1, fafaza i-zinc anti-corrosion coating
Emva kokutshisa i-nodular cast iron pipe, umzimba wombhobho utshizwa ngobushushu obuphezulu besinyithi esinyibilikisiweyo isisombululo se-zinc xa ubushushu bufikelela malunga nama-600 degrees Celsius.Ingubo ye-zinc emva kokutshiza inokubambelela kakuhle, akukho lula ukuwa, kwaye inokusebenza kakuhle kwe-anticorrosion.
2, i-asphalt ipeyinti yokunqanda ukubola
Ukugquma kwe-asphalt yonyango lwangaphandle lwe-anticorrosion yokunikezelwa kwamanzi omileyo kunye nomzimba wombhobho wokubonelela ngegesi.Ngaphambi kokutshiza, umzimba wetyhubhu ye-nodular cast iron ufudumala ukuya kuma-80-100 degrees kwaye utshizwe.Emva kokufudumeza, ukutshiza kuphucula ukunamathela kwe-asphalt layer kwaye kunokomiswa ngokukhawuleza.
I-3, i-cement mortar lining + i-anti-corrosion ekhethekileyo yokwaleka
Ulwaleko lwesamente oluludaka lwe-anti-corrosive layer ilungele ukuhanjiswa kwamanzi okomileyo, kunye nokukhutshelwa kombhobho welindle lombuso, unikezelo lwamanzi kunye nokukhutshelwa kogutyulo olunodaka lwangaphakathi olwahlukileyo lwesamente, lunokuphucula ukuxhathisa kokutya kombhobho wentsimbi, ekwanti. amanzi kunye ne-cast iron layer, ukwenzela ukuba ingabangeli ukungcoliseka kwamanzi.
3, amalahle epoxy asphalt anti-corrosion ukutyabeka
Icoal tar epoxy coating ilungele zombini unikezelo lwamanzi kunye nemibhobho yogutyulo.I-sub-component subcoating i-coating kunye ne-adhesion ephezulu kunye nomgangatho ogudileyo kakhulu.
I-4, isela le-epoxy ceramic elifakwe kwi-anticorrosive coating
I-epoxy ceramic lining ifanelekile kwimibhobho eneemfuno eziphezulu zokubonelela ngamanzi, ukunikezelwa kweoli kunye nolwelo olukhethekileyo lweekhemikhali.I-Epoxy ceramic lining inokunamathela okuphezulu kunye nokucaca okukhanyayo, kunye nokumelana nolwelo oluncinci.Yeyona nto ibalaseleyo yokunqanda ukubola.Kodwa ngenkqubo yokuvelisa okomileyo iphezulu, ixabiso eliphezulu, ngoko kukho imida ethile ekusebenziseni.
I-5, i-aluminate cement coating kunye ne-sulfate yesamente yokwaleka kwe-anticorrosive
Ezi zimbini ezikhethekileyo zokugquma kwesamente zifanelekile kwi-anticorrosion yangaphakathi ye-nodular cast iron mibhobho esetyenziswa kwimibhobho yogutyulo ukuze kuphuculwe ukuxhathisa kwe-asidi kunye ne-alkali kugutyulo.
6, polyurethane anticorrosive ukutyabeka
I-polyurethane ibizwa ngokuba yi-polyurethane, ikhonkco eliphambili eliqulethe iqela eliphindaphindiweyo le-carbamate ye-macromolecular compounds.Ihlanganiswe ne-organic diisocyanate okanye i-polyisocyanate kunye ne-dihydroxyl okanye i-polyhydroxyl ikhompawundi ye-copolymerization.Ayinayo kuphela ukuxhathisa okugqwesileyo kokunxiba, ukuchasana kwempembelelo, ukuchasana nokuqhekeka, ukuchasana kwe-uv kunye nokumelana nobushushu obuphezulu kunye nobushushu obuphantsi, obunamandla aphezulu, ukuxhathisa okuphezulu kunye nokumelana ne-solvent.Ukwandlala kuyabiza ukuvelisa.