Ib qho combo txav los daws qhov teeb meem ntawm kev ntxuav gravure rollers
Cov kws tshaj lij kev ua haujlwm hauv khw feem ntau hla qee cov tshuaj alkaline uas muaj zog los yog cov khoom hnyav hnyav kom muaj kev nyab xeeb ntau dua -tus phooj ywg, qis- tsw, thiab tiv thaiv roj hmab. Hauv kev tsim khoom, nws yog ib txwm muaj rau cov dej- roj gravure rollers tau txhaws, feem ntau yog vim muaj cov calcium deposits, dej qhuav- roj residues, thiab inorganic ntsev precipitates, uas ua rau lawv nyuaj los ntxuav.
Dej- roj tshuaj ntsuam cov menyuam ua ntej ntxuav
Cov dej huv huv - roj anilox cov menyuam
Raws li cov txheej txheem tshuaj, tus nqi qis - cov txheej txheem ua ke ntawm "lub tsheb ntxuav dej + ntxhua khaub ncaws ntxhua khaub ncaws + nylon txhuam" tuaj yeem siv los daws qhov teeb meem ntawm kev ntxuav dej- roj anilox rollers.
Txoj cai ntawm kev ua
01/ Cov ntxhua khaub ncaws ntxhua khaub ncaws (cov khoom xyaw tseem ceeb: sodium carbonate / phosphate)
Cov ntxhua khaub ncaws ntxhua khaub ncaws yog ib yam khoom muaj zog alkaline. Raws li kev lag luam tu cov hauv paus ntsiab lus, alkaline additives (xws li sodium carbonate) tuaj yeem ua rau cov roj hydrolyze zoo, tshwj xeeb tshaj yog rau cov av tawv tawv thaum lub sij hawm, nrog kev nkag mus thiab emulsifying muaj peev xwm tshaj li cov tshuaj detergents zoo tib yam.
Tsis tas li ntawd, cov ntsev sau rau hauv cov ntxhua khaub ncaws ntxhua khaub ncaws ua rau muaj kev sib txhuam thiab dispersibility, pab kom tshem tawm cov av tob hauv cov mesh qhov ntawm cov anilox rollers.
02/ Lub Tsheb Ntxuav Dej / Cov Tshuaj Ntxuav (Organic Solvents)
Cov dej ntxuav tsheb feem ntau muaj cov kuab tshuaj muaj zog uas tuaj yeem ua rau cov tawv nqaij qhuav thiab cov roj tsis tiav thiab dej.
03/ Nylon txhuam (lub cev txhuam)
Ua ke nrog cov tshuaj tua kab mob, kev txhuam lub cev yog qhov tseem ceeb rau kev qhib lub mesh kab noj hniav. Txawm li cas los xij, nco ntsoov tias cov txhuam hniav nylon tsis tshua muaj txiaj ntsig thiab tuaj yeem siv nrog txhuam tooj liab (nrog lub zog maj mam), tab sis rau siab - precision ceramic anilox rollers, tseem muaj kev pheej hmoo ntawm khawb.
Siv lub "Restricted Zone"
Txawm hais tias txoj kev no zoo heev, hauv Heidelberg luam ntawv cov cuab yeej tu, txij li cov khoom siv luam ntawv yog cov tshuab precision, cov ntsiab lus hauv qab no yuav tsum tau sau tseg thaum lub sijhawm ua haujlwm.
01/ Kev siv ethanol raug txwv nruj heev
Nws yog nruj me ntsis txwv tsis pub siv ethanol los yog cov kuab tshuaj organic los ntxuav qhov precision xws li them cov chais, thiab tsis txhob sib xyaw nrog ethanol thaum ntxuav cov dej thiab cov roj chais. Ethanol evaporates sai, yooj yim ua rau roj hmab rau hnub nyoog thiab tawg, thiab yog flammable.
02/ Tiv thaiv corrosion ntawm roj hmab qhov chaw
Yog hais tias muaj zog alkali Cheebtsam hauv cov ntxhua khaub ncaws ntxhua khaub ncaws (xws li poov tshuaj / sodium hydroxide) nyob rau saum npoo, lawv tuaj yeem ua rau cov dej corrode - roj rau cov menyuam nto, ua rau txo lipophilicity thiab cov ntsiab lus crystallization, uas ua rau muaj kev cuam tshuam rau cov dej tom ntej - roj uniformity.
03/ Tiv thaiv corrosion ntawm hlau qhov chaw
Yog hais tias cov tshuaj alkaline muaj zog tsis tau muab yaug kom huv si, nws yuav corrode cov hlau nruas lossis cov kabmob ntawm cov khoom siv.
Txoj kev optimization tswv yim
Txhawm rau kom ntseeg tau tias kev ntxuav tau zoo thaum siv cov cuab yeej siv tau ntev, cov kev hloov kho hauv qab no raug pom zoo.
01/ "Lub tsheb ntxuav dej + ntxhua khaub ncaws" siv txoj kev ntub dej
Dissolve lub tshuab ntxhua khaub ncaws hauv dej sov thiab ntxiv me me ntawm cov dej ntxuav tsheb. Tsis txhob siv cov tshuaj ntxhua khaub ncaws ncaj qha rau ntawm cov menyuam, vim tias qhov concentration siab dhau thiab tuaj yeem hlawv cov roj hmab tau yooj yim.
02/ "Neutralization" thiab "Rinsing" Tom qab txhuam
Tom qab txhuam hniav, yaug kom huv si: yaug kom huv si nrog dej kom ntau kom txog thaum tsis muaj qhov zoo nkauj los yog ua npuas ncauj.
03/ Pom zoo pickling thiab neutralization (yeem)
Yog hais tias alkaline residue yog ib qho kev txhawj xeeb, koj tuaj yeem yaug cov dej ntawm cov menyuam yaus sai sai nrog cov kua dej dawb huv (acidic) kom tsis txhob muaj cov tshuaj alkaline ntxiv, tom qab ntawd yaug nrog dej huv kom tsis txhob lo los yog crystallization.
04/ Siv cov txhuam hniav kom raug
Paub meej tias cov khoom siv anilox rau cov menyuam yog chrome-plated lossis ceramic. Ceramic rollers yuav tsum tsis txhob siv txhuam hlau (xws li txhuam tooj liab); tsuas yog nylon txhuam tau tso cai. Cov txhuam tooj liab tuaj yeem siv tau, tab sis nrog lub siab maj mam kom tsis txhob khawb.
Cov mis no tseem ceeb siv cov txiaj ntsig triple ntawm "muaj zog alkali (cov hmoov ntxhua khaub ncaws) + hnyav (lub tsheb ntxuav dej) + kev sib txhuam ntawm lub cev (nylon txhuam)" kom kov yeej cov tawv nqaij tawv.
Thaum ua haujlwm, nco ntsoov: tsau kom huv si, txhuam kom huv si, yaug kom huv si, thiab tsis txhob siv cov kua qaub lossis dej cawv-raws li cov kuab tshuaj.