Bright etching ntawm anti-xeb txhuas yog ua nyob rau hauv acid etching agents. Acid etching agents feem ntau siv sulfuric acid, nitric acid, chromic acid thiab phosphoric acid. Nitric acid tuaj yeem yooj yim ua rau cov luam yeeb loj loj thiab ua paug rau ib puag ncig. Kev siv cov phosphoric thiab sulfuric acid etching agents nrog sulfur-muaj heterocyclic organic compounds tuaj yeem hloov qee cov nitric acid, xws li gloss.
Nyob rau hauv alkaline etchants, caustic soda, soda tshauv thiab sodium phosphate yog siv, nrog ib tug me me ntawm surfactant ntxiv. Kev xeb-pov thawj txhuas feem ntau tuaj yeem nqa tawm hauv alkaline degreasers ntawm qhov kub siab tshaj 40 degree.
Hydrogen peroxide thiab hydrofluoric acid kuj siv tau, thiab hydrogen peroxide thiab acetic acid kuj siv tau. Piv txwv li, 45mL / L, 80mL / L, siv hydrogen peroxide thiab acetic acid rau 10 ~ 15s, tsau ntawm chav tsev kub. Nco ntsoov tias kev ua haujlwm yuav tsum tau ua raws li qhov cua.
Rust-proof aluminium ntau yam xav tau cov etchants sib txawv los xaiv raws li cov ntaub ntawv sib txawv thaum etching. Hauv kev xeb-pov thawj aluminium etching, nws yog ib qho tsim nyog yuav tsum tau tshem tawm burrs, vuam seams thiab casting nto residues siv cov txheej txheem, thiab tom qab ntawd ua degreasing thiab degreasing tu los ntawm alkaline degreasing.
Cov kauj ruam rau etching anti-xeb txhuas daim hlau yog raws li nram no:
Tom qab ziab, etching yog ua.
Kev tshuaj ntsuam luam ntawv siv lub phaj txhuas huv si, polyester lossis nylon monofilament mesh, kho nws ntawm lub vijtsam thav duab nrog lub stretcher, thiab tom qab ntawd siv cov cuab yeej sizing los txhuam thiab siv cov kua nplaum photosensitive 2-3 zaug.
Tom qab txheej zaj duab xis yog qhuav, cov yeeb yaj kiab dub thiab dawb nrog cov duab thaij duab yog txuas nrog rau txheej txheej mesh. Tom qab raug thiab txhim kho, qhov screen printing template tau txais.
Kho cov phaj txhuas thiab cov qauv qauv ntawm qhov sib thooj ntawm lub tshuab luam ntawv tshuaj ntsuam, siv alkali-soluble acid-resistant number case los luam cov qauv xav tau, thiab cia nws qhuav lawm.
Lub vijtsam luam ntawv number case yuav tsum tau muab tshem tawm tom qab etching. Feem ntau, kua qaub-resistant number case yog yooj yim soluble nyob rau hauv alkali, thiab tus number case yuav raug tshem tawm los ntawm immersing nws rau ob peb feeb.
Tom qab tshem tawm, yog tias xav tau lub teeb ci siab, nws tuaj yeem polished thiab tom qab ntawd dyed.
Tom qab dyeing, txhawm rau tiv thaiv kom tsis txhob muaj xim thiab ua kom hnav thiab tiv thaiv corrosion, pob tshab kua roj vanish tuaj yeem txau.
Aluminium phaj nws tus kheej muaj qhov zoo corrosion kuj thiab tsis stained. Nws tsis tas yuav tsum tau coated nrog pob tshab xim, nyob ntawm qhov xav tau tiag tiag. Yog tias nws yuav tsum tau khaws cov xim qub thiab gloss ntawm txhuas phaj, tom qab tshem tawm cov number case thiab ntxuav nws, muab tso rau hauv ib qho kev daws ntawm 50% HN03 (ntim feem) thiab 50% H20 rau 10-20 feeb rau passivation kev kho mob, thiaj li hais tias cov txhuas phaj tuaj yeem etched nrog cov qauv. Nrog cov yeeb yaj kiab tiv thaiv tshiab, koj tuaj yeem tau txais cov khoom zoo nkauj.
