Galvanizing e bua ka thekenoloji ea phekolo ea holim'a metsi ea ho roala lesela la zinki holim'a tšepe, motsoako kapa lisebelisoa tse ling ka morero oa ho thibela botle le mafome.
Zinc e qhibiliha ka li-acids le alkali, kahoo e bitsoa amphoteric metal.Zinc e fetoha hanyane moeeng o omileng.Moea o mongobo, holim'a zinki e tla theha filimi e teteaneng ea zinki ea carbonate.E nang le sulfur dioxide, hydrogen sulfide le Marine atmosfere, zinki corrosion resistance, haholo-holo mocheso o phahameng le mongobo o phahameng o nang le codendrosis ea organic acid e bonolo. ke -0.76v. Bakeng sa matrix a tšepe, seaparo sa zinki ke sa anodic coating, e sebelisoang haholo ho thibela ho bola ha tšepe. Ts'ebetso ea eona e sireletsang e na le kamano e kholo le botenya ba ho roala.Lintho tse sireletsang le tse khabisitsoeng tsa ho roala zinki li ka ntlafatsoa haholo ka passivation, staining kapa ho roala ka moemeli ea sireletsang.
Molao-motheo ke ho ka potlako oxidize holim'a tšepe le lihlahisoa tsa tšepe ho theha le letso-letso oxide filimi sireletsa layer.Ho na le tse peli tse atisang ho sebelisoa mekhoa ea ho blackening: ea setso alkaline futhumatsang blackening le morao blackening ka mocheso kamoreng.Empa phello ea mocheso kamoreng blackening tshebetso ka tlaase carbon tšepe ha e ntle.Ho molemo ho blacken A3 tšepe le alkali.Alkaledivided blackenction, le blackening tse peli tse ka sehloohong ke blackening hape. Likarolo tsa joala bo ntšo ke sodium hydroxide le sodium nitrite. Mocheso o hlokahalang bakeng sa blackening o pharaletseng, ho tloha hoo e ka bang likhato tse 135 ho isa ho tse 155 tsa Celsius, 'me u fumana sebaka se setle, empa ho nka nako. "Bluing" mokelikeli oa meriana o nka alkaline oxidation kapa acid oxidation.Ts'ebetso ea ho etsa filimi ea oxide holim'a tšepe ea tšepe ho thibela kutu e bitsoa "bluing".Filimi ea oxide e entsoeng holim'a tšepe e ntšo ka mor'a phekolo ea "bluing", karolo e ka ntle ke haholo-holo ferric oxide le lera le ka hare ke ferrous oxide.
Li-bolts tse matla ka kakaretso li sebelisoa ka manonyeletso a bohlokoa, ho itšetlehile ka tsitsipano e kholo le ho kuta.Mohato oa ho qetela oa ts'ebetso ea bolt ke phekolo ea mocheso, e tsejoang ka hore ke ho tima, ho eketsa matla a bolts. e hlahisoang ke phekolo ea ho tsosolosa matla a matla a phahameng ke filimi e batlang e tsitsitse ea oxidation.E ke ke ea e-ba mafome ha e sa kopane le lintho tse senyang.
https://www.china-bolt-pin.com/
Nako ea poso: Sep-09-2019