Galvanizing amatanthauza pamwamba mankhwala luso plating wosanjikiza nthaka pamwamba pa zitsulo, aloyi kapena zipangizo zina pofuna kukongola ndi dzimbiri prevention.The njira yaikulu ndi otentha divi galvanizing.
Zinc amasungunuka mu zidulo ndi zamchere, choncho amatchedwa amphoteric metal.Zinc kusintha pang'ono mu mpweya youma.Mu mpweya wonyowa, nthaka nthaka kupanga wandiweyani zofunika nthaka carbonate film.Muli sulfure dioxide, hydrogen sulfide ndi Marine atmosphere, zinki dzimbiri. kukana ndi osauka, makamaka kutentha ndi mkulu chinyezi munali organic asidi mlengalenga, nthaka ❖ kuyanika n'zosavuta corroded.The muyezo elekitirodi mphamvu ya nthaka ndi -0.76v.Kwa masanjidwe achitsulo, zokutira za zinki ndi za anodic ❖ kuyanika, komwe kumagwiritsidwa ntchito makamaka poletsa dzimbiri lachitsulo.Ntchito yake yotetezera imakhala ndi chiyanjano chachikulu ndi makulidwe a zokutira.Zotetezera ndi zokongoletsera zazitsulo za zinc zimatha kusinthidwa kwambiri ndi passivation, deining kapena kupaka ndi wothandizira chitetezo.
Mfundo yake ndi kuthamangitsa oxidize pamwamba pa chitsulo ndi zitsulo zopangidwa ndi chitsulo kuti apange wandiweyani wa oxide filimu woteteza wosanjikiza. Pali njira ziwiri zomwe zimagwiritsidwa ntchito popanga blacken: chikhalidwe cha alkaline Kutentha kwakuda ndikuda mochedwa kutentha kwa chipinda. Pachitsulo chochepa cha carbon sichili bwino.Ndi bwino kudetsa chitsulo cha A3 ndi alkali.Kukuda kwa alkalescent kumagawanika, kukhalanso ndi blackening ndi kusiyanitsa kuwiri kwakuda.Zigawo zazikulu za mowa wakuda ndi sodium hydroxide ndi sodium nitrite.Kutentha kumafunika kuti mdima ukhale lonse, kuyambira pafupifupi 135 digiri Celsius mpaka 155 digiri Celsius, ndipo mumapeza malo abwino, koma zimatenga nthawi. Kumizidwa kwamafuta pambuyo pakuda. Ubwino wakuda wakuda nthawi zambiri umasiyana ndi njira izi.Chitsulo "bluing" mankhwala amadzimadzi amatenga alkaline oxidat.ion kapena acid oxidation. Njira yopangira filimu ya oxide pamwamba pazitsulo kuti iteteze dzimbiri imatchedwa "bluing". wosanjikiza wamkati ndi ferrous oxide.
Maboti apamwamba kwambiri amagwiritsidwa ntchito pamagulu ofunikira kwambiri, potengera kupsinjika kwakukulu ndi kukameta ubweya.Chotsatira chomaliza pakukonza bolt ndi chithandizo cha kutentha, chomwe chimadziwika kuti quenching, kuwonjezera mphamvu ya ma bolts. galvanizing bolts.Kutsekemera kwa haidrojeni nthawi zambiri kumadziwika ndi kuchedwa kwapang'onopang'ono.Izi zimachepetsa mphamvu zazitsulo zamphamvu kwambiri.Choncho, pamwamba pakuda komwe kumapangidwa ndi kutenthetsanso kwazitsulo zamphamvu kwambiri ndi filimu yokhazikika ya okosijeni. sichimakhudzana ndi zinthu zowononga.
https://www.china-bolt-pin.com/
Nthawi yotumiza: Sep-09-2019