Cov txheej txheem tshuaj Pretreatment Flow ntawm Aluminium

Raws li lub hom phiaj ntawm cov khoom siv txhuas yuav tsum tau kho thiab qhov sib txawv ntawm qhov yuav tsum tau ua rau saum npoo zoo, cov txheej txheem kev kho tshuaj sib txawv hauv qab no tuaj yeem siv tau.
(1) "peb nyob rau hauv ib qho" kev kho mob ua ntej (kev tshem tawm roj, tshem tawm cov oxide zaj duab xis, thiab cov hmoov tshauv tshem tawm yog ua tiav nyob rau hauv tib lub tank kho) → dej ntxuav → dej ntxuav → cov txheej txheem tseem ceeb ntawm kev kho aluminium nto.
Kev siv txhuas ntawm "peb hauv ib qho" txheej txheem ua ntej kev kho mob kuj tsawg (kwv yees 0.5 feem pua ​​); Nws yog ib qho kev lag luam tshuaj pretreatment txoj kev uas muaj peev xwm tswj tau cov thawj qhov chaw ci ntsa iab, tab sis nws yog ib qho nyuaj rau tshem tawm me ntsis khawb, pob, thiab burrs ntawm txhuas nto, thiab feem ntau tsis tuaj yeem tshem tawm cov oxide zaj duab xis.
(2) Degreasing → dej ntxuav → alkali ntxuav → Secondary dej ntxuav → tshauv tshem tawm → dej ntxuav → txhuas nto kho lub ntsiab txheej txheem.
Cov txheej txheem ua ntej kev kho mob no yog ib txoj kev siv ib txwm siv, nrog rau kev siv cov khoom siv nruab nrab (1.0 feem pua ​​~ 2.0 feem pua ​​). Nws tuaj yeem tshem tawm me ntsis khawb, pob, thiab burrs, tab sis tsis tuaj yeem tshem tawm cov cim extrusion. Cov txheej txheem ntws no yog tsim los tsim cov khoom siv aluminium tiaj tus nrog cov kev xav tau zoo.
(3) Degreasing → dej ntxuav → lub neej ntev alkaline ntxuav → Secondary dej ntxuav → tshauv tshem tawm → dej ntxuav → lub ntsiab txheej txheem ntawm txhuas nto kho.
Cov txheej txheem ua ntej kev kho mob no muaj kev siv aluminium siab (5.0 feem pua ​​~ 7.0 feem pua ​​) thiab tuaj yeem tshem tawm qhov tsis xws luag xws li khawb, pob, thiab burrs, thaum tseem tshem tawm cov cim extrusion. Cov txheej txheem dej ntws no yog tsim los tsim cov khoom siv mos sanded aluminium nrog cov xim hlau ci, tab sis nws qhov tsis zoo yog lub sij hawm ntev alkaline ntxuav thiab siab aluminium noj. Thaum pom tias qhov ntsuas ntawm cov xuab zeb nto tsis txaus ua ntej cov txheej txheem tseem ceeb, lwm txoj kev kho tuaj yeem rov ua dua: alkali ntxuav → kev ntxuav dej thib ob → tshauv tshem tawm → ntxuav dej.
(4) Degreasing → water washing → fluoride sand surface treatment → water washing → alkali washing → secondary water washing → ash removal → water washing>cov txheej txheem tseem ceeb ntawm kev kho aluminium nto.
Txoj kev kho ua ntej no muaj cov khoom siv txhuas tsawg (1.0 feem pua ​​~ 2.0 feem pua ​​) thiab yog ib qho yooj yim los tshem tawm cov cim extrusion, uas ua rau cov tsos ntawm matte sanded aluminium khoom. Qhov tsis zoo ntawm kev xaiv cov txheej txheem no yog cov txheej txheem ntev thiab cov teeb meem ntawm ib puag ncig hauv cov txheej txheem fluoride sand deg kho. Yog tias pom tias cov xuab zeb nto tsis txaus ua ntej cov txheej txheem tseem ceeb, lwm txoj kev kho tuaj yeem rov ua dua: fluoride sand deg kev kho mob → dej ntxuav → alkali ntxuav → ob chav dej ntxuav → tshauv tshem tawm → dej ntxuav.
(5) Degreasing → dej ntxuav → fluoride sand deg kho → dej ntxuav → tshauv tshem tawm → dej ntxuav → aluminium nto kho lub ntsiab txheej txheem.
Txoj kev kho ua ntej no siv kwv yees li 0.5 feem pua ​​​​rau 1.0 feem pua ​​​​ntawm txhuas, ua rau lub ntsej muag muag heev uas tsis pom cov cim extrusion, tab sis cov hlau tsis zoo thiab glossiness. Thaum pom tias qhov ntsuas ntawm cov xuab zeb nto tsis zoo ua ntej cov txheej txheem tseem ceeb, lwm txoj kev kho tuaj yeem rov ua dua: fluoride sand deg kho → dej ntxuav → tshauv tshem tawm → dej ntxuav
(6) Degreasing → dej ntxuav → alkali ntxuav → ob theem ntxuav → tshauv tshem tawm → dej ntxuav → fluoride xuab zeb deg kev kho mob → dej ntxuav → alkali ntxuav → Secondary dej ntxuav → tshauv tshem tawm → dej ntxuav → txhuas nto kho lub ntsiab txheej txheem.
Txoj kev kho ua ntej siv kwv yees li 1.5 feem pua ​​​​rau 2.5 feem pua ​​​​ntawm txhuas rau kev kho mob. Thaum pom tias cov xuab zeb nto tsis txaus ua ntej cov txheej txheem tseem ceeb, lwm txoj kev kho yog rov ua dua: fluoride sand deg kho → dej ntxuav → alkali ntxuav rau ib los yog ob lub voj voog → tshauv tshem tawm → dej ntxuav. Lub ntsiab drawback yog cov txheej txheem txoj kev yog ntev heev, thiab tsuas yog cov ntaub ntawv txhuas nrog cov roj loj loj los yog lub sij hawm cia ntev ntawm qhov chaw raug kho siv cov txheej txheem no.
Lub tank tov rau ntau yam txheej txheem koom nrog hauv kev kho mob ua ntej (degreasing, alkali ntxuav, fluoride xuab zeb kev kho mob, tshem tawm tshauv, thiab dej ntxuav) feem ntau yog npaj nrog dej kais dej. Rau cov tuam txhab uas xav tau zoo, cov dej deionized tuaj yeem siv rau kev ntxuav ua ntej anodizing los tswj cov ntsiab lus impurity coj mus rau hauv cov tshuaj anodizing tank thiab txhim kho cov yeeb yaj kiab anodizing zoo.