Qhov kev xaiv cov yeeb nkab hlau seamless yog qhov tseeb heev!

Cov kev cai rau kev xaiv cov kav hlau tsis muaj seamless rau kev thauj mus los kua dej uas feem ntau siv hauv peb txoj kev lag luam txheej txheem yog dab tsi? Saib cov ntsiab lus ntawm peb cov neeg ua haujlwm hauv cov kav dej siab:

Cov kav hlau tsis muaj qhov sib txuas yog cov kav hlau tsis muaj vuam uas tsim los ntawm cov txheej txheem kho kub xws li tho thiab dov kub.

Yog tias tsim nyog, cov yeeb nkab kho kub tuaj yeem rub txias ntxiv mus rau qhov zoo li cas, qhov loj me thiab kev ua tau zoo uas xav tau. Tam sim no, cov yeeb nkab hlau tsis muaj seamless (DN15-600) yog cov yeeb nkab siv dav tshaj plaws hauv cov khoom siv petrochemical.

(Ib) Cov Yeeb Nkab Hlau Carbon Seamless

Khoom Siv Hlau Qib: 10 #,20#,09MnV,16Mnhauv 4 hom

Tus Qauv:

GB8163 Cov Yeeb Nkab Hlau Tsis Muaj Qhov Txuas Rau Kev Pabcuam Kua

GB/T9711 Kev lag luam roj av thiab roj av - Cov yeeb nkab hlau rau cov kav dej thauj mus los

GB6479 Cov yeeb nkab hlau tsis muaj zog siab rau cov khoom siv chiv

GB9948 Cov yeeb nkab hlau tsis muaj seamless rau kev tawg roj av

GB3087 Seamless steel yeeb nkab rau qis thiab nruab nrab siab boiler

GB/T5310 Cov kav hlau tsis muaj seamless thiab cov kav dej rau cov boiler siab siab

GB/T8163: Khoom Siv Hlau Qib: 10#, 20#, Q345, thiab lwm yam.

Scope ntawm daim ntawv thov: roj, roj thiab roj av thiab pej xeem xov xwm uas nws tsim kub tsawg dua 350 ℃ thiab siab tsawg dua 10MPa.

GB6479: Khoom siv hlau Qib: 10 #, 20G, 16Mn, thiab lwm yam.

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

GB9948:

Khoom siv hlau Qib: 10 #, 20 #, thiab lwm yam.

Scope ntawm daim ntawv thov: lub sijhawm uas GB / T8163 steel yeeb nkab tsis haum.

GB3087:

Khoom siv hlau Qib: 10 #, 20 #, thiab lwm yam.

Scope ntawm daim ntawv thov: superheated chav thiab dej npau rau qis thiab nruab nrab siab boilers.

GB5310:

Khoom siv hlau Qib: 20G thiab lwm yam.

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

Kev Tshuaj Xyuas: Feem ntau cov kav hlau rau kev thauj mus los ntawm cov kua dej yuav tsum tau dhau los ntawm kev tshuaj xyuas cov tshuaj lom neeg, kev sim tensile, kev sim flattening thiab kev sim hydraulic. GB5310, GB6479, thiab GB9948 cov kav hlau txheem, ntxiv rau qhov kev sim uas yuav tsum tau ua rau cov kav hlau rau kev thauj mus los ntawm cov kua dej, kev sim flaring thiab kev sim cuam tshuam kuj tseem xav tau; cov kev cai tshuaj xyuas kev tsim khoom rau peb cov kav hlau no yog qhov nruj heev. Tus qauv GB6479 kuj ua rau muaj kev cai tshwj xeeb rau qhov kub qis cuam tshuam ntawm cov khoom siv. Ntxiv rau qhov kev cai kuaj dav dav ntawm cov kav hlau rau kev thauj mus los ntawm cov kua dej, cov kav hlau ntawm GB3087 tus qauv kuj xav tau kev sim khoov txias. GB/T8163 cov kav hlau txheem, ntxiv rau qhov kev cai kuaj dav dav rau cov kav hlau thauj mus los ntawm cov kua dej, raws li daim ntawv cog lus xav tau kev sim nthuav dav thiab kev sim khoov txias. Cov kev cai tsim khoom ntawm ob hom kav hlau no tsis nruj npaum li peb hom thawj zaug.

Kev Tsim Khoom: GB/T8163 thiab GB3087 cov kav hlau txheem feem ntau yog smelted hauv qhov cub qhib lossis lub converter, thiab lawv cov impurities thiab cov qhov tsis zoo sab hauv yog qhov loj heev. GB9948 feem ntau siv hluav taws xob cub smelting. Feem ntau ntawm lawv tau koom nrog cov txheej txheem refining sab nraum lub cub tawg, thiab cov khoom sib xyaw thiab cov qhov tsis zoo sab hauv yog qhov me me. Cov qauv GB6479 thiab GB5310 lawv tus kheej teev cov kev cai rau kev refining sab nraum lub cub tawg, nrog rau cov khoom sib xyaw tsawg tshaj plaws thiab cov qhov tsis zoo sab hauv, thiab cov khoom zoo tshaj plaws.

Kev Xaiv: Feem ntau, GB/T8163 tus qauv yeeb nkab hlau yog tsim rau roj, roj thiab roj av thiab cov xov xwm pej xeem nrog qhov kub tsim tsawg dua 350 ° C thiab qhov siab tsawg dua 10.0MPa; rau roj, roj thiab roj av xov xwm, thaum qhov kub tsim tshaj 350 ° C Los yog thaum qhov siab ntau dua 10.0MPa, GB9948 lossis GB6479 tus qauv yeeb nkab hlau yuav tsum tau siv; rau cov kav dej ua haujlwm hauv hydrogen, lossis cov kav dej ua haujlwm hauv qhov chaw muaj kev ntxhov siab corrosion, GB9948 lossis GB6479 tus qauv kuj yuav tsum tau siv. Txhua cov kav hlau carbon siv ntawm qhov kub qis (tsawg dua -20 ° C) yuav tsum tau txais tus qauv GB6479, thiab tsuas yog nws qhia txog qhov yuav tsum tau ua rau qhov kub qis cuam tshuam ntawm cov khoom siv. Cov qauv GB3087 thiab GB5310 yog cov qauv teeb tsa tshwj xeeb rau cov kav hlau boiler. Cov Cai "Kev Tswj Xyuas Kev Nyab Xeeb Boiler" hais tias txhua cov kav dej txuas nrog lub boiler yog nyob rau hauv qhov kev saib xyuas, thiab kev siv cov ntaub ntawv thiab cov qauv yuav tsum ua raws li cov kev cai ntawm "Kev Tswj Xyuas Kev Nyab Xeeb Boiler". Yog li ntawd, lawv siv rau hauv cov boilers, chaw tsim hluav taws xob, cua sov thiab cov chaw tsim khoom petrochemical. Txhua cov kav dej pa pej xeem (muab los ntawm lub kaw lus) yuav tsum tau txais cov qauv GB3087 lossis GB5310. Nws tsim nyog sau cia tias tus nqi ntawm cov kav dej hlau nrog cov qauv yeeb nkab hlau zoo yog qhov siab heev. Piv txwv li, tus nqi ntawm GB9948 yog ze li ntawm 1/5 siab dua tus nqi ntawm cov ntaub ntawv GB8163. Yog li ntawd, thaum xaiv cov qauv khoom siv yeeb nkab hlau, yuav tsum tau xav txog tag nrho rau cov xwm txheej ntawm kev siv, uas yuav tsum txhim khu kev qha thiab pheej yig. Nws kuj tseem yuav tsum tau sau tseg tias cov kav hlau raws li GB / T20801 thiab TSGD0001, GB3087 thiab GB8163 cov qauv yuav tsum tsis txhob siv rau GC1 cov kav dej (tshwj tsis yog ib qho los ntawm ib qho yog ultrasonic, qhov zoo tsis qis dua L2.5, thiab nws tuaj yeem siv rau GC1 nrog lub siab tsim tsis ntau dua 4.0Mpa kav dej).

（二）Cov yeeb nkab tsis tshua muaj hlau seamless steel yeeb nkab

Hauv cov khoom siv petrochemical, cov qauv yeeb nkab steel chromium-molybdenum feem ntau siv thiab chromium-molybdenum-vanadium steel seamless yog GB9948 "Seamless steel yeeb nkab rau roj av tawg" GB6479 "High-pressure seamless steel yeeb nkab rau cov khoom siv chiv" GB/T5310 "Seamless steel yeeb nkab rau lub boiler siab".》GB9948 muaj cov khoom siv hlau chromium-molybdenum qib: 12CrMo, 15CrMo, 1Cr2Mo, 1Cr5Mo, thiab lwm yam. Cov khoom siv hlau chromium-molybdenum qib suav nrog hauv GB6479: 12CrMo, 15CrMo, 1Cr5Mo, thiab lwm yam. GB/T5310 muaj cov hlau chromium molybdenum thiab cov khoom siv hlau chromium molybdenum vanadium qib: 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12Cr1MoVG, thiab lwm yam. Ntawm lawv, qhov feem ntau siv yog GB9948, saib saum toj no rau cov xwm txheej xaiv.

(Peb) Cov yeeb nkab tsis muaj hlau tsis muaj seamless

Cov qauv yeeb nkab steel seamless uas siv ntau yog:

Muaj tsib tus qauv: GB/T14976, GB13296, GB9948, GB6479, thiab GB5310. Ntawm lawv, tsuas yog ob lossis peb qib khoom siv hlau tsis xeb tau teev nyob rau hauv peb tus qauv kawg, thiab lawv tsis yog cov qib khoom siv feem ntau.

Yog li ntawd, thaum cov qauv yeeb nkab steel seamless siv rau hauv kev tsim kho vaj tse, GB / T14976 thiab GB13296 cov qauv feem ntau yog siv.

GB/T14976 "Cov yeeb nkab hlau tsis xeb rau kev thauj mus los ntawm cov kua dej":

Cov qib khoom siv: 304, 304L thiab lwm yam 19 hom yog tsim rau kev thauj mus los ntawm cov kua dej dav dav.

GB13296 "Cov kav hlau tsis xeb tsis muaj hlau rau cov boilers thiab cov khoom sib pauv cua sov":

Cov qib khoom siv: 304, 304L thiab lwm yam 25 hom.

Ntawm lawv, cov hlau tsis muaj carbon tsawg heev (304L, 316L) muaj kev tiv thaiv corrosion zoo heev. Hauv qee qhov xwm txheej, nws tuaj yeem hloov cov hlau tsis muaj hlau ruaj khov (321, 347) rau kev tiv thaiv corrosion rau cov xov xwm; cov hlau tsis muaj carbon tsawg heev muaj cov khoom siv kho tshuab kub qis, feem ntau tsuas yog siv ntawm qhov kub qis dua 525 ℃; cov hlau tsis muaj carbon ruaj khov muaj ob qho tib si corrosion zoo thiab kub siab, tab sis Ti hauv 321 yooj yim oxidized thiab ploj thaum vuam, yog li txo nws cov kev ua haujlwm tiv thaiv corrosion, nws tus nqi yog qhov siab, hom khoom no feem ntau siv rau hauv cov sijhawm tseem ceeb dua, 304, 316 muaj kev ua haujlwm tiv thaiv corrosion dav dav, tus nqi pheej yig, yog li nws tau siv dav.