Cov Yeeb Nkab Hlau Welded Rau Cov Roj Thiab Cov Pa Roj

Kev Piav Qhia Luv:

Hauv cov teb uas niaj hnub hloov zuj zus ntawm kev tsim vaj tsev thiab kev tsim vaj tsev, kev nce qib ntawm thev naus laus zis txuas ntxiv txhais dua txoj kev siv cov haujlwm. Ib qho ntawm cov kev hloov pauv tshiab zoo kawg nkaus yog cov yeeb nkab hlau uas tau vuam ua ke. Cov yeeb nkab muaj cov xov sib txuas ntawm nws qhov chaw thiab yog tsim los ntawm kev khoov cov hlau ua voj voog thiab tom qab ntawd vuam lawv, coj lub zog tshwj xeeb, kev ruaj khov thiab kev hloov pauv mus rau cov txheej txheem vuam yeeb nkab. Cov lus qhia txog cov khoom no lub hom phiaj yog los piav qhia txog cov yam ntxwv tseem ceeb ntawm cov yeeb nkab vuam ua ke thiab qhia txog nws lub luag haujlwm hloov pauv hauv kev lag luam roj thiab roj.

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Cov Khoom Qhia Txog Khoom

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Taw qhia:

Khoom piav qhia:

Cov kav hlau txuas ua ke, los ntawm lawv txoj kev tsim, muaj ntau qhov zoo sib txawv dua li cov kav dej ib txwm muaj. Nws cov txheej txheem tsim khoom tshwj xeeb ua kom muaj qhov tuab sib xws thoob plaws nws qhov ntev, ua rau nws tiv taus kev ntxhov siab sab hauv thiab sab nraud. Qhov kev ruaj khov no ua rau cov yeeb nkab vuam sib txuas zoo tagnrho rau cov roj thiab roj xa mus rau qhov twg kev nyab xeeb thiab kev ntseeg siab yog qhov tseem ceeb.

Cov thev naus laus zis vuam siv rau hauv nws cov khoom tsim muaj kev ywj pheej thiab kev hloov pauv ntau dua, ua rau cov kav dej tiv taus cov xwm txheej hnyav xws li kub siab, qhov sib txawv ntawm lub siab thiab kev puas tsuaj ntuj tsim. Tsis tas li ntawd, qhov kev tsim tshiab no ua rau muaj kev tiv thaiv xeb thiab hnav, pab ua kom lub neej ua haujlwm ntev dua thiab txo cov nqi kho.

Rooj 2 Cov Khoom Siv Lub Cev Thiab Tshuaj Lom Zem Tseem Ceeb ntawm Cov Kav Hlau (GB/T3091-2008, GB/T9711-2011 thiab API Spec 5L)
Tus Qauv	Qib Hlau	Cov Tshuaj Cheebtsam (%)						Cov Khoom Siv Tensile						Charpy (V notch) Kev Ntsuas Qhov Cuam Tshuam
		c	Mn	p	s	Si	Lwm yam	Lub zog tawm los (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 Nb\V\Ti 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/T9711-2011 (PSL1)	L175	0.21	0.60	0.030	0.030		Xaiv tau ntxiv ib qho ntawm Nb\V\Ti cov ntsiab lus lossis ib qho kev sib xyaw ua ke ntawm lawv	175		310		27		Ib lossis ob qho ntawm cov ntsuas kev tawv ntawm lub zog cuam tshuam thiab thaj chaw txiav yuav raug xaiv. 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 hlau, Nb + V ≤ 0.03%; rau hlau ≥ qib B, xaiv tau ntxiv Nb lossis V lossis lawv cov kev sib xyaw ua ke, thiab Nb + V + Ti ≤ 0.15%	172		310		(L0 = 50.8 hli) yuav tsum tau xam raws li cov qauv hauv qab no: e = 1944 · A0 .2 / U0 .0 A: Thaj chaw ntawm cov qauv hauv mm2 U: Lub zog tensile tsawg kawg nkaus teev nyob rau hauv Mpa		Tsis muaj ib qho lossis ib qho lossis ob qho tib si ntawm lub zog cuam tshuam thiab thaj chaw shearing yog qhov 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

Ntxiv mus, qhov kev sib txuas ntawm cov kauv vuam ua kom muaj kev ua tau zoo heev uas tsis xau. Yog li ntawd, cov kav dej kauv vuam muab cov kav dej nyab xeeb rau kev thauj mus los roj thiab roj av, txo qhov kev pheej hmoo ntawm kev xau thiab kev phom sij ib puag ncig. Qhov no, ua ke nrog nws cov txiaj ntsig zoo ntawm kev ntws thiab kev ua haujlwm hydraulic zoo tshaj plaws, ua rau nws zoo tagnrho rau cov tuam txhab hluav taws xob uas tab tom nrhiav kev daws teeb meem txhim khu kev qha thiab ruaj khov.

Qhov ua tau ntau yam ntawm cov yeeb nkab vuam uas muaj kauv tsis yog tsuas yog siv rau kev thauj roj thiab roj av xwb. Nws txoj kev tsim kho muaj zog thiab kev ua haujlwm zoo heev ua rau nws siv tau rau ntau yam kev siv, suav nrog kev muab dej, cov txheej txheem ntws dej, thiab txawm tias cov haujlwm tsim kho vaj tse. Txawm hais tias siv los thauj cov kua lossis siv ua cov qauv txhawb nqa, cov yeeb nkab vuam uas muaj kauv zoo tshaj plaws hauv kev muab cov kev daws teeb meem txhim khu kev qha thiab pheej yig.

Kev qhia txog cov kav hlau txuas ua ke tau ua rau cov txheej txheem vuam yeeb nkab zoo dua qub, ua rau cov txheej txheem yooj yim dua thiab txo lub sijhawm ua haujlwm tag nrho. Kev teeb tsa yooj yim, ua ke nrog qhov sib piv ntawm lub zog thiab qhov hnyav, ua rau cov txheej txheem tsim kho yooj yim dua thiab ua haujlwm tau zoo dua. Qhov no txhais tau tias txuag tau nyiaj ntau rau cov nqi zog ua haujlwm, cov khoom siv xav tau thiab cov nuj nqis tswj hwm qhov project, thaum ua kom ntseeg tau tias zoo dua thiab siv tau ntev.

Xaus lus:

Hauv kev xaus lus, cov yeeb nkab vuam uas muaj kauv tau hloov pauv txoj kev vuam yeeb nkab, tshwj xeeb tshaj yog hauv kev lag luam roj thiab roj av. Nws txoj kev sib koom ua ke ntawm lub zog, kev ruaj khov, kev hloov pauv tau yooj yim thiab kev siv nyiaj tsim nyog ua rau nws zoo tagnrho rau cov tuam txhab fais fab uas tab tom nrhiav kev daws teeb meem txhim khu kev qha. Nrog rau kev siab zoo dua, kev tiv thaiv corrosion thiab kev xau, cov yeeb nkab hlau vuam uas muaj kauv mus dhau cov txheej txheem yeeb nkab ib txwm muaj los muab kev sib txuas ruaj khov thiab muaj kev nyab xeeb rau kev thauj mus los ntawm cov peev txheej tseem ceeb. Raws li kev lag luam kev tsim kho txuas ntxiv txais yuav kev nce qib hauv kev siv tshuab, cov yeeb nkab vuam uas muaj kauv tau dhau los ua pov thawj rau tib neeg lub tswv yim thiab kev tsim kho tshiab, qhia txog yav tom ntej ntawm kev ua haujlwm zoo, kev nyab xeeb thiab kev ntseeg siab.

Yav dhau los: Cov Kav Dej Welded Rau Cov Kav Dej Roj Ntuj

Tom ntej no: Kev Ua Kom Zoo Thiab Kev Ruaj Ntseg Ntawm Cov Kav Dej Tseem Ceeb Nrog Cov Kav Dej Sib Txuas

Sau koj cov lus ntawm no thiab xa tuaj rau peb