Thaum kev yuav A333 Gr.7 Cov Khoom Siv Hlau, Dab tsi yog cov ntsiab lus tseem ceeb ntawm cov ntsiab lus hais meej hauv kev txiav txim?
Cov ntsiab lus tseem ceeb yuav tsum tau hais meej meej hauv kev txiav txim yuav kom zam dhau kev sib cav. Ua ntej, cov qauv khoom yuav tsum tau hais meej: ASTM A333 qib 7. Thib ob, kev tsim khoom lag luam yuav tsum tau teev tseg: seamless lossis welded. Qhov thib peb, tus mob yuav tsum tau teev tseg: feem ntau yog li qub (n) lossis qhov qub thiab tempered (NT). Plaub, cov cai tshuaj xyuas ntxiv yuav tsum tau ua kom pom tseeb, 100%} {} {{{}}}}}}}}}}}}}}}}}}} kev kuaj xyuas. Qhov thib tsib, qhov kev cuam tshuam rau qhov ntsuas kub (-101 degree) thiab kev txais yuav tsum tau teev tseg. Thib rau, cim, ntim khoom, thiab cov ntaub ntawv cov ntaub ntawv yuav tsum tau hais meej (piv txwv, MTC yuav tsum muaj ntawv pov thawj 3.2. Cov ntsiab lus meej yog qhov tseem ceeb rau kev ua kom tiav kev tshaj tawm.
Yuav ua li cas thiaj tuaj yeem yog qhov tseeb ntawm A3333 Gr.7 Cov kav dej hlau tau tshawb xyuas thaum lub sijhawm kuaj (IQC)?
Cov khoom xa khoom yog cov kauj ruam tseem ceeb hauv kev tiv thaiv cov khoom lag luam qis dua los ntawm cov khoom lag luam tiag tiag. Kev txheeb xyuas cov ntaub ntawv pib nrog daim ntawv ntsuam xyuas: Ua tib zoo ua raws li cov qauv tshuaj, thiab cov kev xav tau tshwj xeeb, tshwj xeeb} 101 kev cuam tshuam lub zog muaj nqi. Next, physical verification is performed: checking that the inkjet markings on the steel pipe surface are consistent with the MTC information, including the standard, grade, dimensions, and heat batch number. Spectrometric tsom xam (PMI) tuaj yeem ua kom sai sai tias cov ntsiab lus ntawm cov ntsiab lus tseem ceeb (xws li npib tsib thiab manganese) ntais ntawv daim ntawv pov thawj. Rau cov khoom tseem ceeb, cov qauv yuav tsum tau xa mus rau chav kuaj kom rov tshuaj xyuas, cuam tshuam tshwj xeeb tshaj plaws.
Dab tsi lub luag haujlwm yog peb {{{{{{}} kev soj ntsuam kev soj ntsuam hauv A333 Gr.7 Cov yeeb nkab steel tsim kho zoo?
Thib peb {-}}) ua haujlwm ua kev ywj pheej thiab ncaj ncees "{1}} kev ntim lossis cov phiaj xwm tseem ceeb. Cov koom haum TPI feem ntau ua rau - kev soj ntsuam cov txheej txheem kev kho mob (tshwj xeeb tshaj yog kev cuam tshuam ua raws cov cai thiab cov qhabnias ntawm cov txiaj ntsig. Lawv kuj txheeb xyuas lub Hoobkas kev paub zoo thiab cov ntaub ntawv ntau lawm. Ua ntej cov zaub mov xa tuaj, lawv ua qhov kev kuaj xyuas zaum kawg, kev tshuaj xyuas pom, thiab cov ntaub ntawv tshuaj xyuas. Thib peb {{{{}} kev tshuaj xyuas tog muab cov neeg yuav khoom nrog kev pheej hmoo ua kom muaj kev pheej hmoo, ua kom muaj kev phom sij zoo.
Dab tsi yog cov teeb meem zoo tshaj plaws nrog A333 Gr.7 steel hlau?
Txawm hais tias tus nruj yuav tsum tau ntawm tus qauv, qee qhov teeb meem zoo tseem tuaj yeem tshwm sim. Feem ntau yog cov substandard cuam tshuam lub zog, uas tuaj yeem tshwm sim los ntawm kev kho cua sov sov, tshuaj lom neeg sib txawv. Tom ntej no ntawm cov npe yog tsis- Kev sim ua kom puas tsuaj, xws li tsis muaj kev sib cav sib ceg, lossis tsis muaj kev sib tsoo, pauv, thiab cov kab nrib pleb hauv welded kav. Dagensional sib txawv, xws li ntau qhov kev sib txawv ntawm phab ntsa thickness sib txawv lossis tsis tsim nyog ovality, kuj tseem muaj ntau. Ntsis qhov tsis xws luag, xws li khawb qhov tob thiab ua rog, kuj tseem muaj. Cov teeb meem tswj hwm, xws li cov cim tsis raug lossis tsis sib xws ntawm cov ntaub ntawv thiab cov khoom lag luam tiag tiag, kuj tshwm sim. Kev tswj hwm lub cev muaj zog yog qhov tseem ceeb rau kev zam cov teeb meem no.
Yuav ua li cas tsis yog - conforming A333 Gr.7 Cov Kav Hlau yuav ua haujlwm?
Cov txheej txheem nruj yuav tsum tau ua raws kev tuav tsis yog -} conforming cov khoom. Ua ntej, lawv yuav tsum tau cais thiab sau npe kom tiv thaiv tsis meej pem nrog cov khoom sib xyaw. Yuav tsum tau txais kev xa ntawv yuav tsum tau ceeb toom thiab kev kuaj xyuas los tshawb xyuas qhov xwm thiab qhov hnyav ntawm cov nonconformance. Kev kho vaj tse (piv txwv li, polishing) tej zaum yuav tau txiav txim siab rau cov kav dej nrog qhov tsis xws me), tab sis cov kev kho hauv zos yuav tsum tau rov ua}}}} Tshawb xyuas thiab ua raws cov qauv. Cov kav dej nrog cov khoom tsis txaus ntseeg (piv txwv li cov kev cuam tshuam tsis txaus) lossis qhov tsis txaus ntseeg loj (piv txwv li, cov kab nrib pleb) yuav tsum raug tsis lees paub thiab xa rov qab. Txhua cov txheej txheem tuav cov txheej txheem thiab cov txiaj ntsig yuav tsum ua tib zoo sau tseg, thiab hauv paus ua rau pom kev ntsuas kom tiv thaiv kom tsis txhob rov muaj dua.
