1. Vim li cas qhov sib tshooj ntawm cov xim galvanized-coated steel coils yog qhov tseem ceeb ntawm kev pheej hmoo rau kev xau?
A: Qhov sib tshooj tsis yog tag nrho txuas ntxiv thiab muaj qhov tsis muaj zog hauv qab no:
Gap: Txawm tias thaum ob nplooj ntawv raug nias nruj ua ke, qhov khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob
Thermal expansion thiab contraction: Lub expansion thiab contraction ntawm cov xim -coated steel los xij nyob rau hauv qhov sib txawv ntawm qhov kub thiab txias tuaj yeem ua rau muaj kev sib txawv ntawm qhov sib tshooj, cuam tshuam lub foob;
Mechanical stress: Ko taw khiav, cua loads, los yog vibrations yuav loosen los yog deform qhov sib tshooj;
Txiav corrosion: Yog tias cov npoo ntawm qhov sib tshooj tsis xeb - pov thawj, qhov nthuav dav ntawm xeb yuav nthuav dav qhov khoob, ua kom cov pa tawm ntau ntxiv.
Yog li ntawd, tsuas yog cia siab rau overlapping yog tsis txaus rau txhim khu kev qha waterproofing; Kev ntsuas tshwj xeeb sealing yuav tsum tau ua.
2. Dab tsi yog txoj hauv kev zoo tshaj plaws thiab txhim khu kev qha rau waterproofing overlapping galvanized xim -coated steel coils?
A: Txoj kev "sealant sealing + mechanical fixing" yog ua los ntawm peb kauj ruam:
Ua ntawv thov tshwj xeeb sealant: Nruam siv cov huab cua tsis zoo silicone-cov ntaub nplaum tiv thaiv los yog butyl daim kab xev ntawm qhov sib tshooj (los yog ntawm ntug ntawm cov seam sib tshooj) los tsim cov txheej txheem dej tsis zoo;
Kev kho kom zoo: Txhim kho qhov sib tshooj ntawm tus kheej -tapping screws lossis rivets ntawm qee lub sijhawm (feem ntau Tsawg dua lossis sib npaug li 200mm) txhawm rau xyuas kom nruj haum ntawm ob daim hlau thiab tiv thaiv txheej sealant los ntawm kev tawg;
Ntug xov: Tsim ib txoj kab drip los yog siv cov sealant ntawm qhov kawg ntawm qhov sib tshooj (lub phaj qis kawg ntawm cov dej ntws) kom tsis txhob muaj dej ntws rov qab los ntawm cov seam.
Rau cov qauv ib ntus lossis ib puag ncig sab hauv tsev nrog cov kev xav tau nruj dua, ob npaug -ib sab butyl daim kab xev kuj tuaj yeem siv rau kev nias, tab sis lub sijhawm ntev - kev ntseeg siab tsis zoo li siv cov ntsia hlau.
3. Dab tsi yog qhov zoo thiab qhov tsis zoo ntawm sealant thiab butyl daim kab xev? Yuav xaiv li cas?
A: Khoom|Qhov zoo|Qhov tsis zoo|Siv tau Scenarios
Nruab nrab Silicone Weatherproof Sealant|Zoo elasticity, aging kuj, muaj zog adhesion, tuaj yeem txhuam rau kho|Yuav tsum tau kho lub sij hawm (feem ntau 24 teev los kho), yuav tsum tau rab phom caulking thaum lub sij hawm tsim kho, siab deg cleanness yuav tsum|Cov tsev nyob mus ib txhis, ru tsev, ntev - lub sij hawm waterproofing ntawm phab ntsa
Butyl daim kab xev|Kev tsim kho sai heev (tev thiab thov), kev sib khi tam sim, tsis tas yuav kho, dej zoo heev thiab huab cua nruj|Tsis tiv taus ntev - lub sij hawm ncaj qha UV hluav taws xob (yuav tsum tau them), tsis muaj zog tensile thiab shear zog, tej zaum yuav ntws ntawm qhov kub thiab txias|Internal sealing ntawm overlaps npog los ntawm lub sab sauv vaj huam sib luag, lub tsev ib ntus, kho thaum muaj xwm ceev
4. Dab tsi yog qhov yuav tsum tau ua tshwj xeeb rau kev sib tshooj dav thiab vaj huam sib luag hauv kev tiv thaiv dej?
A: Qhov tsawg kawg nkaus sib tshooj dav kom ua tau raws li qhov yuav tsum tau muaj dej tsis zoo nyob ntawm lub vaj huam sib luag hom, txoj kab nqes, thiab kev thauj khoom:
Ru tsev (txoj kab nqes Ntau dua lossis sib npaug li 5%):
Corrugated panels: Ntau dua los yog sib npaug rau ib qho kev ua tiav nthwv dej (feem ntau Ntau dua lossis sib npaug li 150mm);
Trapezoidal panels: Ntau dua lossis sib npaug rau 120mm (Ntau dua lossis sib npaug rau 200mm yam tsis muaj sealant);
Nrog sealant, nws tuaj yeem raug txo kom tsim nyog rau 80-100mm, tab sis tsis tsawg dua 50mm.
Phab ntsa: Feem ntau loj dua los yog sib npaug li 100 hli, thiab lub vaj huam sib luag sab saud yuav tsum npog sab nrauv ntawm lub vaj huam sib luag qis (sib tshooj nrog dej ntws).
Lub hauv paus ntsiab lus tseem ceeb:
Qhov chaw sib tshooj yuav tsum nyob ntawm purlins lossis cov tswv cuab txhawb nqa thiab tsis tuaj yeem raug ncua.
5. Yog hais tias qhov sib tshooj yog to, yuav ua li cas kho tau zoo yam tsis tau tshem lub vaj huam sib luag?
A: Nyob ntawm qhov chaw thiab qhov hnyav ntawm qhov xau, xaiv txoj kev kho uas tsis tas yuav tshem tawm lub vaj huam sib luag:
Txoj kev kho qhov dej tawm (tsis muaj vaj huam sib luag tshem tawm)
Me Cracks (Efflorescence pom thaum qhuav)
Ntxuav thiab qhuav, tom qab ntawd txhaj ib qho qis -viscosity penetrating sealant (xws li polyurea lossis acrylic) raws li qhov tawg, lossis txhuam ntawm cov kua roj hmab.
Screw Holes los yog Localized Small Holes Leaking
Txiav tus kheej- nplaum butyl daim kab xev rau hauv ib puag ncig lossis strip duab, npog lub qhov, thiab nias kom ruaj khov; los yog siv cov khoom nruab nrab silicone sealant thiab smooth nws nrog ib daim ntawv yas.
Ntev Overlap Joints nrog Tag Nrho Cov Leakage
Ua ntej ntxuav qhov tawg ntawm cov plua plav thiab roj → Thov ceev- ziab polyurethane sealant rau sab nrauv ntawm cov sib tshooj sib koom ua ke, thiab embed ib tus pas nrig rov qab los tswj cov thickness → Sprinkle cement lossis nplua xuab zeb rau ntawm qhov chaw tiv thaiv (yeem).