1.What yog qhov cuam tshuam ntawm pickling thiab rinsing dej zoo?
Calcium / Magnesium ions (Hardness Eexus) kev phom sij:
Kev hnov mob nrog cov kua qaub hydrocroic kom tsim CCL₂ / MgCL₂, uas cov nyiaj no nyuaj rau ntawm cov hlau ntu, thiab ua rau plating me me tom qab plating.
Iron ion (Fe²⁺) accumulation: When the Fe²⁺ concentration in the pickling solution is >80G / L, FECL₂ CRYSTALS yog tsim thiab txuas rau saum npoo. Cov seem tom qab yaug ua laj ua rau cov xim porosity ntawm cov txheej kom nce los ntawm 30%.
Tswj cov kev daws teeb meem: Siv Demineralized dej kom dilute hydroic acid;
Nruab ion txauv exchain lossis thim rov qab osmosis system kom tshem tawm core / mg²⁺.
2.Qhov dab tsi ua dej tsis zoo muaj cov nyhuv kev ua kom tiav?
Kev npaj ntawm plating pab thiab repreningishing dej
Sodium/potassium ions: When the concentration is >100PPM, nws rhuav tshem qhov kev ruaj nrees ntawm ZINCLANKL PLABTATION, ua rau muaj kev nce hauv kev daws viscosity thiab ntxiv rau hauv cov haujlwm ua haujlwm nqa tawm.
Sulfate: nws reacts nrog zn²⁺ nyob rau hauv lub plating pab los ua zsso₄ nag los nag, thiab cov nag lossis nag lossis nag los ua zinc slag.
Silicate: Nws los ntawm cov dej khov av lossis cov khoom siv colloidal silical silicon adsorbed nyob rau saum npoo hlau-ua rau txheej txheej nplaum kom tsawg dua ntawm 40%.
3.Qhov dab tsi yog cov kev pheej hmoo nyob rau hauv cov dej txias tom qab plating?
Deatolved oxygen: 5ppm ua induces oxygen concentration sib txawv corrosion, tsim kom muaj ntxau ntau dua li / heh) ₂ (tuab tuaj yeem ncav cuag 10μm).
Chloride ions: seem ntawm kab ntawv hauv dej txias, ua pitting thiab perforation ntawm txheej.
Cov kab mob me: Daim biofilm txuas rau txheej, zais cia acidic metabolites, thiab cov tsiaj hauv zos hauv zos rau 4.0, nrawm corrosion.
4.How kho kom dej khib nyiab?
Fluoride: It comes from the fluorine-containing inhibitor of acid washing. When the concentration is >15PPM, nws yuav corde lub ro membrane thiab xav tau txiv qaub nag los pretreatment.
Grease: 50mg / l ntawm grease yuav clog cov resin kem thiab yuav tsum tau haus cov flotation sib cais + activated carbon adsorption.
5.Qhov yog tus muaj txiaj ntsig zoo ntawm cov dej tswj tau zoo?
Txo cov nqi cuam tshuam: tswj tuav pob zeb / hardness tuaj yeem txo cov kev plam plating thiab dawb xeb los ntawm ntau dua 70%;
Zinc Tau Txais Txuag: Ua kom zoo dua cov dej ua tau zoo ntawm cov plating pab, zinc slag tiam ↓ 25%;
Environmental compliance: Wastewater classification reuse rate>80%, ua tiav ze-xoom opissions;
Txheej Txheej Lub Neej Muaj Peev Xwm: Cua txias dej tiv thaiv inhibition kev kho mob txuas ntxiv lub neej corrosion ntawm txheej los ntawm 30%.