Galvanized steel txheej txheem ntws
cov khoom siv thev naus laus zis
Cov txheej txheem galvanized yog raws li nram no:
Tshuaj degreasing → dej kub ntxuav → dej ntxuav → hluav taws xob degreasing → dej kub ntxuav → muaj zog corrosion → dej ntxuav → hluav taws xob galvanized hlau alloy → dej ntxuav → teeb tawm → passivation → dej ntxuav → ziab (qhov kub hauv qhov cub yog {{0 }} degrees).
Electrogalvanizing: tseem hu ua txias galvanizing nyob rau hauv kev lag luam, yog cov txheej txheem ntawm kev siv electrolysis los ua ib tug uniform, ntom thiab zoo-combined hlau los yog alloy deposition txheej rau ntawm qhov chaw.
Piv nrog rau lwm cov hlau, zinc yog ib qho pheej yig thiab yooj yim rau txheej hlau, uas tsis tshua muaj nqi los tiv thaiv corrosion txheej, yog dav siv los tiv thaiv steel qhov chaw, tshwj xeeb tshaj yog tiv thaiv atmospheric corrosion, thiab kho kom zoo nkauj. Plating technologies muaj xws li zawj plating (los yog dai plating), yob plating (rau me me), plating xiav, tsis siv neeg plating thiab nruam plating (rau hlau thiab sawb)
Kub dip galvanizing txheej txheem khiav:
1. Xyuas ua ntej ntxuav
Kev soj ntsuam lub hauv paus ntsiab lus: ceev faj, ceev faj, thaum tsim nyog los ua cov ntaub ntawv tsim nyog.
Xyuas cov ntsiab lus: feem ntau xyuas cov khoom, qhov loj thiab cov qauv ntawm cov khoom tuaj, seb puas muaj deformation, seb puas muaj xim, roj thiab lwm yam av adhesion.
2, kev kho ua ntej: raws li cov qauv duab ntawm cov khoom plated, qhov tsim nyog npaj rau xuas nrig ntaus, peg dai thiab lwm yam ntaub ntawv.
3, degreasing: rau cov khoom uas muaj xim thiab roj yuav plated, degreasing kev kho mob. Degreasing kub: ntau dua los yog sib npaug rau 70 degree; Concentration: Ntau dua lossis sib npaug li 7%; Sijhawm: nyob ntawm qhov yuav tsum tau plated.
4, ntxuav: cov khoom degreased yuav tsum tau plated rau kev kho mob, kom nws cov PH nqi qis dua 10, txhawm rau pab txhawb rau theem tom ntej ntawm kev tshem tawm xeb.
5. Pickling thiab xeb tshem tawm.
Cov kev xav tau ntawm kev sib tsoo thiab pickling:
(1) Ua raws li cov lus qhia tshwj xeeb ntawm kev tsav tsheb rau kev ua haujlwm blanking.
(2) Cov khoom siv pickling yuav tsum raug xaiv raws li cov khoom siv, kom muaj nuj nqis thiab cov qauv ntawm cov khoom plated. Nco ntsoov tawm ntawm qhov sib txawv rau cov khoom plated yuav tsum tau ntim thiab ntxuav kom tsis txhob muaj superposition thiab overstock.
(3) Cov khoom yuav tsum tau plated yuav tsum tau tig ntau zaus thaum pickling. Xyuas kom meej tias tsis muaj qhov xau, overwashing, hlau clamping, vortex gas, cais thiab lwm yam tshwm sim. Lub sijhawm khaws cia ntawm cov khoom ntab thiab poob pas dej ua ke los ntawm kev tig thiab lwm yam laj thawj.
(4) nruj me ntsis tswj lub sij hawm pickling, thiab cov dub qhov chaw nyob rau hauv lub acid tank yuav tsum tau accounted kom meej meej thaum lub sij hawm hloov los yog hloov lawm. Tsis txhob ntub cov khoom dub hauv cov kua qaub rau lub sijhawm ntev.
(5) Rau cov khoom dub uas tau ntxuav, cov txheej txheem tom ntej yuav tsum tau ua raws sijhawm, thiab kom deb li deb tau, nws yuav tsum tiv thaiv kom tsis txhob rov qab los yog muab tso rau hauv huab cua ntev.
