Gulu la Zitsulo Zachifumuimapereka mitundu yonse ya mankhwala oletsa dzimbiri pamwamba paMapaipi achitsulo a ASTM A500, zomwe zimagwiritsa ntchito zinthu zachikhalidwe mkati mwa dzikolo komanso malo ovuta a m'nyanja, m'mphepete mwa nyanja komanso pansi pa nthaka. Timapereka njira zosinthira zophimba kuti zigwirizane ndi bajeti zosiyanasiyana za polojekitiyi komanso zofunikira pa moyo wautumiki.

1. Chitsulo Chakuda
Chomaliza chachitsulo chakuda choyambirira sichili ndi utoto wowonjezera, chophatikizidwa ndi mankhwala ochiritsira dzimbiri opaka mafuta nthawi zonse. Ndi njira yotsika mtengo, yoyenera kwambiri ntchito zomanga zamkati, ntchito zamkati ndi zida zina zomwe zimafuna kudula kwachiwiri, kuwotcherera ndi kukonzanso. Chomalizachi chimapereka magwiridwe antchito okhazikika ndipo chimakwaniritsa zofunikira zaukadaulo wamba wa maziko komanso zotsutsana ndi dzimbiri kwa nthawi yochepa.

2. Chophimba cha Fusion Bonded Epoxy (FBE)
Chophimba cha FBE ndi choteteza chapamwamba kwambiri chomwe chimagwiritsidwa ntchito pa mapaipi achitsulo. Chokhala ndi kukhazikika kwabwino kwa mankhwala, chimalimbana bwino ndi kukokoloka kwa asidi, alkali, mchere ndi mankhwala osiyanasiyana. Ndi mphamvu yamphamvu yolumikizirana komanso kukana kwabwino kwa kukanda, chophimbachi chimapereka chitetezo cholimba cholimbana ndi dzimbiri kwa nthawi yayitali, choyenera kwambiri m'malo opangira mafakitale, zochitika zokhudzana ndi mankhwala ndi maziko apansi panthaka omwe ali ndi zofunikira zolimba.

3. Chophimba Choletsa Kudzikundikira cha 3PE cha Zigawo Zambiri
Chophimba cha 3PE chokhala ndi zigawo zitatu ndi njira yodziwika bwino yolimbana ndi dzimbiri pazochitika zovuta zauinjiniya, yopangidwa ndi makina aukadaulo okhala ndi zigawo zitatu: gawo loyambira la epoxy, gawo lomatira lapakati ndi gawo loteteza lakunja la polyethylene. Kapangidwe kake kophatikizana kamakwaniritsa kuphatikiza kwabwino kwa kukana dzimbiri kwa mankhwala, kukana kukhudzidwa ndi makina komanso magwiridwe antchito oteteza madzi.
Chifukwa cha kusinthasintha kwake kwapamwamba kwambiri kumadera ovuta kwambiri, makina opaka utoto a 3PE amagwiritsidwa ntchito kwambiri mu uinjiniya wa m'mphepete mwa nyanja, zomangamanga za m'nyanja, mapulojekiti oyambira kunyanja, komanso ntchito zogwirira ntchito zodzaza mapaipi okhala ndi zofunikira kwambiri kuti zisawonongeke komanso kuti zikhale ndi nthawi yayitali yogwira ntchito.