I. VUAM KEV PAB CUAM
1. Vuam cov txheej txheem yuav tsum tau
Ua ntej vuam, txheeb xyuas cov cuab yeej los xyuas kom meej tias tsis muaj xws li tam sim no, kev voltage, thiab vuam ceev ntsib cov qauv.
Kev vuam cov kev vuam Cov txheej txheem tsim nyog yuav tsum tau xaiv raws cov yeeb nkab cov khoom, txoj kab uas hla, thiab phab ntsa thickness.
Tom qab vuam, tshem tawm weld shag thiab ci, thiab ua yeeb yam pom kev pom zoo thiab tsis yog} kev sim siab (xws li ntsuas ultrasonic).
2. Weld txoj hauj lwm thiab zoo
Cov xaim hluavtaws ntev yuav tsum muaj kwv yees li 45℃los ntawm lub sab sauv thiab staggered (ntau dua lossis sib npaug ntawm 100mm rau cov kab yeeb nkab<600mm, ≥300mm for pipe diameters ≥600mm).
Sharmferorial WTDS yuav tsum muaj kev ncua deb ntawm ntau dua los yog sib npaug rau 100mm los ntawm kev txhawb nqa. Qhov kev sib nrug ntawm cov kev sib dhos uas nyob ib sab yuav tsum muaj ntau dua los yog sib npaug nrog 200 hli thiab tsis muaj tsawg tshaj li cov kab uas hla ntawm cov yeeb nkab ntawm cov yeeb nkab ntu.
Cov ntoo khaub lig cuam tshuam, thiab kev sib cav sib txawv yuav tsum tsawg dua lossis sib npaug ntawm cov phab ntsa tuab thiab tsawg dua lossis muaj sib npaug thiab sib dhos ua ke
Bevel Angle, Blunt Ntug, thiab Gap yuav tsum tau raws cov qauv tsim qauv. Vuam ntawm cov npoo ntsug lossis cua sov kom txo qhov kev sib raug txwv.
Ua ntej sib dhos, ntxuav sab hauv thiab sab nraud ntawm lub bevel tshem tawm cov roj, xeb, lossis lwm yam paug. Lub thickness txawv ntawm cov yeeb nkab seem ntawm cov phab ntsa sib txawv yuav tsum tsawg dua lossis sib npaug nrog 3 hli.
Ii. Flange Kev Sib Txuas Cov Lus Qhia
1. Flange installation yuav tsum tau
Cov Flange thiab Yeeb Nkab yuav tsum yog confentric, nrog parallel flange surgaces. Bolts yuav tsum yog tib yam tshwj xeeb thiab ntsia tau tib qho kev coj.
Bolts yuav tsum tau ua kom nruj ua ke, nrog 2-3 xov raug. Flange pob qij txha yuav tsum tau kho nrog kev tiv thaiv corrosion thaum faus av.
2. Sealing thiab anti - corrosion
Kev sib txuas lus yooj yim cia ua rau axial staggering ntawm 3-5mm; Cov pob qij txha tsis sib xws txwv tsis pub axial staggering.
Tom qab flange kev txuas, ntxuav cov xov uas raug thiab khawb, thiab siv tshuaj tiv thaiv corrosion.
III. Lwm Txoj Kev Sib Tw
1. Qhov txuas ntxiv txuas
Kev sib txuas tiav tiav los ntawm zawm cov txiv ntoo tiv thaiv lub tes tsho thiab compressing lub nplhaib sib khi. Xyuas kom meej lub foob kaw ntom nti . 2. nyem -} haum yooj yim
Ib qho cuab yeej tshwj xeeb nias cov yeeb nkab phab ntsa mus rau hauv cov duab hexagonal, deforming lub nplhaib sealing kom ua tiav lub foob.
3. Xov Xwm Txuas
Muaj feem xyuam rau cov kav dej nrog DN <80. Tom qab xov, burrs yuav tsum muaj kev txiav nyiaj thiab khib nyiab tshem tawm. Kev nthuav tawm yuav tsum yog 2-3 lem.
IV. Cov kev xav tau tshwj xeeb ib puag ncig
Lub caij ntuj no vuam: yuav tsum muaj raws li qhov kub thiab txias. Piv txwv li, cov pa roj carbon nrog cov ntsiab lus carbon tsawg dua los yog sib npaug ntawm tsawg dua lossis sib npaug ntawm cov qib siab dua lossis sib npaug rau 40mm.
Tsis - cov raj ntsuas kev kuaj: Yuav tsum tau ntsuas tshuab hluav taws xob thiab cov qauv ultrasonic raws li kev tsim qauv lossis cov qauv ntsuas ntawm ntau dua lossis sib npaug rau 10%.
V. Kev Soj Ntsuam Zoo
Cov khoom tswj tseem ceeb: Cov yeeb nkab ua ke thiab cov ntaub ntawv vuam, thiab cov ntawv xeem dhau los ntawm Weld tsis yog} kev sim siab, thiab groove qhov loj yuav tsum tau soj ntsuam rau txhua qhov sib koom ua ke.
Cov khoom dav: weld tsos (tsis muaj weld burrs, undercuts, thiab lwm yam) thiab anti corrosion kev kho (xws li ntsej muag corrosion) yuav tsum ua raws li GB50236.
