Galvanized steel yog dav siv nyob rau hauv tsheb lub cev panels, cov khoom siv hauv tsev, lub zog cia, thiab cov khoom siv hluav taws xob vim nws zoo heev corrosion kuj.
Txawm li cas los xij, thaum lub sij hawm vuam, zinc txheej tuaj yeem vaporize, ua rau tawg, porosity, thiab txo lub zog vuam.
Xaiv ib qho chaw ruaj khov thiab meej welder-tshwj xeeb yog a qhov chaw vuam tshuab-yog qhov tseem ceeb. Tab sis txawm tias lub tshuab zoo tshaj plaws yuav tsum muaj kev saib xyuas kom ntseeg tau ntev - lub sij hawm vuam zoo.
Cov ntaub ntawv kev lag luam qhia tau hais tias ib qhov dej zoo -kev txhim kho kev txhim kho tuaj yeem txo qhov tsis xws ntawm vuam los ntawm 20-40% thiab cov khoom siv tsis ua haujlwm ntau dua 30%. Ntawm no yog ib daim ntawv qhia dav dav, kev ua haujlwm tau zoo.
1. Tsis tu ncua Electrode Maintenance: Tus yuam sij rau ruaj khov Welds
Qhov teeb meem tshaj plaws thaum vuam galvanized steel yog zinc adhesion ntawm electrode, uas cuam tshuam cov dej ntws tam sim no thiab vuam sib xws.
Electrode Maintenance Guidelines:
- Kev soj ntsuam zaus:Xyuas txhua 80-120 welds (nyob ntawm zinc thickness thiab cov khoom batch)
- Txoj kev trimming:
Siv lub log sib tsoo los yog cov khoom siv electrode trimmer
Khaws cov lus qhia electrode symmetrical kom tsis txhob hnav tsis sib xws
Pom zoo lub kaum sab xis: 60-120 degree
- Ntsuas electrode cap ntevtsis tu ncua kom tsis txhob hnav ntau dhau
Cov Ntaub Ntawv Kev Lag Luam (IIW):
Cov txheej txheem trimming tuaj yeem txuas lub neej electrode los ntawm 15-25% thiab txhim kho qhov sib xws ntawm kwv yees li 20%.
2. Txias System Maintenance: Tiv thaiv electrode Burnout thiab kub lwj
Galvanized steel xav tau cov cua kub ntau dua, ua rau kev tswj xyuas thermal tseem ceeb.
Kev Tshawb Fawb Txhua Hnub:
- Cov dej txias ntws ntau dua lossis sib npaug li 2 L / min
- Qhov kub nce qis dua lossis sib npaug li 8-10 degree
- Qhov hluav taws xob dej kub tsawg dua lossis sib npaug li 30 degree
Kev Tshawb Fawb Txhua Lub Limtiam:
- Ntxuav cov lim kom tshem tawm cov nplai thiab cov khib nyiab
- Tshawb xyuas cov hoses kom tawg, flattening, los yog blockages
Cov cua txias tsis txaus tuaj yeem ua rau cov welds tsis muaj zog, ua kom cov electrode hnav, thiab ua rau lub tshuab hluav taws xob kub dhau lub tswb.
3. Ua kom zoo dua MFDC Welding Parameters: Txo Zinc Evaporation thiab txhim kho Weld Strength
MFDC qhov chaw weldersmuab kev ruaj ntseg tam sim no thiab kev tswj cov cua sov, zoo tagnrho rau cov hlau galvanized.
Pom zoo Parameter Kho:
- Vuam tam sim no:20-30% qis dua li cov pa AC welders
- Weld lub sijhawm:Txo los ntawm 10-20%
- Siab:Ua kom ruaj khov kom txo qhov porosity
Qhov zoo ntawm MFDC Technology:
- 800-2000Hz zaus → nce cua sov ua haujlwm los ntawm 15-20%
- Nruam DC tso zis → zam AC xoom- hla kev hloov pauv
- Millisecond -theem tswj (0.25ms) → ua kom cov vuam sib xws
- Txo spatter thiab txhim kho lub zog ntawm cov khoom
4. Kev Npaj Nto: Txo qhov vuam tsis zoo
Roj, oxidation, thiab coatings ntawm galvanized steel nto tuaj yeem txo qhov sib xws.
Pom zoo Kev Npaj Nto:
- Tshem tawm cov roj siv cawv los yog ib puag ncig tus phooj ywg degreasers
- Maj mam grind kom tshem tawm oxides
- Tshem tawm cov plua plav nrog compressed cua
- Yeem: qis-kub plasma tu rau siab -vuam precision
Kev npaj kom zoo tuaj yeem txo qhov porosity ntawm 30-50%.
5. Tsim kom muaj kev saib xyuas thiab kev tswj xyuas qhov system (kho kom zoo dua version muaj).
Qhov no yog cov qauv uas yooj yim tshaj plaws hauv kev ua haujlwm siab - cov kab ntau lawm, tab sis nws muaj qhov cuam tshuam loj tshaj plaws ntawm vuam zoo.
1. Tsim kom muaj "kev npaj kho lub sijhawm"
| Kev tshuaj xyuas txhua hnub | Lub lis piam kuaj | Tshawb xyuas txhua hli |
| Electrode zoo thiab roj qhov chaw siab |
Electrode cap hloov ntaub ntawv |
Transformer kub nce |
|
Cov dej txias ntws tus nqi thiab qhov kub thiab txias |
Cua txias system lim | Stability ntawm servo pressurization system |
| Solder sib koom zoo li thiab spatter tus nqi | Conductivity ntawm vuam cables thiab vuam taub hau | Tam sim no waveform sib txawv ntawm intermediate zaus xws li |
2. Khoom siv & Parameter Database
Tsim ib tug database rau txhua yam khoom batch:
Cov khoom siv thiab zinc txheej thickness (piv txwv li, 60g / m², 90g / m², 120g / m²)
Qhov zoo tshaj plaws welding parameter
Peel lub zog thiab weld zoo sib xws
Cov ntaub ntawv- cov txheej txheem tsav tsheb txhim kho kev ruaj khov ntawm 20–40%.
3. Kev Saib Xyuas Lub Luag Haujlwm & Kev Tshawb Fawb
Muab lub luag haujlwm rau txhua qhov haujlwm
Sau tag nrho cov kev saib xyuas digitally (Excel, MES, lossis EAM systems)
Sau tag nrho cov kev txawv txav rau traceability
Kev taug qab kom raug tuaj yeem txo qis kev poob qis los ntawm ntau dua 30%.
Xaus
Nruab nrab- zaus thev naus laus zis ua kom pom qhov zoo ntawm cov ntawv galvanized, tab sis kev saib xyuas txhua hnub tseem tseem ceeb sib npaug. Kev saib xyuas electrode tsis tu ncua, kev kuaj xyuas qhov ntsuas cua txias, qhov ntsuas qhov ua kom zoo, kev kho saum npoo, thiab kev tiv thaiv kev nyab xeeb pab ua kom cov cuab yeej ua tau zoo.
Kev ua raws li cov kev tswj xyuas no tsis yog tsuas yog txhim kho vuam zoo xwb tab sis kuj tseem txuas ntxiv cov cuab yeej siv, tsim kom muaj txiaj ntsig ntau dua rau cov lag luam. Xaiv txoj caiqhov chaw vuam tshuabthiab tswj nws kom raug muab kev ruaj ntseg rau siab - zoo galvanized ntawv vuam daim ntawv thov.
