1, fafaza i-zinc anti-corrosion coating
Ngemva kokushisa kuqala ipayipi lensimbi eyi-nodular cast, umzimba wepayipi ufafazwa ngokushisa okuphezulu kwesisombululo sensimbi esincibilikisiwe se-zinc lapho izinga lokushisa lifinyelela cishe ku-600 degrees Celsius.I-zinc enamathela ngemva kokufafaza inokunamathela okuhle, akulula ukuwa, futhi inokusebenza okuhle kwe-anticorrosion.
2, upende we-asphalt anti-corrosion coating
I-Asphalt coating iyindlela yokwelapha yangaphandle ye-anticorrosion yokuhlinzekwa kwamanzi omile kanye nomzimba wepayipi lokuhlinzeka ngegesi.Ngaphambi kokufafaza, umzimba we-nodular cast iron tube ufudunyezwa ku-80-100 degrees bese ufuthwa.Ngemuva kokushisa, ukufafaza kuthuthukisa ukunamathela kongqimba lwe-asphalt futhi kungamiswa ngokushesha.
3, ulwelwesi lukasimende lodaka + i-anti-corrosion coating ekhethekile
Lesi silinganiso sangaphakathi se-anticorrosive silungele ukuhlinzekwa kwamanzi ezokuthutha ezomile, nokuchithwa kwepayipi lesimo sokukhuculula indle, ukuthuthwa kwamanzi kanye nokuchithwa kwendle ngodaka oluhlukene lukasimende lwangaphakathi, lungathuthukisa ukumelana nokugqwala kodonga lwepayipi lensimbi le-ductile, elihlukanisiwe. amanzi kanye ne-cast iron layer, ukuze ingabangeli ukungcoliswa kwamanzi.
3, i-coal epoxy asphalt anti-corrosion coating
I-coal tar epoxy coating ifaneleka kokubili kokuphakelwa kwamanzi namapayipi okuthuthwa kwendle.I-subcoating enezingxenye ezimbili ene-adhesion ephezulu kanye nendawo ebushelelezi kakhulu.
4, isela le-epoxy ceramic elimbozwe nge-anticorrosive coating
I-epoxy ceramic lining ifanele amapayipi anezidingo eziphezulu zokuhlinzekwa kwamanzi, ukunikezwa kukawoyela kanye noketshezi lwamakhemikhali akhethekile.I-epoxy ceramic lining inokunamathela okuphezulu nokucaca okukhanyayo, kanye nokumelana noketshezi okuncane kakhulu.Kuyi-anti-corrosion coating enhle kakhulu.Kodwa ngenqubo yokukhiqiza eyomile iphakeme kakhulu, ibiza kakhulu, ngakho-ke kunemikhawulo ethile ekusetshenzisweni.
5, i-aluminate usimende enamathela kanye ne-sulfate usimende enamathela evikela ukubola
Lezi zingubo ezimbili ezikhethekile zikasimende zilungele ukunqanda ukubola kwangaphakathi kwamapayipi ensimbi enziwe ngamanodular asetshenziswa emigqeni yokukhucululwa kwendle ukuze kuthuthukiswe ukumelana nokugqwala kwezingxenye ze-asidi ne-alkali endle.
6, polyurethane anticorrosive enamathela
I-polyurethane ibizwa ngokuthi i-polyurethane, iketango eliyinhloko eliqukethe iqembu le-carbamate eliphindaphindiwe lama-macromolecular compounds.Yakhiwe nge-organic diisocyanate noma i-polyisocyanate kanye ne-dihydroxyl noma i-polyhydroxyl compound copolymerization.Ayinayo nje ukumelana nokugqoka okuhle kakhulu, ukumelana nomthelela, ukumelana nokuqhekeka, ukumelana ne-uv nokumelana nokushisa okuphezulu nokuphansi, okunamandla aphezulu, ukumelana nokugqoka okuphezulu nokumelana ne-solvent.Ukugqoka kuyabiza ukukhiqiza.