1.Dab tsi yog cov cim tseem ceeb rau kev tswj cov dej zoo thaum lub sij hawm yaug cov khaub thuas-rolled coils?
Hluav taws xob conductivity yog qhov tseem ceeb tshaj plaws ntsuas ntsuas, raws li nws qhia tau hais tias tag nrho cov seem ntawm cov ntsev thiab ions nyob rau hauv dej thiab yog ncaj qha cuam tshuam rau kev huv si ntawm daim tawv nqaij tom qab ntxuav.
2.Vim li cas qhov zoo ntawm cov dej yaug yog qhov tseem ceeb rau qhov zoo ntawm cov dej txias -rolled coils? Dab tsi yog qhov tshwm sim ntawm cov dej tsis zoo?
Rinsing yog txheej txheem ntub dej zaum kawg ntawm cov kab mob khaub thuas dov zeb tu kab. Nws lub hom phiaj yog kom huv si tshem tawm alkaline degreasing agents, hlau hmoov, thiab impurities nyob rau hauv daim tawv nqaij tom qab txhuam hniav. Cov dej tsis zoo tuaj yeem ua rau muaj teeb meem hauv qab no:
Cov Nto Ntog: Cov ntsev hauv dej (xws li calcium, magnesium, thiab chloride ions) nyob rau ntawm daim tawv nqaij, ua "dej stains" lossis "dawb pob" tom qab annealing, cuam tshuam rau cov tsos thiab tom qab txheej adhesion.
Secondary Contamination: High suspended solids contents ua rau cov khoom me me re-ua raws li lub strip nto, ua rau "hlau hmoov indentation" tsis xws luag, cuam tshuam rau stamping kev ua tau zoo thiab txheej zoo.
Kev Ruaj Ntseg: Cov ntsiab lus chloride ion ntau dhau tuaj yeem ua rau cov zaj duab xis passivation ntawm cov kab nrib pleb, yooj yim ua rau "daj xeb" lossis "pitting corrosion" hauv qhov chaw ntub dej.
Kev cuam tshuam rau cov txheej txheem tom ntej: Rau galvanized lossis tin- cov khoom siv plated, cov khoom seem ions tuaj yeem ua rau cov txheej txheem plating, ua rau nws lub neej luv thiab ua rau cov txheej txheem tsis xws luag.
Nyob rau hauv luv luv, qhov zoo ntawm cov dej yaug dej yog qhov "thaum kawg hurdle" txiav txim qhov kawg deg huv si ntawm lub sawb.
3.Qhov dej twg feem ntau yog siv los yaug? Yuav ua li cas dej zoo kom ua tau raws li cov qauv?
Cov dej yaug tsis tuaj yeem siv ncaj qha los ntawm cov dej kais dej; nws yuav tsum tau kho. Common process configurations muaj xws li:
Dej Source: Deionized dej los yog rov qab osmosis (RO) dej yog siv los ua dej pleev.
Water Quality Assurance System:
Multi-theem Counter-Tam sim no Yaug: Cov kab tu feem ntau muaj 2-4 lub tso tsheb hlau luam, siv lub txee-tam sim no kev pleev xim dej-tshiab deionized dej yog ntxiv los ntawm theem kawg, ntws los ntawm theem mus rau theem. Cov theem kawg muaj cov dej zoo tshaj plaws, thaum thawj theem muaj qhov tsis zoo tshaj plaws tab sis tseem tuaj yeem siv tau zoo, ua kom cov dej siv tau zoo tshaj plaws.
Kev Saib Xyuas Online thiab Kev Pom Kev Pom Zoo: Cov tso tsheb hlau luam yaug tau nruab nrog cov ntsuas hluav taws xob hauv online thiab pH ntsuas los saib xyuas cov dej zoo hauv lub sijhawm; ib txhij, cov lim dej (10-50μm raug) raug teeb tsa kom tshem tawm cov hmoov hlau tsis tu ncua thiab cov teeb meem.
Kev Hloov Lub Sijhawm: Thaum cov khoom siv hluav taws xob ntau tshaj li qhov pib, qee cov dej khib nyiab tau txiav tawm thiab cov dej tshiab deionized ntxiv los tswj cov dej zoo.
4.Dab tsi yog qhov sib txawv ntawm cov txheej txheem dej yaug dej zoo rau cov khoom sib txawv?
Cov khoom siv hauv tsev zoo tib yam: Tsawg dua lossis sib npaug li 50 μS / cm, feem ntau yog rau degreasing, nrog siab kam rau cov ntsev seem, cov dej demineralized tuaj yeem siv tau.
Cov khoom siv board / galvanized substrate: Tsawg dua los yog sib npaug li 30 μS / cm, chloride ions thiab calcium thiab magnesium ions yuav tsum nruj me ntsis tswj kom tsis txhob "dawb xeb" lossis blistering ntawm txheej.
Automotive txheej vaj huam sib luag (O5): Tsawg dua lossis sib npaug li 10 μS / cm, siv tus qauv "ultrapure water", nrog qee qhov siab -kawg cov kab ntau lawm txawm tias yuav tsum tsawg dua lossis sib npaug li 5 μS / cm, thaum tswj nruj me ntsis raws li qhov loj me (tsawg dua lossis sib npaug li 1μm) kom ntseeg tau tias tsis muaj qhov tsis xws luag.
5.Yuav ua li cas peb thiaj li saib xyuas thiab tswj xyuas qhov zoo ntawm cov dej yaug hauv txhua hnub?
Kev soj ntsuam tas li online:
Lub ntsuas hluav taws xob hauv online tau nruab rau ntawm qhov hluav taws xob ntawm qhov kawg rinsing tank los tso saib cov ntaub ntawv hauv lub sijhawm tiag tiag thiab txuas nrog lub tswb nrov.
Tswb Threshold Setting: Feem ntau teem rau 1.2 npaug ntawm cov txheej txheem phiaj xwm tus nqi (piv txwv li, phiaj 20 μS / cm, tswb nqi 24 μS / cm). Kev siv dej tsis siv neeg ntxiv thiab cov txheej txheem tso dej tau tshwm sim thaum qhov kev txwv ntau dhau.
Offline Periodic Sampling Inspection:
Sampling thiab kuaj pH, conductivity, chloride ion concentration, thiab turbidity yog ua txhua yam hloov.
Tsis tu ncua (piv txwv li, txhua lub limtiam) kuaj thiab kuaj tag nrho cov ntsiab lus ntawm cov hlau thiab cov ntsuas microbial yog ua los tiv thaiv kev loj hlob ntawm biofilm thiab kev kis kab mob thib ob.
Khoom siv tu:
Tsis tu ncua ntxuav lub tank rinsing kom tsis txhob muaj sludge buildup nyob rau hauv qab.
Hloov cov lim lim cartridge raws sijhawm kom ntseeg tau tias kev ua haujlwm zoo.
Tsis tu ncua calibrate cov twj paj nruag hauv internet kom tsis txhob ntsuas drift.