Cov txiaj ntsig ntawm Ob Chav Submerged Arc Welded Gas Line Pipe

Kev Piav Qhia Luv:

Txais tos rau Cangzhou Spiral Steel Pipe Group Co., Ltd., ib lub tuam txhab tsim khoom thiab muab cov kav hlau carbon zoo uas muaj cov hlau sib txuas ua ke. Peb lub tuam txhab zoo siab siv cov thev naus laus zis tshiab uas ua rau cov kav hlau sib txuas ua ke zoo rau ntau yam kev siv.

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Cov Khoom Qhia Txog Khoom

Cov Cim Npe Khoom

Hauv ntiaj teb ntawm kev siv dej, muaj ntau txoj kev tsim kho thiab cov ntaub ntawv. Ib txoj kev sib koom ua ke ntawm cov yeeb nkab nrov yog kev vuam ob chav kawg (DSAW). Cov txheej txheem no feem ntau siv rau ntawm cov kav roj thiab dej, thiab rau qhov laj thawj zoo. Hauv cov blog no peb yuav tshawb nrhiav qhov zoo ntawm kev sivob chav submerged arc weldedcov kav dej hauv cov ntawv thov no.

Cov Khoom Siv Mechanical ntawm SSAW yeeb nkab

qib hlau	lub zog tsawg kawg nkaus Mpa	tsawg kawg nkaus Tensile zog Mpa	Qhov Ntev Tsawg Kawg Nkaus %
B	245	415	23
X42	290	415	23
X46	320	435	22
X52	360	460	21
X56	390	490	19
X60	415	520	18
X65	450	535	18
X70	485	570	17

Cov tshuaj lom neeg muaj pes tsawg leeg ntawm cov kav dej SSAW

qib hlau	C	Mn	P	S	V+Nb+Ti
	Qhov siab tshaj plaws %	Qhov siab tshaj plaws %	Qhov siab tshaj plaws %	Qhov siab tshaj plaws %	Qhov siab tshaj plaws %
B	0.26	1.2	0.03	0.03	0.15
X42	0.26	1.3	0.03	0.03	0.15
X46	0.26	1.4	0.03	0.03	0.15
X52	0.26	1.4	0.03	0.03	0.15
X56	0.26	1.4	0.03	0.03	0.15
X60	0.26	1.4	0.03	0.03	0.15
X65	0.26	1.45	0.03	0.03	0.15
X70	0.26	1.65	0.03	0.03	0.15

Qhov Geometric tolerance ntawm cov kav dej SSAW

Kev kam rau siab ntawm geometric
sab nraud txoj kab uas hla		Phab ntsa tuab		kev ncaj ncees		tsis sib npaug		pawg neeg	Qhov siab tshaj plaws ntawm cov hlaws weld
D		T
≤1422 hli	> 1422 hli	<15 hli	≥15 hli	qhov kawg ntawm cov yeeb nkab 1.5m	ntev tag nrho	lub cev yeeb nkab	qhov kawg ntawm cov yeeb nkab		T≤13 hli	T> 13 hli
±0.5% ≤4 hli	raws li tau pom zoo	±10%	±1.5 hli	3.2 hli	0.2% L	0.020D	0.015D	+10% -3.5%	3.5 hli	4.8 hli

Kev Ntsuas Hydrostatic

cov lus piav qhia txog khoom1

Cov yeeb nkab yuav tsum tiv taus qhov kev sim hydrostatic yam tsis muaj qhov xau los ntawm cov weld seam lossis lub cev yeeb nkab
Cov khoom sib koom ua ke tsis tas yuav tsum tau kuaj hydrostatically, tsuav yog cov feem ntawm cov yeeb nkab siv los cim cov khoom sib koom ua ke tau raug kuaj hydrostatically ua ntej kev ua haujlwm sib koom ua ke.

Ua ntej, kev vuam ob chav submerged arc yog ib txoj kev zoo thiab pheej yig rau kev sib txuas cov kav dej. Cov txheej txheem no suav nrog kev tsim ib qho kev vuam los ntawm kev muab cov kav dej rau hauv cov kua dej granular siv ob lub vuam arcs. Qhov no tsim ib qho kev vuam ruaj khov thiab ruaj khov uas tuaj yeem tiv taus siab thiab nruj, ua rau nws zoo tagnrho rau cov kav roj thiab dej.

Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm ob chav submerged arc welded yeeb nkab yog nws txoj kev tiv thaiv corrosion. Cov granular flux siv rau hauv cov txheej txheem vuam no tsim ib txheej tiv thaiv hla qhov vuam, pab tiv thaiv kev xeb thiab ntev lub neej ntawm cov yeeb nkab. Qhov no yog qhov tseem ceeb tshwj xeeb raucov kab dej, vim nws ua kom cov dej xa tuaj huv si thiab tsis muaj kuab paug.

Ntxiv rau qhov tiv taus xeb, ob chav submerged arc welded kav dej muaj cov khoom siv kho tshuab zoo heev. Txoj kev no tsim cov vuam sib xws thiab cov kav dej muaj zog thiab txhim khu kev qha. Qhov no yog qhov tseem ceeb rau cov kav dej roj av vim nws ua kom muaj kev nyab xeeb thiab ua haujlwm tau zoo ntawm cov roj av yam tsis muaj kev pheej hmoo ntawm kev xau lossis kev ua tsis tiav.

Tsis tas li ntawd xwb, cov kav dej uas vuam ob txheej uas muab dej tso rau hauv qab av tuaj yeem tiv taus qhov kub thiab txias heev thiab tej yam ib puag ncig. Qhov no ua rau lawv zoo tagnrho rau kev siv rau ntawm ntug dej hiav txwv thiab ntug dej hiav txwv uas yuav raug rau huab cua hnyav thiab tej yam kev ua haujlwm. Rau cov kav dej, qhov kev ruaj khov no ua kom cov kav dej tuaj yeem txav dej tau zoo yam tsis muaj kev cuam tshuam rau kev ua haujlwm.

Lwm qhov zoo ntawm kev siv cov yeeb nkab uas vuam ob chav hauv qab dej yog tias nws qhov chaw du thiab zoo nkauj. Qhov no ua rau lawv yog qhov kev xaiv zoo rau kev teeb tsa saum toj thiab hauv av, vim lawv yooj yim los tshuaj xyuas thiab tswj. Tsis tas li ntawd, qhov chaw du ntawm qhov vuam txo qhov kev sib txhuam thiab kev poob siab hauv cov yeeb nkab, pab txhim kho kev ua haujlwm ntawm cov roj thiab cov dej xa mus.

Hauv kev xaus lus, ob chav submerged arc welded yeeb nkab yog qhov kev xaiv zoo heev raucov yeeb nkab rojthiab cov kav dej. Nws cov txheej txheem vuam zoo thiab pheej yig, ua ke nrog kev tiv thaiv corrosion, cov khoom siv kho tshuab zoo heev, kev ruaj khov thiab kev zoo nkauj, ua rau nws yog thawj qhov kev xaiv rau kev tsim cov kav dej. Txawm hais tias thauj cov roj av lossis dej, cov kav dej no muab lub zog thiab kev ntseeg siab uas xav tau los ua haujlwm kom muaj kev nyab xeeb thiab ua haujlwm tau zoo. Nws yog qhov tseeb tias ob txheej submerged arc welded yeeb nkab yog ib qho khoom muaj nqis hauv ntiaj teb kev tsim cov kav dej.

Yav dhau los: Cov Yeeb Nkab Uas Muaj Kauv Sib Nraus Hauv Av API 5L Kab Yeeb Nkab Siv

Tom ntej no: Cov Zoo ntawm Kev Siv Cov Kav Dej Hlau Uas Muaj Kauv Sib Nraus Rau Cov Kav Dej Hauv Av

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