Hluav taws xob galvanized:
Hlau yog yooj yim rau xeb nyob rau hauv cov huab cua, dej los yog av, los yog txawm tag nrho puas.Txhua xyoo steel poob vim corrosion nyiaj txog li 1/10 ntawm tag nrho cov khoom siv hlau.Tsis tas li ntawd, txhawm rau muab qhov chaw ntawm cov khoom siv hlau thiab cov khoom ua haujlwm tshwj xeeb, thaum muab lawv lub ntsej muag zoo nkauj, lawv feem ntau raug kho los ntawm electro-galvanizing.
① Txoj Cai:
Txij li zinc tsis yooj yim rau kev sib txawv ntawm cov huab cua qhuav, nyob rau hauv cov huab cua ntub, qhov saum npoo tuaj yeem tsim kom muaj qhov ntom ntom ntom-hom carbonate zaj duab xis, uas tuaj yeem tiv thaiv sab hauv tsis muaj corrosion.
② Cov yam ntxwv ua haujlwm:
1. Cov zinc txheej yog tuab, nrog cov muaju zoo, sib xws thiab tsis muaj porosity, thiab zoo corrosion kuj;
2. Cov zinc txheej tau los ntawm electroplating yog cov ntshiab, thiab corrodes maj mam nyob rau hauv cov huab cua ntawm acid, alkali, thiab lwm yam, thiab muaj peev xwm tiv thaiv cov hlau substrate zoo;
3. Cov zinc txheej yog passivated los ntawm chromic acid los ua dawb, muaj yeeb yuj, tub rog ntsuab, thiab lwm yam, uas yog zoo nkauj thiab zoo nkauj;
4. Vim tias cov zinc txheej muaj cov ductility zoo, nws tuaj yeem tsim los ntawm kev sib tsoo txias, dov, khoov, thiab lwm yam. yam tsis muaj kev puas tsuaj rau txheej.
③ Daim ntawv thov Scope:
Nrog rau txoj kev loj hlob ntawm kev tshawb fawb thiab thev naus laus zis ntau lawm, cov teb koom nrog hauv kev lag luam electroplating tau dhau los ua ntau thiab ntau dua.Tam sim no, daim ntawv thov ntawm electro-galvanization tau kis mus rau ntau qhov chaw tsim khoom thiab kev tshawb fawb.
Kub galvanized:
Ⅰ.Txheej txheem cej luam:
Nyob rau hauv txheej txheej ntawm ntau yam kev tiv thaiv steel matrix, kub dip yog zoo heev.Nws yog nyob rau hauv ib lub xeev uas cov zinc yog kua, tom qab ib tug kuj complex physics, tshuaj, tsis tsuas yog ib tug thicker ntshiab zinc txheej tsis tsuas plated rau cov hlau, tab sis kuj zinc-ferrous txheej.Txoj kev plating no tsis yog tsuas yog muaj kev tiv thaiv corrosion ntawm hluav taws xob galvanization, tab sis kuj yog vim muaj zinc hlau alloy txheej.Nws kuj muaj zog tiv thaiv electroplated zinc.Yog li ntawd, txoj kev plating no tshwj xeeb tshaj yog haum rau qhov chaw muaj zog corrosive xws li ntau yam muaj zog acid, alkaline pos huab.
Ⅱ.Txoj Cai:
Cov txheej kub-dip galvanized yog zinc hauv cov kua kub kub, thiab yog tsim los ntawm peb kauj ruam:
1. Hlau-raws li nto yog yaj los ntawm zinc tov los ua ib theem zinc-ferrous;
2. Zinc ions nyob rau hauv lub alloy txheej yog ntxiv diffused rau lub substrate los ua ib tug zinc hlau intercollation txheej;
3. qhov saum npoo ntawm cov txheej txheej alloy yog kaw rau hauv zinc txheej.
Ⅲ.Cov yam ntxwv ntawm kev ua haujlwm:
(1) Muaj cov tuab tuab ntshiab zinc txheej npog rau saum npoo ntawm cov hlau, uas zam kev sib cuag ntawm cov hlau matrix los ntawm cov tshuaj tiv thaiv corrosion los tiv thaiv cov hlau matrix los ntawm corrosion.Nyob rau hauv cov huab cua dav dav, qhov saum npoo ntawm zinc txheej tsim ib txheej ntawm nyias thiab intimate zinc oxide txheej, uas yog ib qho nyuaj rau solute nyob rau hauv dej, yog li cov hlau matrix plays ib tug tej yam kev tiv thaiv nyhuv.
(2) Nrog cov hlau-zinc alloy txheej, ua ke nrog ntom ntom, nyob rau hauv marine ntsev humex huab cua thiab chaw ua lag luam pom tau tias nws tsis muaj corrosion kuj;
(3) Txij li kev sib xyaw ua ke yog ruaj khov, zinc-hlau yog solubilized, nws muaj zog hnav tsis kam;
(4) Txij li cov zinc muaj cov ductility zoo, cov txheej txheej hlau yog ruaj khov rau cov hlau, yog li cov khoom kub plating tuaj yeem ua rau txias-plated, dov, txhuam, nkhaus, thiab zoo li yam tsis muaj kev puas tsuaj rau txheej;
(5) Tom qab kub galvanization ntawm steel finisse, nws yog sib npaug rau annealing kev kho mob, uas yuav ua tau zoo txhim kho cov neeg kho tshuab zog ntawm cov hlau matrix, tshem tawm cov kev nyuaj siab ntawm cov hlau molding vuam, uas yog zoo rau tig lub steel structural tswv cuab.
(6) Qhov saum npoo ntawm cov khoom tom qab kub galvanization yog ci thiab zoo nkauj.
(7) Cov zinc txheej ntshiab yog cov yas-yas-plated galvanized feem ntau hauv cov kub galvanized, uas yog ze rau cov zinc ntshiab, ductility, yog li nws hloov tau.
Ⅳ.Scope ntawm kev siv:
Daim ntawv thov ntawm kub-dip ghanelyly txoj kev loj hlob ntawm industrial thiab ua liaj ua teb kev loj hlob.Yog li ntawd, cov khoom kub-dip ghared yog cov khoom lag luam (xws li cov cuab yeej siv tshuaj, kev ua roj, kev tshawb nrhiav hauv hiav txwv, cov qauv hlau, kev xa hluav taws xob, kev tsim nkoj, thiab lwm yam), kev ua liaj ua teb (xws li: sprinkling), architecture (xws li kev xa dej thiab roj, xaim teeb Tube, scaffolding, tsev, thiab lwm yam), choj, tsheb thauj mus los, thiab lwm yam. tau siv ntau xyoo tsis ntev los no.
Txij li cov khoom kub-dip galvanized muaj qhov zoo nkauj zoo nkauj, kev ua haujlwm zoo corrosion kuj, nws daim ntawv thov ntau zuj zus.
Post lub sij hawm: Jan-29-2023