Cov ntsiab lus tseem ceeb ntawm ASTM A333 tus qauv yog dab tsi?
ASTM A333 sawv rau "Txheem tshwj xeeb rau seamless thiab welded steel yeeb nkab rau tsawg- kev pab kub." Cov qauv no them cov qib ntau cov qib (qib 1 txog 11), uas Gr.7 yog ib qho. Tus qauv feem ntau qhia txog cov tshuaj lom neeg muaj ntau yam, cov cuab yeej siv kub (xws li cov kev ntsuas kub thiab kev ntsuas kub (xws li kev ntsuas kub), piv txwv li cov kev cai kub rau txhua tus ntawm cov yeeb nkab steel. Nws muab cov txheej txheem sib koom ua ke thiab cov qauv ua kom zoo rau cov tuam ntxhab, cov neeg yuav khoom, thiab cov chaw ua haujlwm soj ntsuam.
Dhau li Astm A333, dab tsi lwm cov qauv siv rau Gr.7 cov yeeb nkab steel?
Ua tiav qhov project feem ntau cuam tshuam nrog ntau yam qauv. Rau cov ntaub ntawv muaj kuab, xa mus rau ATTM A1016 (cov kev cai dav dav rau cov yeeb nkab steel). Pipeline design and installation must comply with ASME B31.3 (Process Piping) or B31.4/B31.8 (Oil and Gas Pipelines). Cov qauv no qhia kom muaj kev ntxhov siab, cov ntaub ntawv zoo, thiab lwm yam yuav tsum tau ua. Vuam, Aws D1.1 (Steel qauv qauv vuam) thiab ASME Seem IX (kev tsim nyog ntawm vuam thiab brazing), tseem npog. Kev tshuaj xyuas, ASME Ntu V (Nondestructive Testing), yog qhov yuav tsum tau ua. Ua ke, cov qauv no ib lub moj khaum tsis muaj zog, zoo nkauj txhua yam los ntawm cov khoom tsim rau cov ntawv thov engineering rau cov ntawv thov engineering.
Dab tsi yog qhov sib txawv thiab kev sib txuas ntawm ASTM A333 Gr.7 thiab ASME SA333 GR.7?
ASTM A333 thiab ASME SA333 yog ze li ntawm cov ntsiab lus txuj ci, nrog lawv cov ntsiab lus sib txawv tshwm sim los ntawm lawv cov xwm txheej raug cai thiab daim ntawv thov kev cai lij choj. ASTM, Asmeskas haiv neeg rau kev sim thiab cov ntaub ntawv, yog ib qho cuab yeej siv tshuab khoom siv. ASME, ntawm qhov tod tes, yog haiv neeg Asmeskas ntawm cov neeg kho tshuab cov qauv. Thaum A333 tau saws los ntawm lub asme boiler thiab siab hlab ntsha code, nws tau ua Sa333. Rau siab - muaj cov cuab yeej siv, tshwj xeeb hauv Tebchaws Asmeskas, tus qauv Asme yog yuav tsum tau ua. SA333 yog, hauv qhov kev txiav txim siab raws cai, qhov sib npaug ntawm A333. Nyob rau hauv cov nqe lus ntawm cov tshuaj muaj kuab lom, cov khoom siv mechanies, thiab lwm yam kev xav tau, ob qho tau txiav txim siab sib npaug.
A3333 Gr.7 thoob ntiaj teb sib npaug lossis sib npaug?
Lwm cov qauv qauv thoob ntiaj teb muaj sib npaug lossis cov qhab nia zoo sib xws nrog cov kev ua tau zoo sib xws rau A333 Gr.7. International Standard ISO 9327 muaj cov cai coj los saib. European Txheem EN 10216-4 specifies qib zoo sib xws, p355nl2, tab sis cov txheej txheem alloy thiab cryogenic qib tsis zoo ib yam. Cov tshuaj ncaj qha rau kev ncaj ncees yog StPl380 hauv Japanese Qauv Jis G3460, ib qho 3.5% Nickel Hlau Cryogenic Yeeb Nkab. Tuam Tshoj tus GB / T 18984 tseem qhia cov hlau rau cryogenic piping. Txawm li cas los xij, hauv cov phiaj xwm thoob ntiaj teb, tshwj xeeb hauv LNT cov haujlwm, Astm A333 Gr.7 tseem muaj "cov lus tau hais meej."
Cov ntaub ntawv tseem ceeb yuav tsum muaj nyob rau hauv cov khoom lag luam zoo (MTC) rau A333 Gr.7?
Cov khoom lag luam zoo (MTC lossis MTC lossis MTC lossis daim npav qhia txog tus kheej "rau cov ntaub ntawv steel thiab yuav tsum muaj cov ntaub ntawv ntxaws ntxiv rau A333 Gr.7. Cov ntaub ntawv tseem ceeb muaj xws li: Qhov loj me (cov txheej txheem tuab, cov qauv siv hluav taws xob, kev siv cua sov), lub sijhawm ua kom tiav (ntsuas kub Cov txheej txheem kev sim ua haujlwm thiab cov txiaj ntsig tau, thiab cov khw muag khoom cov ntawv pov thawj. Cov ntaub ntawv no yog qhov tseem ceeb rau cov neeg siv tshuaj ntsuam xyuas cov khoom ua raws.
