Printing number case imbalance, seem tus nqi soaring
Thaum peb lub tuam txhab siv Heidelberg CD102 xovxwm rau plaub- xim luam ntawv, peb pom qhov txawv txav ntawm 50% thiab 75% ib nrab ntawm cov xim magenta phaj hauv cov ntawv loj (Daim duab 1). Cov kev tshwm sim tseem ceeb yog nthuav dav thiab tsis sib npaug ntawm cov dots, cov duab tsis pom tseeb thiab cov ntawv nyeem, pom cov xim hloov thaum luam ntawv, thiab kev siv dej ntau ntxiv los ntawm lub tshuab. Cov teeb meem no ua rau pom tseeb xim fading ntawm prints, txo saturation, poob ntawm midtone gradation, thiab ib tug ceeb toom ntawm qhov tsis xws luag.
Ua Txhaum
Cov neeg ua haujlwm thawj zaug tau kuaj xyuas lub ntsej muag daim pam lub tog raj kheej thiab cov khoom noj khoom noj khoom haus, paub meej tias lubrication yog qhov qub thiab tias daim pam thiab gripper yog huv si thiab tsis muaj impurities. Txawm li cas los xij, thaum kuaj xyuas lub siab ntawm inking rollers tiv thaiv lub phaj, lawv pom qhov tsis ruaj khov. Tom qab kev daws teeb meem zoo, lub hauv paus ua rau qhov ua txhaum tau raug txheeb xyuas raws li hauv qab no: cov kabmob ntawm 80mm txoj kab uas hla ntawm lub phaj rau ntawm qhov kev khiav hauj lwm raug ntes vim tsis muaj lubrication. Thaum lub sijhawm ua haujlwm tshuab, cov kabmob vaj huam sib luag tig synchronously nrog lub phaj cov menyuam, ua rau hnyav hnyav ntawm lub khob kabmob (Daim duab 2). Tus nqi coj mus deb tshaj li tus qauv ntau, ua rau sib sib zog nqus hnav ntawm lub rooj zaum haum rau qhov chaw.
Thaum lub tshuab ua haujlwm tsis ua haujlwm, 80mm txoj kab uas hla lub phaj cov menyuam tuaj yeem txav tau yooj yim hauv lub khob ntim; Txawm li cas los xij, thaum lub sij hawm tsim kev xav, lub phaj rau cov menyuam thawj zaug hu rau cov menyuam inking unidirectionally, thiab tom qab kev xav, nws hu rau ob lub inking roller thiab phaj. Txhua lub sij hawm lub tshuab tig ib lub voj voog, lub sij hawm lub phaj rau cov menyuam kov lub phaj, qhov tsis sib xws tshwm sim hauv lub khob coj khaub ncaws. Qhov tshwm sim no ua ntej ua rau lub tshuab luam ntawv puas, ua rau qhov muag plooj thiab qhov tsis sib haum xeeb pom hauv daim duab 1. Tsis tas li ntawd, kev co ntawm lub phaj rau cov menyuam thaum sib cuag nrog lub phaj kuj ua rau cov kev hloov pauv tsis tu ncua ntawm lub siab ntawm nws thiab cov inking roller thiab nruab nrab ntawm nws thiab cov phaj, uas tuaj yeem yooj yim ua rau cov number case streaks thiab dej - luam ntawv ntawm tints.
Daim duab 1 Teeb meem luam tawm (sab laug) thiab hloov luam tawm (txoj cai)
Daim duab 2 Shaft Bowl Wear Condition
Standardized Maintenance Procedure
Txij li thaum daim ntawv rau cov menyuam feem ntau tso siab rau cov khoom siv rau kev txav mus los thiab tsuas yog ua rau qis qis qis thaum sib cuag nrog cov ntawv luam ntawv, nws yog ib qho tseem ceeb kom ua raws li cov qauv hauv daim duab 3 thaum kho cov ntawv luam ntawv siab. Lub siab piv ntawm daim ntawv rau cov menyuam thiab cov menyuam faib khoom yuav tsum yog 1 hli siab tshaj qhov siab ntawm cov ntawv luam ntawv. Yog hais tias lub siab ntawm daim ntawv rau cov menyuam thiab cov ntawv luam ntawv siab tshaj qhov nruab nrab ntawm nws thiab cov menyuam inking, daim ntawv cov menyuam yuav decelerate irregularly, ua rau ink hloov tsis sib xws, ua rau cov dej ntau dhau thiab number case, thiab thaum kawg ua rau cov xim tsis ruaj khov.
Hauv kev tsim khoom tiag tiag, thaum cov neeg ua haujlwm tshawb xyuas lub siab ntawm daim ntawv cov menyuam, lawv feem ntau tsuas yog tsom rau lub siab ntawm daim ntawv cov menyuam thiab cov ntawv luam ntawv, tsis quav ntsej lub siab nrog cov menyuam inking. Cov hauv qab no yog cov txheej txheem kev saib xyuas tus qauv.
(1) Kev kaw thiab tu: txiav tawm lub hwj chim thiab xauv lub cuab yeej nrog lub cim npe, siv tus neeg saib xyuas tu kom huv si kom huv si tshem cov kua nplaum los ntawm cov menyuam nto thiab cov khib nyiab hlau hauv cov kabmob vaj tse.
(2) Hloov Cov Khoom Siv: Hloov cov khoom qub ntawm lub Hoobkas (xws li cov kabmob / pob / tawb). Ua ntej kev teeb tsa, lawv yuav tsum tau ua ultrasonic tu thiab nitrogen purging kom paub tseeb tias xoom-kev teeb tsa tsis raug.
(3) Siab Calibration: Siv Heidelberg siab test zaj duab xis rau calibration (raws li qhia hauv daim duab 3).
(4) Qhia Txog Cov Qauv Siab: Cov kab zauv dav dav ntawm daim ntawv rau cov menyuam thiab cov menyuam yuav tsum yog 4 ± 1 hli; kev sib cuag dav nrog lub phaj luam ntawv yog teem rau ntawm 4-1mm.
Daim duab 3 Printing Pressure Adjustment Standard
Daim duab 4 Heidelberg stress test film
Cov nyhuv tu
Tom qab kev saib xyuas tus qauv zoo, cov khoom siv thiab cov khoom luam tawm tau zoo dua qub, thiab txhua qhov ntsuas tau rov qab mus rau qhov qub:
(1) 50% qhov hluav taws xob nce tus nqi ntawm magenta version hloov pauv rov qab los ntawm 22% ~ 45% ua ntej txij nkawm mus txog 18% (raws li qhov yuav tsum tau ua ntawm 17 ± 3% qhov hluav taws xob nce).
(2) Lub gradient smoothness ntawm gradient theem ntawm 75% dot ceev yog nce los ntawm 40%, thiab tsis muaj qhov pom tseeb discoloration thaum lub sij hawm luam ntawv txheej txheem.
(3) Cov ntaub ntawv saib xyuas kev tsim khoom tas mus li 8 teev qhia tau hais tias kev siv dej luam ntawv (tom qab kho lub faulty unit) txo los ntawm 20%, thiab cov seem seem yog txo los ntawm 22% mus rau 0.2%.
(4) Cov cuab yeej ntsuas kev ruaj ntseg pom tau tias thaum lub sijhawm 72 teev ntawm kev ua haujlwm tas mus li, cov duab hluav taws xob infrared tau pom tias qhov kub thiab txias ntawm lub phaj rau cov kabmob tau ruaj khov nyob rau hauv ib txwm muaj li ntawm 40 ± 2 degree, thiab tsis muaj qhov txawv txav ntawm qhov ntsuas kev vibration spectrum.
Teeb meem tsom xam
01/ Tsis zoo hauv cov txheej txheem tu
Ib qho ntawm cov laj thawj tseem ceeb ntawm qhov tsis ua haujlwm no yog tias muaj qhov tsis zoo hauv cov cuab yeej tswj xyuas, thiab cov haujlwm tseem ceeb ua txhaum txoj cai ntawm cov khoom siv tu, uas tau teev tseg tias tus number case roller yuav tsum tau muab tshem tawm txhua lub hlis, cov kabmob yuav tsum tau kuaj xyuas, lubricating roj ntxiv thiab cov kua nplaum rau lub siab yuav tsum tau hloov kho raws li tus qauv. Tsis tas li ntawd, thaum lub sij hawm txij nkawm yav dhau los, cov kev ntsuas zoo tib yam tau ua yuam kev siv los ntawm Heidelberg qhov tshwj xeeb tus lej cim kab dav nrhiav kom pom zaj duab xis, ua rau qhov sib txawv ntawm qhov sib txawv ntawm 2.2 hli, thiab lub siab ntawm tus number case roller tau yuam kev rau 6.2 hli (55% tshaj tus nqi tus qauv), uas ua rau muaj kev cuam tshuam ntau dhau.
Thaum lub cev indentation ntawm cov menyuam roj hmab yog 4 hli, lub siab yog 18N; Thaum lub indentation nce mus txog 6 hli, lub siab nce mus rau 63.5N, thiab thaum lub indentation mus txog 8 hli, lub siab yog siab li 149N. Qhov loj dua qhov indentation, qhov hnav ntawm cov khoom siv ceev dua, qhov ntau dua ntawm kev siv tus cwj mem thiab cov kua dej dampening, thiab cov khoom siv hluav taws xob nce ntxiv. Nyob rau tib lub sij hawm, siab dhau heev lawm yuav ua rau kom pom tseeb thaum tshav kub kub ntawm cov roj hmab cov menyuam, siab dua kub thiab dav indentation, uas yuav ua rau kom lub siab tiag tiag nyob rau hauv lub printing txheej txheem nonlinearly, accelerating lub hardening ntawm cov roj hmab cov menyuam. Txawm hais tias lub hardness ntawm cov menyuam roj hmab tuaj yeem txhim kho qhov kev tiv thaiv corrosion mus rau qee qhov, nws yuav txo qis cov dej thiab cov cwj mem hloov lub peev xwm, ua rau kom tus lej poob ntawm cov khoom siv luam ntawv thiab hnav cov ntawv luam ntawv phaj. Yog li ntawd, tsis muaj kev cuam tshuam rau kev luam ntawv zoo, lub siab ntawm cov roj hmab cov menyuam yuav tsum tau txo kom ntau li ntau tau, thiab qhov tsawg kawg nkaus tus nqi teev los ntawm cov chaw tsim khoom yuav tsum khaws cia kom zoo.
02/ Ua haujlwm zoo ntawm cov roj hmab cov menyuam tu
Kev tu txhua hnub ntawm cov roj hmab rollers yuav tsum tau tsim cov txheej txheem txheej txheem, thiab lub siab ntawm lub phaj yuav tsum tau kuaj xyuas thaum lub sij hawm muab txhua hnub; Thaum lub sij hawm tu txhua lub lim tiam, nws yog ib qho tsim nyog yuav tsum tau ua tib zoo saib xyuas lub siab ntawm lub phaj cov menyuam thiab tus cwj mem rau cov menyuam, thiab ua txoj haujlwm zoo hauv kev saib xyuas cov phaj number case rau cov menyuam kom ntseeg tau tias nws ib txwm khaws cia hauv lub xeev ruaj khov thaum lub sijhawm tsim khoom.
Qhov saum npoo ntawm cov menyuam roj hmab tshiab yuav tsum tsis sib npaug, thiab nws pom tau tias me ntsis astringent rau qhov kov (Daim duab 5), txhawm rau xyuas kom muaj kev sib hloov ntawm cov yeeb yaj kiab dej thiab number case. Nyob rau hauv tus txheej txheem ntawm kev siv lub sij hawm ntev -, vim yog kev sib cuag nrog tus number case, dampening kua thiab ntau cov kuab tshuaj txhua hnub, ua ke nrog kev cuam tshuam ntawm ib puag ncig sab nraud, qhov nyuaj ntawm cov menyuam roj hmab tshiab feem ntau yuav nce ntxiv tom qab lub sijhawm siv, uas yog lub xeev ib txwm muaj. Yog hais tias lub shrinkage thiab hardening ntawm cov roj hmab cov menyuam yog lub teeb, tus cwj pwm hloov cov cwj pwm tuaj yeem tswj tau los ntawm kev kho lub siab kom tsim nyog.
Qhov nce ntawm hardness ntawm cov roj hmab cov menyuam kuj txhais tau hais tias cov ntawv ntaub ntaub ntaub ntawv hmoov thiab cov oxidized tshuaj nyob rau hauv lub dampening tov tau muab tso rau saum npoo ntawm cov menyuam, ua ib tug hardened zaj duab xis. Cov yeeb yaj kiab tawv tawv no yuav tsum tau muab tshem tawm ib ntus (Daim duab 5) txhawm rau tiv thaiv nws los ntawm kev txuas ntxiv mus rau tawv thiab glaze, uas tuaj yeem ua rau tsis ruaj khov hauv kev hloov pauv dej thiab hloov dej. Thaum lub ntsej muag hardens, cov khoom qias neeg glazing yuav tsum tau muab tshem tawm nrog calcium tshem tawm paste thaum lub sij hawm tu.
Kev xaiv tus neeg saib xyuas yog qhov tseem ceeb tshaj plaws hauv kev txiav txim siab lub neej ntawm cov menyuam roj hmab. Txawm hais tias cov tshuaj detergents muaj zog heev yog yooj yim tshem tawm cov tawv tawv tawv ntawm qhov chaw, lawv tseem yuav ua rau lub ntsws ntawm cov menyuam roj hmab. Kev siv cov tshuaj ntxuav tsis zoo kuj tseem yuav ua rau muaj kev nthuav dav, kev cog lus thiab deformation ntawm cov roj hmab rollers, cuam tshuam rau kev ruaj ntseg ntawm lub siab ntawm cov roj hmab rollers, thiab txawm tias corrode cov kav dej, sealing rings, tshuab xim thiab txawm tias roj hmab pam. Yog li ntawd, semi- dej-raws li, qis-VOCs dej ntxuav tsheb yuav tsum raug xaiv. Tom qab kev saib xyuas, cov menyuam roj hmab yuav tsum tau rov qab los rau qhov kev xav ntawm cov menyuam roj hmab tshiab los txiav txim siab nyob rau hauv qhov chaw. Tsis muaj ib qho shortcuts rau kev tu, thiab nws yuav tsum tau ua tib zoo.
Daim duab 5 Nto ntawm cov menyuam roj hmab tshiab (sab laug) thiab ntog ntawm cov menyuam roj hmab glazed (txoj cai)
Tus yuam sij rau qhov zoo ntawm cov khoom luam tawm yog nyob rau hauv qhov sib npaug ntawm dej thiab tus cwj mem, thiab lub phaj dej rau cov menyuam thiab tus cwj mem ua lub luag haujlwm tseem ceeb hauv kev tswj qhov sib npaug. Hauv kev tsim khoom txhua hnub, ntau yam teeb meem zoo tshwm sim los ntawm kev hloov kho tsis raug lossis hnav ntawm cov menyuam roj hmab muaj ntau. Yog li ntawd, nws yog ib qho tseem ceeb uas yuav tsum tsis tu ncua tshuaj xyuas thiab ntsuas cov roj hmab rollers, thiab ua kom tsis tu ncua thiab kho cov menyuam nto, txoj kab uas hla, thiab siab kom ntseeg tau tias txhua tus menyuam nyob rau hauv qhov tsim nyog. Thaum kho cov cuab yeej siv, cov txheej txheem yuav tsum yog cov ntaub ntawv- tsav thiab tsim qauv, ua rau muaj kev txhim kho zoo hauv kev lag luam.