Ukonakala yenye yezinto ezibalulekileyo ezenza umonakalo wevalvu.Ekukhuselweni kwevalve, ukukhuselwa kwevalve ngumba obalulekileyo ekufuneka uqwalaselwe.Kwiivalve zetsimbi, unyango lwe-surface coating yeyona ndlela yokukhusela indleko.
1. Ukukhusela
Emva kokuba indawo yentsimbi ifakwe ngepeyinti, i-metal surface ihlukanisiwe nokusingqongileyo.Esi siphumo sokukhusela sinokubizwa ngokuba yi-shielding effect.Kodwa kufuneka kucaciswe ukuba ipeyinti encinci ayinakudlala indima yokukhusela ngokupheleleyo.Ngenxa yokuba i-polymer ephezulu inomoya othile wokungena emoyeni, xa isambatho sincinci kakhulu, iipores zayo zesakhiwo zivumela iamolekyu zamanzi kunye neoksijini ukuba zidlule ngokukhululekileyo.Iivalvu ezitywinwe ngokuthambileyo zineemfuno ezingqongqo kubukhulu bengubo ye-epoxy kumphezulu.Ingabonwa ukuba kwiingubo ezininzi ixabiso likhulu kunomgangatho wentsimbi engafakwanga.Ukuze kuphuculwe ukungabonakali kwengubo, i-anti-corrosion coating kufuneka isebenzise ifilimu eyenza ifilimu enomoya ophantsi kunye ne-filler eqinile kunye nepropathi enkulu yokukhusela, kwaye ngexesha elifanayo, inani leengubo zokugqoka kufuneka linyuswe. ukwenzela ukuba i-coating inokufikelela kubukhulu obuthile kwaye ibe yi-dense kwaye ingabikho.
2. Ukuthintela ukubola
Ngokuphendula iinqununu zangaphakathi zokugquma ngentsimbi, i-metal surface idluliswa okanye imveliso ekhuselweyo yenziwe ukuphucula umphumo wokukhusela wengubo.Iivalvu ezisetyenziselwa iimfuno ezikhethekileyo kufuneka zihlawule ingqalelo ekubunjweni kwepeyinti ukuphepha imiphumo emibi kakhulu.Ukongeza, ivalve yentsimbi esetyenzisiweyo kumbhobho we-oyile, iimveliso zokonakala ezenziwe phantsi kwesenzo se-oyile ethile kunye nesenzo sokomiswa kweesepha zesinyithi nazo zinokudlala indima ye-organic corrosion inhibitors.
3. Ukukhuselwa kwe-Electrochemical
I-electrochemical corrosion phantsi kwefilimu yenzeke xa i-dielectric permeable coating idibana nomphezulu wesinyithi.Sebenzisa iintsimbi ezinomsebenzi ophezulu kunentsimbi njengezizalisi kwiingubo, ezifana nezinc.Iza kudlala indima ekhuselayo ye-anode yombingelelo, kwaye iimveliso zokubola ze-zinc zisisiseko se-zinc chloride kunye ne-zinc carbonate, eya kuzalisa isithuba se-membrane kwaye yenze i-membrane iqine, enciphisa kakhulu ukubola kunye nokwandisa ubomi benkonzo ye-membrane. ivalve.
Ixesha lokuposa: Sep-19-2022