Pom Kev Pom Kev Txhim Kho Cov Qauv Ntsuam Xyuas
1. Qhia Taw Qhia:
Yuav kom paub tseeb tias UTE PECEM & ITAQUI Power Projects steel cov qauv nrog cov neeg muaj feem tsim nyog welds thiab vim li ntawd peb lub vuam zoo thiab vuam tswj kom siab dua, peb yuav siv daim duab kos, daim tshev nyiaj txais rau cov welds raws li AWS D 1.1-2008 < cov="" qauv="" tsim="" muaj="" cov="" hlua="" khi="" hlua="" khi="">> thiab cov ntaub ntawv cog lus txheeb ze ntawm cov ntaub ntawv. 2. Cov Lus Qhia thiab Cov Qauv:
Kev soj ntsuam yuav tsum tau ua raws li Daim Ntawv Tshooj 6.1-Kev Pom Kev Ntsuam Xyuas Kev Pom Zoo thiab Daim duab 5.4-Pom Zoo thiab Tsis Txaus Ntsig Cov Lus Qhia ntawm AWS D1.1-2008. ( 3. Kev Nyab Xeeb thiab Kev Nyab Xeeb:
3.1. Yuav kom tiv thaiv tsis tau hluav taws xob, tag nrho cov chaw fais fab thiab cov ntawv ua haujlwm
yuav tsum hu rau hauv av, qhov chaw khiav hauj lwm yuav tsum ua kom qhuav, thiab cov neeg tsav tsheb yuav tsum hnav cov hnab looj tes thiab cov khau rubber tag. Thaum twg raug pom muaj hluav taws xob xaim hluav taws xob raug pom zoo yuav tsum muab pov tseg tam sim ntawd.
3.2. Yuav kom tiv thaiv tau los ntawm cov hmoov av, phom thiab pob, txhua tus neeg tsav tsheb yuav tsum hnav
cov khoom tiv thaiv xws li tshuab ntsej muag lub ntsej muag ntsej muag, tsom iav thiab lwm yam )
3.3. Cov neeg tsav tsheb yuav tsum tau hnav lub pob ntseg kom tiv thaiv lawv tus kheej tawm ntawm cov suab nrov
kav pem teb.
3.4. Yuav kom tiv thaiv tsis tau los ntawm kev tsim txom los ntawm cov hlau, tawg, welding spatter thiab
Thaum tshav kub kub nyob rau hauv kev siv welding, kev lag luam, cov neeg tsav tsheb yuav tsum hnav khau raj (los yog txwv tsis pub nrog cov ceg ntoo), cov hnab looj tes tawg (fireproofing gloves) thiab lub ntsej muag (ntsej muag).
3.5. Tag nrho cov tswvcuab steel yuav tsum tau muab tso rau hauv ib qho chaw raws li, tsis yig thiab yooj yim rau
soj ntsuam.
3.6. Cov teeb pom kev zoo yuav tsum tau muab pov tseg rau hauv kev cob qhia. Tsim nyog cov khoom siv teeb pom kev zoo xws li
raws li lub vauj yuav tsum muab xa mus xyuas ntawm qee thaj chaw.
4. Cov Neeg Kuaj Xyuas:
4.1. Certified vuam kuaj xyuas (CWI) los ntawm AWS (kos rau PJP welds ntawm kab thiab
phaj nkag).
4.2. Cov neeg ua haujlwm pov thawj muaj kev koom tes hauv kev lag luam.
4.3. Cov kws ntsuam xyuas los ntawm CWI, lawv yuav ua hauv kev tswj thiab kev saib xyuas ntawm
CWI.
5. Tshawb Fawb
5.1 Qhov kev ncua deb ntawm qhov muag thiab qhov kuaj sim yuav tsum tsis pub tshaj 600mm hauv qhov kev ntsuam xyuas ncaj qha. Lub kaum sab xis ntawm qhov pom ntawm qhov pom thiab qhov kuaj sim yuav tsum tsis pub tsawg dua 30 °. Tsom iav siv tau los txhim kho lub kaum sab xis ntawm lub zeem muag.
5.2 Qhov kev xeem yuav tsum muaj kev pom zoo, feem ntau tsis tshaj 1000 Iux.
5.3 Thiab lub iav tsom iav yuav tsum muab siv rau qhov kuaj xyuas me me.
5.4 Cov cuab yeej xws li txuas pob txha, nplaum iav, teeb tsom, thiab lwm yam yuav tsum siv rau
soj ntsuam.
6. Cov txheej txheem yuav siv:
6.1 Kev ntsuam xyuas ua ntej Welding
6.1.1 Kev Tshawb Xyuas Cov Txheej Txheem Mus Sib Dham
① Cov ntawv ntxoov ntxoo , zuaj zuam, qhov tob tob thiab qhov khaus qhov yuav tsum ua raws li WPS.
② Lub fusion ntsej muag yuav tsum tsis pub dawb los ntawm xws li xws li kev sib tw, cov kab nrib, kev puas tsuaj, kev nplua, thiab lwm yam.
③ Cov zis ntawm cov hlau uas tsis tshua muaj hlau thiab hlau los ntawm cov chaw nyob ze rau hauv 25 hli yuav tsum yog pub dawb los ntawm cov dej, roj, hmoov av, organic coatings, galvanizing lossis lwm yam khoom siv txawv teb chaws, uas yuav ua rau cov khoom tsis zoo.
6.1.2 Kev Tshawb Fawb Cov Tshawb Fawb
Tom qab cov khoom sib sau ua ke tas, cov khoom sib tw thiab qhov nruab nrab ntawm cov khoom yuav tsum raug kuaj xyuas. Txoj kev tsis sib haum, lub qhov rooj sib txawv thiab kev sib cais ntawm pob ntais cov pob txha, qhov ntev thiab qhov nruab nrab ntawm cov pob ntseg pob qij thiab qhov khoob ntawm T-pob yas qaum thiab cov pob yas qaum tsev yuav tsum ua raws li cov cai uas tau teev tseg hauv 5.22 thiab 5.23 ntawm AWS D1.1: 2008.
6.1.3 Kev Tshawb Fawb Cov Khoom Siv
① Cov hlua hluav taws xob, lub xaim thiab cov xaim hluav taws xob yuav tsum muaj Ntaub Ntawv Pov Thawj los yog Cov Ntawv Tshawb Xyuas Cov Kev Xeem thiab qhov zoo yuav tsum ua raws li cov cai uas tau teev tseg hauv 5.3 ntawm AWS D1.1: 2008.
② Cov electrodes thiab flux yuav tsum tau xyuas raws li Kev Siv Khoom Vuam Siv Khoom (06361 / HHSF / WP / 22350 / X. / 0722).
6.1.4 Kev Tshuaj Xyuas Kev Xaiv Tsa
Kev ntsuas kub ntawm lub cev yuav tsum ntsuas nrog lub ntsuas kub, cov thermometers, thermocouples los yog thim ntom ntom thermometers, kom paub tseeb tias qhov kub siab txias, qhov twg thiab kev faib raws li WPS (06361-HHSF-WP-22350-X.-0707).
6.2 Kev Kuaj Xyuas Vuam
6.2.1 Kev siv welding, kev khiav dej num thiab cov txheej txheem yuav tsum ua raws li WPS
(06361-HHSF-WP-22350-X.-0707).
6.2.2 Rau kev siv phau ntawv arc vuam, siv rau sab nraud arc welding thiab roj-shielded welding, tus
vuam txwv tsis zoo yuav tsum raug xyuas kom paub meej tias lawv ua raws li WPS (06361-HHSF-WP-22350-X.-0707).
6.2.3 Yuav tsum tau kuaj lub qhov rooj sib tua tom qab ntxuav, kom paub tseeb tias interlayer
cov chaw, cov pob yas qij txha thiab cov grooves, thiab sab nraud yuav tsum huv thiab dawb ntawm cov kab nrib pleb, cuav, porosity, thiab lwm yam.
6.2.4 Tshaj ntsuas qhov ntsuas kub ntawm cov khoom kis uas yuav tsum tau tswj kav
ua tib yam nrog rau qhov kub thiab txias.
6.2.5 Rau lub hauv paus hlau uas yuav tsum tau siv ua ntej, tsis muaj qhov khi tawm tom qab nres , qhov preheating
qhov kub thiab txias yuav tsum ua kom tau raws li qhov kub raws qhov txheej txheem ua ntej pib chwv vuam.
6.2.6 Lub voj voos ntawm welds tom qab rov qab gouging yuav tsum ua raws li cov cai ntawm
WPS (06361-HHSF-WP-22350-X.-0707), thiab qhov yuav tsum tsis pub muaj teeb meem xws li tsis meej fusion, slag, porosity, tawg, thiab lwm yam.
6.3 Kev ntsuam xyuas tom qab Welding
6.3.1 Cov Khoom Siv Tshuaj Tawm
Kev ntsuas cov ntsuas kev ntsuas, ntsuas cov ntsuas thiab lwm cov khoom siv tshuaj xyuas yuav tsum tau txhim kho thiab pom zoo los ntawm Lub Chaw Kuaj Xyuas Kev Tsim Nyog.
6.3.2 Kev kuaj xyuas tom qab siv qhov yuav tsum ua tiav tom qab welds tu kom ntseeg tau tias Welds
thiab cov cheeb tsam ib ncig ntawm dawb los ntawm slag thiab spatter.
6.3.3 Tom qab siv welding, ntev npaum li cas yuav tsum raug kuaj xyuas kom paub tseeb tias qhov ntev ntawm qhov txhuav
tsis pub tsawg tshaj li qhov yuav tsum tau muaj ntev hauv cov duab kos thiab kom paub tseeb tias qhov kis ntawm welds tsis loj dua qhov kev sib nraus nyob hauv cov duab kos.
6.3.4 Kev soj ntsuam ntawm qhov chaw welds yuav tsum tau ua ua ntej NDE kev kuaj thiab kev foob
kuaj (yog tias NDT raug samfwm). Kev ntsuas txais yuav tsum yog raws li daim ntawv 6.1 ntawm AWS D1.1: 2008.
6.3.5 Yog tias yuav tsum siv cov khoom cua sov, yuav tsum tau siv cua sov, kub kub,
lub sijhawm sov so, txias npaum li cas, qhov txawv ntawm qhov kub ntawm ntau qhov chaw thaum lub sijhawm sib txawv thiab lub tshav kub-expansion thiab txias-contraction hauv txhua qhov yuav tsum tau kuaj. Cov cua sov yuav tsum raug kuaj xyuas rau cov welds uas muaj cov cua sov hauv zos. Kev soj ntsuam yuav tsum ua kom tau raws li Cov Kev Kho Mob Thaum Tshav Kub Kub thiab Tshooj 5.8 ntawm AWS D1.1: 2008.
7. NCRs thiab Kev Kho Vaj Tse:
7.1 Thaum tsis muaj cov khoom ntiag tug muaj nyob hauv cov khoom tiav thaum pom los yog NED kev soj ntsuam, cov khoom yuav tsum muab faib thiab muab tso raws li Txoj Cai Tswj Txheej Txheem Tsis Muaj Cai thiab tsis muaj lwm yam kev ua los yog ua raws cov txheej txheem yuav tsum ua. Meanwhile, tus saib xyuas lub luag haujlwm yuav tsum muab NCR Daim Ntawv Tshaj Tawm (Daim Ntawv Rhais Tom Qab-Hauv Tsab Cai Tswj Txheej Txheem Tsis Muaj Haujlwm) thiab ua daim ntawv no rau Chief Engineer los saib xyuas.
7.2 Tom qab soj ntsuam daim ntawv qhia NCR, Tus Thawj Coj Kev Ua Haujlwm yuav tsum npaj kho tom ntej
cov tswv yim los yog cov txheej txheem hauv lub sijhawm. Yog tsis muaj tus thawj coj ntawm lub tsev kawm ntawv, tsis muaj kev kho tus yam ntxwv yuav tsum raug siv rau cov khoom siv tsis-ncaj ncees.
7.3 Cov kws ntsuam xyuas yuav tsum paub meej txog qhov chaw tsis raug cai, teeb meem ua rau, tsim, thiab kho
yuav tsum tau ua ntej kho. Kho ntau tshaj ob zaug yuav tsum tau txais kev pom zoo los ntawm tus neeg ua haujlwm tus kws kho qhov muag.
7.4 Cov dej ntws tom qab tau muab tshem tawm yuav tsum tau kho raws li txoj cai, thiab qhov ntev
tshem tawm yog 50 hli ntev dua qhov ntev ntawm ob qho kawg, thiab muaj qee qhov chaw.
7.5 Kev kuaj xyuas kev ntsuas kev kho yuav tsum raug tseev kom muaj tib yam li kev tsim vuam siv
soj ntsuam.
7.6 Daim Ntawv Ceeb Toom Cov Tsis Ncaj Ncees yuav tsum raug kaw thaum tus saib xyuas lub luag haujlwm ib zaug
cov khoom kho tau ob zaug-tshuaj ntsuam.