Ukuvikelwa kokushisa

Ngokuhamba kwesikhathi, imikhiqizo yensimbi ihamba kancane kancane. Izakhiwo zibhujiswa, ziphenduke zibe ngothuli. Ukuze ugweme imiphumela enjalo edabukisayo, kubalulekile ukwazi ukuthi ukubhujiswa kwezinsimbi kuyindlela futhi ukuyivikela kanjani kuyo. Insimbi ingaphansi kokubhujiswa ngenxa yethonya lemvelo yangaphandle, okuyi-electrochemical noma yamakhemikhali. Ukushisa kwamakhemikhali kubonakala ezindaweni ezingenakukwazi ukuqhuba amandla kagesi (imikhiqizo yamafutha, amagesi, utshwala). Impela zonke izinsimbi zitholakala kulo. I-electrochemical corrosion ivela ekubukeni kwensimbi yefilimu ye-electrolytic ngenxa yethonya lemvelo. Ngokuyinhloko, amaminetra asetshenziswayo emigwaqweni ebusika, kanti namagxolo ahambayo anomthelela . Izindlela nezindlela okumele zivikele ukulwa nokubola, ziningi.

Okuthandwa kakhulu futhi okuvamile ukusetshenziswa kwepeyinti nokugqoka ama-varnish. Ziyinkimbinkimbi futhi ayizinsimbi ezingekho zensimbi. Ukusebenza kahle kakhulu kunikezwa ukugqoka, okusekelwe kuma polymers zokwenziwa. Izingubo ezingenasisekelo ezingensimbi zinezinto ezihlukahlukene kakhulu. Lezi zihlanganisa amapende (amafutha, ama- alkyd ne-koqweqwe lwawo), kanye nama-varnishes (i-tar, i-synthetic, i-bitumen). Uma kusetshenziswe, lokhu kuvikelwa kokudubula kudala ifilimu encane evikela isimbi emithonjeni yamanzi kanye namathonya angaphandle. Ama-varnishes nama-paintings kulula kakhulu ukusebenzisa, angabizi. Ekuqaleni komsebenzi, kubalulekile ukulandela ngokugcwele ubuchwepheshe besicelo sabo. Ukumboza ngensimbi engxenyeni eziningana, ukuze uvikele kangcono isakhiwo kusuka emathonyeni angaphakathi.

Izembatho zensimbi-inhibitors zinezinhlobo ezimbili. Owokuqala uhlanganisa isitende esemboza nge-cadmium, i-zinc, i-aluminium. Ezingubo zokuvimbela ukulimala okwesibili ngebhesi, isiliva, ukuhola, i-nickel ne-chromium.

Kuye ngokuthi iyiphi indlela Isenzo sivikelwe ngokumelene nokubola, kubizwa ngokuthi i-cathodic noma i-anodic. Kunezambatho zensimbi-inhibitors, ezinamandla amaningi wokugqoka, nezembatho ezinamandla okushisa. Ukugqoka ama-anodic kungokwezihlobo zokuqala, ukumbozwa kwe-cathode kuya kohlobo lwesibili. I-aluminium ne-zinc isetshenziselwa ukugqoka ama-anodic, i-nickel, ithusi, ne-tin njengengubo ye-cathode.

Izindlela ezehlukene zokuvikela izinsimbi ezivela ku-corrosion zisho izinketho eziningi zokugqoka. Ngokwesibonelo, ngokufaka i-inhibitors, indlela yamakhemikhali yokugqoka izakhiwo zensimbi nezinye izinsimbi isetshenziswa: i-aluminium, i-zinc.

Uma isakhiwo sensimbi sesivele siboniswe ekushiseni, izithasiselo ezinjengezinhlaka eziphazamisayo kanye nezivimbela kuzosiza ukunciphisa inqubo yokubhujiswa. Izinqubo ezithintekayo emithonjeni ye-alkaline ne-neutral zivimbela ama-oxidizing anjalo anamandla njenge-alkaline umhlaba namanoni ensimbi yama-alkali. Ukuze uvikele ukuqiniswa kokhonkolo okuqinisiwe, sebenzisa i-nitrite-calcium nitrate.

Lapho kudingwa ukuvikelwa kokushisa, Njengoba ivela ngaphansi kwethonya lemvelo yangaphandle kanye nokwehla kwezulu, sebenzisa i-inhibitors enokuzwakalisa ukuthi yizinto ezikhangiswa phezu kwendawo yensimbi emoyeni noma zithinteka, zenzele ungqimba omncane.