Umbhobho wesinyithi, eyaziwa ngokuba yipayipi yentsimbi egalelweyo, yahlulwe yangamacandelo amabini: i-hot-dip galvanizing kunye ne-electro-galvanizing. I-hot-dip galvanizing inomaleko we-zinc otyebileyo kwaye ineengenelo zokugquma ngokulinganayo, ukunamathela okuqinileyo, kunye nobomi benkonzo ende. Ixabiso lemibhobho egalelweyo yi-electro-galvanized liphantsi, umphezulu awugudi kakhulu, kwaye ukumelana kwayo nokugqwala kubi kakhulu kunokwemibhobho egalelweyo yi-hot-dip galvanized. Ukuze kuphuculwe ukumelana nokugqwala kwemibhobho yentsimbi, imibhobho yentsimbi eqhelekileyo iyagalelwayo. Imibhobho yentsimbi egalelweyo yahlulwe yangamaqela amabini: i-hot-dip galvanizing kunye ne-electro-galvanizing. I-hot-dip galvanizing inomaleko we-zinc otyebileyo. Ipayipi egalelweyo evuthelweyo yi-oksijini: isetyenziswa njengombhobho wokwenza intsimbi evuthelweyo yi-oksijini. Ngokubanzi, kusetyenziswa imibhobho yentsimbi egalelweyo enobubanzi obuncinci. Ukuze kuthintelwe ukugqwala, eminye kufuneka i-aluminize ngokufanelekileyo.
(1) Imveliso ekhethekileyo ecocekileyo
Umbhobho we-galvanized usebenzisa inkqubo ye-sulfate electroplating ye-zinc-iron alloy, oko kuthetha ukuba kukho ukugqobhoka ngokuthe ngqo phakathi kwemijelo yomgca wemveliso kunye nemijelo ngaphandle kokukhupha okanye ukugcwala kwesisombululo. Inkqubo nganye yenkqubo yemveliso yenziwe yinkqubo yokujikeleza. Izisombululo kwi-tank nganye, ezizezi isisombululo se-asidi kunye ne-alkali, isisombululo se-electroplating, ukukhupha ukukhanya kunye nesisombululo se-passivation, njl.njl., ziphinda zisetyenziswe kuphela kwaye azivuzi okanye zikhutshwe ngaphandle kwenkqubo. Umgca wemveliso uneetanki zokucoca ezi-5 kuphela, ezisebenzisa ukujikeleza. Sebenzisa kwakhona kwaye ukhuphe rhoqo, ngakumbi kwiinkqubo zemveliso ezingavelisi amanzi amdaka ngaphandle kokucoca emva kokukhupha.
(2) Ubunjani bezixhobo zokufaka i-electroplating
Ukufakelwa kweepayipi ezigayiweyo ngombane kunye nokufakelwa kweentambo zobhedu ngombane kuyafana nokufakelwa kweentambo zombane ngokuqhubekayo, kodwa izixhobo zokufakelwa zahlukile. Itanki yokufakelwa yenziwe ngohlobo oluthambileyo lwentambo yesinyithi. Umzimba wetanki mide, ibanzi kodwa ayinzulu. Ngexesha lokufakelwa kweentambo, iingcingo zesinyithi zidlula kwimingxunya zize zisasazeke kumphezulu wolwelo kumgca othe tye, zigcina umgama phakathi kwazo. Nangona kunjalo, ipayipi egayiweyo yahlukile kwintambo yesinyithi kuba ineempawu zayo ezizodwa kwaye izixhobo zetanki ziyinkimbinkimbi ngakumbi. Umzimba wetanki wenziwe ngamalungu aphezulu nangaphantsi. Inxalenye ephezulu yitanki yokufakelwa kwaye inxalenye esezantsi yitanki yokugcina ukujikeleza kwesisombululo, yenza umzimba wetanki ofana netrapezoid omfutshane phezulu kwaye ubanzi ezantsi. Kukho umjelo wokusebenza kwe-electroplating yepayipi egayiweyo kwitanki yokufakela. Kukho imingxunya emibini ezantsi kwetanki enxibelelana netanki yokugcina esezantsi, kwaye yenza inkqubo yokuphinda usebenzise isisombululo sokufakela ngepompo engaphantsi komhlaba. Ke ngoko, iipayipi ezigayiweyo ziyafana nokufakelwa kwentsimbi yesinyithi, kwaye iindawo ezigayiweyo zinamandla. Nangona kunjalo, ngokungafaniyo ne-iron wire plating, isisombululo se-plating seepayipi ze-galvanized naso siyatshintshatshintsha.
(3) Ukuphucula i-sulfate galvanizing
Iingenelo ze-sulfate galvanizing kukuba ukusebenza kakuhle kwangoku kuphezulu nge-100% kwaye izinga lokufakwa likhawuleza, nto leyo engenakuthelekiswa nezinye iinkqubo ze-galvanizing. Ngenxa yokuba i-crystallization yengubo ayilunganga ngokwaneleyo, amandla okusasazwa kunye nobuchule bokufaka i-deep plating alungile, ngoko ke ifanelekile kuphela kwiipayipi zokufaka kunye neentambo ezineemilo zejometri ezilula. Inkqubo ye-sulfate electroplating zinc-iron alloy iphucula inkqubo yendabuko ye-sulfate galvanizing. Yi-zinc sulfate yetyuwa ephambili kuphela egcinwayo, kwaye ezinye izinto ziyalahlwa. Isixa esifanelekileyo setyuwa yesinyithi songezwa kwifomula entsha yenkqubo ukwenza i-zinc-iron alloy coating evela kwi-single metal coating yokuqala. Ukulungiswa kwakhona kwenkqubo akuzisi nje kuphela iingenelo zokusebenza kakuhle kwangoku okuphezulu kunye nesantya sokufaka ngokukhawuleza kwenkqubo yokuqala, kodwa kukwaphucula kakhulu amandla okusasazwa kunye nobuchule bokufaka i-deep plating. Kwixesha elidlulileyo, iindawo ezintsonkothileyo bezingenakufakelwa, kodwa ngoku zombini iindawo ezilula nezintsonkothileyo zinokufakelwa i-plating, kwaye ukusebenza kokukhusela kukwaphezulu ngokuphindwe kathathu ukuya kahlanu kunentsimbi enye. Indlela yokuvelisa ibonakalise ukuba xa isetyenziselwa ukufakelwa iingcingo kunye neepayipi ngombane rhoqo, iinkozo zokugquma zicolekile kwaye zikhanya ngakumbi kunezo zokuqala, kwaye izinga lokufumba liyakhawuleza. Ubukhulu bokugquma bufikelela kwimfuneko kwimizuzu emi-2 ukuya kwemi-3.
(4) Ukuguqulwa kwe-sulfate zinc plating
I-sulfate electroplating ye-zinc-iron alloy igcina kuphela i-zinc sulfate, ityuwa ephambili ye-sulfate zinc plating. Izinto eziseleyo ezifana ne-aluminium sulfate, i-alum (potassium aluminium sulfate), njl. zingongezwa kwi-plating bath ngexesha lonyango ukuze kuveliswe i-hydroxide enganyibilikiyo. Susa; kwizithako eziphilayo, yongeza i-powdered carbon evutshiweyo ukuze izisuse ngokuzifunxa.
Uvavanyo olwenziwe ngabavelisi beepayipi ezigayiweyo lubonise ukuba i-aluminium sulfate kunye ne-potassium aluminium sulfate kunzima ukuzisusa ngokupheleleyo ngaxeshanye kwaye zinefuthe ekukhanyeni kwengubo, kodwa ayibalulekanga kangako kwaye ingasuswa ukuze isetyenziswe. Ngeli xesha, ukukhanya kwengubo kunokubuyiselwa ngonyango ngesisombululo. Yongeza umxholo wezithako ezifunekayo ngokwenkqubo entsha ukuze ugqibezele utshintsho.
Ukuba ufuna ukwazi iinkcukacha ezithe vetshe malunga nombhobho wentsimbi ogqunywe nge-galvanized, nceda unxibelelane nathi.
Qhagamshelana Nathi Ukuze Ufumane Ulwazi Oluthe Ngakumbi
Email: sales01@royalsteelgroup.com(Sales Director)
Umnxeba/i-WhatsApp: +86 136 5209 1506
Ixesha lokuthumela: Epreli-02-2024