.45	0.030	0.030			450		535		17
	L485	0.26	1.65	0.030	0.030			485		570		16
API 5L (PSL 1)	A25	0.21	0.60	0.030	0.030		Rau qib B steel, Nb + V ≤ 0.03%; rau hlau ≥ qib B, xaiv tau ntxiv Nb lossis V lossis lawv kev sib xyaw ua ke, thiab Nb + V + Ti ≤ 0.15%	172		310		(L0 = 50.8 hli) yuav tsum yog xam raws li cov qauv hauv qab no: e=1944·A0 .2/U0 .0 A: Cheeb Tsam ntawm cov qauv hauv mm2 U: Lub zog tensile tsawg kawg nkaus tau teev tseg hauv Mpa		Tsis muaj los yog ib qho los yog ob qho tib si qhov cuam tshuam lub zog thiab qhov kev txiav thaj chaw yuav tsum tau ua raws li qhov ntsuas kev tawv.
	A	0.22	0.90	0.030	0.030			207		331
	B	0.26	1.20	0.030	0.030			241		414
	X42	0.26	1.30	0.030	0.030			290		414
	X46	0.26	1.40	0.030	0.030			317		434
	X52	0.26	1.40	0.030	0.030			359		455
	X56	0.26	1.40	0.030	0.030			386		490
	X60	0.26	1.40	0.030	0.030			414		517
	X65	0.26	1.45	0.030	0.030			448		531
	X70	0.26	1.65	0.030	0.030			483		565

Lwm qhov zoo ntawm A252 Qib 3 steel yeeb nkab yog nws qhov kev hloov pauv tau yooj yim. Cov yeeb nkab no muaj ntau qhov ntau thiab tsawg thiab tuab, ua rau lawv haum rau ntau yam kev siv. Txawm hais tias tsim ib qho me metxoj kab dej phwj tuajlossis cov kav dej roj loj, A252 Qib 3 cov yeeb nkab hlau tuaj yeem hloov kho tau yooj yim kom ua tau raws li cov kev xav tau tshwj xeeb ntawm cov haujlwm. Tsis tas li ntawd, cov yeeb nkab no tuaj yeem ua raucov kav dej hollow-section, txuas ntxiv nthuav lawv txoj kev siv hauv cov haujlwm tsim kho.

Ntxiv rau nws lub zog thiab kev hloov pauv tau yooj yim, A252 Qib 3 cov yeeb nkab hlau kuj paub txog nws cov nqi tsim nyog. Cov yeeb nkab no yooj yim rau kev teeb tsa thiab xav tau kev saib xyuas tsawg kawg nkaus, txo cov nqi tag nrho ntawm cov haujlwm. Tsis tas li ntawd, lawv lub neej ua haujlwm ntev thiab kev tiv thaiv corrosion ua kom lawv muab cov nyiaj rov qab zoo rau kev nqis peev rau cov dej phwj tuaj thiabroj yeeb nkab kabtej yaam num tsim kho.

Lwm qhov zoo ntawm A252 Qib 3 steel yeeb nkab yog nws qhov sib xws nrog ntau txoj kev tsim kho. Cov yeeb nkab no tuaj yeem ntsia tau siv cov txheej txheem khawb av ib txwm muaj lossis cov txheej txheem tsis muaj qhov av xws li kev khawb kab rov tav, kev khawb yeeb nkab lossis micro-tunneling. Qhov kev ywj pheej no tso cai rau kev teeb tsa zoo thiab pheej yig hauv ntau qhov chaw nyuaj, suav nrog thaj chaw hauv nroog, dej thiab thaj chaw uas muaj kev cuam tshuam rau ib puag ncig.

Zuag qhia tag nrho, A252 Qib 3 cov yeeb nkab hlau muaj ntau yam zoo rau kev tsim cov kav dej phwj thiab cov kav dej roj av. Lawv lub zog, kev ruaj khov, kev hloov pauv tau yooj yim thiab kev siv nyiaj tsim nyog ua rau lawv zoo tagnrho rau cov ntawv thov no. Txawm hais tias siv rau hauv kev tsim cov kav dej phwj lossis cov kav dej roj, cov yeeb nkab no muab kev ua tau zoo thiab muaj nqis mus sij hawm ntev. Yog li ntawd, lawv tseem yog qhov kev daws teeb meem rau cov engineers thiab cov neeg cog lus uas tab tom nrhiav kev daws teeb meem kav dej ruaj khov thiab txhim khu kev qha.

Yav dhau los: Cov kav dej sib txuas rau cov kav dej hauv av

Tom ntej no: Cov Zoo ntawm Kev Siv Cov Kav Hlau Carbon Welded Spiral

Sau koj cov lus ntawm no thiab xa tuaj rau peb