Kub-dip galvanizingyog ib txoj kev siv dav dav rau kev tiv thaiv hlau thiab hlau los ntawm kev xeb. Cov txheej txheem no suav nrog kev muab cov hlau tso rau hauv ib da dej ntawm cov zinc molten, uas tsim cov txheej txheem tiv thaiv zoo. Cov hlau galvanized uas tshwm sim yog cov uas tiv taus xeb heev thiab tuaj yeem tiv taus cov xwm txheej ib puag ncig hnyav. Txawm li cas los xij, kev ua tiav cov txiaj ntsig zoo tshaj plaws yuav tsum ua raws li cov kev cai tshwj xeeb thiab cov kev coj ua zoo tshaj plaws. Tsab xov xwm no nkag mus rau hauv cov kev cai tseem ceeb rau kev kub-dip galvanizing kom ntseeg tau tias muaj txiaj ntsig zoo thiab ruaj khov.
1. Kev Xaiv Khoom Siv
Qhov yuav tsum tau ua ntej rau kev kub-dip galvanizing yog kev xaiv cov ntaub ntawv tsim nyog. Tsis yog txhua yam hlau tsim nyog rau cov txheej txheem no. Feem ntau, hlau thiab hlau yog cov neeg sib tw tseem ceeb. Cov khoom sib xyaw ntawm cov hlau tuaj yeem cuam tshuam rau qhov zoo ntawmkev pleev xim galvanizingPiv txwv li, qhov muaj cov khoom xws li silicon thiab phosphorus hauv hlau tuaj yeem cuam tshuam rau qhov tuab thiab qhov tsos ntawm cov txheej zinc. Yog li ntawd, nws yog ib qho tseem ceeb uas yuav tsum xaiv cov ntaub ntawv uas muaj kev tswj hwm thiab paub cov khoom sib xyaw kom ua tiav cov txiaj ntsig zoo sib xws.
2. Kev Npaj Nto
Kev npaj qhov chaw yog ib kauj ruam tseem ceeb hauv kev sivkub-dip galvanizingtxheej txheem. Qhov chaw hlau yuav tsum huv thiab tsis muaj cov khoom tsis huv xws li roj, roj, xeb, thiab cov nplai zeb. Tej yam tsis huv tuaj yeem tiv thaiv zinc kom tsis txhob lo rau zoo, ua rau cov txheej tsis zoo. Kev npaj nto feem ntau muaj peb theem:
- Kev Tshem Tawm Roj: Tshem tawm cov organic contaminants siv cov kua alkaline lossis cov kuab tshuaj.
- Pickling: Tshem tawm xeb thiab nplai siv cov kua qaub, feem ntau yog hydrochloric lossis sulfuric acid.
- Fluxing: Kev siv cov kua flux, feem ntau yog zinc ammonium chloride, los tiv thaiv kev oxidation ua ntej muab tso rau hauv cov zinc uas yaj.
Kev npaj qhov chaw kom zoo ua kom muaj kev sib txuas zoo ntawm cov hlau thiab cov txheej zinc, ua kom cov galvanizing ruaj khov thiab ua haujlwm tau zoo.
3. Cov Khoom Siv Hauv Chav Dej Thiab Kub
Cov khoom sib xyaw thiab qhov kub ntawm lub dab dej zinc yog cov yam tseem ceeb hauv cov txheej txheem galvanizing kub. Lub dab dej zinc yuav tsum muaj tsawg kawg 98% zinc ntshiab, nrog rau feem pua ntawm cov khoom xws li txhuas, txhuas, thiab antimony los txhim kho cov yam ntxwv ntawm cov txheej. Qhov kub ntawm lub dab dej feem ntau yog ntawm 820 ° F thiab 860 ° F (438 ° C txog 460 ° C). Kev tswj qhov kub kom raug yog qhov tseem ceeb rau kev ua tiav cov txheej zoo sib xws thiab zoo. Kev hloov pauv tuaj yeem ua rau muaj qhov tsis zoo xws li qhov tuab tsis sib xws, kev nplaum tsis zoo, thiab qhov ntxhib ntawm qhov chaw.
4. Lub Sijhawm Raus Dej
Lub sijhawm raus dej hauv lub dab dej zinc yog lwm qhov tseem ceeb. Nws nyob ntawm qhov tuab thiab qhov loj ntawmhlau uas tau galvanizedFeem ntau, cov hlau raug muab tso rau hauv dej kom txog thaum nws mus txog qhov kub ntawm lub dab dej, ua rau cov zinc tsim cov hlau sib txuas nrog cov hlau. Kev muab tso rau hauv dej ntau dhau tuaj yeem ua rau cov txheej tuab ntau dhau, thaum kev muab tso rau hauv dej tsawg dhau tuaj yeem ua rau tsis muaj kev tiv thaiv txaus. Yog li ntawd, kev tswj hwm lub sijhawm muab tso rau hauv dej kom meej yog qhov tsim nyog kom ua tiav cov txheej tuab thiab zoo.
5. Kev Kho Mob Tom Qab Galvanizing
Tom qab cov hlau raug tshem tawm ntawm lubchav dej zinc, nws dhau los ntawm kev kho mob tom qab galvanizing los txhim kho cov yam ntxwv ntawm cov txheej. Cov kev kho mob no yuav suav nrog kev quenching hauv dej lossis cua txias kom khov cov txheej zinc sai sai. Tsis tas li ntawd, kev kho mob passivation tuaj yeem siv los tiv thaiv kev tsim cov xeb dawb, ib hom xeb uas tuaj yeem tshwm sim ntawm cov chaw galvanized tshiab. Kev tuav thiab khaws cia cov ntaub ntawv galvanized kom zoo kuj tseem ceeb heev rau kev tswj hwm kev ncaj ncees ntawm cov txheej.
6. Kev Tshuaj Xyuas thiab Kev Tswj Xyuas Zoo
Thaum kawg, kev tshuaj xyuas kom zoo thiab kev tswj xyuas zoo yog qhov tseem ceeb heev kom ntseeg tau tias muaj kev vam meej ntawmkub-dip galvanizingcov txheej txheem. Kev tshuaj xyuas feem ntau suav nrog kev ntsuam xyuas pom, kev ntsuas tuab, thiab kev sim kev nplaum. Cov qauv xws li ASTM A123/A123M muab cov lus qhia rau qhov tuab thiab zoo ntawm cov txheej txheem. Kev ua raws li cov qauv no ua kom ntseeg tau tias cov khoom galvanized ua tau raws li cov qauv kev ua tau zoo thiab muab kev tiv thaiv ntev tiv thaiv xeb.
Xaus lus
Kev siv galvanizing kub-dip yog ib txoj hauv kev zoo rau kev tiv thaiv cov hlau thiab hlau los ntawm kev xeb, tab sis nws yuav tsum tau ua tib zoo saib xyuas kom meej thiab ua raws li cov kev cai tshwj xeeb. Txij li kev xaiv cov khoom siv thiab kev npaj nto mus rau kev sib xyaw ua ke ntawm cov dej da dej, lub sijhawm raus dej, thiab kev kho tom qab galvanizing, txhua kauj ruam ua lub luag haujlwm tseem ceeb hauv kev ua tiav cov txheej txheem galvanized zoo thiab ruaj khov. Los ntawm kev ua raws li cov kev coj ua zoo tshaj plaws no thiab tswj hwm kev tswj hwm zoo, cov chaw tsim khoom tuaj yeem ua kom ntseeg tau tias lawv cov khoom galvanized muab kev ua tau zoo tshaj plaws thiab lub neej ntev.
Lub sijhawm tshaj tawm: Cuaj hlis-18-2024