Ob Chav Submerged Arc Welded Pipes Rau Kev Txhim Kho Kev Ncaj Ncees

Kev Piav Qhia Luv:

Qhov no ntawm Cov Txheej Txheem European no qhia txog cov xwm txheej kev xa khoom rau cov khoom siv vuam txias, cov seem hollow ntawm cov duab voj voog, square lossis rectangular thiab siv rau cov seem hollow tsim txias yam tsis muaj kev kho cua sov tom qab.

Cangzhou Spiral Steel Pipes Group Co., Ltd muab cov kav hlau hollow rau cov qauv.

Xa email rau peb

Cov Khoom Qhia Txog Khoom

Cov Cim Npe Khoom

Taw qhia:

Hauv kev tsim kho vaj tse, qhov tseem ceeb ntawm kev siv cov ntaub ntawv zoo thiab cov txheej txheem tsim kho tsis tuaj yeem hais ntau dhau. Ntawm ntau yam khoom siv hauv cov haujlwm tsim kho, cov kav dej ua lub luag haujlwm tseem ceeb. Peb yuav qhia meej txog qhov tseem ceeb ntawm cov kav dej ob chav vuam thiab tshawb nrhiav lawv cov yam ntxwv, cov txiaj ntsig thiab lawv tuaj yeem pab txhim kho kev ruaj khov ntawm cov qauv.

Kawm txog cov kav dej ob chav welded:

Ob chav welded yeeb nkab, tseem hu ua ob chav submerged arc welded yeeb nkab (Cov Kav Dej DSAW), yog tsim los ntawm kev siv cov txheej txheem vuam submerged arc. Cov thev naus laus zis no cuam tshuam nrog kev sib txuas ob lub phaj hlau sib cais, muab kev sib txuas ruaj khov thiab txuas ntxiv mus. Cov kav dej no feem ntau yog siv rau hauv cov ntawv thov siab, cov kav dej hauv av thiab cov roj av, kev tshawb nrhiav roj, thiab cov chaw ua haujlwm hauv hiav txwv.

Khoom Siv Kho Tshuab

qib hlau	lub zog tsawg kawg nkaus Mpa		Lub zog tensile		Qhov ntev tsawg kawg nkaus %	Lub zog cuam tshuam tsawg kawg nkaus J
qib hlau	Qhov tuab uas tau teev tseg mm		Qhov tuab uas tau teev tseg mm		Qhov tuab uas tau teev tseg mm	ntawm qhov kub thiab txias ntawm
	<16	> 16≤40	<3	≥3≤40	≤40	-20 ℃	0℃	20 ℃
S235JRH	235	225	360-510	360-510	24	-	-	27
S275J0H	275	265	430-580	410-560	20	-	27	-
S275J2H	275	265	430-580	410-560	20	27	-	-
S355J0H	365	345	510-680	470-630	20	-	27	-
S355J2H						27	-	-
S355K2H						40	-	-

Txhim kho kev ruaj khov ntawm cov qauv:

Qhov laj thawj tseem ceeb rau kev sivob chav welded yeeb nkabyog lawv lub peev xwm los txhim kho kev ruaj khov ntawm cov qauv. Nrog rau kev sib txuas zoo thiab muaj zog, cov kav dej no muaj kev tiv taus kev ntxhov siab thiab kev ruaj khov zoo dua. Kev sib txuas ob zaug ua kom cov kav dej tuaj yeem tiv taus cov qib siab dua, ua rau nws zoo tagnrho rau cov ntawv thov tseem ceeb uas ib qho kev sib txuas yuav ua rau muaj kev nyab xeeb ntawm cov qauv. Cov txheej txheem sib txuas ob zaug no tshem tawm qhov ua tau ntawm kev xau lossis tawg, ua kom ntseeg tau tias koj lub cev kav dej muaj kev ntseeg siab mus sij hawm ntev.

Lub zog siab dua rau qhov hnyav piv:

Cov yeeb nkab uas vuam ob txheej muaj qhov sib piv ntawm lub zog thiab qhov hnyav zoo heev. Vim yog cov txheej txheem vuam, cov yeeb nkab no tau txo qhov tuab ntawm phab ntsa thiab sib dua thaum tseem tswj tau qhov ruaj khov ntawm cov qauv. Qhov sib piv ntawm lub zog thiab qhov hnyav no txo qhov hnyav tag nrho ntawm cov qauv txhawb nqa, ua rau nws yog qhov kev daws teeb meem pheej yig rau cov haujlwm loj xws li choj, pej thuam, thiab cov tsev siab.

Kev tiv thaiv xeb:

Lwm qhov zoo ntawm cov yeeb nkab uas vuam ob txheej yog nws txoj kev tiv taus xeb. Lub foob vuam nruj ua rau muaj kev thaiv zoo tiv thaiv cov yam sab nraud, suav nrog cov dej noo, tshuaj lom neeg thiab cov av. Qhov no tiv thaiv sab hauv ntawm cov yeeb nkab kom tsis txhob kov cov neeg ua haujlwm xeb, ua kom lub neej ua haujlwm ntev dua piv rau cov yeeb nkab ib txwm muaj. Cov yam ntxwv tiv taus xeb ntawm cov yeeb nkab no yog qhov tshwj xeeb tshaj yog rau kev lag luam roj thiab roj av, qhov twg cov yeeb nkab feem ntau ntsib cov xwm txheej hnyav.

Cov Tshuaj Lom Zem

Qib hlau		Hom de-oxidation a	% los ntawm pawg, siab tshaj plaws
Lub npe hlau	Tus lej hlau	C	C	Si	Mn	P	S	Nb
S235JRH	1.0039	FF	0,17	—	1,40	0,040	0,040	0.009
S275J0H	1.0149	FF	0,20	—	1,50	0,035	0,035	0,009
S275J2H	1.0138	FF	0,20	—	1,50	0,030	0,030	—
S355J0H	1.0547	FF	0,22	0,55	1,60	0,035	0,035	0,009
S355J2H	1.0576	FF	0,22	0,55	1,60	0,030	0,030	—
S355K2H	1.0512	FF	0,22	0,55	1,60	0,030	0,030	—
a. Txoj kev deoxidation yog raws li nram no: FF: Cov hlau uas tua tag nrho uas muaj cov khoom sib txuas nrog nitrogen txaus kom sib txuas nrog nitrogen tau (piv txwv li tsawg kawg 0,020% tag nrho Al lossis 0,015% soluble Al). b. Tus nqi siab tshaj plaws rau nitrogen tsis siv yog tias cov tshuaj lom neeg qhia tias muaj tsawg kawg nkaus Al tag nrho cov ntsiab lus ntawm 0,020% nrog qhov tsawg kawg nkaus Al/N piv ntawm 2:1, lossis yog tias muaj lwm cov ntsiab lus N-binding txaus. Cov ntsiab lus N-binding yuav tsum tau sau tseg rau hauv Daim Ntawv Tshuaj Xyuas.

Cov yam ntxwv ntawm kev khiav tsheb zoo:

Qhov du thiab tsis muaj kev cuam tshuam sab hauv ntawm cov yeeb nkab ob chav vuam ua rau muaj cov yam ntxwv ntws zoo. Tsis zoo li lwm hom yeeb nkab uas muaj cov khoom tawm sab hauv lossis cov khoom thaiv, cov yeeb nkab no ua kom cov kua lossis roj ntws tas mus li thiab sib npaug, yog li txo qhov kev poob ntawm kev sib txhuam. Cov yam ntxwv ntws zoo ntawm cov yeeb nkab ob chav vuam pab ua kom zoo dua ntawm ntau yam txheej txheem kev lag luam, suav nrog cov chaw tsim khoom petrochemical, cov chaw ua dej thiab cov chaw kho dej.

Xaus lus:

Xaus lus, cov yeeb nkab vuam ob chav yog ib qho tseem ceeb uas ua rau cov qauv ntawm ntau yam kev tsim kho zoo dua. Lawv cov yam ntxwv tshwj xeeb, suav nrog kev vuam tsis muaj qhov sib txuas, qhov sib piv ntawm lub zog thiab qhov hnyav siab dua, kev tiv thaiv corrosion thiab kev ntws zoo, ua rau lawv yog thawj qhov kev xaiv rau cov ntawv thov uas xav tau kev ntseeg siab, kev ruaj khov thiab kev siv nyiaj tsawg. Los ntawm kev siv cov yeeb nkab vuam ob chav, cov engineers thiab cov neeg cog lus tuaj yeem ua kom muaj kev ua haujlwm ntev thiab muaj kev nyab xeeb ntawm cov khoom siv tseem ceeb, ua rau nws yog ib qho khoom muaj nqis hauv kev tsim kho thiab kev tsim kho.

Hauv kev xaus lus, S235 J0 kauv hlau yeeb nkab muab qhov zoo thiab ruaj khov tsis muaj qhov sib piv rau kojlub raj xa dej loj uas vuamecov kev xav tau. Nrog lawv cov txheej txheem tsim khoom siab heev, kev vuam zoo tshaj plaws thiab kev tshuaj xyuas zoo, peb cov khoom tau lees tias yuav tshaj qhov koj xav tau. Ntseeg Cangzhou Spiral Steel Pipe Group Co., Ltd.'s kev txawj ntse thiab kev paub dhau los kom tau raws li tag nrho koj cov yeeb nkab steel xav tau.