Seamless steel yeeb nkab yog tsim tsis muaj vuam los ntawm kev ua haujlwm kub xws li perforated kub dov.Yog tias tsim nyog, cov kav dej kub ua haujlwm tuaj yeem ua haujlwm txias ntxiv rau qhov xav tau, qhov loj me thiab kev ua haujlwm.Tam sim no, seamless steel yeeb nkab yog cov yeeb nkab siv ntau tshaj plaws hauv cov khoom siv petrochemical.

(1)Carbon steel seamless steel yeeb nkab 

Cov khoom siv qib: 10, 20, 09MnV, 16Mn 4 yam hauv tag nrho

Txuj: GB8163 "Seamless steel yeeb nkab rau kev thauj mus los"

GB / T9711 "Oil thiab natural gas kev lag luam steel yeeb nkab xa cov txheej txheem"

wb 6479“Kev kub siab seamless steel yeeb nkab rau cov khoom siv chiv“

wb 9948"Seamless steel yeeb nkab rau roj av tawg"

wb 3087"Seamless steel raj rau qis thiab nruab nrab siab boilers"

GB / T5310“Seamless steel raj rau kev kub siab boilers“

GB / T8163:

Khoom siv: 10, 20,q345 ua, lwm.

Scope ntawm daim ntawv thov: tsim kub tsawg dua 350 ℃, siab yog tsawg dua 10MPa roj, roj thiab pej xeem nruab nrab

wb 6479:

Cov khoom siv qib: 10, 20G, 16Mn, thiab lwm yam.

Scope ntawm daim ntawv thov: roj thiab roj nrog tsim kub ntawm -40 ~ 400 ℃ thiab tsim siab ntawm 10.0 ~ 32.0MPa

wb 9948:

Cov khoom siv qib: 10, 20, thiab lwm yam.

Scope ntawm daim ntawv thov: tsis haum rau GB / T8163 steel yeeb nkab zaus.

wb 3087:

Cov khoom siv qib: 10, 20, thiab lwm yam.

Scope ntawm daim ntawv thov: qis thiab nruab nrab siab boiler superheated chav, boiling dej, thiab lwm yam.

GB5310:

Cov khoom siv qib: 20G, thiab lwm yam.

Scope ntawm daim ntawv thov: superheated chav nruab nrab ntawm kev kub siab boiler

Kev tshuaj xyuas: tshuaj lom neeg muaj pes tsawg leeg, kev ntsuas nro, kev sim flattening thiab ntsuas dej siab yuav tsum tau nqa tawm ntawm cov yeeb nkab steel siv rau kev thauj mus los dav dav.

GB5310, wb 6479, wb 9948peb hom qauv steel yeeb nkab, ntxiv rau lub raj xa dej yuav tsum tau sim, tab sis kuj yuav tsum tau ua kom tiav qhov kev sim flaring thiab qhov kev sim;Kev tshuaj xyuas kev tsim khoom ntawm peb hom steel kav no yog nruj heev.

wb 6479tus qauv kuj ua rau tshwj xeeb uas yuav tsum tau rau qhov kub tsis tshua muaj kev cuam tshuam toughness ntawm cov ntaub ntawv.

GB3087 tus qauv steel yeeb nkab, ntxiv rau qhov kev sim dav dav rau kev thauj cov kua dej steel yeeb nkab, tab sis kuj yuav tsum tau ntsuas qhov ntsuas txias.

GB / T8163 tus qauv steel yeeb nkab, ntxiv rau cov kev ntsuas dav dav rau cov dej thauj cov yeeb nkab steel, raws li qhov yuav tsum tau muaj ntawm daim ntawv cog lus kom ua tiav cov kev sim flaring thiab txias dabtsi yog khoov test.Qhov kev tsim khoom ntawm ob hom kav dej no tsis nruj li. raws li cov thawj peb hom.

Kev tsim khoom: GB / T / 8163 thiab GB3087 tus qauv steel yeeb nkab txais yuav qhib rauv lossis hloov pauv smelting, nws cov impurities thiab qhov tsis xws luag yog ntau dua.

wb 9948hluav taws xob rauv smelting.Feem ntau yog ntxiv rau qhov cub ua kom zoo dua cov txheej txheem nrog ob peb cov khoom xyaw thiab cov khoom siv sab hauv.

wb 6479thiabGB5310cov qauv lawv tus kheej qhia cov kev cai rau kev ua kom zoo rau sab nraum lub qhov cub, nrog rau qhov tsawg kawg nkaus impurities thiab sab hauv tsis xws luag thiab cov khoom zoo tshaj plaws.

Cov saum toj no ob peb steel yeeb nkab qauv yog tsim nyob rau hauv kev txiav txim ntawm zoo los ntawm qis mus rau siab:

GB/T8163wb 3087＜wb 9948＜GB5310＜wb 6479

Kev xaiv: nyob rau hauv ib txwm muaj xwm txheej, GB / T8163 tus qauv steel yeeb nkab haum rau qhov tsim kub yog tsawg dua 350 ℃, siab tsawg dua 10.0mpa roj cov khoom, roj thiab roj thiab cov pej xeem nruab nrab;

Rau cov khoom siv roj, roj thiab roj nruab nrab, thaum tus qauv tsim kub ntau dua 350 ℃ lossis siab dua 10.0mpa, nws tsim nyog xaivwb 9948 or wb 6479txheem steel yeeb nkab;

wb 9948 or wb 6479tus qauv tseem yuav tsum tau siv rau cov kav dej ua haujlwm ze hydrogen lossis hauv qhov chaw muaj kev ntxhov siab corrosion.

Kev ntsuas kub tsis tshua muaj (tsawg dua -20 ℃) ​​siv cov pa roj carbon steel yeeb nkab yuav tsum tau sivwb 6479tus qauv, tsuas yog nws qhia txog qhov yuav tsum tau muaj ntawm qhov kub thiab txias cuam tshuam toughness ntawm cov ntaub ntawv.

GB3087 ibGB5310cov qauv tsim tshwj xeeb rau boiler steel yeeb nkab qauv."Boiler kev saib xyuas kev nyab xeeb cov cai" tau hais tias txhua qhov kev sib txuas nrog cov raj boiler yog nyob rau ntawm kev saib xyuas, kev siv cov khoom siv thiab cov qauv yuav tsum ua raws li cov cai ntawm kev nyab xeeb ntawm boiler, yog li ntawd, boiler, fais fab chaw nres tsheb, cua sov thiab petrochemical ntau lawm. cov khoom siv hauv pej xeem cov yeeb nkab yuav tsum tau siv (los ntawm qhov system muab) GB3087 lossis tus qauvGB5310.

Nws yog ib qho tsim nyog sau cia tias qhov zoo ntawm cov qauv steel yeeb nkab zoo, cov yeeb nkab steel nqi kuj yog siab, xws liwb 9948tshaj GB8163 cov khoom siv tus nqi yog ze li ntawm 1/5, yog li ntawd, hauv kev xaiv cov khoom siv steel yeeb nkab qauv, yuav tsum tau txiav txim siab raws li kev siv, ob qho tib si txhim khu kev qha thiab kev lag luam.Nws yuav tsum tau muab sau tseg tias steel tubes raws li GB / T20801 thiab TSGD0001, GB3087 thiab GB8163 yuav tsum tsis txhob siv nyob rau hauv GC1 piping (tshwj tsis yog tus kheej ultrasonic, zoo tsis tsawg tshaj li L2.5, yuav siv tau nyob rau hauv GC1 (1) piping design. siab tsis siab tshaj 4.0Mpa).

(2) Tsawg alloy steel seamless steel yeeb nkab

Hauv cov chaw tsim khoom petrochemical, feem ntau siv seamless steel yeeb nkab qauv ntawm chromium-molybdenum steel thiab chromium-molybdenum vanadium steel yog

GB9948 "Seamless steel yeeb nkab rau roj av tawg“

GB6479 "Kev kub siab seamless steel yeeb nkab rau cov khoom siv chiv“

GB / T5310 "Seamless steel raj rau kev kub siab boilers“

wb 9948muaj chromium molybdenum steel qib: 12CrMo, 15CrMo, 1Cr2Mo, 1Cr5Mo thiab lwm yam.

wb 6479muaj chromium molybdenum steel qib: 12CrMo, 15CrMo, 1Cr5Mo thiab lwm yam.

GB / T5310muaj chromium-molybdenum steel thiab chromium-molybdenum vanadium steel cov ntaub ntawv qib: 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12Cr1MoVG, thiab lwm yam.

Ntawm lawv,wb 9948yog siv ntau dua.