Vim li cas tus qauv tseem ceeb
Ib tug yeeb nkab txheem txhais cov tshuaj muaj pes tsawg leeg, mechanical zog, qhov ntev, kam rau ua, kev ntsuam xyuas thiab cim cov khoom. Kev txiav txim tawm tsam tus qauv lees paub ua kom ntseeg tau tias cov yeeb nkab tuaj yeem siv rau hauv cov cai- qauv tsim, uas daim ntawv pov thawj zeb tuaj yeem txheeb xyuas tau, thiab cov khoom siv sib hloov tau hauv kev saib xyuas thiab kho. Kev sib xyaw cov qauv yam tsis tau txheeb xyuas qhov sib npaug tuaj yeem ua rau qhov sib npaug lossis cov khoom tsis sib haum ntawm flanges, fittings thiab welds.
Main International Standards
Cov lus piav qhia cov qauv feem ntau siv rau cov pa roj carbon steel yeeb nkab thiab lawv cov kev pabcuam raug.
| Txuj | Yam khoom Scope | Hom Kev Pabcuam |
|---|---|---|
| ASTM A106 1 | Seamless carbon steel yeeb nkab | Siab - kub thiab siab - kev pabcuam siab |
| ASTM A53 | Seamless thiab welded carbon steel yeeb nkab | General siab, dej, cua thiab chav piping |
| API 5L | Seamless thiab welded kab yeeb nkab, qib B txog X80 | Roj thiab roj xa mus kav |
| ASTM A333 Cov khoom lag luam | Seamless thiab welded qis -kub yeeb nkab | Kev pabcuam txias rau -45 txog -195 degrees Celsius los ntawm qib |
| TS EN 10216-1 | Seamless raj rau lub hom phiaj siab, tsis yog - alloy | European siab piping, successor rau DIN 1629 |
| JIS G3454 | Carbon steel yeeb nkab rau kev pabcuam siab, STPG | Japanese siab piping |
| GB/T 8163 | Seamless yeeb nkab rau kev pabcuam dej | Suav dav dav dej piping |
Seamless vs Welded yeeb nkab
Txoj kev tsim khoom yog qhov kev xaiv thawj zaug. Seamless yeeb nkab yog pierced los ntawm ib tug khoom billet, yog li nws tsis muaj longitudinal weld thiab muaj lub zog tsis sib xws nyob ib ncig ntawm lub voj voog, uas haum rau kev kub siab, kub siab thiab cyclic loading. Welded yeeb nkab yog tsim los ntawm phaj los yog sawb thiab koom nrog hluav taws xob tsis kam vuam lossis submerged arc vuam; nws yog kev lag luam ntau dua, muaj nyob rau hauv cov kab loj dua, thiab zoo kawg nkaus txaus rau kev pabcuam siab qis thiab nruab nrab thaum lub vuam raug tshuaj xyuas raws li tus qauv.
| Kev sib piv | Seamless | Welded |
|---|---|---|
| Hom qauv | ASTM A106, EN 10216, GB / T 8163 | ASTM A53, API 5L, GB / T 3091 |
| Txoj kab uas hla | Txog li 24 ntiv tes | Mus txog 60 nti thiab tshaj |
| Nqi | Siab dua ib 'meter' | Tsawg dua ib 'meter' |
| Lub zog uniformity | Uniform ncig lub voj voog | Weld cheeb tsam yuav tsum tau soj ntsuam thiab kuaj |
Yuav Xaiv Txoj Cai Li Cas
Pib los ntawm cov kev pab cuam. Rau siab - kub thiab siab - siab chav dej, dej los yog hydrocarbons, qhia ASTM A106 Qib B lossis EN 10216-2 nrog rau qib tsim nyog. Rau cov kav dej dav dav ntawm qhov siab nruab nrab, ASTM A53 Qib B lossis GB / T 8163 txaus. Rau cov roj thiab cov kav dej, siv API 5L nrog rau qib uas yuav tsum tau muaj, PSL thiab kev xa khoom. Rau kev pabcuam kub qis, siv ASTM A333 nrog qib sib npaug rau qhov ntsuas kub tsim. Rau kev siv cov txheej txheem lossis kev siv tshuab, siv ASTM A500 lossis A519 tsis yog tus qauv siab. Qhia tus qauv, qib, qhov loj me, phab ntsa thickness thiab qhov yuav tsum tau ua ntawm txhua qhov kev txiav txim.
Kev Ntseeg Tsis Zoo
ASTM A53 tsis yog qhov qis - qhov ntsuas kub; Kev pabcuam txias yuav tsum tau ASTM A333. ASTM A106 thiab A53 Qib B zoo sib xws hauv chemistry tab sis A106 yog seamless nkaus xwb thiab suav nrog siab - ntsuas qhov ntsuas kub. API 5L Qib B yog ze rau A106 Qib B hauv ntau lub zog tab sis yog npaj rau kab yeeb nkab, tsis yog rau boiler lossis refinery piping. DIN 1629 tau hloov pauv hauv Tebchaws Europe los ntawm EN 10216-1, yog li cov haujlwm tshiab nyob sab Europe yuav tsum siv EN tus qauv. Thaum kawg, tus qauv tus lej ib leeg tsis txhais cov khoom siv tag nrho; cov qib thiab cov ntawv yuav tsum tau sau ib txwm hais.
FAQ
Dab tsi yog tus qauv tshaj plaws rau carbon steel yeeb nkab?
ASTM A106 Qib B rau seamless siab - kev pabcuam kub thiab ASTM A53 Qib B rau cov kav dej dav dav thiab seamless yog cov lus tshaj tawm thoob ntiaj teb.
Dab tsi yog qhov txawv ntawm ASTM A106 thiab A53?
A106 yog seamless yeeb nkab rau siab - qhov kub thiab txias kev pab cuam nrog rau kev kuaj ntxiv, thaum A53 npog ob qho tib si welded thiab seamless yeeb nkab rau kev pabcuam siab.
Cov txheej txheem twg yog siv rau cov kav dej thiab roj?
API 5L, nrog rau qib B txog X80 thiab PSL1 lossis PSL2 yuav tsum nyob ntawm qhov kev pabcuam hnyav.
Suav tus qauv rau carbon steel kua yeeb nkab yog dab tsi?
GB/T 8163 npog seamless yeeb nkab rau cov kev pab cuam dej dav dav, thiab GB/T 3091 npog welded yeeb nkab rau qis - siab ua kua.
Yog welded yeeb nkab muaj zog li seamless yeeb nkab?
Welded yeeb nkab tuaj yeem ua tau raws li qhov kev xav tau zoo ib yam thiab tensile qhov yuav tsum tau ua thaum lub vuam yog suab, tab sis qhov chaw vuam yuav tsum tau kuaj xyuas thiab cov yeeb nkab feem ntau txwv kom qis dua - siab, tsis yog - kev pabcuam cyclic.
Kuv yuav tsum siv tus qauv dab tsi rau qis -tej kav dej kub?
ASTM A333, xaiv cov qib los ntawm qhov ntsuas qhov tsawg kawg nkaus: Qib 1 lossis 6 rau -45 degrees Celsius, Qib 3 rau -101 degrees Celsius thiab Qib 8 rau -195 degrees Celsius.