Cov Kev Xaiv Txheej Txheem rau EN545 Fittings

Nyob rau hauv thaj teb ntawmcov yeeb nkab hlau ductile, txheej asphalt, txheej polyurethane/polyethylene (PU/PE) thiab txheej fusion bonded epoxy hmoov (FBE) yog peb cov thev naus laus zis tiv thaiv xeb, uas tsim nyog rau ntau qhov chaw sib txawv thiab cov xwm txheej ua haujlwm.

1. Cov xim pleev xim nplua nuj zinc, xim pleev asphalt + txheej cement
Cov txheej sab nraud yog siv los ntawm kev txhuam tes lossis txau rau sab nraud ntawm lub yeeb nkab, thaum cov txheej cement yog siv los ntawm kev siv cov cement mortar rau sab hauv ntawm lub yeeb nkab.

Cov txiaj ntsig:

• Kev Lag Luam: Cov nqi khoom siv raw tsawg, cov thev naus laus zis paub tab, thiab cov nqi tsim kho sib tw tag nrho.
• Kev Ywj Pheej: Hloov kho rau qhov me me ntawm cov yeeb nkab deformation thiab kev sib tsoo, tiv taus kev tawg.
• Kev Tiv Thaiv Tshuaj: Tiv taus cov kab mob hauv av thiab cov electrolytes tsis muaj zog heev.

Qhov Tsis Zoo:

• Kev phooj ywg ib puag ncig tsis zoo: Cov pa phem yuav raug tso tawm thaum lub sijhawm tsim khoom thiab kev tsim kho, ua rau nws nyuaj rau ua raws li cov qauv ib puag ncig uas nruj zuj zus.
• Lub zog kho tshuab qis: Yooj yim rau khawb thaum thauj mus los thiab teeb tsa.
• Kev hloov pauv tsis zoo ntawm qhov kub thiab txias: Nws tawg yooj yim thaum kub qis, nws mos thiab ntws thaum kub siab, thiab qhov kub thiab txias cuam tshuam rau kev ua tau zoo.

Lub hom phiaj ntawm epoxy coated ductile hlau fittings:
Feem ntau tiv thaiv phab ntsa sab hauv ntawm cov yeeb nkab, tiv thaiv kev xeb ntawm cov hlau ductile substrate los ntawm cov dej thauj mus los, thiab pab tswj kom cov dej zoo ruaj khov.

Cov ntawv thov:
Haum rau cov dej hauv nroog uas tsis tas yuav tsum muaj kev tiv thaiv ib puag ncig thiab tsis muaj peev xwm ua rau xeb (xws li cov av ib puag ncig nruab nrab), nws yog ib qho ntawm cov kev xaiv pheej yig tshaj plaws hauv kev ua lag luam.

2. Txheej Polyurethane/Polyethylene (PU/PE)
Cov txheej no muaj kev tiv thaiv corrosion zoo heev thiab tiv taus cov kua qaub thiab alkalis.

Cov txiaj ntsig:

• Kev ua tau zoo heev: Ua ke cov khoom siv kho tshuab zoo heev (kev hnav thiab kev cuam tshuam) nrog kev ruaj khov tshuaj lom neeg (acid, alkali, thiab ntsev tsuag), thiab cov khoom rwb thaiv tsev zoo heev.
• Kev nplaum zoo: Cov epoxy primer ua kom muaj kev sib txuas zoo ntawm cov txheej thiab cov substrate, tiv thaiv kev nkag mus rau hauv xov xwm.
• Hloov Tau: Muaj peev xwm tiv taus kev ntxhov siab ntawm kev thauj mus los thiab kev rov qab ntim, tsim nyog rau ntau yam av ib puag ncig hnyav, suav nrog thaj chaw xuab zeb.

Qhov Tsis Zoo:

• Tus nqi siab dua: Cov khoom siv raw thiab cov txheej txheem tsim khoom nyuaj ua rau tus nqi tag nrho siab dua li txheej asphalt.
• Nyuaj kho: Thaum puas lawm, kev kho ntawm qhov chaw nyuaj heev thiab xav tau cov ntaub ntawv thiab cov cuab yeej tshwj xeeb.

3. Fusion Bonded Epoxy (FBE) Txheej
Cov txheej hmoov FBE tsim ib txheej tiv thaiv nyias, tawv los ntawm kev txau electrostatic thiab kev kho kub siab, paub zoo rau nws qhov kev nplaum zoo heev thiab kev tsis muaj tshuaj lom neeg. Thaum lub sijhawm siv, cov yeeb nkab raug tua thawj zaug kom tshem tawm xeb thiab preheated rau kwv yees li 230 ° C. Cov hmoov epoxy ductile hlau fittings ces electrostatically lo rau ntawm qhov kub, yaj, leveling, thiab sai sai kho rau hauv ib zaj duab xis txuas ntxiv, ntom.

Cov txiaj ntsig:

• Kev nplaum ruaj khov heev: Tsim kev sib txuas tshuaj lom neeg nrog cov hlau substrate, muab kev sib txuas ruaj khov thiab tiv taus cathodic disbonding zoo heev.
• Kev tiv thaiv tshuaj lom neeg zoo heev: Kev tiv thaiv zoo rau feem ntau cov kua qaub, alkalis, ntsev, cov kuab tshuaj, thiab dej hiav txwv.
• Nyias tab sis tawv: Feem ntau yog 300–500 μm tuab, nws muaj qhov chaw du thiab coefficient qis ntawm kev sib txhuam, ua rau nws yooj yim rau kev thov thiab teeb tsa.
• Ib puag ncig zoo thiab muaj kev nyab xeeb: Ua los ntawm 100% cov khoom khov thiab tsis muaj cov organic sib xyaw ua ke (VOCs), nws yog ib puag ncig zoo thaum lub sijhawm tsim khoom thiab siv.

Qhov Tsis Zoo:

• Kev tiv thaiv tsis muaj zog: Cov txheej nyias nyias no yooj yim raug puas tsuaj los ntawm kev cuam tshuam nrog cov khoom ntse.
• Kev tiv thaiv UV tsis zoo: Nws yooj yim rau kev pleev xim thiab laus tom qab raug tshav ntuj ntev, ua rau nws tsis haum rau cov kav dej saum av.
• Cov kev cai ntawm cov txheej txheem uas yuav tsum tau ua kom hnyav heev: Cov kev cai nruj heev raug muab tso rau ntawm qhov chaw npaj thiab cov txheej txheem siv; tej qhov tsis zoo yuav ua rau muaj qhov tsis zoo ntawm cov txheej.

Hauv cov ntawv thov thauj dej haus, cov txheej asphalt yuav tsum ua tau raws li cov qauv kev tu cev, thiab lawv cov txheej tuab feem ntau tsis tsawg dua 70μm, thiab hauv zos tsis tsawg dua 50μm; thaum lub thickness ib txwm ntawm FBE txheej yog siab dua 250μm.

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