Hauv cov khoom siv hauv tsev tsim, lub hom phiaj ntawm galvanizingSGCCHlau yog los tiv thaiv corrosion. Cov txheej zinc zinc tiv thaiv lub substrate los ntawm kev txi anodes, nthuav tawm cov kev pab cuam lub neej xws li lub cav txias thiab txias rov qab rau hauv cov chaw noo noo; Txhim kho cov txheej txheem, optimizing hlau thiab vuam kev kawm; Lub rooj sib tham tsos qhov xav tau, Zinc Paj / Tsis muaj zinc paj nto yog haum rau txau lossis coj ncaj qha; Tus nqi ua nqi zoo dua, hloov cov hlau uas tsis muaj nqi ntawm tus nqi qis, haum rau cov khoom xws li micringave cub plhaub.
Galvanizing ua cov khoom siv hauv tsev cov khoom siv puv, tsim khoom thiab raug nqi.
SGCC Steel Galvanizing (GI) yuav muab faib ua peb theem: kev kho mob ua ntej, thiab kev kho mob tom qab.
1. Pretreatment (tshem tawm ntawm cov khoom qias neeg saum npoo av)
Degreasing: Kev daws teeb meem alkaline (60-80 degree) kom tshem tawm roj thiab hmoov av
Pickling: Hydrochloric acid (15-20%) kom yaj hlau hlau oxide (cov kev xav tau lub sijhawm 1-3 feeb)
Dej Ntxuav: Dej tawm los yaug cov kua qaub
PLATING ABLATION: Riam ntuj nhhivers · nhh₄l daws (80-120g / l) los ua yeeb yaj kiab tiv thaiv kom tiv thaiv oxidation
2. Kub-DIP Galvanizing (Core Txuas)
ZINC QAUB QUARAMITION: 99.995% ntshiab zinc lossis zn-0.2% al alloy
Zinc Immersion kub: 445-475℃(kom tsis txhob muaj cov tshuaj tiv thaiv ntau dhau ntawm cov hlau thiab zinc)
Zinc Kev Tiv Thaiv: 3-10 vib nas this (kho raws li cov tuab ntawm cov hlau strip)
Cov Riam Tshuab Cov Tshuab Cua Thickness: Cov Cua Siab (0.2-0.5Mpa) Purging, Kho kom tswj hwm ntawm Zinc Txheej (40-180G / M²)
3. Tom qab kev kho mob (txhim kho kev ua haujlwm)
Cua txias: Ntuj txias (loj zinc paj) lossis yuam kom txias (me me zinc paj)
Passivation: chromate / chrome-passivation (xws li kev ua si) kom tiv thaiv dawb xeb
Cov roj txheej: ntiv tes-resistant roj lossis tiv thaiv xeb roj xeb
Xov: Rolling kom tau txais zinc-dawb iav nto (ra tsawg dua los yog sib npaug rau 0.6μm)
Ua ib lub tuam txhab steel ua, peb lub tuam txhab muaj cov txheej txheem kub hauv qab no galvaning:
Kho cov txheej tswj kev tswj hwm: Cov Hluav Taws Xob Cov Hluav Taws Xob Hluav Taws Xob thiab cov kev hloov kho AI Dyninding yog siv los ua tiav cov txheej txheem kev lag luam ntawm ± 10G / M², kom ruaj khov thiab txhim khu kev qha cov khoom lag luam zoo.
Kev tsim tawm tshiab Alloy: cov tshwj xeeb ZN-al-mg ntau cov khoom lag luam los ntawm cov khoom lag luam los ntawm 300 teev, uas yog tshwj xeeb yog tsim nyog rau kev siv hluav taws xob.
Cov txheej txheem ntau lawm: chromium-free passivation thev naus laus zis kev lag luam ib puag ncig cov txheej txheem thiab ntsib thoob ntiaj teb ib puag ncig cov qauv xws li EU ncav cuag.
Cov neeg txawj ntse heev: Nruab nrog cov txheej txheem tswj digital los ntawm kev siv zog ntau lawm los ntawm 30%, tswj cov khoom siv hluav taws xob ntau dua 0.5%, thiab muaj kev txhim kho ntau dua.
Los ntawm kev hloov pauv nruam qhov kev lag luam, peb muab cov neeg siv khoom lag luam hauv ntau yam kev lag luam nrog ntau dua ruaj khov, ntau lub neej zoo ib puag ncig thiab ntau dua galvanizing cov kev daws teeb meem.
