Qhov sib txawv thiab daim ntawv thov ntawm galvanizing, electrophoresis thiab txau
Hauv kev lag luam hlau ua, cov txheej txheem kho saum npoo ncaj qha cuam tshuam rau cov khoom siv los tiv thaiv corrosion, hnav tsis kam thiab zoo nkauj. Muaj peb txoj kev kho saum npoo av: galvanizing, electrophoresis thiab txau. Lawv txhua tus muaj lawv tus kheej cov yam ntxwv thiab tsim nyog rau kev sib txawv daim ntawv thov scenarios. Peb yuav sib piv thiab txheeb xyuas cov yam ntxwv, qhov zoo thiab qhov tsis zoo thiab daim ntawv thov ntawm peb cov txheej txheem no. Cov ntaub ntawv yog rau siv xwb.
1. Galvanizing
Txheej Txheem Taw Qhia
Galvanizing yog txheej txheem uas tiv thaiv corrosion los ntawm kev npog cov hlau nto nrog txheej zinc, feem ntau suav nrog kub-dip galvanizing thiab electro-galvanizing.
Lub ntsiab nta
Kub-dip galvanizing: raus cov khoom hlau nyob rau hauv high-temperature zinc tov los tsim ib txheej zinc txheej ntawm nws nto.
● Zinc txheej thickness: 50-150μm
● Corrosion kuj: zoo heev, haum rau sab nraum zoov ib puag ncig
● Deg lub xeev: ntxhib, silver-grey, zinc paj yuav tshwm sim
Electrogalvanizing
Ib txheej zinc yog tso rau ntawm cov hlau nto los ntawm cov txheej txheem electrolytic los tsim cov txheej txheem nyias.
Zinc txheej thickness: 5-30μm
Corrosion kuj: General, haum rau sab hauv tsev ib puag ncig
Nto lub xeev: du, siab brightness
Muaj cov xwm txheej
● Kub-dip galvanizing: choj qauv,kev txhawb nqa tsev, fais fab pej thuam, sab nraum zoov pipelines, hnyav machinery, thiab lwm yam.
● Electrogalvanizing: me me fasteners, sab hauv hlau qhov chaw, cov khoom siv hauv tsev, cov khoom siv tsheb, thiab lwm yam.
Qhov zoo thiab qhov tsis zoo
Qhov zoo: muaj zog tiv thaiv corrosion, kev lag luam thiab ruaj khov, kub-dip galvanizing yog tsim rau qhov hnyav hnyav
Qhov tsis zoo: Electrogalvanizing muaj qhov tsis muaj zog tiv thaiv corrosion, thiab saum npoo ntawm kub-dip galvanizing yog ntxhib, uas tuaj yeem cuam tshuam rau cov tsos.
2. Electrophoretic Txheej
Txheej Txheem Taw Qhia
Electrophoretic txheej yog txheej txheej txheej txheej uas siv hluav taws xob ua kom cov xim ua kom sib npaug ntawm cov hlau. Nws yog dav siv hauv tsheb, khoom siv hauv tsev thiab lwm yam lag luam.
Cov yam ntxwv tseem ceeb
● Kev siv tshuab anodic lossis cathodic electrophoresis, txheej txheej yog sib xws thiab cov txheej txheej siv tau siab
● Kev tsim cov txheej txheej organic, feem ntau yog siv nrog phosphating lossis galvanizing kev kho mob txhawm rau txhim kho kev ua haujlwm tiv thaiv corrosion.
● Zaj duab xis thickness: 15-35μm (adjustable)
● Xim: xaiv tau (feem ntau yog dub thiab grey)
Muaj cov xwm txheej
● Tsheb qhov chaw (ncej, ncua kev kawm ntawv, nres caliper)
● Lub tsev kho vajtse (hlau brackets, fasteners, yeeb nkab fittings)
● of the elevator rails, mechanical parts
Qhov zoo: txheej txheej, muaj zog adhesion, zoo tiv thaiv corrosion, kev tiv thaiv ib puag ncig thiab txuag hluav taws xob
Disadvantages: complex txheej txheem khiav, siab yuav tsum tau rau cov khoom siv, thiab tus nqi pib siab
3. Txau
Txheej Txheem Taw Qhia
Kev txau yog muab faib ua hmoov txau (electrostatic spraying) thiab kua txau. Cov hmoov txau siv electrostatic ua kom cov hmoov adsorb ntawm cov hlau nto thiab tsim cov txheej txheem los ntawm kev kub kub; Cov tshuaj txau siv cov phom txau ncaj qha rau cov xim pleev xim, uas yog ib txwm muaj nyob rau hauv scenes xav tau cov xim nplua nuj.
Cov yam ntxwv tseem ceeb
Hmoov txau:
● Txheej thickness: 50-200μm
● Zoo heev hnav tsis kam thiab corrosion kuj, haum rau sab nraum zoov thiab kev lag luam ib puag ncig
Ib puag ncig tus phooj ywg, hnyav-dawb
Liquid spray painting:
● Txheej thickness: 10-50μm
● Cov xim nplua nuj, haum rau kev kho kom zoo nkauj
● Kev kho hauv zos tuaj yeem ua tau
Muaj cov xwm txheej
● Cov tshuaj tsuag hmoov: cov khoom siv hauv tsev, guardrails, hluav taws xob vaj tse, khoom siv sab nraum zoov
● Cov tshuaj pleev xim ua kua: cov khoom siv hauv tsev siab, cov khoom siv hlau zoo nkauj, cov paib
Qhov zoo: hmoov txau muaj txheej tuab thiab ua haujlwm zoo; kua tshuaj pleev xim pleev xim muaj xim nplua nuj thiab ntau yam kev siv
Disadvantages: hmoov txau tsis tuaj yeem kho hauv zos, thiab cov tshuaj pleev xim ua kua tsis zoo ib puag ncig
Cov lus qhia xaiv:
● Yuav tsum muaj kev tiv thaiv corrosion zoo heev (xws li txuas hniav, lub zog yees, elevator steel qauv) → Kub dip galvanizing
● Yuav tsum tau du nto thiab dav tiv thaiv corrosion (xws li fasteners, nws pib qhov chaw) → Electrogalvanizing
● Yuav tsum muaj cov txheej txheem zoo sib xws thiab muaj kev tiv thaiv corrosion siab (xws li of the elevator guide rails, auto parts) → Electrophoretic coating
● Xav tau kev hnav zoo thiab tiv thaiv huab cua (xws li lub tsev brackets, hluav taws xob vaj tse) → hmoov txau
● Xav tau cov yeeb yuj zoo nkauj thiab kho kom zoo nkauj (xws li cov khoom siv hauv tsev, cov ntawv kos npe) → Cov kua dej pleev xim
Cov txheej txheem sib txawv muaj lawv tus kheej yam ntxwv. Xaiv txoj kev kho saum npoo zoo yuav tsum tau ua raws li cov khoom siv ib puag ncig, kev ua haujlwm thiab kev xav txog tus nqi. Xinzhe Hlau Cov Khoom tuaj yeem muab cov kev daws teeb meem saum npoo raws li cov neeg siv khoom xav tau, txais tos sab laj!
Post lub sij hawm: Apr-03-2025